From: Alistair Francis <alistair.francis@opensource.wdc.com>
To: qemu-devel@nongnu.org
Cc: alistair23@gmail.com, LIU Zhiwei <zhiwei_liu@c-sky.com>,
Richard Henderson <richard.henderson@linaro.org>,
Alistair Francis <alistair.francis@wdc.com>
Subject: [PULL 46/61] target/riscv: Use gdb xml according to max mxlen
Date: Fri, 21 Jan 2022 15:58:15 +1000 [thread overview]
Message-ID: <20220121055830.3164408-47-alistair.francis@opensource.wdc.com> (raw)
In-Reply-To: <20220121055830.3164408-1-alistair.francis@opensource.wdc.com>
From: LIU Zhiwei <zhiwei_liu@c-sky.com>
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20220120122050.41546-9-zhiwei_liu@c-sky.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
---
target/riscv/cpu.c | 8 ++---
target/riscv/gdbstub.c | 71 +++++++++++++++++++++++++++++++-----------
2 files changed, 55 insertions(+), 24 deletions(-)
diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index eac5f7bf03..690c879901 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -466,6 +466,7 @@ static void riscv_cpu_realize(DeviceState *dev, Error **errp)
RISCVCPU *cpu = RISCV_CPU(dev);
CPURISCVState *env = &cpu->env;
RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(dev);
+ CPUClass *cc = CPU_CLASS(mcc);
int priv_version = 0;
Error *local_err = NULL;
@@ -516,11 +517,13 @@ static void riscv_cpu_realize(DeviceState *dev, Error **errp)
switch (env->misa_mxl_max) {
#ifdef TARGET_RISCV64
case MXL_RV64:
+ cc->gdb_core_xml_file = "riscv-64bit-cpu.xml";
break;
case MXL_RV128:
break;
#endif
case MXL_RV32:
+ cc->gdb_core_xml_file = "riscv-32bit-cpu.xml";
break;
default:
g_assert_not_reached();
@@ -802,11 +805,6 @@ static void riscv_cpu_class_init(ObjectClass *c, void *data)
cc->gdb_read_register = riscv_cpu_gdb_read_register;
cc->gdb_write_register = riscv_cpu_gdb_write_register;
cc->gdb_num_core_regs = 33;
-#if defined(TARGET_RISCV32)
- cc->gdb_core_xml_file = "riscv-32bit-cpu.xml";
-#elif defined(TARGET_RISCV64)
- cc->gdb_core_xml_file = "riscv-64bit-cpu.xml";
-#endif
cc->gdb_stop_before_watchpoint = true;
cc->disas_set_info = riscv_cpu_disas_set_info;
#ifndef CONFIG_USER_ONLY
diff --git a/target/riscv/gdbstub.c b/target/riscv/gdbstub.c
index a5429b92d4..f531a74c2f 100644
--- a/target/riscv/gdbstub.c
+++ b/target/riscv/gdbstub.c
@@ -50,11 +50,23 @@ int riscv_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n)
{
RISCVCPU *cpu = RISCV_CPU(cs);
CPURISCVState *env = &cpu->env;
+ target_ulong tmp;
if (n < 32) {
- return gdb_get_regl(mem_buf, env->gpr[n]);
+ tmp = env->gpr[n];
} else if (n == 32) {
- return gdb_get_regl(mem_buf, env->pc);
+ tmp = env->pc;
+ } else {
+ return 0;
+ }
+
+ switch (env->misa_mxl_max) {
+ case MXL_RV32:
+ return gdb_get_reg32(mem_buf, tmp);
+ case MXL_RV64:
+ return gdb_get_reg64(mem_buf, tmp);
+ default:
+ g_assert_not_reached();
}
return 0;
}
@@ -63,18 +75,32 @@ int riscv_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
{
RISCVCPU *cpu = RISCV_CPU(cs);
CPURISCVState *env = &cpu->env;
-
- if (n == 0) {
- /* discard writes to x0 */
- return sizeof(target_ulong);
- } else if (n < 32) {
- env->gpr[n] = ldtul_p(mem_buf);
- return sizeof(target_ulong);
+ int length = 0;
+ target_ulong tmp;
+
+ switch (env->misa_mxl_max) {
+ case MXL_RV32:
+ tmp = (int32_t)ldl_p(mem_buf);
+ length = 4;
+ break;
+ case MXL_RV64:
+ if (env->xl < MXL_RV64) {
+ tmp = (int32_t)ldq_p(mem_buf);
+ } else {
+ tmp = ldq_p(mem_buf);
+ }
+ length = 8;
+ break;
+ default:
+ g_assert_not_reached();
+ }
+ if (n > 0 && n < 32) {
+ env->gpr[n] = tmp;
} else if (n == 32) {
- env->pc = ldtul_p(mem_buf);
- return sizeof(target_ulong);
+ env->pc = tmp;
}
- return 0;
+
+ return length;
}
static int riscv_gdb_get_fpu(CPURISCVState *env, GByteArray *buf, int n)
@@ -387,13 +413,20 @@ void riscv_cpu_register_gdb_regs_for_features(CPUState *cs)
cs->gdb_num_regs),
"riscv-vector.xml", 0);
}
-#if defined(TARGET_RISCV32)
- gdb_register_coprocessor(cs, riscv_gdb_get_virtual, riscv_gdb_set_virtual,
- 1, "riscv-32bit-virtual.xml", 0);
-#elif defined(TARGET_RISCV64)
- gdb_register_coprocessor(cs, riscv_gdb_get_virtual, riscv_gdb_set_virtual,
- 1, "riscv-64bit-virtual.xml", 0);
-#endif
+ switch (env->misa_mxl_max) {
+ case MXL_RV32:
+ gdb_register_coprocessor(cs, riscv_gdb_get_virtual,
+ riscv_gdb_set_virtual,
+ 1, "riscv-32bit-virtual.xml", 0);
+ break;
+ case MXL_RV64:
+ gdb_register_coprocessor(cs, riscv_gdb_get_virtual,
+ riscv_gdb_set_virtual,
+ 1, "riscv-64bit-virtual.xml", 0);
+ break;
+ default:
+ g_assert_not_reached();
+ }
gdb_register_coprocessor(cs, riscv_gdb_get_csr, riscv_gdb_set_csr,
riscv_gen_dynamic_csr_xml(cs, cs->gdb_num_regs),
--
2.31.1
next prev parent reply other threads:[~2022-01-21 9:22 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-21 5:57 [PULL 00/61] riscv-to-apply queue Alistair Francis
2022-01-21 5:57 ` [PULL 01/61] hw: timer: ibex_timer: Fixup reading w/o register Alistair Francis
2022-01-21 5:57 ` [PULL 02/61] riscv: opentitan: fixup plic stride len Alistair Francis
2022-01-21 5:57 ` [PULL 03/61] hw: timer: ibex_timer: update/add reg address Alistair Francis
2022-01-21 5:57 ` [PULL 04/61] update-linux-headers: Add asm-riscv/kvm.h Alistair Francis
2022-01-21 5:57 ` [PULL 05/61] target/riscv: Add target/riscv/kvm.c to place the public kvm interface Alistair Francis
2022-01-21 5:57 ` [PULL 06/61] target/riscv: Implement function kvm_arch_init_vcpu Alistair Francis
2022-01-21 5:57 ` [PULL 07/61] target/riscv: Implement kvm_arch_get_registers Alistair Francis
2022-01-21 5:57 ` [PULL 08/61] target/riscv: Implement kvm_arch_put_registers Alistair Francis
2022-01-21 5:57 ` [PULL 09/61] target/riscv: Support start kernel directly by KVM Alistair Francis
2022-01-21 5:57 ` [PULL 10/61] target/riscv: Support setting external interrupt " Alistair Francis
2022-01-21 5:57 ` [PULL 11/61] target/riscv: Handle KVM_EXIT_RISCV_SBI exit Alistair Francis
2022-01-21 5:57 ` [PULL 12/61] target/riscv: Add host cpu type Alistair Francis
2022-01-21 5:57 ` [PULL 13/61] target/riscv: Add kvm_riscv_get/put_regs_timer Alistair Francis
2022-01-21 5:57 ` [PULL 14/61] target/riscv: Implement virtual time adjusting with vm state changing Alistair Francis
2022-01-21 5:57 ` [PULL 15/61] target/riscv: Support virtual time context synchronization Alistair Francis
2022-01-21 5:57 ` [PULL 16/61] target/riscv: enable riscv kvm accel Alistair Francis
2022-01-21 5:57 ` [PULL 17/61] softmmu/device_tree: Silence compiler warning with --enable-sanitizers Alistair Francis
2022-01-21 5:57 ` [PULL 18/61] softmmu/device_tree: Remove redundant pointer assignment Alistair Francis
2022-01-21 5:57 ` [PULL 19/61] target/riscv: rvv-1.0: Add Zve64f extension into RISC-V Alistair Francis
2022-01-21 5:57 ` [PULL 20/61] target/riscv: rvv-1.0: Add Zve64f support for configuration insns Alistair Francis
2022-01-21 5:57 ` [PULL 21/61] target/riscv: rvv-1.0: Add Zve64f support for load and store insns Alistair Francis
2022-01-21 5:57 ` [PULL 22/61] target/riscv: rvv-1.0: Add Zve64f support for vmulh variant insns Alistair Francis
2022-01-21 5:57 ` [PULL 23/61] target/riscv: rvv-1.0: Add Zve64f support for vsmul.vv and vsmul.vx insns Alistair Francis
2022-01-21 5:57 ` [PULL 24/61] target/riscv: rvv-1.0: Add Zve64f support for scalar fp insns Alistair Francis
2022-01-21 5:57 ` [PULL 25/61] target/riscv: rvv-1.0: Add Zve64f support for single-width fp reduction insns Alistair Francis
2022-01-21 5:57 ` [PULL 26/61] target/riscv: rvv-1.0: Add Zve64f support for widening type-convert insns Alistair Francis
2022-01-21 5:57 ` [PULL 27/61] target/riscv: rvv-1.0: Add Zve64f support for narrowing " Alistair Francis
2022-01-21 5:57 ` [PULL 28/61] target/riscv: rvv-1.0: Allow Zve64f extension to be turned on Alistair Francis
2022-01-21 5:57 ` [PULL 29/61] target/riscv: rvv-1.0: Add Zve32f extension into RISC-V Alistair Francis
2022-01-21 5:57 ` [PULL 30/61] target/riscv: rvv-1.0: Add Zve32f support for configuration insns Alistair Francis
2022-01-21 5:58 ` [PULL 31/61] target/riscv: rvv-1.0: Add Zve32f support for scalar fp insns Alistair Francis
2022-01-21 5:58 ` [PULL 32/61] target/riscv: rvv-1.0: Add Zve32f support for single-width fp reduction insns Alistair Francis
2022-01-21 5:58 ` [PULL 33/61] target/riscv: rvv-1.0: Add Zve32f support for widening type-convert insns Alistair Francis
2022-01-21 5:58 ` [PULL 34/61] target/riscv: rvv-1.0: Add Zve32f support for narrowing " Alistair Francis
2022-01-21 5:58 ` [PULL 35/61] target/riscv: rvv-1.0: Allow Zve32f extension to be turned on Alistair Francis
2022-01-21 5:58 ` [PULL 36/61] hw/riscv: spike: Allow using binary firmware as bios Alistair Francis
2022-01-21 5:58 ` [PULL 37/61] hw/riscv: Remove macros for ELF BIOS image names Alistair Francis
2022-01-21 5:58 ` [PULL 38/61] roms/opensbi: Remove ELF images Alistair Francis
2022-01-21 5:58 ` [PULL 39/61] target/riscv: Adjust pmpcfg access with mxl Alistair Francis
2022-01-21 5:58 ` [PULL 40/61] target/riscv: Don't save pc when exception return Alistair Francis
2022-01-21 5:58 ` [PULL 41/61] target/riscv: Sign extend link reg for jal and jalr Alistair Francis
2022-01-21 5:58 ` [PULL 42/61] target/riscv: Sign extend pc for different XLEN Alistair Francis
2022-01-21 5:58 ` [PULL 43/61] target/riscv: Create xl field in env Alistair Francis
2022-01-21 5:58 ` [PULL 44/61] target/riscv: Ignore the pc bits above XLEN Alistair Francis
2022-01-21 5:58 ` [PULL 45/61] target/riscv: Extend pc for runtime pc write Alistair Francis
2022-01-21 5:58 ` Alistair Francis [this message]
2022-01-21 5:58 ` [PULL 47/61] target/riscv: Relax debug check for pm write Alistair Francis
2022-01-21 5:58 ` [PULL 48/61] target/riscv: Adjust csr write mask with XLEN Alistair Francis
2022-01-21 5:58 ` [PULL 49/61] target/riscv: Create current pm fields in env Alistair Francis
2022-01-21 5:58 ` [PULL 50/61] target/riscv: Alloc tcg global for cur_pm[mask|base] Alistair Francis
2022-01-21 5:58 ` [PULL 51/61] target/riscv: Calculate address according to XLEN Alistair Francis
2022-01-21 5:58 ` [PULL 52/61] target/riscv: Split pm_enabled into mask and base Alistair Francis
2022-01-21 5:58 ` [PULL 53/61] target/riscv: Split out the vill from vtype Alistair Francis
2022-01-28 16:10 ` Peter Maydell
2022-02-01 2:12 ` Alistair Francis
2022-02-01 6:47 ` LIU Zhiwei
2022-01-21 5:58 ` [PULL 54/61] target/riscv: Adjust vsetvl according to XLEN Alistair Francis
2022-01-21 5:58 ` [PULL 55/61] target/riscv: Remove VILL field in VTYPE Alistair Francis
2022-01-21 5:58 ` [PULL 56/61] target/riscv: Fix check range for first fault only Alistair Francis
2022-01-21 5:58 ` [PULL 57/61] target/riscv: Adjust vector address with mask Alistair Francis
2022-01-21 5:58 ` [PULL 58/61] target/riscv: Adjust scalar reg in vector with XLEN Alistair Francis
2022-01-21 5:58 ` [PULL 59/61] target/riscv: Set default XLEN for hypervisor Alistair Francis
2022-01-21 5:58 ` [PULL 60/61] target/riscv: Enable uxl field write Alistair Francis
2022-01-21 5:58 ` [PULL 61/61] target/riscv: Relax UXL field for debugging Alistair Francis
2022-01-21 12:58 ` [PULL 00/61] riscv-to-apply queue Peter Maydell
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220121055830.3164408-47-alistair.francis@opensource.wdc.com \
--to=alistair.francis@opensource.wdc.com \
--cc=alistair.francis@wdc.com \
--cc=alistair23@gmail.com \
--cc=qemu-devel@nongnu.org \
--cc=richard.henderson@linaro.org \
--cc=zhiwei_liu@c-sky.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).