diff mbox series

[3/5] x86/kvm/Kconfig: Have KVM_AMD_SEV select ARCH_HAS_CC_PLATFORM

Message ID 20240327154317.29909-4-bp@alien8.de (mailing list archive)
State New, archived
Headers show
Series x86/sev: Fix SNP host late disable | expand

Commit Message

Borislav Petkov March 27, 2024, 3:43 p.m. UTC 
From: "Borislav Petkov (AMD)" <bp@alien8.de>

The functionality to load SEV-SNP guests by the host will soon rely on
cc_platform* helpers because the cpu_feature* API with the early
patching is insufficient when SNP support needs to be disabled late.

Therefore, pull that functionality in.

Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
---
 arch/x86/kvm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

Comments

Tom Lendacky March 29, 2024, 2:42 p.m. UTC | #1 
On 3/27/24 10:43, Borislav Petkov wrote:
> From: "Borislav Petkov (AMD)" <bp@alien8.de>
> 
> The functionality to load SEV-SNP guests by the host will soon rely on
> cc_platform* helpers because the cpu_feature* API with the early
> patching is insufficient when SNP support needs to be disabled late.
> 
> Therefore, pull that functionality in.
> 
> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>

Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>

> ---
>   arch/x86/kvm/Kconfig | 1 +
>   1 file changed, 1 insertion(+)
>
diff mbox series

Patch

diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
index 3aaf7e86a859..0ebdd088f28b 100644
--- a/arch/x86/kvm/Kconfig
+++ b/arch/x86/kvm/Kconfig
@@ -122,6 +122,7 @@  config KVM_AMD_SEV
 	default y
 	depends on KVM_AMD && X86_64
 	depends on CRYPTO_DEV_SP_PSP && !(KVM_AMD=y && CRYPTO_DEV_CCP_DD=m)
+	select ARCH_HAS_CC_PLATFORM
 	help
 	  Provides support for launching Encrypted VMs (SEV) and Encrypted VMs
 	  with Encrypted State (SEV-ES) on AMD processors.