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[PULL 12/16] target/i386: fix incorrect EIP in PC-relative translation b
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From: |
Paolo Bonzini |
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Subject: |
[PULL 12/16] target/i386: fix incorrect EIP in PC-relative translation blocks |
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Date: |
Thu, 18 Jan 2024 13:24:12 +0100 |
From: guoguangyao <guoguangyao18@mails.ucas.ac.cn>
The PCREL patches introduced a bug when updating EIP in the !CF_PCREL case.
Using s->pc in func gen_update_eip_next() solves the problem.
Cc: qemu-stable@nongnu.org
Fixes: b5e0d5d22fbf ("target/i386: Fix 32-bit wrapping of pc/eip computation")
Signed-off-by: guoguangyao <guoguangyao18@mails.ucas.ac.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240115020804.30272-1-guoguangyao18@mails.ucas.ac.cn>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
target/i386/tcg/translate.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index d4d7e904adb..cadf13bce43 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -567,9 +567,9 @@ static void gen_update_eip_next(DisasContext *s)
if (tb_cflags(s->base.tb) & CF_PCREL) {
tcg_gen_addi_tl(cpu_eip, cpu_eip, s->pc - s->pc_save);
} else if (CODE64(s)) {
- tcg_gen_movi_tl(cpu_eip, s->base.pc_next);
+ tcg_gen_movi_tl(cpu_eip, s->pc);
} else {
- tcg_gen_movi_tl(cpu_eip, (uint32_t)(s->base.pc_next - s->cs_base));
+ tcg_gen_movi_tl(cpu_eip, (uint32_t)(s->pc - s->cs_base));
}
s->pc_save = s->pc;
}
--
2.43.0
- [PULL 03/16] vga: mask addresses in non-VESA modes to 256k, (continued)
- [PULL 03/16] vga: mask addresses in non-VESA modes to 256k, Paolo Bonzini, 2024/01/18
- [PULL 06/16] vga: reindent memory access code, Paolo Bonzini, 2024/01/18
- [PULL 07/16] vga: use latches in odd/even mode too, Paolo Bonzini, 2024/01/18
- [PULL 05/16] vga: optimize horizontal pel panning in 256-color modes, Paolo Bonzini, 2024/01/18
- [PULL 09/16] Add class property to configure KVM device node to use, Paolo Bonzini, 2024/01/18
- [PULL 10/16] io_uring: move LuringState typedef to block/aio.h, Paolo Bonzini, 2024/01/18
- [PULL 13/16] target/i386: pcrel: store low bits of physical address in data[0], Paolo Bonzini, 2024/01/18
- [PULL 11/16] target/i386: Do not re-compute new pc with CF_PCREL, Paolo Bonzini, 2024/01/18
- [PULL 15/16] qemu/osdep: Add huge page aligned support on LoongArch platform, Paolo Bonzini, 2024/01/18
- [PULL 16/16] tests/tcg: Don't #include <inttypes.h> in aarch64/system/vtimer.c, Paolo Bonzini, 2024/01/18
- [PULL 12/16] target/i386: fix incorrect EIP in PC-relative translation blocks,
Paolo Bonzini <=
- [PULL 08/16] vga: sort-of implement word and double-word access modes, Paolo Bonzini, 2024/01/18
- [PULL 14/16] remove unnecessary casts from uintptr_t, Paolo Bonzini, 2024/01/18
- [PULL 04/16] vga: implement horizontal pel panning in graphics modes, Paolo Bonzini, 2024/01/18
- Re: [PULL 00/16] VGA, x86 TCG, misc changes for 2024-01-18, Peter Maydell, 2024/01/19