From: Maxim Levitsky Date: Mon, 7 Feb 2022 15:54:21 +0000 (+0200) Subject: KVM: x86: nSVM/nVMX: set nested_run_pending on VM entry which is a result of RSM X-Git-Tag: accepted/tizen/unified/20230118.172025~2305 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=cd14c7342df5fadde692edb414b971fd4f6c4df4;p=platform%2Fkernel%2Flinux-rpi.git KVM: x86: nSVM/nVMX: set nested_run_pending on VM entry which is a result of RSM commit 759cbd59674a6c0aec616a3f4f0740ebd3f5fbef upstream. While RSM induced VM entries are not full VM entries, they still need to be followed by actual VM entry to complete it, unlike setting the nested state. This patch fixes boot of hyperv and SMM enabled windows VM running nested on KVM, which fail due to this issue combined with lack of dirty bit setting. Signed-off-by: Maxim Levitsky Cc: stable@vger.kernel.org Message-Id: <20220207155447.840194-5-mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini Signed-off-by: Greg Kroah-Hartman --- diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index f05aa72..a8a6618 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -4388,6 +4388,11 @@ static int svm_leave_smm(struct kvm_vcpu *vcpu, const char *smstate) nested_load_control_from_vmcb12(svm, &vmcb12->control); ret = enter_svm_guest_mode(vcpu, vmcb12_gpa, vmcb12, false); + if (ret) + goto unmap_save; + + svm->nested.nested_run_pending = 1; + unmap_save: kvm_vcpu_unmap(vcpu, &map_save, true); unmap_map: diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 44da933..322485a 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -7532,6 +7532,7 @@ static int vmx_leave_smm(struct kvm_vcpu *vcpu, const char *smstate) if (ret) return ret; + vmx->nested.nested_run_pending = 1; vmx->nested.smm.guest_mode = false; } return 0;