| Message ID | 20210430121616.2295-5-brijesh.singh@amd.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show
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From: Brijesh Singh <brijesh.singh@amd.com>
To: x86@kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: tglx@linutronix.de, bp@alien8.de, jroedel@suse.de,
thomas.lendacky@amd.com, pbonzini@redhat.com, mingo@redhat.com,
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Brijesh Singh <brijesh.singh@amd.com>
Subject: [PATCH Part1 RFC v2 04/20] x86/sev: Increase the GHCB protocol
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Date: Fri, 30 Apr 2021 07:16:00 -0500
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Add AMD Secure Nested Paging (SEV-SNP) Guest Support
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expand
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diff --git a/arch/x86/include/asm/sev.h b/arch/x86/include/asm/sev.h index 7ec91b1359df..134a7c9d91b6 100644 --- a/arch/x86/include/asm/sev.h +++ b/arch/x86/include/asm/sev.h @@ -13,7 +13,7 @@ #include <asm/sev-common.h> #define GHCB_PROTOCOL_MIN 1ULL -#define GHCB_PROTOCOL_MAX 1ULL +#define GHCB_PROTOCOL_MAX 2ULL #define GHCB_DEFAULT_USAGE 0ULL #define VMGEXIT() { asm volatile("rep; vmmcall\n\r"); }
Now that the Linux guest supports version 2 of the GHCB specification, bump the maximum supported GHCB protocol version. Signed-off-by: Brijesh Singh <brijesh.singh@amd.com> --- arch/x86/include/asm/sev.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)