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[PATCH v7 21/25] target/riscv: Suppress pte update with is_debug
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From: |
Richard Henderson |
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Subject: |
[PATCH v7 21/25] target/riscv: Suppress pte update with is_debug |
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Date: |
Wed, 12 Apr 2023 13:43:29 +0200 |
The debugger should not modify PTE_A or PTE_D.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn>
Tested-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-Id: <20230325105429.1142530-22-richard.henderson@linaro.org>
---
target/riscv/cpu_helper.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c
index c2d083f029..6dc3fdf594 100644
--- a/target/riscv/cpu_helper.c
+++ b/target/riscv/cpu_helper.c
@@ -1001,7 +1001,7 @@ restart:
(access_type == MMU_DATA_STORE ? PTE_D : 0);
/* Page table updates need to be atomic with MTTCG enabled */
- if (updated_pte != pte) {
+ if (updated_pte != pte && !is_debug) {
if (!hade) {
return TRANSLATE_FAIL;
}
--
2.34.1
- [PATCH v7 02/25] target/riscv: Add a general status enum for extensions, (continued)
- [PATCH v7 02/25] target/riscv: Add a general status enum for extensions, Richard Henderson, 2023/04/12
- [PATCH v7 05/25] target/riscv: Add a tb flags field for vstart, Richard Henderson, 2023/04/12
- [PATCH v7 07/25] target/riscv: Reduce overhead of MSTATUS_SUM change, Richard Henderson, 2023/04/12
- [PATCH v7 09/25] target/riscv: Use cpu_ld*_code_mmu for HLVX, Richard Henderson, 2023/04/12
- [PATCH v7 11/25] target/riscv: Rename MMU_HYP_ACCESS_BIT to MMU_2STAGE_BIT, Richard Henderson, 2023/04/12
- [PATCH v7 15/25] target/riscv: Move hstatus.spvp check to check_access_hlsv, Richard Henderson, 2023/04/12
- [PATCH v7 19/25] target/riscv: Hoist pbmte and hade out of the level loop, Richard Henderson, 2023/04/12
- [PATCH v7 16/25] target/riscv: Set MMU_2STAGE_BIT in riscv_cpu_mmu_index, Richard Henderson, 2023/04/12
- [PATCH v7 17/25] target/riscv: Check SUM in the correct register, Richard Henderson, 2023/04/12
- [PATCH v7 18/25] target/riscv: Hoist second stage mode change to callers, Richard Henderson, 2023/04/12
- [PATCH v7 21/25] target/riscv: Suppress pte update with is_debug,
Richard Henderson <=
- [PATCH v7 22/25] target/riscv: Don't modify SUM with is_debug, Richard Henderson, 2023/04/12
- [PATCH v7 24/25] target/riscv: Reorg access check in get_physical_address, Richard Henderson, 2023/04/12
- [PATCH v7 20/25] target/riscv: Move leaf pte processing out of level loop, Richard Henderson, 2023/04/12
- [PATCH v7 23/25] target/riscv: Merge checks for reserved pte flags, Richard Henderson, 2023/04/12
- [PATCH v7 25/25] target/riscv: Reorg sum check in get_physical_address, Richard Henderson, 2023/04/12
- Re: [PATCH v7 00/25] target/riscv: MSTATUS_SUM + cleanups, Alistair Francis, 2023/04/16