From d84f1cff9028c00ee870f0293b0c7a3866071dfa Mon Sep 17 00:00:00 2001 From: Drew Schmitt <dasch@google.com> Date: Mon, 20 Aug 2018 10:32:14 -0700 Subject: [PATCH] KVM: x86: Turbo bits in MSR_PLATFORM_INFO Allow userspace to set turbo bits in MSR_PLATFORM_INFO. Previously, only the CPUID faulting bit was settable. But now any bit in MSR_PLATFORM_INFO would be settable. This can be used, for example, to convey frequency information about the platform on which the guest is running. Signed-off-by: Drew Schmitt <dasch@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> --- arch/x86/kvm/x86.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 5fea53cdc5831..e127703e277e6 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2537,7 +2537,6 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) break; case MSR_PLATFORM_INFO: if (!msr_info->host_initiated || - data & ~MSR_PLATFORM_INFO_CPUID_FAULT || (!(data & MSR_PLATFORM_INFO_CPUID_FAULT) && cpuid_fault_enabled(vcpu))) return 1; -- GitLab