2024-04-18 19:51:25

by Michael Roth

[permalink] [raw]
Subject: [PATCH v13 22/26] KVM: SVM: Add module parameter to enable SEV-SNP

From: Brijesh Singh <[email protected]>

Add a module parameter than can be used to enable or disable the SEV-SNP
feature. Now that KVM contains the support for the SNP set the GHCB
hypervisor feature flag to indicate that SNP is supported.

Signed-off-by: Brijesh Singh <[email protected]>
Reviewed-by: Paolo Bonzini <[email protected]>
Signed-off-by: Ashish Kalra <[email protected]>
---
arch/x86/kvm/svm/sev.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index 03bfb7b9732d..de51c3aa0040 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -48,7 +48,8 @@ static bool sev_es_enabled = true;
module_param_named(sev_es, sev_es_enabled, bool, 0444);

/* enable/disable SEV-SNP support */
-static bool sev_snp_enabled;
+static bool sev_snp_enabled = true;
+module_param_named(sev_snp, sev_snp_enabled, bool, 0444);

/* enable/disable SEV-ES DebugSwap support */
static bool sev_es_debug_swap_enabled = true;
--
2.25.1