From: Xiaoyao Li <[email protected]> Per Intel SDM vol 1, 13.2, if CPUID.1:ECX.XSAVE[bit 26] is 0, the processor provides no further enumeration through CPUID function 0DH. QEMU does not do this for "-cpu host,-xsave".
Signed-off-by: Xiaoyao Li <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]> --- target/i386/cpu.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 23e9a17a04..7eb708bedb 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -6268,6 +6268,8 @@ static void x86_cpu_enable_xsave_components(X86CPU *cpu) uint64_t mask; if (!(env->features[FEAT_1_ECX] & CPUID_EXT_XSAVE)) { + env->features[FEAT_XSAVE_COMP_LO] = 0; + env->features[FEAT_XSAVE_COMP_HI] = 0; return; } -- 2.26.2
