AMD future CPUs expose a mechanism to tell the guest that the Speculative Store Bypass Disable is not needed and that the CPU is all good. This is exposed via the CPUID 8000_0008.EBX[26] bit. See 124441_AMD64_SpeculativeStoreBypassDisable_Whitepaper_final.pdf A copy of this document is available at https://bugzilla.kernel.org/show_bug.cgi?id=199889 Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> --- target/i386/cpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index f91990c..43b1532 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -490,7 +490,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = { "ibpb", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - "amd-ssbd", "virt-ssbd", NULL, NULL, + "amd-ssbd", "virt-ssbd", "amd-no-ssb", NULL, NULL, NULL, NULL, NULL, }, .cpuid_eax = 0x80000008, -- 1.8.3.1