diff options
| author | Michael Roth <michael.roth@amd.com> | 2024-07-01 17:31:47 -0500 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2024-07-16 11:44:00 -0400 |
| commit | f55f3c3ac69f22ce092506244a31c08a1ca497ba (patch) | |
| tree | c53c5b7527e7b92f462f7a8c27b86a914b812d99 /drivers/virt | |
| parent | 88caf544c9305313e1c48ac1a437faa5df8fff06 (diff) | |
x86/sev: Move sev_guest.h into common SEV header
sev_guest.h currently contains various definitions relating to the
format of SNP_GUEST_REQUEST commands to SNP firmware. Currently only the
sev-guest driver makes use of them, but when the KVM side of this is
implemented there's a need to parse the SNP_GUEST_REQUEST header to
determine whether additional information needs to be provided to the
guest. Prepare for this by moving those definitions to a common header
that's shared by host/guest code so that KVM can also make use of them.
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Signed-off-by: Michael Roth <michael.roth@amd.com>
Message-ID: <20240701223148.3798365-3-michael.roth@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'drivers/virt')
| -rw-r--r-- | drivers/virt/coco/sev-guest/sev-guest.c | 2 | ||||
| -rw-r--r-- | drivers/virt/coco/sev-guest/sev-guest.h | 63 |
2 files changed, 0 insertions, 65 deletions
diff --git a/drivers/virt/coco/sev-guest/sev-guest.c b/drivers/virt/coco/sev-guest/sev-guest.c index 87f241825bc3..41e185ad0681 100644 --- a/drivers/virt/coco/sev-guest/sev-guest.c +++ b/drivers/virt/coco/sev-guest/sev-guest.c @@ -29,8 +29,6 @@ #include <asm/svm.h> #include <asm/sev.h> -#include "sev-guest.h" - #define DEVICE_NAME "sev-guest" #define AAD_LEN 48 #define MSG_HDR_VER 1 diff --git a/drivers/virt/coco/sev-guest/sev-guest.h b/drivers/virt/coco/sev-guest/sev-guest.h deleted file mode 100644 index 21bda26fdb95..000000000000 --- a/drivers/virt/coco/sev-guest/sev-guest.h +++ /dev/null @@ -1,63 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Copyright (C) 2021 Advanced Micro Devices, Inc. - * - * Author: Brijesh Singh <brijesh.singh@amd.com> - * - * SEV-SNP API spec is available at https://developer.amd.com/sev - */ - -#ifndef __VIRT_SEVGUEST_H__ -#define __VIRT_SEVGUEST_H__ - -#include <linux/types.h> - -#define MAX_AUTHTAG_LEN 32 - -/* See SNP spec SNP_GUEST_REQUEST section for the structure */ -enum msg_type { - SNP_MSG_TYPE_INVALID = 0, - SNP_MSG_CPUID_REQ, - SNP_MSG_CPUID_RSP, - SNP_MSG_KEY_REQ, - SNP_MSG_KEY_RSP, - SNP_MSG_REPORT_REQ, - SNP_MSG_REPORT_RSP, - SNP_MSG_EXPORT_REQ, - SNP_MSG_EXPORT_RSP, - SNP_MSG_IMPORT_REQ, - SNP_MSG_IMPORT_RSP, - SNP_MSG_ABSORB_REQ, - SNP_MSG_ABSORB_RSP, - SNP_MSG_VMRK_REQ, - SNP_MSG_VMRK_RSP, - - SNP_MSG_TYPE_MAX -}; - -enum aead_algo { - SNP_AEAD_INVALID, - SNP_AEAD_AES_256_GCM, -}; - -struct snp_guest_msg_hdr { - u8 authtag[MAX_AUTHTAG_LEN]; - u64 msg_seqno; - u8 rsvd1[8]; - u8 algo; - u8 hdr_version; - u16 hdr_sz; - u8 msg_type; - u8 msg_version; - u16 msg_sz; - u32 rsvd2; - u8 msg_vmpck; - u8 rsvd3[35]; -} __packed; - -struct snp_guest_msg { - struct snp_guest_msg_hdr hdr; - u8 payload[4000]; -} __packed; - -#endif /* __VIRT_SEVGUEST_H__ */ |