diff options
| author | Borislav Petkov (AMD) <bp@alien8.de> | 2024-03-27 16:43:17 +0100 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2024-04-04 10:40:30 +0200 |
| commit | 0ecaefb303de69929dc0036d5021d01cec7ea052 (patch) | |
| tree | be2be2168e4dd2f405e704f751889f23e617593b /drivers/crypto | |
| parent | bc6f707fc0feec72acc2f49c312eb31d257363a3 (diff) | |
x86/CPU/AMD: Track SNP host status with cc_platform_*()
The host SNP worthiness can determined later, after alternatives have
been patched, in snp_rmptable_init() depending on cmdline options like
iommu=pt which is incompatible with SNP, for example.
Which means that one cannot use X86_FEATURE_SEV_SNP and will need to
have a special flag for that control.
Use that newly added CC_ATTR_HOST_SEV_SNP in the appropriate places.
Move kdump_sev_callback() to its rightful place, while at it.
Fixes: 216d106c7ff7 ("x86/sev: Add SEV-SNP host initialization support")
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Tested-by: Srikanth Aithal <sraithal@amd.com>
Link: https://lore.kernel.org/r/20240327154317.29909-6-bp@alien8.de
Diffstat (limited to 'drivers/crypto')
| -rw-r--r-- | drivers/crypto/ccp/sev-dev.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c index f44efbb89c34..2102377f727b 100644 --- a/drivers/crypto/ccp/sev-dev.c +++ b/drivers/crypto/ccp/sev-dev.c @@ -1090,7 +1090,7 @@ static int __sev_snp_init_locked(int *error) void *arg = &data; int cmd, rc = 0; - if (!cpu_feature_enabled(X86_FEATURE_SEV_SNP)) + if (!cc_platform_has(CC_ATTR_HOST_SEV_SNP)) return -ENODEV; sev = psp->sev_data; |