Commit-ID: 2e32b7190641a184b8510d3e342400473ff1ab60 Gitweb: http://git.kernel.org/tip/2e32b7190641a184b8510d3e342400473ff1ab60 Author: Borislav Petkov <b...@suse.de> AuthorDate: Tue, 19 Feb 2013 19:33:13 +0100 Committer: H. Peter Anvin <h...@linux.intel.com> CommitDate: Tue, 19 Feb 2013 10:44:07 -0800
x86, kvm: Add MSR_AMD64_BU_CFG2 to the list of ignored MSRs The "x86, AMD: Enable WC+ memory type on family 10 processors" patch currently in -tip added a workaround for AMD F10h CPUs which #GPs my guest when booted in kvm. This is because it accesses MSR_AMD64_BU_CFG2 which is not currently ignored by kvm. Do that because this MSR is only baremetal-relevant anyway. While at it, move the ignored MSRs at the beginning of kvm_set_msr_common so that we exit then and there. Acked-by: Gleb Natapov <g...@redhat.com> Cc: Boris Ostrovsky <boris.ostrov...@oracle.com> Cc: Andre Przywara <an...@andrep.de> Cc: Marcelo Tosatti <mtosa...@redhat.com> Signed-off-by: Borislav Petkov <b...@suse.de> Link: http://lkml.kernel.org/r/1361298793-31834-2-git-send-email...@alien8.de Signed-off-by: H. Peter Anvin <h...@linux.intel.com> --- arch/x86/kvm/x86.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index c243b81..3704007 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1881,6 +1881,14 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) u64 data = msr_info->data; switch (msr) { + case MSR_AMD64_NB_CFG: + case MSR_IA32_UCODE_REV: + case MSR_IA32_UCODE_WRITE: + case MSR_VM_HSAVE_PA: + case MSR_AMD64_PATCH_LOADER: + case MSR_AMD64_BU_CFG2: + break; + case MSR_EFER: return set_efer(vcpu, data); case MSR_K7_HWCR: @@ -1900,8 +1908,6 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) return 1; } break; - case MSR_AMD64_NB_CFG: - break; case MSR_IA32_DEBUGCTLMSR: if (!data) { /* We support the non-activated case already */ @@ -1914,11 +1920,6 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) vcpu_unimpl(vcpu, "%s: MSR_IA32_DEBUGCTLMSR 0x%llx, nop\n", __func__, data); break; - case MSR_IA32_UCODE_REV: - case MSR_IA32_UCODE_WRITE: - case MSR_VM_HSAVE_PA: - case MSR_AMD64_PATCH_LOADER: - break; case 0x200 ... 0x2ff: return set_msr_mtrr(vcpu, msr, data); case MSR_IA32_APICBASE: @@ -2253,6 +2254,7 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata) case MSR_K8_INT_PENDING_MSG: case MSR_AMD64_NB_CFG: case MSR_FAM10H_MMIO_CONF_BASE: + case MSR_AMD64_BU_CFG2: data = 0; break; case MSR_P6_PERFCTR0: -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
