diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0075-KVM-SVM-Add-support-for-KVM_SEV_LAUNCH_MEASURE-comma.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0075-KVM-SVM-Add-support-for-KVM_SEV_LAUNCH_MEASURE-comma.patch | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0075-KVM-SVM-Add-support-for-KVM_SEV_LAUNCH_MEASURE-comma.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0075-KVM-SVM-Add-support-for-KVM_SEV_LAUNCH_MEASURE-comma.patch deleted file mode 100644 index 2a9ccbd7..00000000 --- a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0075-KVM-SVM-Add-support-for-KVM_SEV_LAUNCH_MEASURE-comma.patch +++ /dev/null @@ -1,125 +0,0 @@ -From ff79313c254df3bc3ca79168e30a75d15e39439a Mon Sep 17 00:00:00 2001 -From: Brijesh Singh <brijesh.singh@amd.com> -Date: Mon, 4 Dec 2017 10:57:36 -0600 -Subject: [PATCH 75/95] KVM: SVM: Add support for KVM_SEV_LAUNCH_MEASURE - command -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -The command is used to retrieve the measurement of contents encrypted -through the KVM_SEV_LAUNCH_UPDATE_DATA command. - -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 | 74 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ - 1 file changed, 74 insertions(+) - -diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c -index bdc08e2..86e255b 100755 ---- a/arch/x86/kvm/svm.c -+++ b/arch/x86/kvm/svm.c -@@ -6148,6 +6148,77 @@ static int sev_launch_update_data(struct kvm *kvm, struct kvm_sev_cmd *argp) - return ret; - } - -+static int sev_launch_measure(struct kvm *kvm, struct kvm_sev_cmd *argp) -+{ -+ struct kvm_sev_info *sev = &kvm->arch.sev_info; -+ struct sev_data_launch_measure *data; -+ struct kvm_sev_launch_measure params; -+ void *blob = NULL; -+ int ret; -+ -+ if (!sev_guest(kvm)) -+ return -ENOTTY; -+ -+ if (copy_from_user(¶ms, (void __user *)(uintptr_t)argp->data, sizeof(params))) -+ return -EFAULT; -+ -+ data = kzalloc(sizeof(*data), GFP_KERNEL); -+ if (!data) -+ return -ENOMEM; -+ -+ /* User wants to query the blob length */ -+ if (!params.len) -+ goto cmd; -+ -+ if (params.uaddr) { -+ if (params.len > SEV_FW_BLOB_MAX_SIZE) { -+ ret = -EINVAL; -+ goto e_free; -+ } -+ -+ if (!access_ok(VERIFY_WRITE, params.uaddr, params.len)) { -+ ret = -EFAULT; -+ goto e_free; -+ } -+ -+ ret = -ENOMEM; -+ blob = kmalloc(params.len, GFP_KERNEL); -+ if (!blob) -+ goto e_free; -+ -+ data->address = __psp_pa(blob); -+ data->len = params.len; -+ } -+ -+cmd: -+ data->handle = sev->handle; -+ ret = sev_issue_cmd(kvm, SEV_CMD_LAUNCH_MEASURE, data, &argp->error); -+ -+ /* -+ * If we query the session length, FW responded with expected data. -+ */ -+ if (!params.len) -+ goto done; -+ -+ if (ret) -+ goto e_free_blob; -+ -+ if (blob) { -+ if (copy_to_user((void __user *)(uintptr_t)params.uaddr, blob, params.len)) -+ ret = -EFAULT; -+ } -+ -+done: -+ params.len = data->len; -+ if (copy_to_user((void __user *)(uintptr_t)argp->data, ¶ms, sizeof(params))) -+ ret = -EFAULT; -+e_free_blob: -+ kfree(blob); -+e_free: -+ kfree(data); -+ return ret; -+} -+ - static int svm_mem_enc_op(struct kvm *kvm, void __user *argp) - { - struct kvm_sev_cmd sev_cmd; -@@ -6171,6 +6242,9 @@ static int svm_mem_enc_op(struct kvm *kvm, void __user *argp) - case KVM_SEV_LAUNCH_UPDATE_DATA: - r = sev_launch_update_data(kvm, &sev_cmd); - break; -+ case KVM_SEV_LAUNCH_MEASURE: -+ r = sev_launch_measure(kvm, &sev_cmd); -+ break; - default: - r = -EINVAL; - goto out; --- -2.7.4 - |