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OvmfPkg: Add OVMF Memory Debug Logging GUIDs and PCDs

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The OVMF Memory Debug Logging feature logs DEBUG() messages
to a memory buffer allowing for extraction of debug messages
directly from a qemu process or core file.

Add the GUIDs and PCDs definitions required for the
OVMF Memory Debug Logging feature.

Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Aaron Young <aaron.young@oracle.com>
This commit is contained in:
Aaron Young
2025-04-28 09:13:24 -07:00
committed by mergify[bot]
parent 9d4eda962a
commit 26b37a1670
1 changed files with 18 additions and 0 deletions
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18
OvmfPkg/OvmfPkg.dec
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@@ -156,6 +156,10 @@
#
CpuMmuInitLib|Include/Library/CpuMmuInitLib.h
## @libraryclass MemDebugLogLib
#
MemDebugLogLib|Include/Library/MemDebugLogLib.h
[Guids]
gUefiOvmfPkgTokenSpaceGuid = {0x93bb96af, 0xb9f2, 0x4eb8, {0x94, 0x62, 0xe0, 0xba, 0x74, 0x56, 0x42, 0x36}}
gEfiXenInfoGuid = {0xd3b46f3b, 0xd441, 0x1244, {0x9a, 0x12, 0x0, 0x12, 0x27, 0x3f, 0xc1, 0x4d}}
@@ -179,6 +183,7 @@
gQemuFirmwareResourceHobGuid = {0x3cc47b04, 0x0d3e, 0xaa64, {0x06, 0xa6, 0x4b, 0xdc, 0x9a, 0x2c, 0x61, 0x19}}
gRtcRegisterBaseAddressHobGuid = {0x40435d97, 0xeb37, 0x4a4b, {0x7f, 0xad, 0xb7, 0xed, 0x72, 0xa1, 0x43, 0xc5}}
gOvmfFwCfgInfoHobGuid = {0xa291ce0e, 0xdc09, 0x11ee, {0x9e, 0xdb, 0x73, 0x49, 0xd7, 0x92, 0xaf, 0x51}}
gMemDebugLogHobGuid = {0x95305139, 0xb20f, 0x4723, {0x84, 0x25, 0x62, 0x7c, 0x88, 0x8f, 0xf1, 0x21}}
[Ppis]
# PPI whose presence in the PPI database signals that the TPM base address
@@ -363,6 +368,19 @@
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecSvsmCaaBase|0|UINT32|0x70
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecSvsmCaaSize|0|UINT32|0x71
## The base address and size of the early memory debug log used in SEC
# and early PEI phases - i.e. prior to memory being initialized.
# If this is set in the .fdf, the platform is responsible to
# reserve this area from DXE phase overwrites.
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfEarlyMemDebugLogBase|0|UINT32|0x7a
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfEarlyMemDebugLogSize|0|UINT32|0x7b
##
# Default size of the memory DEBUG log buffer (in pages).
# The buffer is circular. So, if size is exceeded, older
# messages will be overwritten by more recent messages.
gUefiOvmfPkgTokenSpaceGuid.PcdMemDebugLogPages|32|UINT32|0x7c
[PcdsDynamic, PcdsDynamicEx]
gUefiOvmfPkgTokenSpaceGuid.PcdEmuVariableEvent|0|UINT64|2
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashVariablesEnable|FALSE|BOOLEAN|0x10