Re: [RFC PATCH V4 17/17] x86/sev: Remove restrict interrupt injection from SNP_FEATURES_IMPL_REQ

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On 4/4/2023 8:25 PM, Gupta, Pankaj wrote:

Enabled restrict interrupt injection function. Remove MSR_AMD64_
SNP_RESTRICTED_INJ from SNP_FEATURES_IMPL_REQ to let kernel boot
up with this function.
---
  arch/x86/boot/compressed/sev.c | 1 -
  1 file changed, 1 deletion(-)

diff --git a/arch/x86/boot/compressed/sev.c b/arch/x86/boot/compressed/sev.c
index d63ad8f99f83..a5f41301a600 100644
--- a/arch/x86/boot/compressed/sev.c
+++ b/arch/x86/boot/compressed/sev.c
@@ -299,7 +299,6 @@ static void enforce_vmpl0(void)
   */
  #define SNP_FEATURES_IMPL_REQ    (MSR_AMD64_SNP_VTOM |            \
                   MSR_AMD64_SNP_REFLECT_VC |        \
-                 MSR_AMD64_SNP_RESTRICTED_INJ |        \

Should we update the bit in "SNP_FEATURES_PRESENT" instead?


Nice cath! we should add the bit in the SNP_FEATURES_PRESENT.




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