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OvmfPkg: Add DEBUG messages to dump the contents of CMOS 

The contents of CMOS on boot can describe some aspects of
the system configuration.  For example, the size of memory
available to qemu/kvm.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11264 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
jljusten 2011-01-21 16:50:31 +00:00
parent 76389e18c0
commit 3ca15914df
1 changed files with 24 additions and 0 deletions
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24
OvmfPkg/PlatformPei/Platform.c
View File

@ -31,6 +31,7 @@
#include <Guid/MemoryTypeInformation.h>
#include "Platform.h"
#include "Cmos.h"
EFI_MEMORY_TYPE_INFORMATION mDefaultMemoryTypeInformation[] = {
{ EfiACPIMemoryNVS, 0x004 },
@ -200,6 +201,27 @@ ReserveEmuVariableNvStore (
}
VOID
DebugDumpCmos (
VOID
)
{
UINTN Loop;
DEBUG ((EFI_D_INFO, "CMOS:\n"));
for (Loop = 0; Loop < 0x80; Loop++) {
if ((Loop % 0x10) == 0) {
DEBUG ((EFI_D_INFO, "%02x:", Loop));
}
DEBUG ((EFI_D_INFO, " %02x", CmosRead8 (Loop)));
if ((Loop % 0x10) == 0xf) {
DEBUG ((EFI_D_INFO, "\n"));
}
}
}
/**
Perform Platform PEI initialization.
@ -220,6 +242,8 @@ InitializePlatform (
DEBUG ((EFI_D_ERROR, "Platform PEIM Loaded\n"));
DebugDumpCmos ();
TopOfMemory = MemDetect ();
ReserveEmuVariableNvStore ();