diff options
| author | Paolo Bonzini <[email protected]> | 2023-07-01 07:19:42 -0400 |
|---|---|---|
| committer | Paolo Bonzini <[email protected]> | 2023-07-01 07:19:42 -0400 |
| commit | 24975ce8b2f863547d0b79a5a4552d5ea3522a3c (patch) | |
| tree | b72ae9d55d5e377c595a454fcc4af57ce3e768ff /arch/x86/kvm/svm/sev.c | |
| parent | bb05b0ef627f1d43122cdd2f172f5fb789f77a99 (diff) | |
| parent | 106ed2cad9f7bd803bd31a18fe7a9219b077bf95 (diff) | |
Merge tag 'kvm-x86-svm-6.5' of https://github.com/kvm-x86/linux into HEAD
KVM SVM changes for 6.5:
- Drop manual TR/TSS load after VM-Exit now that KVM uses VMLOAD for host state
- Fix a not-yet-problematic missing call to trace_kvm_exit() for VM-Exits that
are handled in the fastpath
- Print more descriptive information about the status of SEV and SEV-ES during
module load
- Assert that misc_cg_set_capacity() doesn't fail to avoid should-be-impossible
memory leaks
Diffstat (limited to 'arch/x86/kvm/svm/sev.c')
| -rw-r--r-- | arch/x86/kvm/svm/sev.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c index 69ae5e1b3120..07756b7348ae 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -2216,10 +2216,7 @@ void __init sev_hardware_setup(void) } sev_asid_count = max_sev_asid - min_sev_asid + 1; - if (misc_cg_set_capacity(MISC_CG_RES_SEV, sev_asid_count)) - goto out; - - pr_info("SEV supported: %u ASIDs\n", sev_asid_count); + WARN_ON_ONCE(misc_cg_set_capacity(MISC_CG_RES_SEV, sev_asid_count)); sev_supported = true; /* SEV-ES support requested? */ @@ -2244,13 +2241,19 @@ void __init sev_hardware_setup(void) goto out; sev_es_asid_count = min_sev_asid - 1; - if (misc_cg_set_capacity(MISC_CG_RES_SEV_ES, sev_es_asid_count)) - goto out; - - pr_info("SEV-ES supported: %u ASIDs\n", sev_es_asid_count); + WARN_ON_ONCE(misc_cg_set_capacity(MISC_CG_RES_SEV_ES, sev_es_asid_count)); sev_es_supported = true; out: + if (boot_cpu_has(X86_FEATURE_SEV)) + pr_info("SEV %s (ASIDs %u - %u)\n", + sev_supported ? "enabled" : "disabled", + min_sev_asid, max_sev_asid); + if (boot_cpu_has(X86_FEATURE_SEV_ES)) + pr_info("SEV-ES %s (ASIDs %u - %u)\n", + sev_es_supported ? "enabled" : "disabled", + min_sev_asid > 1 ? 1 : 0, min_sev_asid - 1); + sev_enabled = sev_supported; sev_es_enabled = sev_es_supported; #endif |