linux-kernel - [PATCH Part1 RFC v2 06/20] x86/sev: Define SNP guest request NAE events

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Message-Id: <20210430121616.2295-7-brijesh.singh@amd.com>
Date:   Fri, 30 Apr 2021 07:16:02 -0500
From:   Brijesh Singh <brijesh.singh@....com>
To:     x86@...nel.org, linux-kernel@...r.kernel.org, kvm@...r.kernel.org
Cc:     tglx@...utronix.de, bp@...en8.de, jroedel@...e.de,
        thomas.lendacky@....com, pbonzini@...hat.com, mingo@...hat.com,
        dave.hansen@...el.com, rientjes@...gle.com, seanjc@...gle.com,
        peterz@...radead.org, hpa@...or.com, tony.luck@...el.com,
        Brijesh Singh <brijesh.singh@....com>
Subject: [PATCH Part1 RFC v2 06/20] x86/sev: Define SNP guest request NAE events

Version 2 of the GHCB specification added the support for SNP guest
request NAE events. The SEV-SNP guests will use this event to request
the attestation report. See the GHCB specification for more details.

Signed-off-by: Brijesh Singh <brijesh.singh@....com>
---
 arch/x86/include/uapi/asm/svm.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/x86/include/uapi/asm/svm.h b/arch/x86/include/uapi/asm/svm.h
index f7bf12cad58c..7a45aa284530 100644
--- a/arch/x86/include/uapi/asm/svm.h
+++ b/arch/x86/include/uapi/asm/svm.h
@@ -109,6 +109,8 @@
 #define SVM_VMGEXIT_SET_AP_JUMP_TABLE		0
 #define SVM_VMGEXIT_GET_AP_JUMP_TABLE		1
 #define SVM_VMGEXIT_SNP_PAGE_STATE_CHANGE	0x80000010
+#define SVM_VMGEXIT_SNP_GUEST_REQUEST		0x80000011
+#define SVM_VMGEXIT_SNP_EXT_GUEST_REQUEST	0x80000012
 #define SVM_VMGEXIT_HYPERVISOR_FEATURES		0x8000fffd
 #define SVM_VMGEXIT_UNSUPPORTED_EVENT		0x8000ffff
 
@@ -218,6 +220,8 @@
 	{ SVM_VMGEXIT_AP_HLT_LOOP,	"vmgexit_ap_hlt_loop" }, \
 	{ SVM_VMGEXIT_AP_JUMP_TABLE,	"vmgexit_ap_jump_table" }, \
 	{ SVM_VMGEXIT_SNP_PAGE_STATE_CHANGE,	"vmgexit_page_state_change" }, \
+	{ SVM_VMGEXIT_SNP_GUEST_REQUEST,	"vmgexit_snp_guest_request" }, \
+	{ SVM_VMGEXIT_SNP_EXT_GUEST_REQUEST,	"vmgexit_snp_extended_guest_request" }, \
 	{ SVM_VMGEXIT_HYPERVISOR_FEATURES,	"vmgexit_hypervisor_feature" }, \
 	{ SVM_EXIT_ERR,         "invalid_guest_state" }
 
-- 
2.17.1