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Re: [PATCH] target/i386: fix CPUID check for LFENCE and SFENCE


From: Richard Henderson
Subject: Re: [PATCH] target/i386: fix CPUID check for LFENCE and SFENCE
Date: Tue, 22 Oct 2024 07:38:10 -0700
User-agent: Mozilla Thunderbird

On 10/21/24 22:59, Paolo Bonzini wrote:
LFENCE and SFENCE were introduced with the original SSE instruction set;
marking them incorrectly as cpuid(SSE2) causes failures for CPU models
that lack SSE2, for example pentium3.

Reported-by: Guenter Roeck<linux@roeck-us.net>
Tested-by: Guenter Roeck<linux@roeck-us.net>
Cc:qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini<pbonzini@redhat.com>
---
  target/i386/tcg/decode-new.c.inc | 4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~



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