Re: [PATCH Part1 RFC v3 09/22] x86/compressed: Register GHCB memory when SEV-SNP is active
From: Borislav Petkov <bp@alien8.de>
Date: 2021-06-09 17:47:08
Also in:
kvm, linux-coco, linux-efi, linux-mm, lkml, platform-driver-x86
On Wed, Jun 02, 2021 at 09:04:03AM -0500, Brijesh Singh wrote:
quoted hunk ↗ jump to hunk
diff --git a/arch/x86/include/asm/sev-common.h b/arch/x86/include/asm/sev-common.h index 1424b8ffde0b..ae99a8a756fe 100644 --- a/arch/x86/include/asm/sev-common.h +++ b/arch/x86/include/asm/sev-common.h@@ -75,6 +75,17 @@ #define GHCB_MSR_PSC_ERROR_POS 32 #define GHCB_MSR_PSC_RESP_VAL(val) ((val) >> GHCB_MSR_PSC_ERROR_POS) +/* GHCB GPA Register */ +#define GHCB_MSR_GPA_REG_REQ 0x012 +#define GHCB_MSR_GPA_REG_VALUE_POS 12 +#define GHCB_MSR_GPA_REG_GFN_MASK GENMASK_ULL(51, 0) +#define GHCB_MSR_GPA_REQ_GFN_VAL(v) \ + (((unsigned long)((v) & GHCB_MSR_GPA_REG_GFN_MASK) << GHCB_MSR_GPA_REG_VALUE_POS)| \ + GHCB_MSR_GPA_REG_REQ) + +#define GHCB_MSR_GPA_REG_RESP 0x013 +#define GHCB_MSR_GPA_REG_RESP_VAL(v) ((v) >> GHCB_MSR_GPA_REG_VALUE_POS) +
Can we pls pay attention to having those REQuests sorted by their
number, like in the GHCB spec, for faster finding?
--
Regards/Gruss,
Boris.
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