Messages in this thread | | | Date | Mon, 18 Dec 2023 11:13:50 +0100 | From | Borislav Petkov <> | Subject | Re: [PATCH v10 20/50] KVM: SEV: Select CONFIG_KVM_SW_PROTECTED_VM when CONFIG_KVM_AMD_SEV=y |
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On Mon, Oct 16, 2023 at 08:27:49AM -0500, Michael Roth wrote: > SEV-SNP relies on the restricted/protected memory support to run guests, > so make sure to enable that support with the > CONFIG_KVM_SW_PROTECTED_VM build option. > > Signed-off-by: Michael Roth <michael.roth@amd.com> > --- > arch/x86/kvm/Kconfig | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig > index 8452ed0228cb..71dc506aa3fb 100644 > --- a/arch/x86/kvm/Kconfig > +++ b/arch/x86/kvm/Kconfig > @@ -126,6 +126,7 @@ config KVM_AMD_SEV > bool "AMD Secure Encrypted Virtualization (SEV) support" > depends on KVM_AMD && X86_64 > depends on CRYPTO_DEV_SP_PSP && !(KVM_AMD=y && CRYPTO_DEV_CCP_DD=m) > + select KVM_SW_PROTECTED_VM > help > Provides support for launching Encrypted VMs (SEV) and Encrypted VMs > with Encrypted State (SEV-ES) on AMD processors. > --
Kconfig doesn't like this one:
WARNING: unmet direct dependencies detected for KVM_SW_PROTECTED_VM Depends on [n]: VIRTUALIZATION [=y] && EXPERT [=n] && X86_64 [=y] Selected by [m]: - KVM_AMD_SEV [=y] && VIRTUALIZATION [=y] && KVM_AMD [=m] && X86_64 [=y] && CRYPTO_DEV_SP_PSP [=y] && (KVM_AMD [=m]!=y || CRYPTO_DEV_CCP_DD [=m]!=m)
WARNING: unmet direct dependencies detected for KVM_SW_PROTECTED_VM Depends on [n]: VIRTUALIZATION [=y] && EXPERT [=n] && X86_64 [=y] Selected by [m]: - KVM_AMD_SEV [=y] && VIRTUALIZATION [=y] && KVM_AMD [=m] && X86_64 [=y] && CRYPTO_DEV_SP_PSP [=y] && (KVM_AMD [=m]!=y || CRYPTO_DEV_CCP_DD [=m]!=m)
-- Regards/Gruss, Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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