Commit de2e68c9 authored by Sebastian Andrzej Siewior's avatar Sebastian Andrzej Siewior Committed by Eduardo Habkost
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i386: correct cpu_x86_cpuid(0xd) 



Intel SDM says for CPUID function 0DH, sub-function 0:

| • ECX enumerates the size (in bytes) required by the XSAVE instruction for an
|   XSAVE area containing all the user state components supported by this
|   processor.
| • EBX enumerates the size (in bytes) required by the XSAVE instruction for an
|   XSAVE area containing all the user state components corresponding to bits
|   currently set in XCR0.

Signed-off-by: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
Message-Id: <20180928104319.3296-1-bigeasy@linutronix.de>
Reviewed-by: default avatarEduardo Habkost <ehabkost@redhat.com>
Signed-off-by: default avatarEduardo Habkost <ehabkost@redhat.com>
parent a2e002ff

target/i386/cpu.c

+1 −1
Original line number Diff line number Diff line
@@ -4178,7 +4178,7 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count, 
            *ecx = xsave_area_size(x86_cpu_xsave_components(cpu));

            *eax = env->features[FEAT_XSAVE_COMP_LO];

            *edx = env->features[FEAT_XSAVE_COMP_HI];

            *ebx = *ecx;

            *ebx = xsave_area_size(env->xcr0);

        } else if (count == 1) {

            *eax = env->features[FEAT_XSAVE];

        } else if (count < ARRAY_SIZE(x86_ext_save_areas)) {