From: Wei Huang Date: Mon, 3 Dec 2018 20:13:32 +0000 (-0600) Subject: kvm: vmx: add cpu into VMX preemption timer bug list X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=3d82c565a7a237b9dd4666f17c84dcc028d2bed5;p=linux.git kvm: vmx: add cpu into VMX preemption timer bug list This patch adds Intel "Xeon CPU E3-1220 V2", with CPUID.01H.EAX=0x000306A8, into the list of known broken CPUs which fail to support VMX preemption timer. This bug was found while running the APIC timer test of kvm-unit-test on this specific CPU, even though the errata info can't be located in the public domain for this CPU. Signed-off-by: Wei Huang Signed-off-by: Paolo Bonzini --- diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 579f4c4144d2d..ddaae1d4cd492 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -469,6 +469,8 @@ static u32 vmx_preemption_cpu_tfms[] = { /* 321324.pdf - AAK139 - D0 - Xeon 5500 */ /* 320836.pdf - AAJ124 - D0 - i7-900 Extreme and i7-900 Desktop */ 0x000106A5, + /* Xeon E3-1220 V2 */ +0x000306A8, }; static inline bool cpu_has_broken_vmx_preemption_timer(void)