From 5ab639141b6d916a6f4041d4ec46f2f1a1e4a365 Mon Sep 17 00:00:00 2001 From: Xiaoyao Li Date: Wed, 14 Aug 2024 03:54:27 -0400 Subject: [PATCH] target/i386: Construct CPUID 2 as stateful iff times > 1 When times == 1, the CPUID leaf 2 is not stateful. Signed-off-by: Xiaoyao Li Link: https://lore.kernel.org/r/20240814075431.339209-6-xiaoyao.li@intel.com Signed-off-by: Paolo Bonzini --- target/i386/kvm/kvm.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index 6f6301460d..77e8816570 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -1838,10 +1838,12 @@ static uint32_t kvm_x86_build_cpuid(CPUX86State *env, int times; c->function = i; - c->flags = KVM_CPUID_FLAG_STATEFUL_FUNC | - KVM_CPUID_FLAG_STATE_READ_NEXT; cpu_x86_cpuid(env, i, 0, &c->eax, &c->ebx, &c->ecx, &c->edx); times = c->eax & 0xff; + if (times > 1) { + c->flags = KVM_CPUID_FLAG_STATEFUL_FUNC | + KVM_CPUID_FLAG_STATE_READ_NEXT; + } for (j = 1; j < times; ++j) { if (cpuid_i == KVM_MAX_CPUID_ENTRIES) {