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-rw-r--r--drivers/crypto/ccp/ccp-crypto-aes-xts.c13
-rw-r--r--drivers/crypto/ccp/ccp-crypto.h2
-rw-r--r--drivers/crypto/ccp/psp-dev.c47
-rw-r--r--drivers/crypto/ccp/sp-platform.c53
4 files changed, 75 insertions, 40 deletions
diff --git a/drivers/crypto/ccp/ccp-crypto-aes-xts.c b/drivers/crypto/ccp/ccp-crypto-aes-xts.c
index 94b5bcf5b628..ca4630b8395f 100644
--- a/drivers/crypto/ccp/ccp-crypto-aes-xts.c
+++ b/drivers/crypto/ccp/ccp-crypto-aes-xts.c
@@ -102,7 +102,7 @@ static int ccp_aes_xts_setkey(struct crypto_ablkcipher *tfm, const u8 *key,
ctx->u.aes.key_len = key_len / 2;
sg_init_one(&ctx->u.aes.key_sg, ctx->u.aes.key, key_len);
- return crypto_skcipher_setkey(ctx->u.aes.tfm_skcipher, key, key_len);
+ return crypto_sync_skcipher_setkey(ctx->u.aes.tfm_skcipher, key, key_len);
}
static int ccp_aes_xts_crypt(struct ablkcipher_request *req,
@@ -151,12 +151,13 @@ static int ccp_aes_xts_crypt(struct ablkcipher_request *req,
(ctx->u.aes.key_len != AES_KEYSIZE_256))
fallback = 1;
if (fallback) {
- SKCIPHER_REQUEST_ON_STACK(subreq, ctx->u.aes.tfm_skcipher);
+ SYNC_SKCIPHER_REQUEST_ON_STACK(subreq,
+ ctx->u.aes.tfm_skcipher);
/* Use the fallback to process the request for any
* unsupported unit sizes or key sizes
*/
- skcipher_request_set_tfm(subreq, ctx->u.aes.tfm_skcipher);
+ skcipher_request_set_sync_tfm(subreq, ctx->u.aes.tfm_skcipher);
skcipher_request_set_callback(subreq, req->base.flags,
NULL, NULL);
skcipher_request_set_crypt(subreq, req->src, req->dst,
@@ -203,12 +204,12 @@ static int ccp_aes_xts_decrypt(struct ablkcipher_request *req)
static int ccp_aes_xts_cra_init(struct crypto_tfm *tfm)
{
struct ccp_ctx *ctx = crypto_tfm_ctx(tfm);
- struct crypto_skcipher *fallback_tfm;
+ struct crypto_sync_skcipher *fallback_tfm;
ctx->complete = ccp_aes_xts_complete;
ctx->u.aes.key_len = 0;
- fallback_tfm = crypto_alloc_skcipher("xts(aes)", 0,
+ fallback_tfm = crypto_alloc_sync_skcipher("xts(aes)", 0,
CRYPTO_ALG_ASYNC |
CRYPTO_ALG_NEED_FALLBACK);
if (IS_ERR(fallback_tfm)) {
@@ -226,7 +227,7 @@ static void ccp_aes_xts_cra_exit(struct crypto_tfm *tfm)
{
struct ccp_ctx *ctx = crypto_tfm_ctx(tfm);
- crypto_free_skcipher(ctx->u.aes.tfm_skcipher);
+ crypto_free_sync_skcipher(ctx->u.aes.tfm_skcipher);
}
static int ccp_register_aes_xts_alg(struct list_head *head,
diff --git a/drivers/crypto/ccp/ccp-crypto.h b/drivers/crypto/ccp/ccp-crypto.h
index b9fd090c46c2..28819e11db96 100644
--- a/drivers/crypto/ccp/ccp-crypto.h
+++ b/drivers/crypto/ccp/ccp-crypto.h
@@ -88,7 +88,7 @@ static inline struct ccp_crypto_ahash_alg *
/***** AES related defines *****/
struct ccp_aes_ctx {
/* Fallback cipher for XTS with unsupported unit sizes */
- struct crypto_skcipher *tfm_skcipher;
+ struct crypto_sync_skcipher *tfm_skcipher;
/* Cipher used to generate CMAC K1/K2 keys */
struct crypto_cipher *tfm_cipher;
diff --git a/drivers/crypto/ccp/psp-dev.c b/drivers/crypto/ccp/psp-dev.c
index 72790d88236d..d64a78ccc03e 100644
--- a/drivers/crypto/ccp/psp-dev.c
+++ b/drivers/crypto/ccp/psp-dev.c
@@ -31,8 +31,9 @@
((psp_master->api_major) >= _maj && \
(psp_master->api_minor) >= _min)
-#define DEVICE_NAME "sev"
-#define SEV_FW_FILE "amd/sev.fw"
+#define DEVICE_NAME "sev"
+#define SEV_FW_FILE "amd/sev.fw"
+#define SEV_FW_NAME_SIZE 64
static DEFINE_MUTEX(sev_cmd_mutex);
static struct sev_misc_dev *misc_dev;
@@ -423,7 +424,7 @@ EXPORT_SYMBOL_GPL(psp_copy_user_blob);
static int sev_get_api_version(void)
{
struct sev_user_data_status *status;
- int error, ret;
+ int error = 0, ret;
status = &psp_master->status_cmd_buf;
ret = sev_platform_status(status, &error);
@@ -440,6 +441,41 @@ static int sev_get_api_version(void)
return 0;
}
+static int sev_get_firmware(struct device *dev,
+ const struct firmware **firmware)
+{
+ char fw_name_specific[SEV_FW_NAME_SIZE];
+ char fw_name_subset[SEV_FW_NAME_SIZE];
+
+ snprintf(fw_name_specific, sizeof(fw_name_specific),
+ "amd/amd_sev_fam%.2xh_model%.2xh.sbin",
+ boot_cpu_data.x86, boot_cpu_data.x86_model);
+
+ snprintf(fw_name_subset, sizeof(fw_name_subset),
+ "amd/amd_sev_fam%.2xh_model%.1xxh.sbin",
+ boot_cpu_data.x86, (boot_cpu_data.x86_model & 0xf0) >> 4);
+
+ /* Check for SEV FW for a particular model.
+ * Ex. amd_sev_fam17h_model00h.sbin for Family 17h Model 00h
+ *
+ * or
+ *
+ * Check for SEV FW common to a subset of models.
+ * Ex. amd_sev_fam17h_model0xh.sbin for
+ * Family 17h Model 00h -- Family 17h Model 0Fh
+ *
+ * or
+ *
+ * Fall-back to using generic name: sev.fw
+ */
+ if ((firmware_request_nowarn(firmware, fw_name_specific, dev) >= 0) ||
+ (firmware_request_nowarn(firmware, fw_name_subset, dev) >= 0) ||
+ (firmware_request_nowarn(firmware, SEV_FW_FILE, dev) >= 0))
+ return 0;
+
+ return -ENOENT;
+}
+
/* Don't fail if SEV FW couldn't be updated. Continue with existing SEV FW */
static int sev_update_firmware(struct device *dev)
{
@@ -449,9 +485,10 @@ static int sev_update_firmware(struct device *dev)
struct page *p;
u64 data_size;
- ret = request_firmware(&firmware, SEV_FW_FILE, dev);
- if (ret < 0)
+ if (sev_get_firmware(dev, &firmware) == -ENOENT) {
+ dev_dbg(dev, "No SEV firmware file present\n");
return -1;
+ }
/*
* SEV FW expects the physical address given to it to be 32
diff --git a/drivers/crypto/ccp/sp-platform.c b/drivers/crypto/ccp/sp-platform.c
index 71734f254fd1..b75dc7db2d4a 100644
--- a/drivers/crypto/ccp/sp-platform.c
+++ b/drivers/crypto/ccp/sp-platform.c
@@ -33,8 +33,31 @@ struct sp_platform {
unsigned int irq_count;
};
-static const struct acpi_device_id sp_acpi_match[];
-static const struct of_device_id sp_of_match[];
+static const struct sp_dev_vdata dev_vdata[] = {
+ {
+ .bar = 0,
+#ifdef CONFIG_CRYPTO_DEV_SP_CCP
+ .ccp_vdata = &ccpv3_platform,
+#endif
+ },
+};
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id sp_acpi_match[] = {
+ { "AMDI0C00", (kernel_ulong_t)&dev_vdata[0] },
+ { },
+};
+MODULE_DEVICE_TABLE(acpi, sp_acpi_match);
+#endif
+
+#ifdef CONFIG_OF
+static const struct of_device_id sp_of_match[] = {
+ { .compatible = "amd,ccp-seattle-v1a",
+ .data = (const void *)&dev_vdata[0] },
+ { },
+};
+MODULE_DEVICE_TABLE(of, sp_of_match);
+#endif
static struct sp_dev_vdata *sp_get_of_version(struct platform_device *pdev)
{
@@ -201,32 +224,6 @@ static int sp_platform_resume(struct platform_device *pdev)
}
#endif
-static const struct sp_dev_vdata dev_vdata[] = {
- {
- .bar = 0,
-#ifdef CONFIG_CRYPTO_DEV_SP_CCP
- .ccp_vdata = &ccpv3_platform,
-#endif
- },
-};
-
-#ifdef CONFIG_ACPI
-static const struct acpi_device_id sp_acpi_match[] = {
- { "AMDI0C00", (kernel_ulong_t)&dev_vdata[0] },
- { },
-};
-MODULE_DEVICE_TABLE(acpi, sp_acpi_match);
-#endif
-
-#ifdef CONFIG_OF
-static const struct of_device_id sp_of_match[] = {
- { .compatible = "amd,ccp-seattle-v1a",
- .data = (const void *)&dev_vdata[0] },
- { },
-};
-MODULE_DEVICE_TABLE(of, sp_of_match);
-#endif
-
static struct platform_driver sp_platform_driver = {
.driver = {
.name = "ccp",
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