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| author | Borislav Petkov (AMD) <bp@alien8.de> | 2023-03-28 22:17:12 +0200 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2023-05-08 11:49:29 +0200 |
| commit | f710ac5442f630a7b8dc25e30e25d30a4a38e796 (patch) | |
| tree | 62304921f676d4b23950c9d2e8740249eb25aaea /arch/x86/kernel/sev.c | |
| parent | 1eaf282e2c7d062a946980758df013f09f934a54 (diff) | |
| download | linux-f710ac5442f630a7b8dc25e30e25d30a4a38e796.tar.gz linux-f710ac5442f630a7b8dc25e30e25d30a4a38e796.tar.bz2 linux-f710ac5442f630a7b8dc25e30e25d30a4a38e796.zip | |
x86/sev: Get rid of special sev_es_enable_key
A SEV-ES guest is active on AMD when CC_ATTR_GUEST_STATE_ENCRYPT is set.
I.e., MSR_AMD64_SEV, bit 1, SEV_ES_Enabled. So no need for a special
static key.
No functional changes.
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/r/20230328201712.25852-3-bp@alien8.de
Diffstat (limited to 'arch/x86/kernel/sev.c')
| -rw-r--r-- | arch/x86/kernel/sev.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/x86/kernel/sev.c b/arch/x86/kernel/sev.c index b031244d6d2d..0ec0d963b8b7 100644 --- a/arch/x86/kernel/sev.c +++ b/arch/x86/kernel/sev.c @@ -113,8 +113,6 @@ struct ghcb_state { }; static DEFINE_PER_CPU(struct sev_es_runtime_data*, runtime_data); -DEFINE_STATIC_KEY_FALSE(sev_es_enable_key); - static DEFINE_PER_CPU(struct sev_es_save_area *, sev_vmsa); struct sev_config { @@ -1395,9 +1393,6 @@ void __init sev_es_init_vc_handling(void) sev_es_terminate(SEV_TERM_SET_GEN, GHCB_SNP_UNSUPPORTED); } - /* Enable SEV-ES special handling */ - static_branch_enable(&sev_es_enable_key); - /* Initialize per-cpu GHCB pages */ for_each_possible_cpu(cpu) { alloc_runtime_data(cpu); |