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[PATCH v4 02/16] accel/tcg: Fix check for page writeability in load_atom
From: |
Richard Henderson |
Subject: |
[PATCH v4 02/16] accel/tcg: Fix check for page writeability in load_atomic16_or_exit |
Date: |
Thu, 25 May 2023 17:23:20 -0700 |
PAGE_WRITE is current writability, as modified by TB protection;
PAGE_WRITE_ORG is the original page writability.
Fixes: cdfac37be0d ("accel/tcg: Honor atomicity of loads")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
accel/tcg/ldst_atomicity.c.inc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/accel/tcg/ldst_atomicity.c.inc b/accel/tcg/ldst_atomicity.c.inc
index 0f6b3f8ab6..57163f5ca2 100644
--- a/accel/tcg/ldst_atomicity.c.inc
+++ b/accel/tcg/ldst_atomicity.c.inc
@@ -191,7 +191,7 @@ static Int128 load_atomic16_or_exit(CPUArchState *env,
uintptr_t ra, void *pv)
* another process, because the fallback start_exclusive solution
* provides no protection across processes.
*/
- if (!page_check_range(h2g(p), 16, PAGE_WRITE)) {
+ if (!page_check_range(h2g(p), 16, PAGE_WRITE_ORG)) {
return *p;
}
#endif
--
2.34.1
- [PATCH v4 00/16] tcg: Improvements to atomic128, Richard Henderson, 2023/05/25
- [PATCH v4 02/16] accel/tcg: Fix check for page writeability in load_atomic16_or_exit,
Richard Henderson <=
- Re: [PATCH v4 02/16] accel/tcg: Fix check for page writeability in load_atomic16_or_exit, Peter Maydell, 2023/05/30
- Re: [PATCH v4 02/16] accel/tcg: Fix check for page writeability in load_atomic16_or_exit, Richard Henderson, 2023/05/30
- Re: [PATCH v4 02/16] accel/tcg: Fix check for page writeability in load_atomic16_or_exit, Peter Maydell, 2023/05/30
- Re: [PATCH v4 02/16] accel/tcg: Fix check for page writeability in load_atomic16_or_exit, Richard Henderson, 2023/05/30
- Re: [PATCH v4 02/16] accel/tcg: Fix check for page writeability in load_atomic16_or_exit, Peter Maydell, 2023/05/30
- Re: [PATCH v4 02/16] accel/tcg: Fix check for page writeability in load_atomic16_or_exit, Richard Henderson, 2023/05/30
- Re: [PATCH v4 02/16] accel/tcg: Fix check for page writeability in load_atomic16_or_exit, Peter Maydell, 2023/05/30
[PATCH v4 01/16] tcg: Fix register move type in tcg_out_ld_helper_ret, Richard Henderson, 2023/05/25
[PATCH v4 03/16] meson: Split test for __int128_t type from __int128_t arithmetic, Richard Henderson, 2023/05/25