diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0077-KVM-SVM-Add-support-for-SEV-GUEST_STATUS-command.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0077-KVM-SVM-Add-support-for-SEV-GUEST_STATUS-command.patch | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0077-KVM-SVM-Add-support-for-SEV-GUEST_STATUS-command.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0077-KVM-SVM-Add-support-for-SEV-GUEST_STATUS-command.patch new file mode 100644 index 00000000..740567b2 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0077-KVM-SVM-Add-support-for-SEV-GUEST_STATUS-command.patch @@ -0,0 +1,82 @@ +From 9211cc7af177176a5e4f9779098eef8e063152fa Mon Sep 17 00:00:00 2001 +From: Brijesh Singh <brijesh.singh@amd.com> +Date: Mon, 4 Dec 2017 10:57:37 -0600 +Subject: [PATCH 77/95] KVM: SVM: Add support for SEV GUEST_STATUS command +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +The command is used for querying the SEV guest information. + +Cc: Thomas Gleixner <tglx@linutronix.de> +Cc: Ingo Molnar <mingo@redhat.com> +Cc: "H. Peter Anvin" <hpa@zytor.com> +Cc: Paolo Bonzini <pbonzini@redhat.com> +Cc: "Radim Krčmář" <rkrcmar@redhat.com> +Cc: Joerg Roedel <joro@8bytes.org> +Cc: Borislav Petkov <bp@suse.de> +Cc: Tom Lendacky <thomas.lendacky@amd.com> +Cc: x86@kernel.org +Cc: kvm@vger.kernel.org +Cc: linux-kernel@vger.kernel.org +Signed-off-by: Brijesh Singh <brijesh.singh@amd.com> +Reviewed-by: Borislav Petkov <bp@suse.de> +Signed-off-by: Sudheesh Mavila <sudheesh.mavila@amd.com> +--- + arch/x86/kvm/svm.c | 33 +++++++++++++++++++++++++++++++++ + 1 file changed, 33 insertions(+) + +diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c +index a597efc..f9eb8fa 100755 +--- a/arch/x86/kvm/svm.c ++++ b/arch/x86/kvm/svm.c +@@ -6239,6 +6239,36 @@ static int sev_launch_finish(struct kvm *kvm, struct kvm_sev_cmd *argp) + return ret; + } + ++static int sev_guest_status(struct kvm *kvm, struct kvm_sev_cmd *argp) ++{ ++ struct kvm_sev_info *sev = &kvm->arch.sev_info; ++ struct kvm_sev_guest_status params; ++ struct sev_data_guest_status *data; ++ int ret; ++ ++ if (!sev_guest(kvm)) ++ return -ENOTTY; ++ ++ data = kzalloc(sizeof(*data), GFP_KERNEL); ++ if (!data) ++ return -ENOMEM; ++ ++ data->handle = sev->handle; ++ ret = sev_issue_cmd(kvm, SEV_CMD_GUEST_STATUS, data, &argp->error); ++ if (ret) ++ goto e_free; ++ ++ params.policy = data->policy; ++ params.state = data->state; ++ params.handle = data->handle; ++ ++ if (copy_to_user((void __user *)(uintptr_t)argp->data, ¶ms, sizeof(params))) ++ ret = -EFAULT; ++e_free: ++ kfree(data); ++ return ret; ++} ++ + static int svm_mem_enc_op(struct kvm *kvm, void __user *argp) + { + struct kvm_sev_cmd sev_cmd; +@@ -6268,6 +6298,9 @@ static int svm_mem_enc_op(struct kvm *kvm, void __user *argp) + case KVM_SEV_LAUNCH_FINISH: + r = sev_launch_finish(kvm, &sev_cmd); + break; ++ case KVM_SEV_GUEST_STATUS: ++ r = sev_guest_status(kvm, &sev_cmd); ++ break; + default: + r = -EINVAL; + goto out; +-- +2.7.4 + |