* [PATCH] selftests: powerpc: Add test for execute-disabled pkeys
From: Sandipan Das @ 2020-05-08 16:23 UTC (permalink / raw)
To: mpe
Cc: fweimer, aneesh.kumar, linuxram, linux-mm, linux-kselftest,
linuxppc-dev, bauerman
Apart from read and write access, memory protection keys can
also be used for restricting execute permission of pages on
powerpc. This adds a test to verify if the feature works as
expected.
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
---
tools/testing/selftests/powerpc/mm/Makefile | 3 +-
.../selftests/powerpc/mm/pkey_exec_prot.c | 326 ++++++++++++++++++
2 files changed, 328 insertions(+), 1 deletion(-)
create mode 100644 tools/testing/selftests/powerpc/mm/pkey_exec_prot.c
diff --git a/tools/testing/selftests/powerpc/mm/Makefile b/tools/testing/selftests/powerpc/mm/Makefile
index b9103c4bb414..2816229f648b 100644
--- a/tools/testing/selftests/powerpc/mm/Makefile
+++ b/tools/testing/selftests/powerpc/mm/Makefile
@@ -3,7 +3,7 @@ noarg:
$(MAKE) -C ../
TEST_GEN_PROGS := hugetlb_vs_thp_test subpage_prot prot_sao segv_errors wild_bctr \
- large_vm_fork_separation bad_accesses
+ large_vm_fork_separation bad_accesses pkey_exec_prot
TEST_GEN_PROGS_EXTENDED := tlbie_test
TEST_GEN_FILES := tempfile
@@ -17,6 +17,7 @@ $(OUTPUT)/prot_sao: ../utils.c
$(OUTPUT)/wild_bctr: CFLAGS += -m64
$(OUTPUT)/large_vm_fork_separation: CFLAGS += -m64
$(OUTPUT)/bad_accesses: CFLAGS += -m64
+$(OUTPUT)/pkey_exec_prot: CFLAGS += -m64
$(OUTPUT)/tempfile:
dd if=/dev/zero of=$@ bs=64k count=1
diff --git a/tools/testing/selftests/powerpc/mm/pkey_exec_prot.c b/tools/testing/selftests/powerpc/mm/pkey_exec_prot.c
new file mode 100644
index 000000000000..b346ad205e68
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mm/pkey_exec_prot.c
@@ -0,0 +1,326 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/*
+ * Copyright 2020, Sandipan Das, IBM Corp.
+ *
+ * Test if applying execute protection on pages using memory
+ * protection keys works as expected.
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+
+#include <time.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+#include "utils.h"
+
+/* Override definitions as they might be inconsistent */
+#undef PKEY_DISABLE_ACCESS
+#define PKEY_DISABLE_ACCESS 0x3
+
+#undef PKEY_DISABLE_WRITE
+#define PKEY_DISABLE_WRITE 0x2
+
+#undef PKEY_DISABLE_EXECUTE
+#define PKEY_DISABLE_EXECUTE 0x4
+
+/* Older distros might not define this */
+#ifndef SEGV_PKUERR
+#define SEGV_PKUERR 4
+#endif
+
+#define SYS_pkey_mprotect 386
+#define SYS_pkey_alloc 384
+#define SYS_pkey_free 385
+
+#define PKEY_BITS_PER_PKEY 2
+#define NR_PKEYS 32
+
+#define PKEY_BITS_MASK ((1UL << PKEY_BITS_PER_PKEY) - 1)
+
+static unsigned long pkeyreg_get(void)
+{
+ unsigned long uamr;
+
+ asm volatile("mfspr %0, 0xd" : "=r"(uamr));
+ return uamr;
+}
+
+static void pkeyreg_set(unsigned long uamr)
+{
+ asm volatile("isync; mtspr 0xd, %0; isync;" : : "r"(uamr));
+}
+
+static void pkey_set_rights(int pkey, unsigned long rights)
+{
+ unsigned long uamr, shift;
+
+ shift = (NR_PKEYS - pkey - 1) * PKEY_BITS_PER_PKEY;
+ uamr = pkeyreg_get();
+ uamr &= ~(PKEY_BITS_MASK << shift);
+ uamr |= (rights & PKEY_BITS_MASK) << shift;
+ pkeyreg_set(uamr);
+}
+
+static int sys_pkey_mprotect(void *addr, size_t len, int prot, int pkey)
+{
+ return syscall(SYS_pkey_mprotect, addr, len, prot, pkey);
+}
+
+static int sys_pkey_alloc(unsigned long flags, unsigned long rights)
+{
+ return syscall(SYS_pkey_alloc, flags, rights);
+}
+
+static int sys_pkey_free(int pkey)
+{
+ return syscall(SYS_pkey_free, pkey);
+}
+
+static volatile int fpkey, fcode, ftype, faults;
+static unsigned long pgsize, numinsns;
+static volatile unsigned int *faddr;
+static unsigned int *insns;
+
+static void segv_handler(int signum, siginfo_t *sinfo, void *ctx)
+{
+ /* Check if this fault originated because of the expected reasons */
+ if (sinfo->si_code != SEGV_ACCERR && sinfo->si_code != SEGV_PKUERR) {
+ printf("got an unexpected fault, code = %d\n",
+ sinfo->si_code);
+ goto fail;
+ }
+
+ /* Check if this fault originated from the expected address */
+ if (sinfo->si_addr != (void *) faddr) {
+ printf("got an unexpected fault, addr = %p\n",
+ sinfo->si_addr);
+ goto fail;
+ }
+
+ /* Check if the expected number of faults has been exceeded */
+ if (faults == 0)
+ goto fail;
+
+ fcode = sinfo->si_code;
+
+ /* Restore permissions in order to continue */
+ switch (fcode) {
+ case SEGV_ACCERR:
+ if (mprotect(insns, pgsize, PROT_READ | PROT_WRITE)) {
+ perror("mprotect");
+ goto fail;
+ }
+ break;
+ case SEGV_PKUERR:
+ if (sinfo->si_pkey != fpkey)
+ goto fail;
+
+ if (ftype == PKEY_DISABLE_ACCESS) {
+ pkey_set_rights(fpkey, 0);
+ } else if (ftype == PKEY_DISABLE_EXECUTE) {
+ /*
+ * Reassociate the exec-only pkey with the region
+ * to be able to continue. Unlike AMR, we cannot
+ * set IAMR directly from userspace to restore the
+ * permissions.
+ */
+ if (mprotect(insns, pgsize, PROT_EXEC)) {
+ perror("mprotect");
+ goto fail;
+ }
+ } else {
+ goto fail;
+ }
+ break;
+ }
+
+ faults--;
+ return;
+
+fail:
+ /* Restore all page permissions to avoid repetitive faults */
+ if (mprotect(insns, pgsize, PROT_READ | PROT_WRITE | PROT_EXEC))
+ perror("mprotect");
+ if (sinfo->si_code == SEGV_PKUERR)
+ pkey_set_rights(sinfo->si_pkey, 0);
+ faults = -1; /* Something unexpected happened */
+}
+
+static int pkeys_unsupported(void)
+{
+ bool using_hash = false;
+ char line[128];
+ int pkey;
+ FILE *f;
+
+ f = fopen("/proc/cpuinfo", "r");
+ FAIL_IF(!f);
+
+ /* Protection keys are currently supported on Hash MMU only */
+ while (fgets(line, sizeof(line), f)) {
+ if (strcmp(line, "MMU : Hash\n") == 0) {
+ using_hash = true;
+ break;
+ }
+ }
+
+ fclose(f);
+ SKIP_IF(!using_hash);
+
+ /* Check if the system call is supported */
+ pkey = sys_pkey_alloc(0, 0);
+ SKIP_IF(pkey < 0);
+ sys_pkey_free(pkey);
+
+ return 0;
+}
+
+static int test(void)
+{
+ struct sigaction act;
+ int pkey, ret, i;
+
+ ret = pkeys_unsupported();
+ if (ret)
+ return ret;
+
+ /* Setup signal handler */
+ act.sa_handler = 0;
+ act.sa_sigaction = segv_handler;
+ FAIL_IF(sigprocmask(SIG_SETMASK, 0, &act.sa_mask) != 0);
+ act.sa_flags = SA_SIGINFO;
+ act.sa_restorer = 0;
+ FAIL_IF(sigaction(SIGSEGV, &act, NULL) != 0);
+
+ /* Setup executable region */
+ pgsize = sysconf(_SC_PAGESIZE);
+ numinsns = pgsize / sizeof(unsigned int);
+ insns = (unsigned int *) mmap(NULL, pgsize, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+ FAIL_IF(insns == MAP_FAILED);
+
+ /* Write the instruction words */
+ for (i = 0; i < numinsns - 1; i++)
+ insns[i] = 0x60000000; /* nop */
+
+ /*
+ * Later, to jump to the executable region, we use a linked
+ * branch which sets the return address automatically in LR.
+ * Use that to return back.
+ */
+ insns[numinsns - 1] = 0x4e800020; /* blr */
+
+ /* Allocate a pkey that restricts execution */
+ pkey = sys_pkey_alloc(0, PKEY_DISABLE_EXECUTE);
+ FAIL_IF(pkey < 0);
+
+ /*
+ * Pick a random instruction address from the executable
+ * region.
+ */
+ srand(time(NULL));
+ faddr = &insns[rand() % (numinsns - 1)];
+
+ /* The following two cases will avoid SEGV_PKUERR */
+ ftype = -1;
+ fpkey = -1;
+
+ /*
+ * Read an instruction word from the address when AMR bits
+ * are not set.
+ *
+ * This should not generate a fault as having PROT_EXEC
+ * implicitly allows reads. The pkey currently restricts
+ * execution only based on the IAMR bits. The AMR bits are
+ * cleared.
+ */
+ faults = 0;
+ FAIL_IF(sys_pkey_mprotect(insns, pgsize, PROT_EXEC, pkey) != 0);
+ printf("read from %p, pkey is execute-disabled\n", (void *) faddr);
+ i = *faddr;
+ FAIL_IF(faults != 0);
+
+ /*
+ * Write an instruction word to the address when AMR bits
+ * are not set.
+ *
+ * This should generate an access fault as having just
+ * PROT_EXEC also restricts writes. The pkey currently
+ * restricts execution only based on the IAMR bits. The
+ * AMR bits are cleared.
+ */
+ faults = 1;
+ FAIL_IF(sys_pkey_mprotect(insns, pgsize, PROT_EXEC, pkey) != 0);
+ printf("write to %p, pkey is execute-disabled\n", (void *) faddr);
+ *faddr = 0x60000000; /* nop */
+ FAIL_IF(faults != 0 || fcode != SEGV_ACCERR);
+
+ /* The following three cases will generate SEGV_PKUERR */
+ ftype = PKEY_DISABLE_ACCESS;
+ fpkey = pkey;
+
+ /*
+ * Read an instruction word from the address when AMR bits
+ * are set.
+ *
+ * This should generate a pkey fault based on AMR bits only
+ * as having PROT_EXEC implicitly allows reads.
+ */
+ faults = 1;
+ FAIL_IF(sys_pkey_mprotect(insns, pgsize, PROT_EXEC, pkey) != 0);
+ printf("read from %p, pkey is execute-disabled, access-disabled\n",
+ (void *) faddr);
+ pkey_set_rights(pkey, PKEY_DISABLE_ACCESS);
+ i = *faddr;
+ FAIL_IF(faults != 0 || fcode != SEGV_PKUERR);
+
+ /*
+ * Write an instruction word to the address when AMR bits
+ * are set.
+ *
+ * This should generate two faults. First, a pkey fault based
+ * on AMR bits and then an access fault based on PROT_EXEC.
+ */
+ faults = 2;
+ FAIL_IF(sys_pkey_mprotect(insns, pgsize, PROT_EXEC, pkey) != 0);
+ printf("write to %p, pkey is execute-disabled, access-disabled\n",
+ (void *) faddr);
+ pkey_set_rights(pkey, PKEY_DISABLE_ACCESS);
+ *faddr = 0x60000000; /* nop */
+ FAIL_IF(faults != 0 || fcode != SEGV_ACCERR);
+
+ /*
+ * Jump to the executable region. This should generate a pkey
+ * fault based on IAMR bits. AMR bits will not affect execution.
+ */
+ faddr = insns;
+ ftype = PKEY_DISABLE_EXECUTE;
+ fpkey = pkey;
+ faults = 1;
+ FAIL_IF(sys_pkey_mprotect(insns, pgsize, PROT_EXEC, pkey) != 0);
+ pkey_set_rights(pkey, PKEY_DISABLE_ACCESS);
+ printf("execute at %p, ", (void *) faddr);
+ printf("pkey is execute-disabled, access-disabled\n");
+
+ /* Branch into the executable region */
+ asm volatile("mtctr %0" : : "r"((unsigned long) insns));
+ asm volatile("bctrl");
+ FAIL_IF(faults != 0 || fcode != SEGV_PKUERR);
+
+ /* Cleanup */
+ munmap((void *) insns, pgsize);
+ sys_pkey_free(pkey);
+
+ return 0;
+}
+
+int main(void)
+{
+ test_harness(test, "pkey_exec_prot");
+}
--
2.17.1
^ permalink raw reply related
* Re: [PATCH v7 2/5] seq_buf: Export seq_buf_printf() to external modules
From: Steven Rostedt @ 2020-05-08 16:27 UTC (permalink / raw)
To: Borislav Petkov
Cc: Cezary Rojewski, linux-nvdimm, linux-kernel, Piotr Maziarz,
Aneesh Kumar K . V, Vaibhav Jain, linuxppc-dev
In-Reply-To: <20200508160935.GB19436@zn.tnic>
On Fri, 8 May 2020 18:09:35 +0200
Borislav Petkov <bp@alien8.de> wrote:
> On Fri, May 08, 2020 at 05:30:31PM +0530, Vaibhav Jain wrote:
> > I am referring to Kernel Loadable Modules with MODULE_LICENSE("GPL")
> > here.
>
> And what does "external" refer to? Because if it is out-of-tree, we
> don't export symbols for out-of-tree modules.
I've always wondered about this. Why not?
-- Steve
^ permalink raw reply
* Re: ioremap() called early from pnv_pci_init_ioda_phb()
From: Qian Cai @ 2020-05-08 17:41 UTC (permalink / raw)
To: Christophe Leroy, Michael Ellerman; +Cc: linuxppc-dev, LKML
In-Reply-To: <B183CDAA-DA88-4760-9C1B-F73A8F7840E7@lca.pw>
> On May 8, 2020, at 10:39 AM, Qian Cai <cai@lca.pw> wrote:
>
> Booting POWER9 PowerNV has this message,
>
> "ioremap() called early from pnv_pci_init_ioda_phb+0x420/0xdfc. Use early_ioremap() instead”
>
> but use the patch below will result in leaks because it will never call early_iounmap() anywhere. However, it looks me it was by design that phb->regs mapping would be there forever where it would be used in pnv_ioda_get_inval_reg(), so is just that check_early_ioremap_leak() initcall too strong?
>
> --- a/arch/powerpc/platforms/powernv/pci-ioda.c
> +++ b/arch/powerpc/platforms/powernv/pci-ioda.c
> @@ -36,6 +36,7 @@
> #include <asm/firmware.h>
> #include <asm/pnv-pci.h>
> #include <asm/mmzone.h>
> +#include <asm/early_ioremap.h>
>
> #include <misc/cxl-base.h>
>
> @@ -3827,7 +3828,7 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np,
> /* Get registers */
> if (!of_address_to_resource(np, 0, &r)) {
> phb->regs_phys = r.start;
> - phb->regs = ioremap(r.start, resource_size(&r));
> + phb->regs = early_ioremap(r.start, resource_size(&r));
> if (phb->regs == NULL)
> pr_err(" Failed to map registers !\n”);
This will also trigger a panic with debugfs reads, so isn’t that this commit bogus at least for powerpc64?
d538aadc2718 (“powerpc/ioremap: warn on early use of ioremap()")
11017.617022][T122068] Faulting instruction address: 0xc0000000000db564
[11017.617257][T122066] Faulting instruction address: 0xc0000000000db564
[11017.617950][T122073] Faulting instruction address: 0xc0000000000db564
[11017.618888][T122064] BUG: Unable to handle kernel data access on read at 0xffffffffffe20e10
[11017.618935][T122064] Faulting instruction address: 0xc0000000000db564
[11017.737996][T122072]
[11017.738010][T122073] Oops: Kernel access of bad area, sig: 11 [#2]
[11017.738024][T122073] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=256 DEBUG_PAGEALLOC NUMA PowerNV
[11017.738051][T122073] Modules linked in: brd ext4 crc16 mbcache jbd2 loop kvm_hv kvm ip_tables x_tables xfs sd_mod bnx2x ahci libahci tg3 mdio libata libphy firmware_class dm_mirror dm_region_hash dm_log dm_mod
[11017.738110][T122073] CPU: 108 PID: 122073 Comm: read_all Tainted: G D W 5.7.0-rc4-next-20200508+ #4
[11017.738138][T122073] NIP: c0000000000db564 LR: c00000000056f660 CTR: c0000000000db550
[11017.738173][T122073] REGS: c000000374f6f980 TRAP: 0380 Tainted: G D W (5.7.0-rc4-next-20200508+)
[11017.738234][T122073] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 22002282 XER: 20040000
[11017.738278][T122073] CFAR: c00000000056f65c IRQMASK: 0
[11017.738278][T122073] GPR00: c00000000056f660 c000000374f6fc10 c000000001689400 c000201ffc41aa00
[11017.738278][T122073] GPR04: c000000374f6fc70 0000000000000000 0000000000000000 0000000000000001
[11017.738278][T122073] GPR08: 0000000000000000 ffffffffffe20000 0000000000000000 c0000008ee380080
[11017.738278][T122073] GPR12: c0000000000db550 c000201fff671280 0000000000000000 0000000000000000
[11017.738278][T122073] GPR16: 0000000000000002 0000000010040800 000000001001ccd8 000000001001cc80
[11017.738278][T122073] GPR20: 000000001001cc98 000000001001ccc8 000000001001cca8 000000001001cb48
[11017.738278][T122073] GPR24: 0000000000000000 0000000000000000 00000000000003ff 00007fffebb67390
[11017.738278][T122073] GPR28: c000000374f6fd90 c000200c0c6a7550 0000000000000000 c000200c0c6a7500
[11017.738542][T122073] NIP [c0000000000db564] pnv_eeh_dbgfs_get_inbB+0x14/0x30
[11017.738579][T122073] LR [c00000000056f660] simple_attr_read+0xa0/0x180
[11017.738613][T122073] Call Trace:
[11017.738645][T122073] [c000000374f6fc10] [c00000000056f630] simple_attr_read+0x70/0x180 (unreliable)
[11017.738672][T122073] [c000000374f6fcb0] [c00000000064a2e0] full_proxy_read+0x90/0xe0
[11017.738686][T122073] [c000000374f6fd00] [c00000000051fe0c] __vfs_read+0x3c/0x70
[11017.738722][T122073] [c000000374f6fd20] [c00000000051feec] vfs_read+0xac/0x170
[11017.738757][T122073] [c000000374f6fd70] [c00000000052034c] ksys_read+0x7c/0x140
[11017.738818][T122073] [c000000374f6fdc0] [c000000000038af4] system_call_exception+0x114/0x1e0
[11017.738867][T122073] [c000000374f6fe20] [c00000000000c8f0] system_call_common+0xf0/0x278
[11017.738916][T122073] Instruction dump:
[11017.738948][T122073] 7c0004ac f9490d10 a14d0c78 38600000 b14d0c7a 4e800020 60000000 7c0802a6
[11017.739001][T122073] 60000000 e9230278 e9290028 7c0004ac <e9290e10> 0c090000 4c00012c 38600000
[11017.739052][T122073] ---[ end trace f68728a0d3053b5e ]---
[11017.828156][T122073]
[11017.828170][T122068] Oops: Kernel access of bad area, sig: 11 [#3]
[11017.828184][T122068] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=256 DEBUG_PAGEALLOC NUMA PowerNV
[11017.828209][T122068] Modules linked in: brd ext4 crc16 mbcache jbd2 loop kvm_hv kvm ip_tables x_tables xfs sd_mod bnx2x ahci libahci tg3 mdio libata libphy firmware_class dm_mirror dm_region_hash dm_log dm_mod
[11017.828265][T122068] CPU: 88 PID: 122068 Comm: read_all Tainted: G D W 5.7.0-rc4-next-20200508+ #4
[11017.828303][T122068] NIP: c0000000000db564 LR: c00000000056f660 CTR: c0000000000db550
[11017.828338][T122068] REGS: c000001ea20cf980 TRAP: 0380 Tainted: G D W (5.7.0-rc4-next-20200508+)
[11017.828386][T122068] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 22002282 XER: 20040000
[11017.828437][T122068] CFAR: c00000000056f65c IRQMASK: 0
[11017.828437][T122068] GPR00: c00000000056f660 c000001ea20cfc10 c000000001689400 c000201ffc41aa00
[11017.828437][T122068] GPR04: c000001ea20cfc70 0000000000000000 0000000000000000 0000000000000001
[11017.828437][T122068] GPR08: 0000000000000000 ffffffffffe20000 0000000000000000 c0000018930e8880
[11017.828437][T122068] GPR12: c0000000000db550 c000201fff691100 0000000000000000 0000000000000000
[11017.828437][T122068] GPR16: 0000000000000002 0000000010040800 000000001001ccd8 000000001001cc80
[11017.828437][T122068] GPR20: 000000001001cc98 000000001001ccc8 000000001001cca8 000000001001cb48
[11017.828437][T122068] GPR24: 0000000000000000 0000000000000000 00000000000003ff 00007fffebb67390
[11017.828437][T122068] GPR28: c000001ea20cfd90 c000200c0c6a4150 0000000000000000 c000200c0c6a4100
[11017.828808][T122068] NIP [c0000000000db564] pnv_eeh_dbgfs_get_inbB+0x14/0x30
[11017.828856][T122068] LR [c00000000056f660] simple_attr_read+0xa0/0x180
[11017.828901][T122068] Call Trace:
[11017.828921][T122068] [c000001ea20cfc10] [c00000000056f630] simple_attr_read+0x70/0x180 (unreliable)
[11017.828983][T122068] [c000001ea20cfcb0] [c00000000064a2e0] full_proxy_read+0x90/0xe0
[11017.829030][T122068] [c000001ea20cfd00] [c00000000051fe0c] __vfs_read+0x3c/0x70
[11017.829043][T122068] [c000001ea20cfd20] [c00000000051feec] vfs_read+0xac/0x170
[11017.829056][T122068] [c000001ea20cfd70] [c00000000052034c] ksys_read+0x7c/0x140
[11017.829116][T122068] [c000001ea20cfdc0] [c000000000038af4] system_call_exception+0x114/0x1e0
[11017.829153][T122068] [c000001ea20cfe20] [c00000000000c8f0] system_call_common+0xf0/0x278
[11017.829215][T122068] Instruction dump:
[11017.829234][T122068] 7c0004ac f9490d10 a14d0c78 38600000 b14d0c7a 4e800020 60000000 7c0802a6
[11017.829264][T122068] 60000000 e9230278 e9290028 7c0004ac <e9290e10> 0c090000 4c00012c 38600000
[11017.829281][T122068] ---[ end trace f68728a0d3053b5f ]---
[11017.928173][T122068]
[11017.928186][T122064] Oops: Kernel access of bad area, sig: 11 [#4]
[11017.928198][T122064] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=256 DEBUG_PAGEALLOC NUMA PowerNV
[11017.928211][T122064] Modules linked in: brd ext4 crc16 mbcache jbd2 loop kvm_hv kvm ip_tables x_tables xfs sd_mod bnx2x ahci libahci tg3 mdio libata libphy firmware_class dm_mirror dm_region_hash dm_log dm_mod
[11017.928263][T122064] CPU: 120 PID: 122064 Comm: read_all Tainted: G D W 5.7.0-rc4-next-20200508+ #4
[11017.928303][T122064] NIP: c0000000000db564 LR: c00000000056f660 CTR: c0000000000db550
[11017.928351][T122064] REGS: c000000978bef980 TRAP: 0380 Tainted: G D W (5.7.0-rc4-next-20200508+)
[11017.928387][T122064] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 22002282 XER: 20040000
[11017.928416][T122064] CFAR: c00000000056f65c IRQMASK: 0
[11017.928416][T122064] GPR00: c00000000056f660 c000000978befc10 c000000001689400 c000201ffc41aa00
[11017.928416][T122064] GPR04: c000000978befc70 0000000000000000 0000000000000000 0000000000000001
[11017.928416][T122064] GPR08: 0000000000000000 ffffffffffe20000 0000000000000000 c0000018930eaa80
[11017.928416][T122064] GPR12: c0000000000db550 c000201fff667c80 0000000000000000 0000000000000000
[11017.928416][T122064] GPR16: 0000000000000002 0000000010040800 000000001001ccd8 000000001001cc80
[11017.928416][T122064] GPR20: 000000001001cc98 000000001001ccc8 000000001001cca8 000000001001cb48
[11017.928416][T122064] GPR24: 0000000000000000 0000000000000000 00000000000003ff 00007fffebb67390
[11017.928416][T122064] GPR28: c000000978befd90 c000200c0c6a2550 0000000000000000 c000200c0c6a2500
[11017.928630][T122064] NIP [c0000000000db564] pnv_eeh_dbgfs_get_inbB+0x14/0x30
[11017.928657][T122064] LR [c00000000056f660] simple_attr_read+0xa0/0x180
[11017.928691][T122064] Call Trace:
[11017.928711][T122064] [c000000978befc10] [c00000000056f630] simple_attr_read+0x70/0x180 (unreliable)
[11017.928749][T122064] [c000000978befcb0] [c00000000064a2e0] full_proxy_read+0x90/0xe0
[11017.928810][T122064] [c000000978befd00] [c00000000051fe0c] __vfs_read+0x3c/0x70
[11017.928845][T122064] [c000000978befd20] [c00000000051feec] vfs_read+0xac/0x170
[11017.928896][T122064] [c000000978befd70] [c00000000052034c] ksys_read+0x7c/0x140
[11017.928946][T122064] [c000000978befdc0] [c000000000038af4] system_call_exception+0x114/0x1e0
[11017.928982][T122064] [c000000978befe20] [c00000000000c8f0] system_call_common+0xf0/0x278
[11017.928994][T122064] Instruction dump:
[11017.929014][T122064] 7c0004ac f9490d10 a14d0c78 38600000 b14d0c7a 4e800020 60000000 7c0802a6
[11017.929068][T122064] 60000000 e9230278 e9290028 7c0004ac <e9290e10> 0c090000 4c00012c 38600000
[11017.929085][T122064] ---[ end trace f68728a0d3053b60 ]---
[11018.018131][T122064]
[11018.018143][T122067] Oops: Kernel access of bad area, sig: 11 [#5]
[11018.018155][T122067] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=256 DEBUG_PAGEALLOC NUMA PowerNV
[11018.018178][T122067] Modules linked in: brd ext4 crc16 mbcache jbd2 loop kvm_hv kvm ip_tables x_tables xfs sd_mod bnx2x ahci libahci tg3 mdio libata libphy firmware_class dm_mirror dm_region_hash dm_log dm_mod
[11018.018231][T122067] CPU: 60 PID: 122067 Comm: read_all Tainted: G D W 5.7.0-rc4-next-20200508+ #4
[11018.018254][T122067] NIP: c0000000000db564 LR: c00000000056f660 CTR: c0000000000db550
[11018.018275][T122067] REGS: c000000e5a06f980 TRAP: 0380 Tainted: G D W (5.7.0-rc4-next-20200508+)
[11018.018307][T122067] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 22002282 XER: 20040000
[11018.018336][T122067] CFAR: c00000000056f65c IRQMASK: 0
[11018.018336][T122067] GPR00: c00000000056f660 c000000e5a06fc10 c000000001689400 c000201ffc41aa00
[11018.018336][T122067] GPR04: c000000e5a06fc70 0000000000000000 0000000000000000 0000000000000001
[11018.018336][T122067] GPR08: 0000000000000000 ffffffffffe20000 0000000000000000 c0000018930ecc80
[11018.018336][T122067] GPR12: c0000000000db550 c000001ffffcf200 0000000000000000 0000000000000000
[11018.018336][T122067] GPR16: 0000000000000002 0000000010040800 000000001001ccd8 000000001001cc80
[11018.018336][T122067] GPR20: 000000001001cc98 000000001001ccc8 000000001001cca8 000000001001cb48
[11018.018336][T122067] GPR24: 0000000000000000 0000000000000000 00000000000003ff 00007fffebb67390
[11018.018336][T122067] GPR28: c000000e5a06fd90 c000000007de7550 0000000000000000 c000000007de7500
[11018.018552][T122067] NIP [c0000000000db564] pnv_eeh_dbgfs_get_inbB+0x14/0x30
[11018.018574][T122067] LR [c00000000056f660] simple_attr_read+0xa0/0x180
[11018.018602][T122067] Call Trace:
[11018.018619][T122067] [c000000e5a06fc10] [c00000000056f630] simple_attr_read+0x70/0x180 (unreliable)
[11018.018652][T122067] [c000000e5a06fcb0] [c00000000064a2e0] full_proxy_read+0x90/0xe0
[11018.018674][T122067] [c000000e5a06fd00] [c00000000051fe0c] __vfs_read+0x3c/0x70
[11018.018686][T122067] [c000000e5a06fd20] [c00000000051feec] vfs_read+0xac/0x170
[11018.018716][T122067] [c000000e5a06fd70] [c00000000052034c] ksys_read+0x7c/0x140
[11018.018747][T122067] [c000000e5a06fdc0] [c000000000038af4] system_call_exception+0x114/0x1e0
[11018.018779][T122067] [c000000e5a06fe20] [c00000000000c8f0] system_call_common+0xf0/0x278
[11018.018808][T122067] Instruction dump:
[11018.018825][T122067] 7c0004ac f9490d10 a14d0c78 38600000 b14d0c7a 4e800020 60000000 7c0802a6
[11018.018850][T122067] 60000000 e9230278 e9290028 7c0004ac <e9290e10> 0c090000 4c00012c 38600000
[11018.018875][T122067] ---[ end trace f68728a0d3053b61 ]---
[11018.108865][T122067]
[11018.108875][T122070] Oops: Kernel access of bad area, sig: 11 [#6]
[11018.108887][T122070] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=256 DEBUG_PAGEALLOC NUMA PowerNV
[11018.108909][T122070] Modules linked in: brd ext4 crc16 mbcache jbd2 loop kvm_hv kvm ip_tables x_tables xfs sd_mod bnx2x ahci libahci tg3 mdio libata libphy firmware_class dm_mirror dm_region_hash dm_log dm_mod
[11018.108949][T122070] CPU: 36 PID: 122070 Comm: read_all Tainted: G D W 5.7.0-rc4-next-20200508+ #4
[11018.108981][T122070] NIP: c0000000000db564 LR: c00000000056f660 CTR: c0000000000db550
[11018.109002][T122070] REGS: c000000a3628f980 TRAP: 0380 Tainted: G D W (5.7.0-rc4-next-20200508+)
[11018.109043][T122070] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 22002282 XER: 20040000
[11018.109077][T122070] CFAR: c00000000056f65c IRQMASK: 0
[11018.109077][T122070] GPR00: c00000000056f660 c000000a3628fc10 c000000001689400 c000201ffc41aa00
[11018.109077][T122070] GPR04: c000000a3628fc70 0000000000000000 0000000000000000 0000000000000001
[11018.109077][T122070] GPR08: 0000000000000000 ffffffffffe20000 0000000000000000 c0000008ee384480
[11018.109077][T122070] GPR12: c0000000000db550 c000001ffffe1e00 0000000000000000 0000000000000000
[11018.109077][T122070] GPR16: 0000000000000002 0000000010040800 000000001001ccd8 000000001001cc80
[11018.109077][T122070] GPR20: 000000001001cc98 000000001001ccc8 000000001001cca8 000000001001cb48
[11018.109077][T122070] GPR24: 0000000000000000 0000000000000000 00000000000003ff 00007fffebb67390
[11018.109077][T122070] GPR28: c000000a3628fd90 c0000002f5243950 0000000000000000 c0000002f5243900
[11018.109256][T122070] NIP [c0000000000db564] pnv_eeh_dbgfs_get_inbB+0x14/0x30
[11018.109277][T122070] LR [c00000000056f660] simple_attr_read+0xa0/0x180
[11018.109296][T122070] Call Trace:
[11018.109314][T122070] [c000000a3628fc10] [c00000000056f630] simple_attr_read+0x70/0x180 (unreliable)
[11018.109346][T122070] [c000000a3628fcb0] [c00000000064a2e0] full_proxy_read+0x90/0xe0
[11018.109377][T122070] [c000000a3628fd00] [c00000000051fe0c] __vfs_read+0x3c/0x70
[11018.109417][T122070] [c000000a3628fd20] [c00000000051feec] vfs_read+0xac/0x170
[11018.109447][T122070] [c000000a3628fd70] [c00000000052034c] ksys_read+0x7c/0x140
[11018.109478][T122070] [c000000a3628fdc0] [c000000000038af4] system_call_exception+0x114/0x1e0
[11018.109510][T122070] [c000000a3628fe20] [c00000000000c8f0] system_call_common+0xf0/0x278
[11018.109548][T122070] Instruction dump:
[11018.109565][T122070] 7c0004ac f9490d10 a14d0c78 38600000 b14d0c7a 4e800020 60000000 7c0802a6
[11018.109599][T122070] 60000000 e9230278 e9290028 7c0004ac <e9290e10> 0c090000 4c00012c 38600000
[11018.109628][T122070] ---[ end trace f68728a0d3053b62 ]---
[11018.238625][T122070]
[11018.238635][T122069] Oops: Kernel access of bad area, sig: 11 [#7]
[11018.238646][T122069] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=256 DEBUG_PAGEALLOC NUMA PowerNV
[11018.238668][T122069] Modules linked in: brd ext4 crc16 mbcache jbd2 loop kvm_hv kvm ip_tables x_tables xfs sd_mod bnx2x ahci libahci tg3 mdio libata libphy firmware_class dm_mirror dm_region_hash dm_log dm_mod
[11018.238708][T122069] CPU: 48 PID: 122069 Comm: read_all Tainted: G D W 5.7.0-rc4-next-20200508+ #4
[11018.238732][T122069] NIP: c0000000000db564 LR: c00000000056f660 CTR: c0000000000db550
[11018.238761][T122069] REGS: c000001bf2e8f980 TRAP: 0380 Tainted: G D W (5.7.0-rc4-next-20200508+)
[11018.238793][T122069] MSR: 9000000000009033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 22002282 XER: 20040000
[11018.238827][T122069] CFAR: c00000000056f65c IRQMASK: 0
[11018.238827][T122069] GPR00: c00000000056f660 c000001bf2e8fc10 c000000001689400 c000201ffc41aa00
[11018.238827][T122069] GPR04: c000001bf2e8fc70 0000000000000000 000000001ab703be ffffffff00018a2f
[11018.238827][T122069] GPR08: 000000006c4a22da ffffffffffe20000 0000000000000000 0000000000000002
[11018.238827][T122069] GPR12: c0000000000db550 c000001ffffd8800 0000000000000000 0000000000000000
[11018.238827][T122069] GPR16: 0000000000000002 0000000010040800 000000001001ccd8 000000001001cc80
[11018.238827][T122069] GPR20: 000000001001cc98 000000001001ccc8 000000001001cca8 000000001001cb48
[11018.238827][T122069] GPR24: 0000000000000000 0000000000000000 00000000000003ff 00007fffebb67390
[11018.238827][T122069] GPR28: c000001bf2e8fd90 c0000015bff0c950 0000000000000000 c0000015bff0c900
[11018.239055][T122069] NIP [c0000000000db564] pnv_eeh_dbgfs_get_inbB+0x14/0x30
[11018.239086][T122069] LR [c00000000056f660] simple_attr_read+0xa0/0x180
[11018.239105][T122069] Call Trace:
[11018.239122][T122069] [c000001bf2e8fc10] [c00000000056f630] simple_attr_read+0x70/0x180 (unreliable)
[11018.239155][T122069] [c000001bf2e8fcb0] [c00000000064a2e0] full_proxy_read+0x90/0xe0
[11018.239186][T122069] [c000001bf2e8fd00] [c00000000051fe0c] __vfs_read+0x3c/0x70
[11018.239207][T122069] [c000001bf2e8fd20] [c00000000051feec] vfs_read+0xac/0x170
[11018.239228][T122069] [c000001bf2e8fd70] [c00000000052034c] ksys_read+0x7c/0x140
[11018.239240][T122069] [c000001bf2e8fdc0] [c000000000038af4] system_call_exception+0x114/0x1e0
[11018.239272][T122069] [c000001bf2e8fe20] [c00000000000c8f0] system_call_common+0xf0/0x278
[11018.239292][T122069] Instruction dump:
[11018.239309][T122069] 7c0004ac f9490d10 a14d0c78 38600000 b14d0c7a 4e800020 60000000 7c0802a6
[11018.239342][T122069] 60000000 e9230278 e9290028 7c0004ac <e9290e10> 0c090000 4c00012c 38600000
[11018.239377][T122069] ---[ end trace f68728a0d3053b63 ]---
[11018.738011][T122072] Kernel panic - not syncing: Fatal exception
[11020.409414]
>
> [ 23.080069][ T1] ------------[ cut here ]------------
> [ 23.080089][ T1] Debug warning: early ioremap leak of 10 areas detected.
> [ 23.080089][ T1] please boot with early_ioremap_debug and report the dmesg.
> [ 23.080157][ T1] WARNING: CPU: 4 PID: 1 at mm/early_ioremap.c:99 check_early_ioremap_leak+0xd4/0x108
> [ 23.080171][ T1] Modules linked in:
> [ 23.080192][ T1] CPU: 4 PID: 1 Comm: swapper/0 Not tainted 5.7.0-rc4-next-20200508+ #4
> [ 23.080214][ T1] NIP: c00000000103f2d8 LR: c00000000103f2d4 CTR: 0000000000000000
> [ 23.080226][ T1] REGS: c00000003df0f860 TRAP: 0700 Not tainted (5.7.0-rc4-next-20200508+)
> [ 23.080259][ T1] MSR: 9000000000029033 <SF,HV,EE,ME,IR,DR,RI,LE> CR: 48000222 XER: 20040000
> [ 23.080296][ T1] CFAR: c00000000010d5a8 IRQMASK: 0
> [ 23.080296][ T1] GPR00: c00000000103f2d4 c00000003df0faf0 c000000001689400 0000000000000072
> [ 23.080296][ T1] GPR04: 0000000000000006 0000000000000000 c00000003df0f7e4 0000000000000004
> [ 23.080296][ T1] GPR08: 0000001ffbb60000 0000000000000000 c00000003dee6680 0000000000000002
> [ 23.080296][ T1] GPR12: 0000000000000000 c000001fffffae00 c000000001057860 c0000000010578b0
> [ 23.080296][ T1] GPR16: c000000001002d38 c0000000014f0660 c0000000014f0680 c0000000014f06a0
> [ 23.080296][ T1] GPR20: c0000000014f06c0 c0000000014f06e0 c0000000014f0700 c0000000014f0720
> [ 23.080296][ T1] GPR24: c000000000c4bc30 c000000486b82000 c0000000015a0fe0 c0000000015a0fc0
> [ 23.080296][ T1] GPR28: 0000000000000010 0000000000000010 c000000001061e30 000000000000000a
> [ 23.080507][ T1] NIP [c00000000103f2d8] check_early_ioremap_leak+0xd4/0x108
> [ 23.080530][ T1] LR [c00000000103f2d4] check_early_ioremap_leak+0xd0/0x108
> [ 23.080552][ T1] Call Trace:
> [ 23.080571][ T1] [c00000003df0faf0] [c00000000103f2d4] check_early_ioremap_leak+0xd0/0x108 (unreliable)
> [ 23.080607][ T1] [c00000003df0fb80] [c00000000001130c] do_one_initcall+0xcc/0x660
> [ 23.080648][ T1] [c00000003df0fc80] [c000000001004c18] kernel_init_freeable+0x480/0x568
> [ 23.080681][ T1] [c00000003df0fdb0] [c000000000012180] kernel_init+0x24/0x194
> [ 23.080713][ T1] [c00000003df0fe20] [c00000000000cb28] ret_from_kernel_thread+0x5c/0x74
>
> This is from the early_ioremap_debug dmesg.
>
> [ 0.000000][ T0] ------------[ cut here ]------------
> [ 0.000000][ T0] __early_ioremap(0x000600c3c0010000, 00010000) [0] => 00000000 + ffffffffffbe0000
> [ 0.000000][ T0] WARNING: CPU: 0 PID: 0 at mm/early_ioremap.c:162 __early_ioremap+0x2d8/0x408
> [ 0.000000][ T0] Modules linked in:
> [ 0.000000][ T0] CPU: 0 PID: 0 Comm: swapper Not tainted 5.7.0-rc4-next-20200508+ #4
> [ 0.000000][ T0] NIP: c00000000103f5e4 LR: c00000000103f5e0 CTR: c0000000001e77f0
> [ 0.000000][ T0] REGS: c00000000168f980 TRAP: 0700 Not tainted (5.7.0-rc4-next-20200508+)
> [ 0.000000][ T0] MSR: 9000000000021033 <SF,HV,ME,IR,DR,RI,LE> CR: 28000248 XER: 20040000
> [ 0.000000][ T0] CFAR: c00000000010d5a8 IRQMASK: 1
> [ 0.000000][ T0] GPR00: c00000000103f5e0 c00000000168fc10 c000000001689400 0000000000000050
> [ 0.000000][ T0] GPR04: c00000000152f6f8 0000000000000000 c00000000168f904 0000000000000000
> [ 0.000000][ T0] GPR08: 0000000000000000 0000000000000000 c00000000162f600 0000000000000002
> [ 0.000000][ T0] GPR12: c0000000001e77f0 c000000005b30000 0000000000000000 0000000000000000
> [ 0.000000][ T0] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000001000
> [ 0.000000][ T0] GPR20: 0000000000000000 80000000000001ae 0000000000000000 0000000000000000
> [ 0.000000][ T0] GPR24: 0000000000010000 c000000001061da8 0000000000000008 0000000000000008
> [ 0.000000][ T0] GPR28: 0000000000000000 c000000001061db0 0000000000000000 c000000001061eb8
> [ 0.000000][ T0] NIP [c00000000103f5e4] __early_ioremap+0x2d8/0x408
> [ 0.000000][ T0] LR [c00000000103f5e0] __early_ioremap+0x2d4/0x408
> [ 0.000000][ T0] Call Trace:
> [ 0.000000][ T0] [c00000000168fc10] [c00000000103f5e0] __early_ioremap+0x2d4/0x408 (unreliable)
> [ 0.000000][ T0] [c00000000168fcf0] [c00000000101d010] pnv_pci_init_ioda_phb+0x420/0xdfc
> [ 0.000000][ T0] [c00000000168fe10] [c00000000101c9b8] pnv_pci_init+0x12c/0x264
> [ 0.000000][ T0] [c00000000168fe40] [c000000001016c40] pnv_setup_arch+0x2e4/0x330
> [ 0.000000][ T0] [c00000000168fe80] [c000000001009dd0] setup_arch+0x3a0/0x3ec
> [ 0.000000][ T0] [c00000000168fef0] [c000000001003ed0] start_kernel+0xb0/0x978
> [ 0.000000][ T0] [c00000000168ff90] [c00000000000c790] start_here_common+0x1c/0x8c
> [ 0.000000][ T0] Instruction dump:
> [ 0.000000][ T0] 7d39ba14 3c82ff3c 3c62ff54 7f06c378 7f88e378 7fc7f378 38a10068 e9290110
> [ 0.000000][ T0] 38849e90 3863e8f0 4b0cdf65 60000000 <0fe00000> 2bbe000f 409d0018 3c62fff1
> [ 0.000000][ T0] irq event stamp: 0
> [ 0.000000][ T0] hardirqs last enabled at (0): [<0000000000000000>] 0x0
> [ 0.000000][ T0] hardirqs last disabled at (0): [<0000000000000000>] 0x0
> [ 0.000000][ T0] softirqs last enabled at (0): [<0000000000000000>] 0x0
> [ 0.000000][ T0] softirqs last disabled at (0): [<0000000000000000>] 0x0
>
^ permalink raw reply
* Re: [PATCH v4 02/14] arm: add support for folded p4d page tables
From: Mike Rapoport @ 2020-05-08 17:42 UTC (permalink / raw)
To: Marek Szyprowski
Cc: Rich Felker, linux-ia64, Geert Uytterhoeven, Fenghua Yu, linux-mm,
Paul Mackerras, Will Deacon, kvmarm, Jonas Bonn, Brian Cain,
linux-hexagon, linux-sh, Russell King, Ley Foon Tan,
Catalin Marinas, uclinux-h8-devel, linux-arch, Arnd Bergmann,
Bartlomiej Zolnierkiewicz, Łukasz Stelmach, kvm-ppc,
Stefan Kristiansson, openrisc, Stafford Horne, Guan Xuetao,
linux-arm-kernel, Tony Luck, Yoshinori Sato, linux-kernel,
Marc Zyngier, nios2-dev, Andrew Morton, linuxppc-dev,
Mike Rapoport
In-Reply-To: <98229ab1-fbf8-0a89-c5d6-270c828799e7@samsung.com>
On Fri, May 08, 2020 at 08:53:27AM +0200, Marek Szyprowski wrote:
> Hi Mike,
>
> On 07.05.2020 18:11, Mike Rapoport wrote:
> > On Thu, May 07, 2020 at 02:16:56PM +0200, Marek Szyprowski wrote:
> >> On 14.04.2020 17:34, Mike Rapoport wrote:
> >>> From: Mike Rapoport <rppt@linux.ibm.com>
> >>>
> >>> Implement primitives necessary for the 4th level folding, add walks of p4d
> >>> level where appropriate, and remove __ARCH_USE_5LEVEL_HACK.
> >>>
> >>> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
> >> Today I've noticed that kexec is broken on ARM 32bit. Bisecting between
> >> current linux-next and v5.7-rc1 pointed to this commit. I've tested this
> >> on Odroid XU4 and Raspberry Pi4 boards. Here is the relevant log:
> >>
> >> # kexec --kexec-syscall -l zImage --append "$(cat /proc/cmdline)"
> >> memory_range[0]:0x40000000..0xbe9fffff
> >> memory_range[0]:0x40000000..0xbe9fffff
> >> # kexec -e
> >> kexec_core: Starting new kernel
> >> 8<--- cut here ---
> >> Unable to handle kernel paging request at virtual address c010f1f4
> >> pgd = c6817793
> >> [c010f1f4] *pgd=4000041e(bad)
> >> Internal error: Oops: 80d [#1] PREEMPT ARM
> >> Modules linked in:
> >> CPU: 0 PID: 1329 Comm: kexec Tainted: G W
> >> 5.7.0-rc3-00127-g6cba81ed0f62 #611
> >> Hardware name: Samsung Exynos (Flattened Device Tree)
> >> PC is at machine_kexec+0x40/0xfc
> > Any chance you have the debug info in this kernel?
> > scripts/faddr2line would come handy here.
>
> # ./scripts/faddr2line --list vmlinux machine_kexec+0x40
> machine_kexec+0x40/0xf8:
>
> machine_kexec at arch/arm/kernel/machine_kexec.c:182
> 177 reboot_code_buffer =
> page_address(image->control_code_page);
> 178
> 179 /* Prepare parameters for reboot_code_buffer*/
> 180 set_kernel_text_rw();
> 181 kexec_start_address = image->start;
> >182< kexec_indirection_page = page_list;
> 183 kexec_mach_type = machine_arch_type;
> 184 kexec_boot_atags = image->arch.kernel_r2;
> 185
> 186 /* copy our kernel relocation code to the control code
> page */
> 187 reboot_entry = fncpy(reboot_code_buffer,
Can you please try the patch below:
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 963b5284d284..f86b3d17928e 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -571,7 +571,7 @@ static inline void section_update(unsigned long addr, pmdval_t mask,
{
pmd_t *pmd;
- pmd = pmd_off_k(addr);
+ pmd = pmd_offset(pud_offset(p4d_offset(pgd_offset(mm, addr), addr), addr), addr);
#ifdef CONFIG_ARM_LPAE
pmd[0] = __pmd((pmd_val(pmd[0]) & mask) | prot);
> > ...
>
> Best regards
> --
> Marek Szyprowski, PhD
> Samsung R&D Institute Poland
>
--
Sincerely yours,
Mike.
^ permalink raw reply related
* [PATCH 0/2] selftests: vm: pkeys: Some powerpc fixes
From: Sandipan Das @ 2020-05-08 17:49 UTC (permalink / raw)
To: akpm
Cc: fweimer, aneesh.kumar, linuxram, linux-mm, linux-kselftest,
linuxppc-dev, bauerman
Some fixes for the powerpc bits w.r.t to the way the pkey
access rights are defined and how the permission register
is updated.
Sandipan Das (2):
selftests: vm: pkeys: Fix powerpc access right definitions
selftests: vm: pkeys: Fix powerpc access right updates
tools/testing/selftests/vm/pkey-powerpc.h | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
--
2.17.1
^ permalink raw reply
* [PATCH 1/2] selftests: vm: pkeys: Fix powerpc access right definitions
From: Sandipan Das @ 2020-05-08 17:49 UTC (permalink / raw)
To: akpm
Cc: fweimer, aneesh.kumar, linuxram, linux-mm, linux-kselftest,
linuxppc-dev, bauerman
In-Reply-To: <cover.1588959697.git.sandipan@linux.ibm.com>
For powerpc, PKEY_DISABLE_WRITE and PKEY_DISABLE_ACCESS are
redefined only if the system headers already define them.
Otherwise, the test fails to compile due to their absence.
This makes sure that they are always defined irrespective of
them being present in the system headers.
Fixes: 130f573c2a79 ("selftests/vm/pkeys: introduce powerpc support")
Reported-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
---
tools/testing/selftests/vm/pkey-powerpc.h | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/tools/testing/selftests/vm/pkey-powerpc.h b/tools/testing/selftests/vm/pkey-powerpc.h
index 3a761e51a587..eb5077de8f1e 100644
--- a/tools/testing/selftests/vm/pkey-powerpc.h
+++ b/tools/testing/selftests/vm/pkey-powerpc.h
@@ -16,15 +16,11 @@
#define fpregs fp_regs
#define si_pkey_offset 0x20
-#ifdef PKEY_DISABLE_ACCESS
#undef PKEY_DISABLE_ACCESS
-# define PKEY_DISABLE_ACCESS 0x3 /* disable read and write */
-#endif
+#define PKEY_DISABLE_ACCESS 0x3 /* disable read and write */
-#ifdef PKEY_DISABLE_WRITE
#undef PKEY_DISABLE_WRITE
-# define PKEY_DISABLE_WRITE 0x2
-#endif
+#define PKEY_DISABLE_WRITE 0x2
#define NR_PKEYS 32
#define NR_RESERVED_PKEYS_4K 27 /* pkey-0, pkey-1, exec-only-pkey
--
2.17.1
^ permalink raw reply related
* [PATCH 2/2] selftests: vm: pkeys: Fix powerpc access right updates
From: Sandipan Das @ 2020-05-08 17:49 UTC (permalink / raw)
To: akpm
Cc: fweimer, aneesh.kumar, linuxram, linux-mm, linux-kselftest,
linuxppc-dev, bauerman
In-Reply-To: <cover.1588959697.git.sandipan@linux.ibm.com>
The Power ISA mandates that all writes to the Authority
Mask Register (AMR) must always be preceded as well as
succeeded by a context-synchronizing instruction. This
applies to both the privileged and unprivileged variants
of the Move To AMR instruction.
Fixes: 130f573c2a79 ("selftests/vm/pkeys: introduce powerpc support")
Reported-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Suggested-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
---
tools/testing/selftests/vm/pkey-powerpc.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/vm/pkey-powerpc.h b/tools/testing/selftests/vm/pkey-powerpc.h
index eb5077de8f1e..1ebb586b2fbc 100644
--- a/tools/testing/selftests/vm/pkey-powerpc.h
+++ b/tools/testing/selftests/vm/pkey-powerpc.h
@@ -55,7 +55,8 @@ static inline void __write_pkey_reg(u64 pkey_reg)
dprintf4("%s() changing %016llx to %016llx\n",
__func__, __read_pkey_reg(), pkey_reg);
- asm volatile("mtspr 0xd, %0" : : "r" ((unsigned long)(amr)) : "memory");
+ asm volatile("isync; mtspr 0xd, %0; isync"
+ : : "r" ((unsigned long)(amr)) : "memory");
dprintf4("%s() pkey register after changing %016llx to %016llx\n",
__func__, __read_pkey_reg(), pkey_reg);
--
2.17.1
^ permalink raw reply related
* Re: [PATCH 2/2] selftests: vm: pkeys: Fix powerpc access right updates
From: Florian Weimer @ 2020-05-08 18:01 UTC (permalink / raw)
To: Sandipan Das
Cc: aneesh.kumar, linuxram, linux-mm, linux-kselftest, akpm,
linuxppc-dev, bauerman
In-Reply-To: <5f65cf37be993760de8112a88da194e3ccbb2bf8.1588959697.git.sandipan@linux.ibm.com>
* Sandipan Das:
> The Power ISA mandates that all writes to the Authority
> Mask Register (AMR) must always be preceded as well as
> succeeded by a context-synchronizing instruction. This
> applies to both the privileged and unprivileged variants
> of the Move To AMR instruction.
Ugh. Do you have a reference for that?
We need to fix this in glibc.
Thanks,
Florian
^ permalink raw reply
* Re: remove a few uses of ->queuedata
From: Dan Williams @ 2020-05-08 18:04 UTC (permalink / raw)
To: Christoph Hellwig
Cc: Jens Axboe, linux-xtensa, linux-raid, Sergey Senozhatsky,
linux-nvdimm, Geoff Levand, Linux Kernel Mailing List, Jim Paris,
linux-block, Minchan Kim, linux-m68k, Philip Kelleher,
linux-bcache, linuxppc-dev, Joshua Morris, Nitin Gupta, drbd-dev
In-Reply-To: <20200508161517.252308-1-hch@lst.de>
On Fri, May 8, 2020 at 9:16 AM Christoph Hellwig <hch@lst.de> wrote:
>
> Hi all,
>
> various bio based drivers use queue->queuedata despite already having
> set up disk->private_data, which can be used just as easily. This
> series cleans them up to only use a single private data pointer.
...but isn't the queue pretty much guaranteed to be cache hot and the
gendisk cache cold? I'm not immediately seeing what else needs the
gendisk in the I/O path. Is there another motivation I'm missing?
^ permalink raw reply
* Re: [PATCH 2/2] selftests: vm: pkeys: Fix powerpc access right updates
From: Sandipan Das @ 2020-05-08 19:54 UTC (permalink / raw)
To: Florian Weimer
Cc: aneesh.kumar, linuxram, linux-mm, linux-kselftest, akpm,
linuxppc-dev, bauerman
In-Reply-To: <87blmymhkx.fsf@oldenburg2.str.redhat.com>
Hi Florian,
On 08/05/20 11:31 pm, Florian Weimer wrote:
> * Sandipan Das:
>
>> The Power ISA mandates that all writes to the Authority
>> Mask Register (AMR) must always be preceded as well as
>> succeeded by a context-synchronizing instruction. This
>> applies to both the privileged and unprivileged variants
>> of the Move To AMR instruction.
>
> Ugh. Do you have a reference for that?
>
> We need to fix this in glibc.
>
This is from Table 6 of Chapter 11 in page 1134 of Power
ISA 3.0B. The document can be found here:
https://ibm.ent.box.com/s/1hzcwkwf8rbju5h9iyf44wm94amnlcrv
- Sandipan
^ permalink raw reply
* Re: [PATCH 2/2] selftests: vm: pkeys: Fix powerpc access right updates
From: Florian Weimer @ 2020-05-08 20:03 UTC (permalink / raw)
To: Sandipan Das
Cc: aneesh.kumar, linuxram, linux-mm, linux-kselftest, akpm,
linuxppc-dev, bauerman
In-Reply-To: <a40c364d-e204-1d63-c211-7cdfdccb32e0@linux.ibm.com>
* Sandipan Das:
> Hi Florian,
>
> On 08/05/20 11:31 pm, Florian Weimer wrote:
>> * Sandipan Das:
>>
>>> The Power ISA mandates that all writes to the Authority
>>> Mask Register (AMR) must always be preceded as well as
>>> succeeded by a context-synchronizing instruction. This
>>> applies to both the privileged and unprivileged variants
>>> of the Move To AMR instruction.
>>
>> Ugh. Do you have a reference for that?
>>
>> We need to fix this in glibc.
>>
>
> This is from Table 6 of Chapter 11 in page 1134 of Power
> ISA 3.0B. The document can be found here:
> https://ibm.ent.box.com/s/1hzcwkwf8rbju5h9iyf44wm94amnlcrv
Thanks a lot! I filed:
<https://sourceware.org/bugzilla/show_bug.cgi?id=25954>
Florian
^ permalink raw reply
* Re: [PATCH 4/5] powerpc/mpc85xx: Add Cyrus HDD LED
From: Scott Wood @ 2020-05-08 20:37 UTC (permalink / raw)
To: Darren Stevens, linuxppc-dev; +Cc: chzigotzky
In-Reply-To: <20200507221550.6b02a290@Cyrus.lan>
On Thu, 2020-05-07 at 22:15 +0100, Darren Stevens wrote:
> The Cyrus board has its HDD LED connected to a GPIO pin. Add a device
> tree entry for this.
>
> Signed-off-By: Darren Stevens <darren@stevens-zone.net>
>
> ---
> arch/powerpc/boot/dts/fsl/cyrus_p5020.dts | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/arch/powerpc/boot/dts/fsl/cyrus_p5020.dts
> b/arch/powerpc/boot/dts/fsl/cyrus_p5020.dts index f0548fe..74c100f
> 100644 --- a/arch/powerpc/boot/dts/fsl/cyrus_p5020.dts
> +++ b/arch/powerpc/boot/dts/fsl/cyrus_p5020.dts
> @@ -83,6 +83,16 @@
> gpios = <&gpio0 2 1>;
> };
>
> + leds {
> + compatible = "gpio-leds";
> +
> + hdd {
> + label = "Disk Activity";
> + gpios = <&gpio0 5 0>;
> + linux,default-trigger =
> "disk-activity";
> + };
Documentation/devicetree/bindings/leds/common.yaml says that label is
deprecated, and to "use 'function' and 'color' properties instead".
Also, please CC devicetree@vger.kernel.org on these patches.
-Scott
^ permalink raw reply
* Re: [PATCH 5/5] powerpc/mpc85xx: Add Cyrus P5040 device tree source
From: Scott Wood @ 2020-05-08 20:42 UTC (permalink / raw)
To: Darren Stevens, linuxppc-dev; +Cc: chzigotzky
In-Reply-To: <20200507223025.0164b95b@Cyrus.lan>
On Thu, 2020-05-07 at 22:30 +0100, Darren Stevens wrote:
>
> +/include/ "p5040si-pre.dtsi"
> +
> +/ {
> + model = "varisys,CYRUS5040";
> + compatible = "varisys,CYRUS";
Is this board 100% compatible with the Cyrus P5020 board, down to every last
quirk, except for the SoC plugged into it? If not, they shouldn't have the
same compatible. If they are, then couldn't everything in this file but the
SoC include be moved to a dtsi shared with cyrus_p5020.dts?
> + #address-cells = <2>;
> + #size-cells = <2>;
> + interrupt-parent = <&mpic>;
> +
> + aliases{
> + ethernet0 = &enet4;
> + ethernet1 = &enet10;
> + };
Space after "aliases"
-Scott
^ permalink raw reply
* Re: [PATCH v8 5/5] powerpc/hv-24x7: Update post_mobility_fixup() to handle migration
From: kbuild test robot @ 2020-05-08 22:10 UTC (permalink / raw)
To: Kajol Jain, acme, linuxppc-dev, mpe, suka
Cc: ravi.bangoria, maddy, kbuild-all, peterz, gregkh,
alexander.shishkin, mpetlan, yao.jin, ak, jmario
In-Reply-To: <20200506110737.14904-6-kjain@linux.ibm.com>
[-- Attachment #1: Type: text/plain, Size: 2110 bytes --]
Hi Kajol,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on powerpc/next]
[also build test ERROR on linus/master v5.7-rc4 next-20200508]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/Kajol-Jain/powerpc-hv-24x7-Expose-chip-sockets-info-to-add-json-file-metric-support-for-the-hv_24x7-socket-chip-level-events/20200507-032548
base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-randconfig-r013-20200508 (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 9.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=powerpc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
>> arch/powerpc/platforms/pseries/mobility.c:48:20: error: static declaration of 'read_sys_info_pseries' follows non-static declaration
48 | static inline void read_sys_info_pseries(void) { }
| ^~~~~~~~~~~~~~~~~~~~~
In file included from arch/powerpc/platforms/pseries/mobility.c:22:
arch/powerpc/include/asm/rtas.h:485:13: note: previous declaration of 'read_sys_info_pseries' was here
485 | extern void read_sys_info_pseries(void);
| ^~~~~~~~~~~~~~~~~~~~~
vim +/read_sys_info_pseries +48 arch/powerpc/platforms/pseries/mobility.c
44
45 #ifdef CONFIG_HV_PERF_CTRS
46 void read_sys_info_pseries(void);
47 #else
> 48 static inline void read_sys_info_pseries(void) { }
49 #endif
50
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 32632 bytes --]
^ permalink raw reply
* Re: [PATCH V3 2/3] mm/hugetlb: Define a generic fallback for is_hugepage_only_range()
From: Mike Kravetz @ 2020-05-08 22:22 UTC (permalink / raw)
To: Anshuman Khandual, linux-mm, akpm
Cc: Rich Felker, linux-ia64, linux-sh, Catalin Marinas,
Heiko Carstens, linux-kernel, James E.J. Bottomley,
Paul Mackerras, H. Peter Anvin, sparclinux, linux-riscv,
Will Deacon, linux-arch, linux-s390, Yoshinori Sato, Helge Deller,
x86, Russell King, Christian Borntraeger, Ingo Molnar, Fenghua Yu,
Vasily Gorbik, Thomas Bogendoerfer, Borislav Petkov,
Paul Walmsley, Thomas Gleixner, linux-arm-kernel, Tony Luck,
linux-parisc, linux-mips, Palmer Dabbelt, linuxppc-dev,
David S. Miller
In-Reply-To: <1588907271-11920-3-git-send-email-anshuman.khandual@arm.com>
On 5/7/20 8:07 PM, Anshuman Khandual wrote:
> There are multiple similar definitions for is_hugepage_only_range() on
> various platforms. Lets just add it's generic fallback definition for
> platforms that do not override. This help reduce code duplication.
>
> Cc: Russell King <linux@armlinux.org.uk>
> Cc: Catalin Marinas <catalin.marinas@arm.com>
> Cc: Will Deacon <will@kernel.org>
> Cc: Tony Luck <tony.luck@intel.com>
> Cc: Fenghua Yu <fenghua.yu@intel.com>
> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
> Cc: Helge Deller <deller@gmx.de>
> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> Cc: Paul Mackerras <paulus@samba.org>
> Cc: Michael Ellerman <mpe@ellerman.id.au>
> Cc: Paul Walmsley <paul.walmsley@sifive.com>
> Cc: Palmer Dabbelt <palmer@dabbelt.com>
> Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
> Cc: Vasily Gorbik <gor@linux.ibm.com>
> Cc: Christian Borntraeger <borntraeger@de.ibm.com>
> Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
> Cc: Rich Felker <dalias@libc.org>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: Borislav Petkov <bp@alien8.de>
> Cc: "H. Peter Anvin" <hpa@zytor.com>
> Cc: Mike Kravetz <mike.kravetz@oracle.com>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Cc: x86@kernel.org
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-ia64@vger.kernel.org
> Cc: linux-mips@vger.kernel.org
> Cc: linux-parisc@vger.kernel.org
> Cc: linuxppc-dev@lists.ozlabs.org
> Cc: linux-riscv@lists.infradead.org
> Cc: linux-s390@vger.kernel.org
> Cc: linux-sh@vger.kernel.org
> Cc: sparclinux@vger.kernel.org
> Cc: linux-mm@kvack.org
> Cc: linux-arch@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
> ---
> arch/arm/include/asm/hugetlb.h | 6 ------
> arch/arm64/include/asm/hugetlb.h | 6 ------
> arch/ia64/include/asm/hugetlb.h | 1 +
> arch/mips/include/asm/hugetlb.h | 7 -------
> arch/parisc/include/asm/hugetlb.h | 6 ------
> arch/powerpc/include/asm/hugetlb.h | 1 +
> arch/riscv/include/asm/hugetlb.h | 6 ------
> arch/s390/include/asm/hugetlb.h | 7 -------
> arch/sh/include/asm/hugetlb.h | 6 ------
> arch/sparc/include/asm/hugetlb.h | 6 ------
> arch/x86/include/asm/hugetlb.h | 6 ------
> include/linux/hugetlb.h | 9 +++++++++
> 12 files changed, 11 insertions(+), 56 deletions(-)
>
<snip>
> diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
> index 43a1cef8f0f1..c01c0c6f7fd4 100644
> --- a/include/linux/hugetlb.h
> +++ b/include/linux/hugetlb.h
> @@ -591,6 +591,15 @@ static inline unsigned int blocks_per_huge_page(struct hstate *h)
>
> #include <asm/hugetlb.h>
>
> +#ifndef is_hugepage_only_range
> +static inline int is_hugepage_only_range(struct mm_struct *mm,
> + unsigned long addr, unsigned long len)
> +{
> + return 0;
> +}
> +#define is_hugepage_only_range is_hugepage_only_range
> +#endif
> +
> #ifndef arch_make_huge_pte
> static inline pte_t arch_make_huge_pte(pte_t entry, struct vm_area_struct *vma,
> struct page *page, int writable)
>
Did you try building without CONFIG_HUGETLB_PAGE defined? I'm guessing
that you need a stub for is_hugepage_only_range(). Or, perhaps add this
to asm-generic/hugetlb.h?
--
Mike Kravetz
^ permalink raw reply
* [PATCH] powerpc/kvm: silence kmemleak false positives
From: Qian Cai @ 2020-05-09 1:55 UTC (permalink / raw)
To: mpe; +Cc: linux-kernel, kvm-ppc, Qian Cai, catalin.marinas, linuxppc-dev
kvmppc_pmd_alloc() and kvmppc_pte_alloc() allocate some memory but then
pud_populate() and pmd_populate() will use __pa() to reference the newly
allocated memory. The same is in xive_native_provision_pages().
Since kmemleak is unable to track the physical memory resulting in false
positives, silence those by using kmemleak_ignore().
unreferenced object 0xc000201c382a1000 (size 4096):
comm "qemu-kvm", pid 124828, jiffies 4295733767 (age 341.250s)
hex dump (first 32 bytes):
c0 00 20 09 f4 60 03 87 c0 00 20 10 72 a0 03 87 .. ..`.... .r...
c0 00 20 0e 13 a0 03 87 c0 00 20 1b dc c0 03 87 .. ....... .....
backtrace:
[<000000004cc2790f>] kvmppc_create_pte+0x838/0xd20 [kvm_hv]
kvmppc_pmd_alloc at arch/powerpc/kvm/book3s_64_mmu_radix.c:366
(inlined by) kvmppc_create_pte at arch/powerpc/kvm/book3s_64_mmu_radix.c:590
[<00000000d123c49a>] kvmppc_book3s_instantiate_page+0x2e0/0x8c0 [kvm_hv]
[<00000000bb549087>] kvmppc_book3s_radix_page_fault+0x1b4/0x2b0 [kvm_hv]
[<0000000086dddc0e>] kvmppc_book3s_hv_page_fault+0x214/0x12a0 [kvm_hv]
[<000000005ae9ccc2>] kvmppc_vcpu_run_hv+0xc5c/0x15f0 [kvm_hv]
[<00000000d22162ff>] kvmppc_vcpu_run+0x34/0x48 [kvm]
[<00000000d6953bc4>] kvm_arch_vcpu_ioctl_run+0x314/0x420 [kvm]
[<000000002543dd54>] kvm_vcpu_ioctl+0x33c/0x950 [kvm]
[<0000000048155cd6>] ksys_ioctl+0xd8/0x130
[<0000000041ffeaa7>] sys_ioctl+0x28/0x40
[<000000004afc4310>] system_call_exception+0x114/0x1e0
[<00000000fb70a873>] system_call_common+0xf0/0x278
unreferenced object 0xc0002001f0c03900 (size 256):
comm "qemu-kvm", pid 124830, jiffies 4295735235 (age 326.570s)
hex dump (first 32 bytes):
c0 00 20 10 fa a0 03 87 c0 00 20 10 fa a1 03 87 .. ....... .....
c0 00 20 10 fa a2 03 87 c0 00 20 10 fa a3 03 87 .. ....... .....
backtrace:
[<0000000023f675b8>] kvmppc_create_pte+0x854/0xd20 [kvm_hv]
kvmppc_pte_alloc at arch/powerpc/kvm/book3s_64_mmu_radix.c:356
(inlined by) kvmppc_create_pte at arch/powerpc/kvm/book3s_64_mmu_radix.c:593
[<00000000d123c49a>] kvmppc_book3s_instantiate_page+0x2e0/0x8c0 [kvm_hv]
[<00000000bb549087>] kvmppc_book3s_radix_page_fault+0x1b4/0x2b0 [kvm_hv]
[<0000000086dddc0e>] kvmppc_book3s_hv_page_fault+0x214/0x12a0 [kvm_hv]
[<000000005ae9ccc2>] kvmppc_vcpu_run_hv+0xc5c/0x15f0 [kvm_hv]
[<00000000d22162ff>] kvmppc_vcpu_run+0x34/0x48 [kvm]
[<00000000d6953bc4>] kvm_arch_vcpu_ioctl_run+0x314/0x420 [kvm]
[<000000002543dd54>] kvm_vcpu_ioctl+0x33c/0x950 [kvm]
[<0000000048155cd6>] ksys_ioctl+0xd8/0x130
[<0000000041ffeaa7>] sys_ioctl+0x28/0x40
[<000000004afc4310>] system_call_exception+0x114/0x1e0
[<00000000fb70a873>] system_call_common+0xf0/0x278
unreferenced object 0xc000201b53e90000 (size 65536):
comm "qemu-kvm", pid 124557, jiffies 4295650285 (age 364.370s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<00000000acc2fb77>] xive_native_alloc_vp_block+0x168/0x210
xive_native_provision_pages at arch/powerpc/sysdev/xive/native.c:645
(inlined by) xive_native_alloc_vp_block at arch/powerpc/sysdev/xive/native.c:674
[<000000004d5c7964>] kvmppc_xive_compute_vp_id+0x20c/0x3b0 [kvm]
[<0000000055317cd2>] kvmppc_xive_connect_vcpu+0xa4/0x4a0 [kvm]
[<0000000093dfc014>] kvm_arch_vcpu_ioctl+0x388/0x508 [kvm]
[<00000000d25aea0f>] kvm_vcpu_ioctl+0x15c/0x950 [kvm]
[<0000000048155cd6>] ksys_ioctl+0xd8/0x130
[<0000000041ffeaa7>] sys_ioctl+0x28/0x40
[<000000004afc4310>] system_call_exception+0x114/0x1e0
[<00000000fb70a873>] system_call_common+0xf0/0x278
Signed-off-by: Qian Cai <cai@lca.pw>
---
arch/powerpc/kvm/book3s_64_mmu_radix.c | 16 ++++++++++++++--
arch/powerpc/sysdev/xive/native.c | 4 ++++
2 files changed, 18 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c
index aa12cd4078b3..bc6c1aa3d0e9 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_radix.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c
@@ -353,7 +353,13 @@ static struct kmem_cache *kvm_pmd_cache;
static pte_t *kvmppc_pte_alloc(void)
{
- return kmem_cache_alloc(kvm_pte_cache, GFP_KERNEL);
+ pte_t *pte;
+
+ pte = kmem_cache_alloc(kvm_pte_cache, GFP_KERNEL);
+ /* pmd_populate() will only reference _pa(pte). */
+ kmemleak_ignore(pte);
+
+ return pte;
}
static void kvmppc_pte_free(pte_t *ptep)
@@ -363,7 +369,13 @@ static void kvmppc_pte_free(pte_t *ptep)
static pmd_t *kvmppc_pmd_alloc(void)
{
- return kmem_cache_alloc(kvm_pmd_cache, GFP_KERNEL);
+ pmd_t *pmd;
+
+ pmd = kmem_cache_alloc(kvm_pmd_cache, GFP_KERNEL);
+ /* pud_populate() will only reference _pa(pmd). */
+ kmemleak_ignore(pmd);
+
+ return pmd;
}
static void kvmppc_pmd_free(pmd_t *pmdp)
diff --git a/arch/powerpc/sysdev/xive/native.c b/arch/powerpc/sysdev/xive/native.c
index 5218fdc4b29a..2d19f28967a6 100644
--- a/arch/powerpc/sysdev/xive/native.c
+++ b/arch/powerpc/sysdev/xive/native.c
@@ -18,6 +18,7 @@
#include <linux/delay.h>
#include <linux/cpumask.h>
#include <linux/mm.h>
+#include <linux/kmemleak.h>
#include <asm/machdep.h>
#include <asm/prom.h>
@@ -647,6 +648,9 @@ static bool xive_native_provision_pages(void)
pr_err("Failed to allocate provisioning page\n");
return false;
}
+ /* Kmemleak is unable to track the physical address. */
+ kmemleak_ignore(p);
+
opal_xive_donate_page(chip, __pa(p));
}
return true;
--
2.21.0 (Apple Git-122.2)
^ permalink raw reply related
* [PATCH -next] powerpc/powernv: add NULL check after kzalloc
From: Chen Zhou @ 2020-05-09 2:08 UTC (permalink / raw)
To: mpe, benh, paulus; +Cc: chenzhou10, linuxppc-dev, linux-kernel
Fixes coccicheck warning:
./arch/powerpc/platforms/powernv/opal.c:813:1-5:
alloc with no test, possible model on line 814
Add NULL check after kzalloc.
Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
---
arch/powerpc/platforms/powernv/opal.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 2b3dfd0b6cdd..d95954ad4c0a 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -811,6 +811,10 @@ static int opal_add_one_export(struct kobject *parent, const char *export_name,
goto out;
attr = kzalloc(sizeof(*attr), GFP_KERNEL);
+ if (!attr) {
+ rc = -ENOMEM;
+ goto out;
+ }
name = kstrdup(export_name, GFP_KERNEL);
if (!name) {
rc = -ENOMEM;
--
2.20.1
^ permalink raw reply related
* Re: [PATCH v4 11/16] powerpc/64s: machine check interrupt update NMI accounting
From: kbuild test robot @ 2020-05-09 3:13 UTC (permalink / raw)
To: Nicholas Piggin, linuxppc-dev; +Cc: kbuild-all, Nicholas Piggin
In-Reply-To: <20200508043408.886394-12-npiggin@gmail.com>
[-- Attachment #1: Type: text/plain, Size: 4851 bytes --]
Hi Nicholas,
I love your patch! Yet something to improve:
[auto build test ERROR on powerpc/next]
[also build test ERROR on tip/perf/core v5.7-rc4 next-20200508]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/Nicholas-Piggin/powerpc-machine-check-and-system-reset-fixes/20200509-030554
base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-randconfig-r002-20200509 (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 9.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=powerpc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
In file included from include/linux/kernel.h:15,
from include/asm-generic/bug.h:19,
from arch/powerpc/include/asm/bug.h:109,
from include/linux/bug.h:5,
from arch/powerpc/include/asm/mmu.h:130,
from arch/powerpc/include/asm/paca.h:18,
from arch/powerpc/include/asm/current.h:13,
from include/linux/sched.h:12,
from arch/powerpc/kernel/process.c:14:
arch/powerpc/kernel/process.c: In function 'show_regs':
>> arch/powerpc/kernel/process.c:1425:74: error: 'struct paca_struct' has no member named 'in_nmi'
1425 | pr_cont("IRQMASK: %lx IN_NMI:%d IN_MCE:%d", regs->softe, (int)get_paca()->in_nmi, (int)get_paca()->in_mce);
| ^~
include/linux/printk.h:312:26: note: in definition of macro 'pr_cont'
312 | printk(KERN_CONT fmt, ##__VA_ARGS__)
| ^~~~~~~~~~~
>> arch/powerpc/kernel/process.c:1425:99: error: 'struct paca_struct' has no member named 'in_mce'
1425 | pr_cont("IRQMASK: %lx IN_NMI:%d IN_MCE:%d", regs->softe, (int)get_paca()->in_nmi, (int)get_paca()->in_mce);
| ^~
include/linux/printk.h:312:26: note: in definition of macro 'pr_cont'
312 | printk(KERN_CONT fmt, ##__VA_ARGS__)
| ^~~~~~~~~~~
vim +1425 arch/powerpc/kernel/process.c
1401
1402 void show_regs(struct pt_regs * regs)
1403 {
1404 int i, trap;
1405
1406 show_regs_print_info(KERN_DEFAULT);
1407
1408 printk("NIP: "REG" LR: "REG" CTR: "REG"\n",
1409 regs->nip, regs->link, regs->ctr);
1410 printk("REGS: %px TRAP: %04lx %s (%s)\n",
1411 regs, regs->trap, print_tainted(), init_utsname()->release);
1412 printk("MSR: "REG" ", regs->msr);
1413 print_msr_bits(regs->msr);
1414 pr_cont(" CR: %08lx XER: %08lx\n", regs->ccr, regs->xer);
1415 trap = TRAP(regs);
1416 if ((TRAP(regs) != 0xc00) && cpu_has_feature(CPU_FTR_CFAR))
1417 pr_cont("CFAR: "REG" ", regs->orig_gpr3);
1418 if (trap == 0x200 || trap == 0x300 || trap == 0x600)
1419 #if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
1420 pr_cont("DEAR: "REG" ESR: "REG" ", regs->dar, regs->dsisr);
1421 #else
1422 pr_cont("DAR: "REG" DSISR: %08lx ", regs->dar, regs->dsisr);
1423 #endif
1424 #ifdef CONFIG_PPC64
> 1425 pr_cont("IRQMASK: %lx IN_NMI:%d IN_MCE:%d", regs->softe, (int)get_paca()->in_nmi, (int)get_paca()->in_mce);
1426 #endif
1427 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
1428 if (MSR_TM_ACTIVE(regs->msr))
1429 pr_cont("\nPACATMSCRATCH: %016llx ", get_paca()->tm_scratch);
1430 #endif
1431
1432 for (i = 0; i < 32; i++) {
1433 if ((i % REGS_PER_LINE) == 0)
1434 pr_cont("\nGPR%02d: ", i);
1435 pr_cont(REG " ", regs->gpr[i]);
1436 if (i == LAST_VOLATILE && !FULL_REGS(regs))
1437 break;
1438 }
1439 pr_cont("\n");
1440 #ifdef CONFIG_KALLSYMS
1441 /*
1442 * Lookup NIP late so we have the best change of getting the
1443 * above info out without failing
1444 */
1445 printk("NIP ["REG"] %pS\n", regs->nip, (void *)regs->nip);
1446 printk("LR ["REG"] %pS\n", regs->link, (void *)regs->link);
1447 #endif
1448 show_stack(current, (unsigned long *) regs->gpr[1]);
1449 if (!user_mode(regs))
1450 show_instructions(regs);
1451 }
1452
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 26096 bytes --]
^ permalink raw reply
* Re: remove a few uses of ->queuedata
From: Ming Lei @ 2020-05-08 22:13 UTC (permalink / raw)
To: Christoph Hellwig
Cc: Jens Axboe, linux-xtensa, linux-raid, Sergey Senozhatsky,
linux-nvdimm, Geoff Levand, linux-kernel, Jim Paris, linux-block,
Minchan Kim, linux-m68k, Philip Kelleher, linux-bcache,
linuxppc-dev, Joshua Morris, Nitin Gupta, drbd-dev
In-Reply-To: <20200508161517.252308-1-hch@lst.de>
On Fri, May 08, 2020 at 06:15:02PM +0200, Christoph Hellwig wrote:
> Hi all,
>
> various bio based drivers use queue->queuedata despite already having
> set up disk->private_data, which can be used just as easily. This
> series cleans them up to only use a single private data pointer.
>
> blk-mq based drivers that have code pathes that can't easily get at
> the gendisk are unaffected by this series.
Yeah, before adding disk, there still may be requests queued to LLD
for blk-mq based drivers.
So are there this similar situation for these bio based drivers?
Thanks,
Ming
^ permalink raw reply
* [PATCH RFC 3/4] powerpc/microwatt: Add early debug UART support for Microwatt
From: Paul Mackerras @ 2020-05-09 5:03 UTC (permalink / raw)
To: linuxppc-dev, Benjamin Herrenschmidt, Michael Neuling,
Anton Blanchard
In-Reply-To: <20200509050103.GA1464954@thinks.paulus.ozlabs.org>
Currently microwatt-based SoCs come with a "potato" UART. This
adds udbg support for the potato UART, giving us both an early
debug console, and a runtime console using the hvc-udbg support.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
---
arch/powerpc/Kconfig.debug | 6 ++
arch/powerpc/include/asm/udbg.h | 1 +
arch/powerpc/kernel/udbg.c | 2 +
arch/powerpc/platforms/microwatt/setup.c | 108 +++++++++++++++++++++++
4 files changed, 117 insertions(+)
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
index 0b063830eea8..399abc6d2af7 100644
--- a/arch/powerpc/Kconfig.debug
+++ b/arch/powerpc/Kconfig.debug
@@ -277,6 +277,12 @@ config PPC_EARLY_DEBUG_MEMCONS
This console provides input and output buffers stored within the
kernel BSS and should be safe to select on any system. A debugger
can then be used to read kernel output or send input to the console.
+
+config PPC_EARLY_DEBUG_MICROWATT
+ bool "Microwatt potato UART"
+ help
+ Select this to enable early debugging using the potato UART
+ included in the Microwatt SOC.
endchoice
config PPC_MEMCONS_OUTPUT_SIZE
diff --git a/arch/powerpc/include/asm/udbg.h b/arch/powerpc/include/asm/udbg.h
index 0ea9e70ed78b..2dbd2d3b0591 100644
--- a/arch/powerpc/include/asm/udbg.h
+++ b/arch/powerpc/include/asm/udbg.h
@@ -53,6 +53,7 @@ extern void __init udbg_init_ehv_bc(void);
extern void __init udbg_init_ps3gelic(void);
extern void __init udbg_init_debug_opal_raw(void);
extern void __init udbg_init_debug_opal_hvsi(void);
+extern void __init udbg_init_debug_microwatt(void);
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_UDBG_H */
diff --git a/arch/powerpc/kernel/udbg.c b/arch/powerpc/kernel/udbg.c
index 01595e8cafe7..e614993021c6 100644
--- a/arch/powerpc/kernel/udbg.c
+++ b/arch/powerpc/kernel/udbg.c
@@ -67,6 +67,8 @@ void __init udbg_early_init(void)
udbg_init_debug_opal_raw();
#elif defined(CONFIG_PPC_EARLY_DEBUG_OPAL_HVSI)
udbg_init_debug_opal_hvsi();
+#elif defined(CONFIG_PPC_EARLY_DEBUG_MICROWATT)
+ udbg_init_debug_microwatt();
#endif
#ifdef CONFIG_PPC_EARLY_DEBUG
diff --git a/arch/powerpc/platforms/microwatt/setup.c b/arch/powerpc/platforms/microwatt/setup.c
index 3cfc5955a6fe..a5145adeaae7 100644
--- a/arch/powerpc/platforms/microwatt/setup.c
+++ b/arch/powerpc/platforms/microwatt/setup.c
@@ -10,8 +10,115 @@
#include <linux/init.h>
#include <linux/of.h>
#include <asm/machdep.h>
+#include <asm/udbg.h>
+#include <asm/reg.h>
#include <asm/time.h>
+static u64 potato_uart_base;
+
+#define PROC_FREQ 100000000
+#define UART_FREQ 115200
+#define UART_BASE 0xc0002000
+
+#define POTATO_CONSOLE_TX 0x00
+#define POTATO_CONSOLE_RX 0x08
+#define POTATO_CONSOLE_STATUS 0x10
+#define POTATO_CONSOLE_STATUS_RX_EMPTY 0x01
+#define POTATO_CONSOLE_STATUS_TX_EMPTY 0x02
+#define POTATO_CONSOLE_STATUS_RX_FULL 0x04
+#define POTATO_CONSOLE_STATUS_TX_FULL 0x08
+#define POTATO_CONSOLE_CLOCK_DIV 0x18
+#define POTATO_CONSOLE_IRQ_EN 0x20
+
+static u64 potato_uart_reg_read(int offset)
+{
+ u64 val, msr;
+
+ msr = mfmsr();
+ __asm__ volatile("mtmsrd %3,0; ldcix %0,%1,%2; mtmsrd %4,0"
+ : "=r" (val) : "b" (potato_uart_base), "r" (offset),
+ "r" (msr & ~MSR_DR), "r" (msr));
+
+ return val;
+}
+
+static void potato_uart_reg_write(int offset, u64 val)
+{
+ u64 msr;
+
+ msr = mfmsr();
+ __asm__ volatile("mtmsrd %3,0; stdcix %0,%1,%2; mtmsrd %4,0"
+ : : "r" (val), "b" (potato_uart_base), "r" (offset),
+ "r" (msr & ~MSR_DR), "r" (msr));
+}
+
+static int potato_uart_rx_empty(void)
+{
+ u64 val;
+
+ val = potato_uart_reg_read(POTATO_CONSOLE_STATUS);
+
+ if (val & POTATO_CONSOLE_STATUS_RX_EMPTY)
+ return 1;
+
+ return 0;
+}
+
+static int potato_uart_tx_full(void)
+{
+ u64 val;
+
+ val = potato_uart_reg_read(POTATO_CONSOLE_STATUS);
+
+ if (val & POTATO_CONSOLE_STATUS_TX_FULL)
+ return 1;
+
+ return 0;
+}
+
+static int potato_uart_read(void)
+{
+ while (potato_uart_rx_empty())
+ ;
+ return potato_uart_reg_read(POTATO_CONSOLE_RX);
+}
+
+static int potato_uart_read_poll(void)
+{
+ if (potato_uart_rx_empty())
+ return -1;
+ return potato_uart_reg_read(POTATO_CONSOLE_RX);
+}
+
+static void potato_uart_write(char c)
+{
+ if (c == '\n')
+ potato_uart_write('\r');
+ while (potato_uart_tx_full())
+ ;
+ potato_uart_reg_write(POTATO_CONSOLE_TX, c);
+}
+
+static unsigned long potato_uart_divisor(unsigned long proc_freq, unsigned long uart_freq)
+{
+ return proc_freq / (uart_freq * 16) - 1;
+}
+
+void potato_uart_init(void)
+{
+ potato_uart_base = UART_BASE;
+
+ potato_uart_reg_write(POTATO_CONSOLE_CLOCK_DIV, potato_uart_divisor(PROC_FREQ, UART_FREQ));
+}
+
+void udbg_init_debug_microwatt(void)
+{
+ potato_uart_init();
+ udbg_putc = potato_uart_write;
+ udbg_getc = potato_uart_read;
+ udbg_getc_poll = potato_uart_read_poll;
+}
+
static void __init microwatt_calibrate_decr(void)
{
ppc_tb_freq = 100000000;
@@ -36,5 +143,6 @@ define_machine(microwatt) {
.probe = microwatt_probe,
.setup_arch = microwatt_setup_arch,
.init_IRQ = microwatt_init_IRQ,
+ .progress = udbg_progress,
.calibrate_decr = microwatt_calibrate_decr,
};
--
2.25.3
^ permalink raw reply related
* [PATCH RFC 4/4] powerpc/radix: Add support for microwatt's PRTBL SPR
From: Paul Mackerras @ 2020-05-09 5:04 UTC (permalink / raw)
To: linuxppc-dev, Benjamin Herrenschmidt, Michael Neuling,
Anton Blanchard
In-Reply-To: <20200509050103.GA1464954@thinks.paulus.ozlabs.org>
Microwatt currently doesn't implement hypervisor mode and therefore
doesn't implement the partition table. It does implement the process
table and radix page table walks.
This adds code to write the base address of the process table to the
PRTBL SPR, which has been assigned SPR 720 for now, as that is in the
range of SPR numbers assigned for experimental use. PRTBL is only
written when we have neither the FW_FEATURE_LPAR feature nor the
CPU_FTR_HVMODE feature.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
---
arch/powerpc/include/asm/reg.h | 1 +
arch/powerpc/mm/book3s64/radix_pgtable.c | 13 +++++++++----
2 files changed, 10 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 1aa46dff0957..6ea3fc42740d 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -721,6 +721,7 @@
#endif
#define SPRN_TIR 0x1BE /* Thread Identification Register */
#define SPRN_PTCR 0x1D0 /* Partition table control Register */
+#define SPRN_PRTBL 0x2D0 /* Process table pointer */
#define SPRN_PSPB 0x09F /* Problem State Priority Boost reg */
#define SPRN_PTEHI 0x3D5 /* 981 7450 PTE HI word (S/W TLB load) */
#define SPRN_PTELO 0x3D6 /* 982 7450 PTE LO word (S/W TLB load) */
diff --git a/arch/powerpc/mm/book3s64/radix_pgtable.c b/arch/powerpc/mm/book3s64/radix_pgtable.c
index dd1bea45325c..2e6a376c9d82 100644
--- a/arch/powerpc/mm/book3s64/radix_pgtable.c
+++ b/arch/powerpc/mm/book3s64/radix_pgtable.c
@@ -600,10 +600,15 @@ void __init radix__early_init_mmu(void)
radix_init_pgtable();
if (!firmware_has_feature(FW_FEATURE_LPAR)) {
- lpcr = mfspr(SPRN_LPCR);
- mtspr(SPRN_LPCR, lpcr | LPCR_UPRT | LPCR_HR);
- radix_init_partition_table();
- radix_init_amor();
+ if (cpu_has_feature(CPU_FTR_HVMODE)) {
+ lpcr = mfspr(SPRN_LPCR);
+ mtspr(SPRN_LPCR, lpcr | LPCR_UPRT | LPCR_HR);
+ radix_init_partition_table();
+ radix_init_amor();
+ } else {
+ mtspr(SPRN_PRTBL, (__pa(process_tb) |
+ (PRTB_SIZE_SHIFT - 12)));
+ }
} else {
radix_init_pseries();
}
--
2.25.3
^ permalink raw reply related
* [PATCH RFC 1/4] powerpc/radix: Fix compilation for radix with CONFIG_SMP=n
From: Paul Mackerras @ 2020-05-09 5:02 UTC (permalink / raw)
To: linuxppc-dev, Benjamin Herrenschmidt, Michael Neuling,
Anton Blanchard
In-Reply-To: <20200509050103.GA1464954@thinks.paulus.ozlabs.org>
This fixes the compile errors we currently get with CONFIG_SMP=n and
CONFIG_PPC_RADIX_MMU=y.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
---
arch/powerpc/include/asm/book3s/64/tlbflush-radix.h | 2 ++
arch/powerpc/mm/book3s64/radix_tlb.c | 2 --
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
index ca8db193ae38..adcc6114d170 100644
--- a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
+++ b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
@@ -68,6 +68,8 @@ extern void radix__flush_tlb_page_psize(struct mm_struct *mm, unsigned long vmad
#define radix__flush_all_mm(mm) radix__local_flush_all_mm(mm)
#define radix__flush_tlb_page(vma,addr) radix__local_flush_tlb_page(vma,addr)
#define radix__flush_tlb_page_psize(mm,addr,p) radix__local_flush_tlb_page_psize(mm,addr,p)
+#define exit_flush_lazy_tlbs(mm) do { } while (0)
+#define __flush_all_mm(mm, fullmm) radix__local_flush_all_mm(mm)
#endif
extern void radix__flush_tlb_pwc(struct mmu_gather *tlb, unsigned long addr);
extern void radix__flush_tlb_collapsed_pmd(struct mm_struct *mm, unsigned long addr);
diff --git a/arch/powerpc/mm/book3s64/radix_tlb.c b/arch/powerpc/mm/book3s64/radix_tlb.c
index 03f43c924e00..e3ea026cf91e 100644
--- a/arch/powerpc/mm/book3s64/radix_tlb.c
+++ b/arch/powerpc/mm/book3s64/radix_tlb.c
@@ -776,8 +776,6 @@ void radix__flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr)
}
EXPORT_SYMBOL(radix__flush_tlb_page);
-#else /* CONFIG_SMP */
-#define radix__flush_all_mm radix__local_flush_all_mm
#endif /* CONFIG_SMP */
static void do_tlbiel_kernel(void *info)
--
2.25.3
^ permalink raw reply related
* [PATCH RFC 0/4] Add support for Microwatt-based SoCs
From: Paul Mackerras @ 2020-05-09 5:01 UTC (permalink / raw)
To: linuxppc-dev, Benjamin Herrenschmidt, Michael Neuling,
Anton Blanchard
This patch series adds support for running Linux on a Microwatt SoC
(system on chip) implementation on an FPGA. Microwatt is a small
Power ISA implementation, targetted at FPGAs, aiming for PowerISA
v3.0B compliance. It does not currently implement any floating-point
or vector instructions, hypervisor mode, big-endian mode, 32-bit mode,
or the HPT/SLB MMU facilities. However, it does support enough to run
Linux (as of my "mmu" branch plus Ben's "litedram" branch").
Paul.
^ permalink raw reply
* [PATCH RFC 2/4] powerpc: Add Microwatt platform
From: Paul Mackerras @ 2020-05-09 5:02 UTC (permalink / raw)
To: linuxppc-dev, Benjamin Herrenschmidt, Michael Neuling,
Anton Blanchard
In-Reply-To: <20200509050103.GA1464954@thinks.paulus.ozlabs.org>
Microwatt is a FPGA-based implementation of the Power ISA. It
currently only implements little-endian 64-bit mode, and does
not (yet) support SMP.
This adds a new machine type to support FPGA-based SoCs with a
Microwatt core.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
---
arch/powerpc/Kconfig | 2 +-
arch/powerpc/configs/microwatt_defconfig | 1418 +++++++++++++++++++++
arch/powerpc/platforms/Kconfig | 1 +
arch/powerpc/platforms/Makefile | 1 +
arch/powerpc/platforms/microwatt/Kconfig | 9 +
arch/powerpc/platforms/microwatt/Makefile | 1 +
arch/powerpc/platforms/microwatt/setup.c | 40 +
7 files changed, 1471 insertions(+), 1 deletion(-)
create mode 100644 arch/powerpc/configs/microwatt_defconfig
create mode 100644 arch/powerpc/platforms/microwatt/Kconfig
create mode 100644 arch/powerpc/platforms/microwatt/Makefile
create mode 100644 arch/powerpc/platforms/microwatt/setup.c
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 497b7d0b2d7e..97286b8312f5 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -407,7 +407,7 @@ config HUGETLB_PAGE_SIZE_VARIABLE
config MATH_EMULATION
bool "Math emulation"
- depends on 4xx || PPC_8xx || PPC_MPC832x || BOOKE
+ depends on 4xx || PPC_8xx || PPC_MPC832x || BOOKE || PPC_MICROWATT
help
Some PowerPC chips designed for embedded applications do not have
a floating-point unit and therefore do not implement the
diff --git a/arch/powerpc/configs/microwatt_defconfig b/arch/powerpc/configs/microwatt_defconfig
new file mode 100644
index 000000000000..f4f4c965a786
--- /dev/null
+++ b/arch/powerpc/configs/microwatt_defconfig
@@ -0,0 +1,1418 @@
+#
+# Automatically generated file; DO NOT EDIT.
+# Linux/powerpc 5.6.0 Kernel Configuration
+#
+
+#
+# Compiler: powerpc64le-linux-gnu-gcc (GCC) 9.2.1 20190827 (Red Hat Cross 9.2.1-1)
+#
+CONFIG_CC_IS_GCC=y
+CONFIG_GCC_VERSION=90201
+CONFIG_CLANG_VERSION=0
+CONFIG_CC_HAS_ASM_GOTO=y
+CONFIG_CC_HAS_ASM_INLINE=y
+CONFIG_CC_HAS_WARN_MAYBE_UNINITIALIZED=y
+CONFIG_CC_DISABLE_WARN_MAYBE_UNINITIALIZED=y
+CONFIG_IRQ_WORK=y
+CONFIG_BUILDTIME_TABLE_SORT=y
+CONFIG_THREAD_INFO_IN_TASK=y
+
+#
+# General setup
+#
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+# CONFIG_COMPILE_TEST is not set
+CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
+CONFIG_BUILD_SALT=""
+CONFIG_HAVE_KERNEL_GZIP=y
+CONFIG_HAVE_KERNEL_XZ=y
+# CONFIG_KERNEL_GZIP is not set
+CONFIG_KERNEL_XZ=y
+CONFIG_DEFAULT_HOSTNAME="arty"
+# CONFIG_SWAP is not set
+# CONFIG_SYSVIPC is not set
+# CONFIG_CROSS_MEMORY_ATTACH is not set
+# CONFIG_USELIB is not set
+CONFIG_HAVE_ARCH_AUDITSYSCALL=y
+
+#
+# IRQ subsystem
+#
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_FORCED_THREADING=y
+CONFIG_SPARSE_IRQ=y
+# end of IRQ subsystem
+
+CONFIG_GENERIC_TIME_VSYSCALL=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CMOS_UPDATE=y
+
+#
+# Timers subsystem
+#
+CONFIG_TICK_ONESHOT=y
+CONFIG_HZ_PERIODIC=y
+# CONFIG_NO_HZ_IDLE is not set
+# CONFIG_NO_HZ is not set
+CONFIG_HIGH_RES_TIMERS=y
+# end of Timers subsystem
+
+# CONFIG_PREEMPT_NONE is not set
+CONFIG_PREEMPT_VOLUNTARY=y
+# CONFIG_PREEMPT is not set
+
+#
+# CPU/Task time and stats accounting
+#
+CONFIG_TICK_CPU_ACCOUNTING=y
+# CONFIG_VIRT_CPU_ACCOUNTING_NATIVE is not set
+# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
+# CONFIG_IRQ_TIME_ACCOUNTING is not set
+# CONFIG_BSD_PROCESS_ACCT is not set
+# CONFIG_PSI is not set
+# end of CPU/Task time and stats accounting
+
+#
+# RCU Subsystem
+#
+CONFIG_TINY_RCU=y
+# CONFIG_RCU_EXPERT is not set
+CONFIG_SRCU=y
+CONFIG_TINY_SRCU=y
+# end of RCU Subsystem
+
+# CONFIG_IKCONFIG is not set
+# CONFIG_IKHEADERS is not set
+CONFIG_LOG_BUF_SHIFT=16
+CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=12
+
+#
+# Scheduler features
+#
+# end of Scheduler features
+
+CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
+CONFIG_CC_HAS_INT128=y
+# CONFIG_CGROUPS is not set
+# CONFIG_NAMESPACES is not set
+# CONFIG_CHECKPOINT_RESTORE is not set
+# CONFIG_SCHED_AUTOGROUP is not set
+# CONFIG_SYSFS_DEPRECATED is not set
+# CONFIG_RELAY is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_INITRAMFS_SOURCE="rootfs.cpio"
+CONFIG_INITRAMFS_ROOT_UID=0
+CONFIG_INITRAMFS_ROOT_GID=0
+# CONFIG_RD_GZIP is not set
+# CONFIG_RD_BZIP2 is not set
+# CONFIG_RD_LZMA is not set
+CONFIG_RD_XZ=y
+# CONFIG_RD_LZO is not set
+# CONFIG_RD_LZ4 is not set
+CONFIG_INITRAMFS_COMPRESSION_XZ=y
+# CONFIG_INITRAMFS_COMPRESSION_NONE is not set
+# CONFIG_BOOT_CONFIG is not set
+# CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_HAVE_LD_DEAD_CODE_DATA_ELIMINATION=y
+# CONFIG_LD_DEAD_CODE_DATA_ELIMINATION is not set
+CONFIG_SYSCTL=y
+CONFIG_SYSCTL_EXCEPTION_TRACE=y
+CONFIG_EXPERT=y
+CONFIG_MULTIUSER=y
+# CONFIG_SGETMASK_SYSCALL is not set
+# CONFIG_SYSFS_SYSCALL is not set
+# CONFIG_FHANDLE is not set
+CONFIG_POSIX_TIMERS=y
+CONFIG_PRINTK=y
+CONFIG_PRINTK_NMI=y
+CONFIG_BUG=y
+# CONFIG_BASE_FULL is not set
+CONFIG_FUTEX=y
+CONFIG_FUTEX_PI=y
+# CONFIG_EPOLL is not set
+# CONFIG_SIGNALFD is not set
+# CONFIG_TIMERFD is not set
+# CONFIG_EVENTFD is not set
+# CONFIG_SHMEM is not set
+# CONFIG_AIO is not set
+# CONFIG_IO_URING is not set
+# CONFIG_ADVISE_SYSCALLS is not set
+# CONFIG_MEMBARRIER is not set
+CONFIG_KALLSYMS=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_KALLSYMS_BASE_RELATIVE=y
+# CONFIG_BPF_SYSCALL is not set
+# CONFIG_USERFAULTFD is not set
+CONFIG_ARCH_HAS_MEMBARRIER_CALLBACKS=y
+# CONFIG_RSEQ is not set
+CONFIG_EMBEDDED=y
+CONFIG_HAVE_PERF_EVENTS=y
+# CONFIG_PC104 is not set
+
+#
+# Kernel Performance Events And Counters
+#
+# CONFIG_PERF_EVENTS is not set
+# end of Kernel Performance Events And Counters
+
+# CONFIG_VM_EVENT_COUNTERS is not set
+# CONFIG_SLUB_DEBUG is not set
+# CONFIG_COMPAT_BRK is not set
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
+# CONFIG_SLOB is not set
+# CONFIG_SLAB_MERGE_DEFAULT is not set
+# CONFIG_SLAB_FREELIST_RANDOM is not set
+# CONFIG_SLAB_FREELIST_HARDENED is not set
+# CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set
+# CONFIG_PROFILING is not set
+# end of General setup
+
+CONFIG_PPC64=y
+
+#
+# Processor support
+#
+CONFIG_PPC_BOOK3S_64=y
+# CONFIG_PPC_BOOK3E_64 is not set
+CONFIG_GENERIC_CPU=y
+# CONFIG_POWER7_CPU is not set
+# CONFIG_POWER8_CPU is not set
+# CONFIG_POWER9_CPU is not set
+CONFIG_PPC_BOOK3S=y
+CONFIG_PPC_FPU=y
+# CONFIG_ALTIVEC is not set
+CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
+CONFIG_PPC_RADIX_MMU=y
+CONFIG_PPC_RADIX_MMU_DEFAULT=y
+CONFIG_PPC_HAVE_KUEP=y
+# CONFIG_PPC_KUEP is not set
+CONFIG_PPC_HAVE_KUAP=y
+# CONFIG_PPC_KUAP is not set
+# CONFIG_PPC_KUAP_DEBUG is not set
+CONFIG_PPC_MM_SLICES=y
+CONFIG_PPC_HAVE_PMU_SUPPORT=y
+# CONFIG_SMP is not set
+# end of Processor support
+
+# CONFIG_CPU_BIG_ENDIAN is not set
+CONFIG_CPU_LITTLE_ENDIAN=y
+CONFIG_PPC64_BOOT_WRAPPER=y
+CONFIG_64BIT=y
+CONFIG_MMU=y
+CONFIG_ARCH_MMAP_RND_BITS_MAX=33
+CONFIG_ARCH_MMAP_RND_BITS_MIN=18
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=17
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=11
+CONFIG_HAVE_SETUP_PER_CPU_AREA=y
+CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
+CONFIG_NR_IRQS=64
+CONFIG_STACKTRACE_SUPPORT=y
+CONFIG_TRACE_IRQFLAGS_SUPPORT=y
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_PPC=y
+CONFIG_PPC_BARRIER_NOSPEC=y
+CONFIG_EARLY_PRINTK=y
+CONFIG_PANIC_TIMEOUT=10
+CONFIG_COMPAT=y
+CONFIG_SCHED_OMIT_FRAME_POINTER=y
+CONFIG_AUDIT_ARCH=y
+CONFIG_GENERIC_BUG=y
+CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
+CONFIG_ARCH_SUPPORTS_UPROBES=y
+CONFIG_PPC_DAWR=y
+CONFIG_PGTABLE_LEVELS=4
+CONFIG_PPC_XICS=y
+
+#
+# Platform support
+#
+# CONFIG_PPC_POWERNV is not set
+# CONFIG_PPC_PSERIES is not set
+CONFIG_PPC_MICROWATT=y
+# CONFIG_KVM_GUEST is not set
+# CONFIG_EPAPR_PARAVIRT is not set
+CONFIG_PPC_NATIVE=y
+# CONFIG_PPC_OF_BOOT_TRAMPOLINE is not set
+CONFIG_PPC_DT_CPU_FTRS=y
+CONFIG_PPC_SMP_MUXED_IPI=y
+
+#
+# CPU Frequency scaling
+#
+CONFIG_CPU_FREQ=y
+# CONFIG_CPU_FREQ_STAT is not set
+CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
+# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
+# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
+# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
+# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
+CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
+# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
+# CONFIG_CPU_FREQ_GOV_USERSPACE is not set
+# CONFIG_CPU_FREQ_GOV_ONDEMAND is not set
+# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
+
+#
+# CPU frequency scaling drivers
+#
+# end of CPU Frequency scaling
+
+#
+# CPUIdle driver
+#
+
+#
+# CPU Idle
+#
+# CONFIG_CPU_IDLE is not set
+# end of CPU Idle
+# end of CPUIdle driver
+
+# CONFIG_GEN_RTC is not set
+# end of Platform support
+
+#
+# Kernel options
+#
+CONFIG_HZ_100=y
+# CONFIG_HZ_250 is not set
+# CONFIG_HZ_300 is not set
+# CONFIG_HZ_1000 is not set
+CONFIG_HZ=100
+CONFIG_SCHED_HRTICK=y
+CONFIG_MATH_EMULATION=y
+CONFIG_MATH_EMULATION_FULL=y
+# CONFIG_MATH_EMULATION_HW_UNIMPLEMENTED is not set
+# CONFIG_LD_HEAD_STUB_CATCH is not set
+CONFIG_MPROFILE_KERNEL=y
+CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
+CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
+# CONFIG_PPC64_SUPPORTS_MEMORY_FAILURE is not set
+# CONFIG_KEXEC is not set
+# CONFIG_RELOCATABLE is not set
+# CONFIG_CRASH_DUMP is not set
+# CONFIG_NUMA is not set
+CONFIG_ARCH_SELECT_MEMORY_MODEL=y
+CONFIG_ARCH_FLATMEM_ENABLE=y
+CONFIG_ARCH_SPARSEMEM_ENABLE=y
+CONFIG_ARCH_SPARSEMEM_DEFAULT=y
+CONFIG_SYS_SUPPORTS_HUGETLBFS=y
+CONFIG_ILLEGAL_POINTER_VALUE=0x5deadbeef0000000
+CONFIG_PPC_4K_PAGES=y
+# CONFIG_PPC_64K_PAGES is not set
+CONFIG_PPC_PAGE_SHIFT=12
+CONFIG_THREAD_SHIFT=14
+CONFIG_ETEXT_SHIFT=12
+CONFIG_DATA_SHIFT=12
+CONFIG_FORCE_MAX_ZONEORDER=13
+# CONFIG_PPC_DENORMALISATION is not set
+# CONFIG_CMDLINE_BOOL is not set
+CONFIG_CMDLINE=""
+CONFIG_EXTRA_TARGETS=""
+# CONFIG_PM is not set
+# CONFIG_SECCOMP is not set
+# CONFIG_PPC_MEM_KEYS is not set
+# end of Kernel options
+
+#
+# Bus options
+#
+# CONFIG_FSL_LBC is not set
+# end of Bus options
+
+CONFIG_PAGE_OFFSET=0xc000000000000000
+CONFIG_KERNEL_START=0xc000000000000000
+CONFIG_PHYSICAL_START=0x00000000
+# CONFIG_VIRTUALIZATION is not set
+CONFIG_HAVE_LIVEPATCH=y
+
+#
+# General architecture-dependent options
+#
+CONFIG_HAVE_OPROFILE=y
+# CONFIG_JUMP_LABEL is not set
+CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
+CONFIG_ARCH_USE_BUILTIN_BSWAP=y
+CONFIG_HAVE_IOREMAP_PROT=y
+CONFIG_HAVE_KPROBES=y
+CONFIG_HAVE_KRETPROBES=y
+CONFIG_HAVE_OPTPROBES=y
+CONFIG_HAVE_KPROBES_ON_FTRACE=y
+CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y
+CONFIG_HAVE_NMI=y
+CONFIG_HAVE_ARCH_TRACEHOOK=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
+CONFIG_HAVE_ASM_MODVERSIONS=y
+CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
+CONFIG_HAVE_RSEQ=y
+CONFIG_HAVE_PERF_EVENTS_NMI=y
+CONFIG_HAVE_NMI_WATCHDOG=y
+CONFIG_HAVE_HARDLOCKUP_DETECTOR_ARCH=y
+CONFIG_HAVE_PERF_REGS=y
+CONFIG_HAVE_PERF_USER_STACK_DUMP=y
+CONFIG_HAVE_ARCH_JUMP_LABEL=y
+CONFIG_MMU_GATHER_TABLE_FREE=y
+CONFIG_MMU_GATHER_RCU_TABLE_FREE=y
+CONFIG_MMU_GATHER_PAGE_SIZE=y
+CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
+CONFIG_ARCH_WEAK_RELEASE_ACQUIRE=y
+CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
+CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y
+CONFIG_ARCH_WANT_OLD_COMPAT_IPC=y
+CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
+CONFIG_HAVE_STACKPROTECTOR=y
+CONFIG_CC_HAS_STACKPROTECTOR_NONE=y
+# CONFIG_STACKPROTECTOR is not set
+CONFIG_HAVE_CONTEXT_TRACKING=y
+CONFIG_HAVE_VIRT_CPU_ACCOUNTING=y
+CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
+CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
+CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
+CONFIG_HAVE_ARCH_HUGE_VMAP=y
+CONFIG_HAVE_ARCH_SOFT_DIRTY=y
+CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
+CONFIG_MODULES_USE_ELF_RELA=y
+CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
+CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
+CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
+CONFIG_ARCH_MMAP_RND_BITS=18
+CONFIG_HAVE_ARCH_MMAP_RND_COMPAT_BITS=y
+CONFIG_ARCH_MMAP_RND_COMPAT_BITS=11
+CONFIG_HAVE_COPY_THREAD_TLS=y
+CONFIG_HAVE_RELIABLE_STACKTRACE=y
+CONFIG_HAVE_ARCH_NVRAM_OPS=y
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_OLD_SIGSUSPEND=y
+CONFIG_COMPAT_OLD_SIGACTION=y
+CONFIG_COMPAT_32BIT_TIME=y
+CONFIG_ARCH_OPTIONAL_KERNEL_RWX=y
+CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
+# CONFIG_STRICT_KERNEL_RWX is not set
+CONFIG_ARCH_HAS_PHYS_TO_DMA=y
+
+#
+# GCOV-based kernel profiling
+#
+CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
+# end of GCOV-based kernel profiling
+
+CONFIG_PLUGIN_HOSTCC=""
+CONFIG_HAVE_GCC_PLUGINS=y
+# end of General architecture-dependent options
+
+CONFIG_RT_MUTEXES=y
+CONFIG_BASE_SMALL=1
+# CONFIG_MODULES is not set
+CONFIG_BLOCK=y
+CONFIG_BLK_SCSI_REQUEST=y
+CONFIG_BLK_DEV_BSG=y
+# CONFIG_BLK_DEV_BSGLIB is not set
+# CONFIG_BLK_DEV_INTEGRITY is not set
+# CONFIG_BLK_DEV_ZONED is not set
+# CONFIG_BLK_CMDLINE_PARSER is not set
+# CONFIG_BLK_WBT is not set
+# CONFIG_BLK_SED_OPAL is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+CONFIG_EFI_PARTITION=y
+# end of Partition Types
+
+CONFIG_BLOCK_COMPAT=y
+
+#
+# IO Schedulers
+#
+CONFIG_MQ_IOSCHED_DEADLINE=y
+# CONFIG_MQ_IOSCHED_KYBER is not set
+# CONFIG_IOSCHED_BFQ is not set
+# end of IO Schedulers
+
+CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
+CONFIG_INLINE_READ_UNLOCK=y
+CONFIG_INLINE_READ_UNLOCK_IRQ=y
+CONFIG_INLINE_WRITE_UNLOCK=y
+CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
+CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
+CONFIG_ARCH_HAS_MMIOWB=y
+
+#
+# Executable file formats
+#
+CONFIG_BINFMT_ELF=y
+CONFIG_COMPAT_BINFMT_ELF=y
+CONFIG_ELFCORE=y
+CONFIG_BINFMT_SCRIPT=y
+# CONFIG_BINFMT_MISC is not set
+# CONFIG_COREDUMP is not set
+# end of Executable file formats
+
+#
+# Memory Management options
+#
+CONFIG_SELECT_MEMORY_MODEL=y
+# CONFIG_FLATMEM_MANUAL is not set
+CONFIG_SPARSEMEM_MANUAL=y
+CONFIG_SPARSEMEM=y
+CONFIG_HAVE_MEMORY_PRESENT=y
+CONFIG_SPARSEMEM_EXTREME=y
+CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
+CONFIG_SPARSEMEM_VMEMMAP=y
+CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
+CONFIG_HAVE_FAST_GUP=y
+CONFIG_ARCH_KEEP_MEMBLOCK=y
+# CONFIG_MEMORY_HOTPLUG is not set
+CONFIG_SPLIT_PTLOCK_CPUS=4
+# CONFIG_COMPACTION is not set
+# CONFIG_MIGRATION is not set
+CONFIG_PHYS_ADDR_T_64BIT=y
+# CONFIG_KSM is not set
+CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
+# CONFIG_TRANSPARENT_HUGEPAGE is not set
+CONFIG_NEED_PER_CPU_KM=y
+# CONFIG_CLEANCACHE is not set
+# CONFIG_CMA is not set
+# CONFIG_ZPOOL is not set
+# CONFIG_ZBUD is not set
+# CONFIG_ZSMALLOC is not set
+CONFIG_GENERIC_EARLY_IOREMAP=y
+# CONFIG_IDLE_PAGE_TRACKING is not set
+CONFIG_ARCH_HAS_PTE_DEVMAP=y
+# CONFIG_PERCPU_STATS is not set
+# CONFIG_GUP_BENCHMARK is not set
+CONFIG_ARCH_HAS_PTE_SPECIAL=y
+# end of Memory Management options
+
+# CONFIG_NET is not set
+CONFIG_HAVE_EBPF_JIT=y
+
+#
+# Device Drivers
+#
+# CONFIG_PCCARD is not set
+
+#
+# Generic Driver Options
+#
+# CONFIG_UEVENT_HELPER is not set
+# CONFIG_DEVTMPFS is not set
+# CONFIG_STANDALONE is not set
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+
+#
+# Firmware loader
+#
+# CONFIG_FW_LOADER is not set
+# end of Firmware loader
+
+# CONFIG_ALLOW_DEV_COREDUMP is not set
+# CONFIG_DEBUG_DRIVER is not set
+# CONFIG_DEBUG_DEVRES is not set
+# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
+CONFIG_GENERIC_CPU_AUTOPROBE=y
+CONFIG_GENERIC_CPU_VULNERABILITIES=y
+# end of Generic Driver Options
+
+#
+# Bus devices
+#
+# end of Bus devices
+
+# CONFIG_GNSS is not set
+# CONFIG_MTD is not set
+CONFIG_DTC=y
+CONFIG_OF=y
+# CONFIG_OF_UNITTEST is not set
+CONFIG_OF_FLATTREE=y
+CONFIG_OF_EARLY_FLATTREE=y
+CONFIG_OF_KOBJ=y
+CONFIG_OF_ADDRESS=y
+CONFIG_OF_IRQ=y
+CONFIG_OF_RESERVED_MEM=y
+# CONFIG_OF_OVERLAY is not set
+CONFIG_OF_DMA_DEFAULT_COHERENT=y
+CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
+# CONFIG_PARPORT is not set
+CONFIG_BLK_DEV=y
+# CONFIG_BLK_DEV_NULL_BLK is not set
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
+# CONFIG_BLK_DEV_CRYPTOLOOP is not set
+
+#
+# DRBD disabled because PROC_FS or INET not selected
+#
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+# CONFIG_CDROM_PKTCDVD is not set
+
+#
+# NVME Support
+#
+# CONFIG_NVME_FC is not set
+# end of NVME Support
+
+#
+# Misc devices
+#
+# CONFIG_DUMMY_IRQ is not set
+# CONFIG_ENCLOSURE_SERVICES is not set
+# CONFIG_SRAM is not set
+# CONFIG_XILINX_SDFEC is not set
+# CONFIG_PVPANIC is not set
+# CONFIG_C2PORT is not set
+
+#
+# EEPROM support
+#
+# CONFIG_EEPROM_93CX6 is not set
+# end of EEPROM support
+
+#
+# Texas Instruments shared transport line discipline
+#
+# end of Texas Instruments shared transport line discipline
+
+#
+# Altera FPGA firmware download module (requires I2C)
+#
+
+#
+# Intel MIC & related support
+#
+# CONFIG_VOP_BUS is not set
+# end of Intel MIC & related support
+
+# CONFIG_ECHO is not set
+# end of Misc devices
+
+CONFIG_HAVE_IDE=y
+# CONFIG_IDE is not set
+
+#
+# SCSI device support
+#
+CONFIG_SCSI_MOD=y
+# CONFIG_RAID_ATTRS is not set
+# CONFIG_SCSI is not set
+# end of SCSI device support
+
+# CONFIG_ATA is not set
+# CONFIG_MD is not set
+# CONFIG_TARGET_CORE is not set
+# CONFIG_MACINTOSH_DRIVERS is not set
+# CONFIG_NVM is not set
+
+#
+# Input device support
+#
+# CONFIG_INPUT is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
+# CONFIG_GAMEPORT is not set
+# end of Hardware I/O ports
+# end of Input device support
+
+#
+# Character devices
+#
+CONFIG_TTY=y
+# CONFIG_VT is not set
+CONFIG_UNIX98_PTYS=y
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+CONFIG_SERIAL_NONSTANDARD=y
+# CONFIG_N_HDLC is not set
+# CONFIG_TRACE_SINK is not set
+# CONFIG_PPC_EPAPR_HV_BYTECHAN is not set
+# CONFIG_NULL_TTY is not set
+CONFIG_LDISC_AUTOLOAD=y
+CONFIG_DEVMEM=y
+# CONFIG_DEVKMEM is not set
+
+#
+# Serial drivers
+#
+# CONFIG_SERIAL_8250 is not set
+
+#
+# Non-8250 serial port support
+#
+# CONFIG_SERIAL_UARTLITE is not set
+# CONFIG_SERIAL_SIFIVE is not set
+# CONFIG_SERIAL_SCCNXP is not set
+# CONFIG_SERIAL_ALTERA_JTAGUART is not set
+# CONFIG_SERIAL_ALTERA_UART is not set
+# CONFIG_SERIAL_XILINX_PS_UART is not set
+# CONFIG_SERIAL_ARC is not set
+# CONFIG_SERIAL_FSL_LPUART is not set
+# CONFIG_SERIAL_FSL_LINFLEXUART is not set
+# CONFIG_SERIAL_CONEXANT_DIGICOLOR is not set
+# end of Serial drivers
+
+# CONFIG_SERIAL_DEV_BUS is not set
+# CONFIG_TTY_PRINTK is not set
+CONFIG_HVC_DRIVER=y
+CONFIG_HVC_UDBG=y
+# CONFIG_IPMI_HANDLER is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_NVRAM is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_HANGCHECK_TIMER is not set
+# CONFIG_TCG_TPM is not set
+# CONFIG_XILLYBUS is not set
+# end of Character devices
+
+# CONFIG_RANDOM_TRUST_CPU is not set
+# CONFIG_RANDOM_TRUST_BOOTLOADER is not set
+
+#
+# I2C support
+#
+# CONFIG_I2C is not set
+# end of I2C support
+
+# CONFIG_I3C is not set
+# CONFIG_SPI is not set
+# CONFIG_SPMI is not set
+# CONFIG_HSI is not set
+# CONFIG_PPS is not set
+
+#
+# PTP clock support
+#
+
+#
+# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
+#
+# end of PTP clock support
+
+# CONFIG_PINCTRL is not set
+# CONFIG_GPIOLIB is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_AVS is not set
+# CONFIG_POWER_RESET is not set
+# CONFIG_POWER_SUPPLY is not set
+# CONFIG_HWMON is not set
+# CONFIG_THERMAL is not set
+# CONFIG_WATCHDOG is not set
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+CONFIG_BCMA_POSSIBLE=y
+# CONFIG_BCMA is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_ATMEL_FLEXCOM is not set
+# CONFIG_MFD_ATMEL_HLCDC is not set
+# CONFIG_MFD_MADERA is not set
+# CONFIG_MFD_HI6421_PMIC is not set
+# CONFIG_HTC_PASIC3 is not set
+# CONFIG_MFD_KEMPLD is not set
+# CONFIG_MFD_MT6397 is not set
+# CONFIG_MFD_SM501 is not set
+# CONFIG_ABX500_CORE is not set
+# CONFIG_MFD_SYSCON is not set
+# CONFIG_MFD_TI_AM335X_TSCADC is not set
+# CONFIG_MFD_TQMX86 is not set
+# end of Multifunction device drivers
+
+# CONFIG_REGULATOR is not set
+# CONFIG_MEDIA_SUPPORT is not set
+
+#
+# Graphics support
+#
+# CONFIG_DRM is not set
+
+#
+# ARM devices
+#
+# end of ARM devices
+
+#
+# ACP (Audio CoProcessor) Configuration
+#
+# end of ACP (Audio CoProcessor) Configuration
+
+#
+# Frame buffer Devices
+#
+# CONFIG_FB is not set
+# end of Frame buffer Devices
+
+#
+# Backlight & LCD device support
+#
+# CONFIG_LCD_CLASS_DEVICE is not set
+# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
+# end of Backlight & LCD device support
+# end of Graphics support
+
+# CONFIG_SOUND is not set
+CONFIG_USB_OHCI_LITTLE_ENDIAN=y
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_MMC is not set
+# CONFIG_MEMSTICK is not set
+# CONFIG_NEW_LEDS is not set
+# CONFIG_ACCESSIBILITY is not set
+CONFIG_EDAC_ATOMIC_SCRUB=y
+CONFIG_EDAC_SUPPORT=y
+CONFIG_RTC_LIB=y
+# CONFIG_RTC_CLASS is not set
+# CONFIG_DMADEVICES is not set
+
+#
+# DMABUF options
+#
+# CONFIG_SYNC_FILE is not set
+# CONFIG_DMABUF_HEAPS is not set
+# end of DMABUF options
+
+# CONFIG_AUXDISPLAY is not set
+# CONFIG_UIO is not set
+# CONFIG_VIRT_DRIVERS is not set
+# CONFIG_VIRTIO_MENU is not set
+
+#
+# Microsoft Hyper-V guest support
+#
+# end of Microsoft Hyper-V guest support
+
+# CONFIG_GREYBUS is not set
+# CONFIG_STAGING is not set
+# CONFIG_GOLDFISH is not set
+# CONFIG_HWSPINLOCK is not set
+
+#
+# Clock Source drivers
+#
+# CONFIG_MICROCHIP_PIT64B is not set
+# end of Clock Source drivers
+
+# CONFIG_MAILBOX is not set
+# CONFIG_IOMMU_SUPPORT is not set
+
+#
+# Remoteproc drivers
+#
+# CONFIG_REMOTEPROC is not set
+# end of Remoteproc drivers
+
+#
+# Rpmsg drivers
+#
+# CONFIG_RPMSG_VIRTIO is not set
+# end of Rpmsg drivers
+
+# CONFIG_SOUNDWIRE is not set
+
+#
+# SOC (System On Chip) specific Drivers
+#
+
+#
+# Amlogic SoC drivers
+#
+# end of Amlogic SoC drivers
+
+#
+# Aspeed SoC drivers
+#
+# end of Aspeed SoC drivers
+
+#
+# Broadcom SoC drivers
+#
+# end of Broadcom SoC drivers
+
+#
+# NXP/Freescale QorIQ SoC drivers
+#
+# CONFIG_QUICC_ENGINE is not set
+# end of NXP/Freescale QorIQ SoC drivers
+
+#
+# i.MX SoC drivers
+#
+# end of i.MX SoC drivers
+
+#
+# Qualcomm SoC drivers
+#
+# end of Qualcomm SoC drivers
+
+# CONFIG_SOC_TI is not set
+
+#
+# Xilinx SoC drivers
+#
+# CONFIG_XILINX_VCU is not set
+# end of Xilinx SoC drivers
+# end of SOC (System On Chip) specific Drivers
+
+# CONFIG_PM_DEVFREQ is not set
+# CONFIG_EXTCON is not set
+# CONFIG_MEMORY is not set
+# CONFIG_IIO is not set
+# CONFIG_PWM is not set
+
+#
+# IRQ chip support
+#
+CONFIG_IRQCHIP=y
+# CONFIG_AL_FIC is not set
+# end of IRQ chip support
+
+# CONFIG_IPACK_BUS is not set
+# CONFIG_RESET_CONTROLLER is not set
+
+#
+# PHY Subsystem
+#
+# CONFIG_GENERIC_PHY is not set
+# CONFIG_BCM_KONA_USB2_PHY is not set
+# CONFIG_PHY_CADENCE_DP is not set
+# CONFIG_PHY_CADENCE_DPHY is not set
+# CONFIG_PHY_FSL_IMX8MQ_USB is not set
+# CONFIG_PHY_MIXEL_MIPI_DPHY is not set
+# CONFIG_PHY_PXA_28NM_HSIC is not set
+# CONFIG_PHY_PXA_28NM_USB2 is not set
+# CONFIG_PHY_INTEL_EMMC is not set
+# end of PHY Subsystem
+
+# CONFIG_POWERCAP is not set
+# CONFIG_MCB is not set
+# CONFIG_RAS is not set
+
+#
+# Android
+#
+# CONFIG_ANDROID is not set
+# end of Android
+
+# CONFIG_LIBNVDIMM is not set
+# CONFIG_DAX is not set
+# CONFIG_NVMEM is not set
+
+#
+# HW tracing support
+#
+# CONFIG_STM is not set
+# CONFIG_INTEL_TH is not set
+# end of HW tracing support
+
+# CONFIG_FPGA is not set
+# CONFIG_FSI is not set
+# CONFIG_SIOX is not set
+# CONFIG_SLIMBUS is not set
+# CONFIG_INTERCONNECT is not set
+# CONFIG_COUNTER is not set
+# end of Device Drivers
+
+#
+# File systems
+#
+CONFIG_DCACHE_WORD_ACCESS=y
+# CONFIG_VALIDATE_FS_PARSER is not set
+CONFIG_FS_IOMAP=y
+# CONFIG_EXT2_FS is not set
+# CONFIG_EXT3_FS is not set
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_USE_FOR_EXT2=y
+# CONFIG_EXT4_FS_POSIX_ACL is not set
+# CONFIG_EXT4_FS_SECURITY is not set
+# CONFIG_EXT4_DEBUG is not set
+CONFIG_JBD2=y
+# CONFIG_JBD2_DEBUG is not set
+CONFIG_FS_MBCACHE=y
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_GFS2_FS is not set
+# CONFIG_BTRFS_FS is not set
+# CONFIG_NILFS2_FS is not set
+# CONFIG_F2FS_FS is not set
+# CONFIG_FS_DAX is not set
+# CONFIG_EXPORTFS_BLOCK_OPS is not set
+# CONFIG_FILE_LOCKING is not set
+# CONFIG_FS_ENCRYPTION is not set
+# CONFIG_FS_VERITY is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_INOTIFY_USER is not set
+# CONFIG_FANOTIFY is not set
+# CONFIG_QUOTA is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_FUSE_FS is not set
+# CONFIG_OVERLAY_FS is not set
+
+#
+# Caches
+#
+# CONFIG_FSCACHE is not set
+# end of Caches
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+# end of CD-ROM/DVD Filesystems
+
+#
+# DOS/FAT/NT Filesystems
+#
+# CONFIG_MSDOS_FS is not set
+# CONFIG_VFAT_FS is not set
+# CONFIG_NTFS_FS is not set
+# end of DOS/FAT/NT Filesystems
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+# CONFIG_PROC_KCORE is not set
+CONFIG_PROC_SYSCTL=y
+CONFIG_PROC_PAGE_MONITOR=y
+# CONFIG_PROC_CHILDREN is not set
+CONFIG_KERNFS=y
+CONFIG_SYSFS=y
+# CONFIG_HUGETLBFS is not set
+CONFIG_ARCH_HAS_GIGANTIC_PAGE=y
+# CONFIG_CONFIGFS_FS is not set
+# end of Pseudo filesystems
+
+# CONFIG_MISC_FILESYSTEMS is not set
+# CONFIG_NLS is not set
+# CONFIG_UNICODE is not set
+# end of File systems
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY_DMESG_RESTRICT is not set
+# CONFIG_SECURITY is not set
+# CONFIG_SECURITYFS is not set
+CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
+# CONFIG_HARDENED_USERCOPY is not set
+# CONFIG_FORTIFY_SOURCE is not set
+# CONFIG_STATIC_USERMODEHELPER is not set
+CONFIG_DEFAULT_SECURITY_DAC=y
+CONFIG_LSM="lockdown,yama,loadpin,safesetid,integrity"
+
+#
+# Kernel hardening options
+#
+
+#
+# Memory initialization
+#
+CONFIG_INIT_STACK_NONE=y
+# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
+# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
+# end of Memory initialization
+# end of Kernel hardening options
+# end of Security options
+
+CONFIG_CRYPTO=y
+
+#
+# Crypto core or helper
+#
+CONFIG_CRYPTO_ALGAPI=y
+CONFIG_CRYPTO_ALGAPI2=y
+CONFIG_CRYPTO_HASH=y
+CONFIG_CRYPTO_HASH2=y
+# CONFIG_CRYPTO_MANAGER is not set
+CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
+# CONFIG_CRYPTO_NULL is not set
+# CONFIG_CRYPTO_CRYPTD is not set
+# CONFIG_CRYPTO_AUTHENC is not set
+
+#
+# Public-key cryptography
+#
+# CONFIG_CRYPTO_RSA is not set
+# CONFIG_CRYPTO_DH is not set
+# CONFIG_CRYPTO_ECDH is not set
+# CONFIG_CRYPTO_ECRDSA is not set
+# CONFIG_CRYPTO_CURVE25519 is not set
+
+#
+# Authenticated Encryption with Associated Data
+#
+# CONFIG_CRYPTO_CCM is not set
+# CONFIG_CRYPTO_GCM is not set
+# CONFIG_CRYPTO_CHACHA20POLY1305 is not set
+# CONFIG_CRYPTO_AEGIS128 is not set
+# CONFIG_CRYPTO_SEQIV is not set
+# CONFIG_CRYPTO_ECHAINIV is not set
+
+#
+# Block modes
+#
+# CONFIG_CRYPTO_CBC is not set
+# CONFIG_CRYPTO_CFB is not set
+# CONFIG_CRYPTO_CTR is not set
+# CONFIG_CRYPTO_CTS is not set
+# CONFIG_CRYPTO_ECB is not set
+# CONFIG_CRYPTO_LRW is not set
+# CONFIG_CRYPTO_OFB is not set
+# CONFIG_CRYPTO_PCBC is not set
+# CONFIG_CRYPTO_XTS is not set
+# CONFIG_CRYPTO_KEYWRAP is not set
+# CONFIG_CRYPTO_ADIANTUM is not set
+# CONFIG_CRYPTO_ESSIV is not set
+
+#
+# Hash modes
+#
+# CONFIG_CRYPTO_CMAC is not set
+# CONFIG_CRYPTO_HMAC is not set
+# CONFIG_CRYPTO_XCBC is not set
+# CONFIG_CRYPTO_VMAC is not set
+
+#
+# Digest
+#
+CONFIG_CRYPTO_CRC32C=y
+# CONFIG_CRYPTO_CRC32 is not set
+# CONFIG_CRYPTO_XXHASH is not set
+# CONFIG_CRYPTO_BLAKE2B is not set
+# CONFIG_CRYPTO_BLAKE2S is not set
+# CONFIG_CRYPTO_CRCT10DIF is not set
+# CONFIG_CRYPTO_GHASH is not set
+# CONFIG_CRYPTO_POLY1305 is not set
+# CONFIG_CRYPTO_MD4 is not set
+# CONFIG_CRYPTO_MD5 is not set
+# CONFIG_CRYPTO_MD5_PPC is not set
+# CONFIG_CRYPTO_MICHAEL_MIC is not set
+# CONFIG_CRYPTO_RMD128 is not set
+# CONFIG_CRYPTO_RMD160 is not set
+# CONFIG_CRYPTO_RMD256 is not set
+# CONFIG_CRYPTO_RMD320 is not set
+# CONFIG_CRYPTO_SHA1 is not set
+# CONFIG_CRYPTO_SHA1_PPC is not set
+# CONFIG_CRYPTO_SHA256 is not set
+# CONFIG_CRYPTO_SHA512 is not set
+# CONFIG_CRYPTO_SHA3 is not set
+# CONFIG_CRYPTO_SM3 is not set
+# CONFIG_CRYPTO_STREEBOG is not set
+# CONFIG_CRYPTO_TGR192 is not set
+# CONFIG_CRYPTO_WP512 is not set
+
+#
+# Ciphers
+#
+# CONFIG_CRYPTO_AES is not set
+# CONFIG_CRYPTO_AES_TI is not set
+# CONFIG_CRYPTO_ANUBIS is not set
+# CONFIG_CRYPTO_ARC4 is not set
+# CONFIG_CRYPTO_BLOWFISH is not set
+# CONFIG_CRYPTO_CAMELLIA is not set
+# CONFIG_CRYPTO_CAST5 is not set
+# CONFIG_CRYPTO_CAST6 is not set
+# CONFIG_CRYPTO_DES is not set
+# CONFIG_CRYPTO_FCRYPT is not set
+# CONFIG_CRYPTO_KHAZAD is not set
+# CONFIG_CRYPTO_SALSA20 is not set
+# CONFIG_CRYPTO_CHACHA20 is not set
+# CONFIG_CRYPTO_SEED is not set
+# CONFIG_CRYPTO_SERPENT is not set
+# CONFIG_CRYPTO_SM4 is not set
+# CONFIG_CRYPTO_TEA is not set
+# CONFIG_CRYPTO_TWOFISH is not set
+
+#
+# Compression
+#
+# CONFIG_CRYPTO_DEFLATE is not set
+# CONFIG_CRYPTO_LZO is not set
+# CONFIG_CRYPTO_842 is not set
+# CONFIG_CRYPTO_LZ4 is not set
+# CONFIG_CRYPTO_LZ4HC is not set
+# CONFIG_CRYPTO_ZSTD is not set
+
+#
+# Random Number Generation
+#
+# CONFIG_CRYPTO_ANSI_CPRNG is not set
+# CONFIG_CRYPTO_DRBG_MENU is not set
+# CONFIG_CRYPTO_JITTERENTROPY is not set
+
+#
+# Crypto library routines
+#
+# CONFIG_CRYPTO_LIB_BLAKE2S is not set
+# CONFIG_CRYPTO_LIB_CHACHA is not set
+# CONFIG_CRYPTO_LIB_CURVE25519 is not set
+CONFIG_CRYPTO_LIB_POLY1305_RSIZE=1
+# CONFIG_CRYPTO_LIB_POLY1305 is not set
+# CONFIG_CRYPTO_LIB_CHACHA20POLY1305 is not set
+# CONFIG_CRYPTO_HW is not set
+
+#
+# Certificates for signature checking
+#
+# end of Certificates for signature checking
+
+#
+# Library routines
+#
+# CONFIG_PACKING is not set
+CONFIG_BITREVERSE=y
+CONFIG_GENERIC_STRNCPY_FROM_USER=y
+CONFIG_GENERIC_STRNLEN_USER=y
+# CONFIG_CORDIC is not set
+CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
+CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
+# CONFIG_CRC_CCITT is not set
+CONFIG_CRC16=y
+# CONFIG_CRC_T10DIF is not set
+# CONFIG_CRC_ITU_T is not set
+CONFIG_CRC32=y
+# CONFIG_CRC32_SELFTEST is not set
+CONFIG_CRC32_SLICEBY8=y
+# CONFIG_CRC32_SLICEBY4 is not set
+# CONFIG_CRC32_SARWATE is not set
+# CONFIG_CRC32_BIT is not set
+# CONFIG_CRC64 is not set
+# CONFIG_CRC4 is not set
+# CONFIG_CRC7 is not set
+# CONFIG_LIBCRC32C is not set
+# CONFIG_CRC8 is not set
+# CONFIG_RANDOM32_SELFTEST is not set
+CONFIG_ZLIB_DEFLATE=y
+CONFIG_XZ_DEC=y
+# CONFIG_XZ_DEC_X86 is not set
+CONFIG_XZ_DEC_POWERPC=y
+# CONFIG_XZ_DEC_IA64 is not set
+# CONFIG_XZ_DEC_ARM is not set
+# CONFIG_XZ_DEC_ARMTHUMB is not set
+# CONFIG_XZ_DEC_SPARC is not set
+CONFIG_XZ_DEC_BCJ=y
+# CONFIG_XZ_DEC_TEST is not set
+CONFIG_DECOMPRESS_XZ=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT_MAP=y
+CONFIG_HAS_DMA=y
+CONFIG_NEED_SG_DMA_LENGTH=y
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_ARCH_DMA_ADDR_T_64BIT=y
+CONFIG_DMA_DECLARE_COHERENT=y
+# CONFIG_DMA_API_DEBUG is not set
+CONFIG_IOMMU_HELPER=y
+# CONFIG_IRQ_POLL is not set
+CONFIG_LIBFDT=y
+CONFIG_ARCH_HAS_PMEM_API=y
+CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE=y
+CONFIG_ARCH_HAS_UACCESS_MCSAFE=y
+CONFIG_SBITMAP=y
+# CONFIG_STRING_SELFTEST is not set
+# end of Library routines
+
+#
+# Kernel hacking
+#
+
+#
+# printk and dmesg options
+#
+# CONFIG_PRINTK_TIME is not set
+# CONFIG_PRINTK_CALLER is not set
+CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
+CONFIG_CONSOLE_LOGLEVEL_QUIET=4
+CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
+# CONFIG_SYMBOLIC_ERRNAME is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
+# end of printk and dmesg options
+
+#
+# Compile-time checks and compiler options
+#
+# CONFIG_DEBUG_INFO is not set
+# CONFIG_ENABLE_MUST_CHECK is not set
+CONFIG_FRAME_WARN=2048
+# CONFIG_STRIP_ASM_SYMS is not set
+# CONFIG_READABLE_ASM is not set
+# CONFIG_HEADERS_INSTALL is not set
+CONFIG_OPTIMIZE_INLINING=y
+# CONFIG_DEBUG_SECTION_MISMATCH is not set
+CONFIG_SECTION_MISMATCH_WARN_ONLY=y
+# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
+# end of Compile-time checks and compiler options
+
+#
+# Generic Kernel Debugging Instruments
+#
+# CONFIG_MAGIC_SYSRQ is not set
+# CONFIG_DEBUG_FS is not set
+CONFIG_HAVE_ARCH_KGDB=y
+# CONFIG_KGDB is not set
+CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y
+# CONFIG_UBSAN is not set
+CONFIG_UBSAN_ALIGNMENT=y
+# end of Generic Kernel Debugging Instruments
+
+CONFIG_DEBUG_KERNEL=y
+# CONFIG_DEBUG_MISC is not set
+
+#
+# Memory Debugging
+#
+# CONFIG_PAGE_EXTENSION is not set
+# CONFIG_DEBUG_PAGEALLOC is not set
+# CONFIG_PAGE_OWNER is not set
+# CONFIG_PAGE_POISONING is not set
+# CONFIG_DEBUG_OBJECTS is not set
+# CONFIG_SLUB_STATS is not set
+CONFIG_HAVE_DEBUG_KMEMLEAK=y
+# CONFIG_DEBUG_KMEMLEAK is not set
+# CONFIG_DEBUG_STACK_USAGE is not set
+# CONFIG_SCHED_STACK_END_CHECK is not set
+# CONFIG_DEBUG_VM is not set
+CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
+# CONFIG_DEBUG_VIRTUAL is not set
+# CONFIG_DEBUG_MEMORY_INIT is not set
+CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
+# CONFIG_DEBUG_STACKOVERFLOW is not set
+CONFIG_CC_HAS_KASAN_GENERIC=y
+CONFIG_KASAN_STACK=1
+# end of Memory Debugging
+
+# CONFIG_DEBUG_SHIRQ is not set
+
+#
+# Debug Oops, Lockups and Hangs
+#
+# CONFIG_PANIC_ON_OOPS is not set
+CONFIG_PANIC_ON_OOPS_VALUE=0
+# CONFIG_SOFTLOCKUP_DETECTOR is not set
+# CONFIG_HARDLOCKUP_DETECTOR is not set
+# CONFIG_DETECT_HUNG_TASK is not set
+# CONFIG_WQ_WATCHDOG is not set
+# end of Debug Oops, Lockups and Hangs
+
+#
+# Scheduler Debugging
+#
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_SCHEDSTATS is not set
+# end of Scheduler Debugging
+
+# CONFIG_DEBUG_TIMEKEEPING is not set
+
+#
+# Lock Debugging (spinlocks, mutexes, etc...)
+#
+CONFIG_LOCK_DEBUGGING_SUPPORT=y
+# CONFIG_PROVE_LOCKING is not set
+# CONFIG_LOCK_STAT is not set
+# CONFIG_DEBUG_RT_MUTEXES is not set
+# CONFIG_DEBUG_SPINLOCK is not set
+# CONFIG_DEBUG_MUTEXES is not set
+# CONFIG_DEBUG_WW_MUTEX_SLOWPATH is not set
+# CONFIG_DEBUG_RWSEMS is not set
+# CONFIG_DEBUG_LOCK_ALLOC is not set
+# CONFIG_DEBUG_ATOMIC_SLEEP is not set
+# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
+# CONFIG_LOCK_TORTURE_TEST is not set
+# CONFIG_WW_MUTEX_SELFTEST is not set
+# end of Lock Debugging (spinlocks, mutexes, etc...)
+
+# CONFIG_STACKTRACE is not set
+# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set
+# CONFIG_DEBUG_KOBJECT is not set
+
+#
+# Debug kernel data structures
+#
+# CONFIG_DEBUG_LIST is not set
+# CONFIG_DEBUG_PLIST is not set
+# CONFIG_DEBUG_SG is not set
+# CONFIG_DEBUG_NOTIFIERS is not set
+# CONFIG_BUG_ON_DATA_CORRUPTION is not set
+# end of Debug kernel data structures
+
+# CONFIG_DEBUG_CREDENTIALS is not set
+
+#
+# RCU Debugging
+#
+# CONFIG_RCU_PERF_TEST is not set
+# CONFIG_RCU_TORTURE_TEST is not set
+# CONFIG_RCU_TRACE is not set
+# CONFIG_RCU_EQS_DEBUG is not set
+# end of RCU Debugging
+
+# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
+# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
+# CONFIG_LATENCYTOP is not set
+CONFIG_HAVE_FUNCTION_TRACER=y
+CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
+CONFIG_HAVE_DYNAMIC_FTRACE=y
+CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
+CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
+CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
+CONFIG_HAVE_C_RECORDMCOUNT=y
+CONFIG_TRACING_SUPPORT=y
+# CONFIG_FTRACE is not set
+# CONFIG_SAMPLES is not set
+CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
+# CONFIG_STRICT_DEVMEM is not set
+
+#
+# powerpc Debugging
+#
+CONFIG_PPC_DISABLE_WERROR=y
+CONFIG_PRINT_STACK_DEPTH=64
+# CONFIG_CODE_PATCHING_SELFTEST is not set
+# CONFIG_FTR_FIXUP_SELFTEST is not set
+# CONFIG_MSI_BITMAP_SELFTEST is not set
+# CONFIG_PPC_IRQ_SOFT_MASK_DEBUG is not set
+CONFIG_XMON=y
+CONFIG_XMON_DEFAULT=y
+CONFIG_XMON_DISASSEMBLY=y
+# CONFIG_XMON_DEFAULT_RO_MODE is not set
+CONFIG_DEBUGGER=y
+# CONFIG_BOOTX_TEXT is not set
+CONFIG_PPC_EARLY_DEBUG=y
+# CONFIG_PPC_EARLY_DEBUG_MEMCONS is not set
+CONFIG_PPC_EARLY_DEBUG_MICROWATT=y
+# CONFIG_PPC_FAST_ENDIAN_SWITCH is not set
+# end of powerpc Debugging
+
+#
+# Kernel Testing and Coverage
+#
+# CONFIG_KUNIT is not set
+# CONFIG_NOTIFIER_ERROR_INJECTION is not set
+# CONFIG_FAULT_INJECTION is not set
+CONFIG_ARCH_HAS_KCOV=y
+CONFIG_CC_HAS_SANCOV_TRACE_PC=y
+# CONFIG_KCOV is not set
+# CONFIG_RUNTIME_TESTING_MENU is not set
+# CONFIG_MEMTEST is not set
+# end of Kernel Testing and Coverage
+# end of Kernel hacking
diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
index 1f8025383caa..5b701acc6afa 100644
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -20,6 +20,7 @@ source "arch/powerpc/platforms/embedded6xx/Kconfig"
source "arch/powerpc/platforms/44x/Kconfig"
source "arch/powerpc/platforms/40x/Kconfig"
source "arch/powerpc/platforms/amigaone/Kconfig"
+source "arch/powerpc/platforms/microwatt/Kconfig"
config KVM_GUEST
bool "KVM Guest support"
diff --git a/arch/powerpc/platforms/Makefile b/arch/powerpc/platforms/Makefile
index 143d4417f6cc..edcb54cdb1a8 100644
--- a/arch/powerpc/platforms/Makefile
+++ b/arch/powerpc/platforms/Makefile
@@ -22,3 +22,4 @@ obj-$(CONFIG_PPC_CELL) += cell/
obj-$(CONFIG_PPC_PS3) += ps3/
obj-$(CONFIG_EMBEDDED6xx) += embedded6xx/
obj-$(CONFIG_AMIGAONE) += amigaone/
+obj-$(CONFIG_PPC_MICROWATT) += microwatt/
diff --git a/arch/powerpc/platforms/microwatt/Kconfig b/arch/powerpc/platforms/microwatt/Kconfig
new file mode 100644
index 000000000000..981f722ae9ce
--- /dev/null
+++ b/arch/powerpc/platforms/microwatt/Kconfig
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+config PPC_MICROWATT
+ depends on PPC64 && PPC_BOOK3S
+ bool "Microwatt SoC platform"
+ select PPC_XICS
+ select PPC_NATIVE
+ help
+ This option enables support for FPGA-based Microwatt implementations.
+
diff --git a/arch/powerpc/platforms/microwatt/Makefile b/arch/powerpc/platforms/microwatt/Makefile
new file mode 100644
index 000000000000..e6885b3b2ee7
--- /dev/null
+++ b/arch/powerpc/platforms/microwatt/Makefile
@@ -0,0 +1 @@
+obj-y += setup.o
diff --git a/arch/powerpc/platforms/microwatt/setup.c b/arch/powerpc/platforms/microwatt/setup.c
new file mode 100644
index 000000000000..3cfc5955a6fe
--- /dev/null
+++ b/arch/powerpc/platforms/microwatt/setup.c
@@ -0,0 +1,40 @@
+/*
+ * Microwatt FPGA-based SoC platform setup code.
+ *
+ * Copyright 2020 Paul Mackerras (paulus@ozlabs.org), IBM Corp.
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/stddef.h>
+#include <linux/init.h>
+#include <linux/of.h>
+#include <asm/machdep.h>
+#include <asm/time.h>
+
+static void __init microwatt_calibrate_decr(void)
+{
+ ppc_tb_freq = 100000000;
+ ppc_proc_freq = 100000000;
+}
+
+static void __init microwatt_setup_arch(void)
+{
+}
+
+static void __init microwatt_init_IRQ(void)
+{
+}
+
+static int __init microwatt_probe(void)
+{
+ return of_machine_is_compatible("microwatt-soc");
+}
+
+define_machine(microwatt) {
+ .name = "microwatt",
+ .probe = microwatt_probe,
+ .setup_arch = microwatt_setup_arch,
+ .init_IRQ = microwatt_init_IRQ,
+ .calibrate_decr = microwatt_calibrate_decr,
+};
--
2.25.3
^ permalink raw reply related
* Re: [PATCH v4 04/16] powerpc/64s/exceptions: machine check reconcile irq state
From: Nicholas Piggin @ 2020-05-09 7:48 UTC (permalink / raw)
To: linuxppc-dev, Michael Ellerman
In-Reply-To: <878si2czrc.fsf@mpe.ellerman.id.au>
Excerpts from Michael Ellerman's message of May 8, 2020 11:39 pm:
> Nicholas Piggin <npiggin@gmail.com> writes:
>
>> pseries fwnmi machine check code pops the soft-irq checks in rtas_call
>> (after the previous patch to remove rtas_token from this call path).
> ^
> I changed this to "next" which I think is what you meant?
Yes I rearranged them, so yes.
Thanks,
Nick
^ permalink raw reply
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