diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0026-crypto-ccp-Implement-SEV_PLATFORM_STATUS-ioctl-comma.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0026-crypto-ccp-Implement-SEV_PLATFORM_STATUS-ioctl-comma.patch | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0026-crypto-ccp-Implement-SEV_PLATFORM_STATUS-ioctl-comma.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0026-crypto-ccp-Implement-SEV_PLATFORM_STATUS-ioctl-comma.patch new file mode 100644 index 00000000..1c502b0d --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0026-crypto-ccp-Implement-SEV_PLATFORM_STATUS-ioctl-comma.patch @@ -0,0 +1,70 @@ +From 17db835d27c0176abe8fa32ca12522693514906c Mon Sep 17 00:00:00 2001 +From: Brijesh Singh <brijesh.singh@amd.com> +Date: Mon, 4 Dec 2017 10:57:29 -0600 +Subject: [PATCH 26/95] crypto: ccp: Implement SEV_PLATFORM_STATUS ioctl + command +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +The SEV_PLATFORM_STATUS command can be used by the platform owner to +get the current status of the platform. The command is defined in +SEV spec section 5.5. + +Cc: Paolo Bonzini <pbonzini@redhat.com> +Cc: "Radim Krčmář" <rkrcmar@redhat.com> +Cc: Borislav Petkov <bp@suse.de> +Cc: Herbert Xu <herbert@gondor.apana.org.au> +Cc: Gary Hook <gary.hook@amd.com> +Cc: Tom Lendacky <thomas.lendacky@amd.com> +Cc: linux-crypto@vger.kernel.org +Cc: kvm@vger.kernel.org +Cc: linux-kernel@vger.kernel.org +Improvements-by: Borislav Petkov <bp@suse.de> +Signed-off-by: Brijesh Singh <brijesh.singh@amd.com> +Reviewed-by: Borislav Petkov <bp@suse.de> +Acked-by: Gary R Hook <gary.hook@amd.com> +Signed-off-by: Sudheesh Mavila <sudheesh.mavila@amd.com> +--- + drivers/crypto/ccp/psp-dev.c | 18 ++++++++++++++++++ + 1 file changed, 18 insertions(+) + +diff --git a/drivers/crypto/ccp/psp-dev.c b/drivers/crypto/ccp/psp-dev.c +index b49583a4..a5072b1 100644 +--- a/drivers/crypto/ccp/psp-dev.c ++++ b/drivers/crypto/ccp/psp-dev.c +@@ -274,6 +274,21 @@ static int sev_ioctl_do_reset(struct sev_issue_cmd *argp) + return __sev_do_cmd_locked(SEV_CMD_FACTORY_RESET, 0, &argp->error); + } + ++static int sev_ioctl_do_platform_status(struct sev_issue_cmd *argp) ++{ ++ struct sev_user_data_status *data = &psp_master->status_cmd_buf; ++ int ret; ++ ++ ret = __sev_do_cmd_locked(SEV_CMD_PLATFORM_STATUS, data, &argp->error); ++ if (ret) ++ return ret; ++ ++ if (copy_to_user((void __user *)argp->data, data, sizeof(*data))) ++ ret = -EFAULT; ++ ++ return ret; ++} ++ + static long sev_ioctl(struct file *file, unsigned int ioctl, unsigned long arg) + { + void __user *argp = (void __user *)arg; +@@ -299,6 +314,9 @@ static long sev_ioctl(struct file *file, unsigned int ioctl, unsigned long arg) + case SEV_FACTORY_RESET: + ret = sev_ioctl_do_reset(&input); + break; ++ case SEV_PLATFORM_STATUS: ++ ret = sev_ioctl_do_platform_status(&input); ++ break; + default: + ret = -EINVAL; + goto out; +-- +2.7.4 + |