From: Christophe Leroy <christophe.leroy@c-s.fr>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
linux-mm@kvack.org
Subject: [PATCH v4 00/16] Enable CONFIG_VMAP_STACK on PPC32
Date: Tue, 26 Nov 2019 12:36:03 +0000 (UTC) [thread overview]
Message-ID: <cover.1574771539.git.christophe.leroy@c-s.fr> (raw)
The purpose of this serie is to enable CONFIG_VMAP_STACK on PPC32.
rfc v1: initial support on 8xx
rfc v2: added stack overflow detection.
v3:
- Stack overflow detection works, tested with LKDTM STACK_EXHAUST test
- Support for book3s32 added
v4:
- Fixed build failure with CONFIG_KVM (patch 14)
- Fixed boot failure with pmac32_defconfig+VMAP_STACK+KVM (new patch 15)
- Fixed crash with altivec and fpu (patch 16)
Christophe Leroy (16):
powerpc/32: replace MTMSRD() by mtmsr
powerpc/32: Add EXCEPTION_PROLOG_0 in head_32.h
powerpc/32: save DEAR/DAR before calling handle_page_fault
powerpc/32: move MSR_PR test into EXCEPTION_PROLOG_0
powerpc/32: add a macro to get and/or save DAR and DSISR on stack.
powerpc/32: prepare for CONFIG_VMAP_STACK
powerpc: align stack to 2 * THREAD_SIZE with VMAP_STACK
powerpc/32: Add early stack overflow detection with VMAP stack.
powerpc/8xx: Use alternative scratch registers in DTLB miss handler
powerpc/8xx: drop exception entries for non-existing exceptions
powerpc/8xx: move DataStoreTLBMiss perf handler
powerpc/8xx: split breakpoint exception
powerpc/8xx: Enable CONFIG_VMAP_STACK
powerpc/32s: reorganise DSI handler.
powerpc/32s: avoid crossing page boundary while changing SRR0/1.
powerpc/32s: Activate CONFIG_VMAP_STACK
arch/powerpc/include/asm/irq.h | 1 +
arch/powerpc/include/asm/processor.h | 6 ++
arch/powerpc/include/asm/thread_info.h | 18 ++++
arch/powerpc/kernel/asm-offsets.c | 6 ++
arch/powerpc/kernel/entry_32.S | 55 ++++++++--
arch/powerpc/kernel/fpu.S | 3 +
arch/powerpc/kernel/head_32.S | 65 ++++++++----
arch/powerpc/kernel/head_32.h | 129 ++++++++++++++++++++---
arch/powerpc/kernel/head_40x.S | 2 +
arch/powerpc/kernel/head_8xx.S | 186 +++++++++++++++------------------
arch/powerpc/kernel/head_booke.h | 2 +
arch/powerpc/kernel/head_fsl_booke.S | 1 +
arch/powerpc/kernel/irq.c | 1 +
arch/powerpc/kernel/setup_32.c | 3 +-
arch/powerpc/kernel/setup_64.c | 2 +-
arch/powerpc/kernel/traps.c | 15 ++-
arch/powerpc/kernel/vector.S | 3 +
arch/powerpc/kernel/vmlinux.lds.S | 2 +-
arch/powerpc/mm/book3s32/hash_low.S | 46 +++++---
arch/powerpc/mm/book3s32/mmu.c | 9 +-
arch/powerpc/perf/8xx-pmu.c | 12 ++-
arch/powerpc/platforms/Kconfig.cputype | 3 +
22 files changed, 393 insertions(+), 177 deletions(-)
--
2.13.3
next reply other threads:[~2019-11-26 12:36 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-26 12:36 Christophe Leroy [this message]
2019-11-26 12:36 ` [PATCH v4 01/16] powerpc/32: replace MTMSRD() by mtmsr Christophe Leroy
2019-11-26 12:36 ` [PATCH v4 02/16] powerpc/32: Add EXCEPTION_PROLOG_0 in head_32.h Christophe Leroy
2019-11-26 12:36 ` [PATCH v4 03/16] powerpc/32: save DEAR/DAR before calling handle_page_fault Christophe Leroy
2019-11-26 12:36 ` [PATCH v4 04/16] powerpc/32: move MSR_PR test into EXCEPTION_PROLOG_0 Christophe Leroy
2019-11-26 12:36 ` [PATCH v4 05/16] powerpc/32: add a macro to get and/or save DAR and DSISR on stack Christophe Leroy
2019-11-26 12:36 ` [PATCH v4 06/16] powerpc/32: prepare for CONFIG_VMAP_STACK Christophe Leroy
2019-11-26 12:36 ` [PATCH v4 07/16] powerpc: align stack to 2 * THREAD_SIZE with VMAP_STACK Christophe Leroy
2019-11-26 12:36 ` [PATCH v4 08/16] powerpc/32: Add early stack overflow detection with VMAP stack Christophe Leroy
2019-11-26 12:36 ` [PATCH v4 09/16] powerpc/8xx: Use alternative scratch registers in DTLB miss handler Christophe Leroy
2019-11-26 12:36 ` [PATCH v4 10/16] powerpc/8xx: drop exception entries for non-existing exceptions Christophe Leroy
2019-11-26 12:36 ` [PATCH v4 11/16] powerpc/8xx: move DataStoreTLBMiss perf handler Christophe Leroy
2019-11-26 12:36 ` [PATCH v4 12/16] powerpc/8xx: split breakpoint exception Christophe Leroy
2019-11-26 12:36 ` [PATCH v4 13/16] powerpc/8xx: Enable CONFIG_VMAP_STACK Christophe Leroy
2019-11-26 12:36 ` [PATCH v4 14/16] powerpc/32s: reorganise DSI handler Christophe Leroy
2019-11-26 12:36 ` [PATCH v4 15/16] powerpc/32s: avoid crossing page boundary while changing SRR0/1 Christophe Leroy
2019-11-26 12:36 ` [PATCH v4 16/16] powerpc/32s: Activate CONFIG_VMAP_STACK Christophe Leroy
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