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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-10-20 11:31:05 -1000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-10-20 11:31:05 -1000 |
| commit | 0e135910deec43ffe97eca0b6af1f8f847285b59 (patch) | |
| tree | 75362d0db2894376c9b228c978851b83b3615945 /drivers | |
| parent | 84568b9b5dc5b8ba6a83a1cd1d1448410473b43e (diff) | |
| parent | 250ee734115bca1c1f7a38d838909aa83cce87ae (diff) | |
Merge tag 'x86_sev_for_v7.4_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 SEV updates from Borislav Petkov:
- Report in sysfs which SEV confidential computing features are enabled
in the environment so that related components like a SVSM can query
them and do appropriate configuration
- Add support for a new AMD SEV instruction called RMPOPT which can be
used to reduce the performance overhead of doing confidential guests'
page ownership verification and the like. Work by Ashish Kalra
* tag 'x86_sev_for_v7.4_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/sev: Report MSR_AMD64_SEV in sysfs
x86/sev: Do RMP optimizations on SNP guest shutdown
x86/sev: Perform RMP optimizations asynchronously
x86/sev: Initialize RMPOPT configuration MSRs
x86/sev: Disable CPU hotplug while SNP is active
x86/cpufeatures: Add X86_FEATURE_RMPOPT feature flag
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/crypto/ccp/sev-dev.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/crypto/ccp/sev-dev.c b/drivers/crypto/ccp/sev-dev.c index f833cb7e4da3..5c996ab63895 100644 --- a/drivers/crypto/ccp/sev-dev.c +++ b/drivers/crypto/ccp/sev-dev.c @@ -1663,6 +1663,8 @@ static int __sev_snp_init_locked(int *error, unsigned int max_snp_asid) sev_es_tmr_size = SNP_TMR_SIZE; + snp_enable_rmpopt(); + return 0; } |