diff options
Diffstat (limited to 'drivers/crypto/ccp/sev-dev.c')
| -rw-r--r-- | drivers/crypto/ccp/sev-dev.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c index cb9b4c4e371e..da3872c48308 100644 --- a/drivers/crypto/ccp/sev-dev.c +++ b/drivers/crypto/ccp/sev-dev.c @@ -21,6 +21,7 @@ #include <linux/ccp.h> #include <linux/firmware.h> #include <linux/gfp.h> +#include <linux/cpufeature.h> #include <asm/smp.h> @@ -972,6 +973,11 @@ int sev_dev_init(struct psp_device *psp) struct sev_device *sev; int ret = -ENOMEM; + if (!boot_cpu_has(X86_FEATURE_SEV)) { + dev_info_once(dev, "SEV: memory encryption not enabled by BIOS\n"); + return 0; + } + sev = devm_kzalloc(dev, sizeof(*sev), GFP_KERNEL); if (!sev) goto e_err; |