Messages in this thread | | | Date | Thu, 24 Sep 2015 12:12:28 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH] KVM: x86: fix bogus warning about reserved bits |
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On Thu, Sep 24, 2015 at 11:23:08AM +0800, Xiao Guangrong wrote: > >+static inline bool > >+boot_cpu_is_amd(void) > >+{ > >+ WARN_ON_ONCE(!tdp_enabled); > >+ return shadow_x_mask != 0; > > shadow_x_mask != 0 is Intel's CPU. > > Borislav, could you please check shadow_x_mask == 0 instead and test it again?
That did the trick:
[ 62.640392] kvm: zapping shadow pages for mmio generation wraparound [ 63.100301] cpuid(0).ebx = 68747541 [ 63.193426] kvm [3748]: vcpu0 unhandled rdmsr: 0xc0010112 [ 64.538294] kvm [3748]: vcpu0 unhandled rdmsr: 0xc0011021 [ 64.866263] kvm [3748]: vcpu1 unhandled rdmsr: 0xc0011021 [ 64.971972] kvm [3748]: vcpu2 unhandled rdmsr: 0xc0011021 [ 65.070376] kvm [3748]: vcpu3 unhandled rdmsr: 0xc0011021 [ 65.170625] kvm [3748]: vcpu4 unhandled rdmsr: 0xc0011021 [ 65.272838] kvm [3748]: vcpu5 unhandled rdmsr: 0xc0011021 [ 65.374288] kvm [3748]: vcpu6 unhandled rdmsr: 0xc0011021 [ 65.474825] kvm [3748]: vcpu7 unhandled rdmsr: 0xc0011021
That's all I got in dmesg from booting the guest - no more mmio PF warnings.
Thanks.
-- Regards/Gruss, Boris.
ECO tip #101: Trim your mails when you reply.
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