diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0080-KVM-SVM-Add-support-for-SEV-LAUNCH_SECRET-command.patch')
-rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0080-KVM-SVM-Add-support-for-SEV-LAUNCH_SECRET-command.patch | 117 |
1 files changed, 0 insertions, 117 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0080-KVM-SVM-Add-support-for-SEV-LAUNCH_SECRET-command.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0080-KVM-SVM-Add-support-for-SEV-LAUNCH_SECRET-command.patch deleted file mode 100644 index fa17dc72..00000000 --- a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0080-KVM-SVM-Add-support-for-SEV-LAUNCH_SECRET-command.patch +++ /dev/null @@ -1,117 +0,0 @@ -From df27d409eaaf9275190905f8714ca2c1ae2c19b5 Mon Sep 17 00:00:00 2001 -From: Brijesh Singh <brijesh.singh@amd.com> -Date: Mon, 4 Dec 2017 10:57:38 -0600 -Subject: [PATCH 80/95] KVM: SVM: Add support for SEV LAUNCH_SECRET command -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -The command is used for injecting a secret into the guest memory region. - -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 | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ - 1 file changed, 68 insertions(+) - -diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c -index 94461e3..83a4dfe 100755 ---- a/arch/x86/kvm/svm.c -+++ b/arch/x86/kvm/svm.c -@@ -6503,6 +6503,71 @@ static int sev_dbg_crypt(struct kvm *kvm, struct kvm_sev_cmd *argp, bool dec) - return ret; - } - -+static int sev_launch_secret(struct kvm *kvm, struct kvm_sev_cmd *argp) -+{ -+ struct kvm_sev_info *sev = &kvm->arch.sev_info; -+ struct sev_data_launch_secret *data; -+ struct kvm_sev_launch_secret params; -+ struct page **pages; -+ void *blob, *hdr; -+ unsigned long n; -+ int ret; -+ -+ if (!sev_guest(kvm)) -+ return -ENOTTY; -+ -+ if (copy_from_user(¶ms, (void __user *)(uintptr_t)argp->data, sizeof(params))) -+ return -EFAULT; -+ -+ pages = sev_pin_memory(kvm, params.guest_uaddr, params.guest_len, &n, 1); -+ if (!pages) -+ return -ENOMEM; -+ -+ /* -+ * The secret must be copied into contiguous memory region, lets verify -+ * that userspace memory pages are contiguous before we issue command. -+ */ -+ if (get_num_contig_pages(0, pages, n) != n) { -+ ret = -EINVAL; -+ goto e_unpin_memory; -+ } -+ -+ ret = -ENOMEM; -+ data = kzalloc(sizeof(*data), GFP_KERNEL); -+ if (!data) -+ goto e_unpin_memory; -+ -+ blob = psp_copy_user_blob(params.trans_uaddr, params.trans_len); -+ if (IS_ERR(blob)) { -+ ret = PTR_ERR(blob); -+ goto e_free; -+ } -+ -+ data->trans_address = __psp_pa(blob); -+ data->trans_len = params.trans_len; -+ -+ hdr = psp_copy_user_blob(params.hdr_uaddr, params.hdr_len); -+ if (IS_ERR(hdr)) { -+ ret = PTR_ERR(hdr); -+ goto e_free_blob; -+ } -+ data->trans_address = __psp_pa(blob); -+ data->trans_len = params.trans_len; -+ -+ data->handle = sev->handle; -+ ret = sev_issue_cmd(kvm, SEV_CMD_LAUNCH_UPDATE_SECRET, data, &argp->error); -+ -+ kfree(hdr); -+ -+e_free_blob: -+ kfree(blob); -+e_free: -+ kfree(data); -+e_unpin_memory: -+ sev_unpin_memory(kvm, pages, n); -+ return ret; -+} -+ - static int svm_mem_enc_op(struct kvm *kvm, void __user *argp) - { - struct kvm_sev_cmd sev_cmd; -@@ -6541,6 +6606,9 @@ static int svm_mem_enc_op(struct kvm *kvm, void __user *argp) - case KVM_SEV_DBG_ENCRYPT: - r = sev_dbg_crypt(kvm, &sev_cmd, false); - break; -+ case KVM_SEV_LAUNCH_SECRET: -+ r = sev_launch_secret(kvm, &sev_cmd); -+ break; - default: - r = -EINVAL; - goto out; --- -2.7.4 - |