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authorjljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524>2011-01-21 16:50:31 +0000
committerjljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524>2011-01-21 16:50:31 +0000
commit3ca15914dfb37611a5fbd9907cf3e41bc934d577 (patch)
treec059bfda5d1d37f5e61beb03a0b918a195840c9a /OvmfPkg
parent76389e18c04833a87811550ed6db06f1790aacde (diff)
downloadedk2-3ca15914dfb37611a5fbd9907cf3e41bc934d577.zip
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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
Diffstat (limited to 'OvmfPkg')
-rw-r--r--OvmfPkg/PlatformPei/Platform.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/OvmfPkg/PlatformPei/Platform.c b/OvmfPkg/PlatformPei/Platform.c
index 833f62a..66bb098 100644
--- a/OvmfPkg/PlatformPei/Platform.c
+++ b/OvmfPkg/PlatformPei/Platform.c
@@ -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 ();