On Mon, May 22, 2023, Alexander Mikhalitsyn wrote:
> diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
> index cc832a8d1bca..fff63d1f2a34 100644
> --- a/arch/x86/kvm/svm/sev.c
> +++ b/arch/x86/kvm/svm/sev.c
> @@ -2224,7 +2224,6 @@ void __init sev_hardware_setup(void)
> goto out;
> }
>
> - pr_info("SEV supported: %u ASIDs\n", sev_asid_count);
> sev_supported = true;
>
> /* SEV-ES support requested? */
> @@ -2252,10 +2251,16 @@ void __init sev_hardware_setup(void)
> 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);
> 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", 1, min_sev_asid - 1);
The min should print '0' if min_sev_asid<=1, otherwise the output will be
SEV-ES disabled (ASIDs 1 - 0)
which is confusing. That would also align with what gets printed out for SEV
when it's not supported at all (min==max=0).
No need for v3, I'll fixup when applying.
