diff options
Diffstat (limited to 'OvmfPkg/ResetVector/Ia16/ResetVectorVtf0.asm')
| -rw-r--r-- | OvmfPkg/ResetVector/Ia16/ResetVectorVtf0.asm | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/OvmfPkg/ResetVector/Ia16/ResetVectorVtf0.asm b/OvmfPkg/ResetVector/Ia16/ResetVectorVtf0.asm index 9c0b5853a4..7ec3c6e980 100644 --- a/OvmfPkg/ResetVector/Ia16/ResetVectorVtf0.asm +++ b/OvmfPkg/ResetVector/Ia16/ResetVectorVtf0.asm @@ -47,7 +47,27 @@ TIMES (15 - ((guidedStructureEnd - guidedStructureStart + 15) % 16)) DB 0 ;
guidedStructureStart:
+; SEV Hash Table Block
;
+; This describes the guest ram area where the hypervisor should
+; install a table describing the hashes of certain firmware configuration
+; device files that would otherwise be passed in unchecked. The current
+; use is for the kernel, initrd and command line values, but others may be
+; added. The data format is:
+;
+; base physical address (32 bit word)
+; table length (32 bit word)
+;
+; GUID (SEV FW config hash block): 7255371f-3a3b-4b04-927b-1da6efa8d454
+;
+sevFwHashBlockStart:
+ DD SEV_FW_HASH_BLOCK_BASE
+ DD SEV_FW_HASH_BLOCK_SIZE
+ DW sevFwHashBlockEnd - sevFwHashBlockStart
+ DB 0x1f, 0x37, 0x55, 0x72, 0x3b, 0x3a, 0x04, 0x4b
+ DB 0x92, 0x7b, 0x1d, 0xa6, 0xef, 0xa8, 0xd4, 0x54
+sevFwHashBlockEnd:
+
; SEV Secret block
;
; This describes the guest ram area where the hypervisor should
|