diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0031-crypto-ccp-Implement-SEV_PDH_CERT_EXPORT-ioctl-comma.patch')
-rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0031-crypto-ccp-Implement-SEV_PDH_CERT_EXPORT-ioctl-comma.patch | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0031-crypto-ccp-Implement-SEV_PDH_CERT_EXPORT-ioctl-comma.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0031-crypto-ccp-Implement-SEV_PDH_CERT_EXPORT-ioctl-comma.patch deleted file mode 100644 index 091165e4..00000000 --- a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71-e3000/0031-crypto-ccp-Implement-SEV_PDH_CERT_EXPORT-ioctl-comma.patch +++ /dev/null @@ -1,147 +0,0 @@ -From 179b8d37cbd2fee5cc2ec40c4d233ebea55e762a Mon Sep 17 00:00:00 2001 -From: Brijesh Singh <brijesh.singh@amd.com> -Date: Mon, 4 Dec 2017 10:57:31 -0600 -Subject: [PATCH 31/95] crypto: ccp: Implement SEV_PDH_CERT_EXPORT ioctl - command -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -The SEV_PDH_CERT_EXPORT command can be used to export the PDH and its -certificate chain. The command is defined in SEV spec section 5.10. - -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> -Acked-by: Gary R Hook <gary.hook@amd.com> -Signed-off-by: Sudheesh Mavila <sudheesh.mavila@amd.com> ---- - drivers/crypto/ccp/psp-dev.c | 97 ++++++++++++++++++++++++++++++++++++++++++++ - 1 file changed, 97 insertions(+) - -diff --git a/drivers/crypto/ccp/psp-dev.c b/drivers/crypto/ccp/psp-dev.c -index 9d1c460..fcfa5b1 100644 ---- a/drivers/crypto/ccp/psp-dev.c -+++ b/drivers/crypto/ccp/psp-dev.c -@@ -443,6 +443,100 @@ static int sev_ioctl_do_pek_import(struct sev_issue_cmd *argp) - return ret; - } - -+static int sev_ioctl_do_pdh_export(struct sev_issue_cmd *argp) -+{ -+ struct sev_user_data_pdh_cert_export input; -+ void *pdh_blob = NULL, *cert_blob = NULL; -+ struct sev_data_pdh_cert_export *data; -+ int ret; -+ -+ if (copy_from_user(&input, (void __user *)argp->data, sizeof(input))) -+ return -EFAULT; -+ -+ data = kzalloc(sizeof(*data), GFP_KERNEL); -+ if (!data) -+ return -ENOMEM; -+ -+ /* Userspace wants to query the certificate length. */ -+ if (!input.pdh_cert_address || -+ !input.pdh_cert_len || -+ !input.cert_chain_address) -+ goto cmd; -+ -+ /* Allocate a physically contiguous buffer to store the PDH blob. */ -+ if ((input.pdh_cert_len > SEV_FW_BLOB_MAX_SIZE) || -+ !access_ok(VERIFY_WRITE, input.pdh_cert_address, input.pdh_cert_len)) { -+ ret = -EFAULT; -+ goto e_free; -+ } -+ -+ /* Allocate a physically contiguous buffer to store the cert chain blob. */ -+ if ((input.cert_chain_len > SEV_FW_BLOB_MAX_SIZE) || -+ !access_ok(VERIFY_WRITE, input.cert_chain_address, input.cert_chain_len)) { -+ ret = -EFAULT; -+ goto e_free; -+ } -+ -+ pdh_blob = kmalloc(input.pdh_cert_len, GFP_KERNEL); -+ if (!pdh_blob) { -+ ret = -ENOMEM; -+ goto e_free; -+ } -+ -+ data->pdh_cert_address = __psp_pa(pdh_blob); -+ data->pdh_cert_len = input.pdh_cert_len; -+ -+ cert_blob = kmalloc(input.cert_chain_len, GFP_KERNEL); -+ if (!cert_blob) { -+ ret = -ENOMEM; -+ goto e_free_pdh; -+ } -+ -+ data->cert_chain_address = __psp_pa(cert_blob); -+ data->cert_chain_len = input.cert_chain_len; -+ -+cmd: -+ /* If platform is not in INIT state then transition it to INIT. */ -+ if (psp_master->sev_state != SEV_STATE_INIT) { -+ ret = __sev_platform_init_locked(&argp->error); -+ if (ret) -+ goto e_free_cert; -+ } -+ -+ ret = __sev_do_cmd_locked(SEV_CMD_PDH_CERT_EXPORT, data, &argp->error); -+ -+ /* If we query the length, FW responded with expected data. */ -+ input.cert_chain_len = data->cert_chain_len; -+ input.pdh_cert_len = data->pdh_cert_len; -+ -+ if (copy_to_user((void __user *)argp->data, &input, sizeof(input))) { -+ ret = -EFAULT; -+ goto e_free_cert; -+ } -+ -+ if (pdh_blob) { -+ if (copy_to_user((void __user *)input.pdh_cert_address, -+ pdh_blob, input.pdh_cert_len)) { -+ ret = -EFAULT; -+ goto e_free_cert; -+ } -+ } -+ -+ if (cert_blob) { -+ if (copy_to_user((void __user *)input.cert_chain_address, -+ cert_blob, input.cert_chain_len)) -+ ret = -EFAULT; -+ } -+ -+e_free_cert: -+ kfree(cert_blob); -+e_free_pdh: -+ kfree(pdh_blob); -+e_free: -+ kfree(data); -+ return ret; -+} -+ - static long sev_ioctl(struct file *file, unsigned int ioctl, unsigned long arg) - { - void __user *argp = (void __user *)arg; -@@ -483,6 +577,9 @@ static long sev_ioctl(struct file *file, unsigned int ioctl, unsigned long arg) - case SEV_PEK_CERT_IMPORT: - ret = sev_ioctl_do_pek_import(&input); - break; -+ case SEV_PDH_CERT_EXPORT: -+ ret = sev_ioctl_do_pdh_export(&input); -+ break; - default: - ret = -EINVAL; - goto out; --- -2.7.4 - |