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OvmfPkg/PlatformPei: Add XenPublishRamRegions

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This will be called from a unified MemDetect function.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Wei Liu <wei.liu2@citrix.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15203 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Jordan Justen
2014-02-01 21:22:25 +00:00
committed by jljusten
parent b98b4941e2
commit 18f31ada8d
3 changed files with 56 additions and 44 deletions
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41
OvmfPkg/PlatformPei/Platform.c
View File

@@ -34,10 +34,6 @@
#include <Guid/MemoryTypeInformation.h>
#include <Ppi/MasterBootMode.h>
#include <IndustryStandard/Pci22.h>
#include <Guid/XenInfo.h>
#include <IndustryStandard/E820.h>
#include <Library/ResourcePublicationLib.h>
#include <Library/MtrrLib.h>
#include "Platform.h"
#include "Cmos.h"
@@ -172,12 +168,6 @@ XenMemMapInitialization (
VOID
)
{
EFI_E820_ENTRY64 *E820Map;
UINT32 E820EntriesCount;
EFI_STATUS Status;
DEBUG ((EFI_D_INFO, "Using memory map provided by Xen\n"));
//
// Create Memory Type Information HOB
//
@@ -203,36 +193,7 @@ XenMemMapInitialization (
//
AddIoMemoryRangeHob (0x0A0000, BASE_1MB);
//
// Parse RAM in E820 map
//
Status = XenGetE820Map(&E820Map, &E820EntriesCount);
ASSERT_EFI_ERROR (Status);
if (E820EntriesCount > 0) {
EFI_E820_ENTRY64 *Entry;
UINT32 Loop;
for (Loop = 0; Loop < E820EntriesCount; Loop++) {
Entry = E820Map + Loop;
//
// Only care about RAM
//
if (Entry->Type != EfiAcpiAddressRangeMemory) {
continue;
}
if (Entry->BaseAddr >= BASE_4GB) {
AddUntestedMemoryBaseSizeHob (Entry->BaseAddr, Entry->Length);
} else {
AddMemoryBaseSizeHob (Entry->BaseAddr, Entry->Length);
}
MtrrSetMemoryAttribute (Entry->BaseAddr, Entry->Length, CacheWriteBack);
}
}
XenPublishRamRegions ();
}

7
OvmfPkg/PlatformPei/Platform.h
View File

@@ -86,10 +86,9 @@ XenDetect (
extern BOOLEAN mXen;
EFI_STATUS
XenGetE820Map (
EFI_E820_ENTRY64 **Entries,
UINT32 *Count
VOID
XenPublishRamRegions (
VOID
);
#endif // _PLATFORM_PEI_H_INCLUDED_

52
OvmfPkg/PlatformPei/Xen.c
View File

@@ -27,6 +27,9 @@
#include <Library/MemoryAllocationLib.h>
#include <Library/PcdLib.h>
#include <Guid/XenInfo.h>
#include <IndustryStandard/E820.h>
#include <Library/ResourcePublicationLib.h>
#include <Library/MtrrLib.h>
#include "Platform.h"
#include "Xen.h"
@@ -149,6 +152,55 @@ XenDetect (
return FALSE;
}
VOID
XenPublishRamRegions (
VOID
)
{
EFI_E820_ENTRY64 *E820Map;
UINT32 E820EntriesCount;
EFI_STATUS Status;
if (!mXen) {
return;
}
DEBUG ((EFI_D_INFO, "Using memory map provided by Xen\n"));
//
// Parse RAM in E820 map
//
Status = XenGetE820Map (&E820Map, &E820EntriesCount);
ASSERT_EFI_ERROR (Status);
if (E820EntriesCount > 0) {
EFI_E820_ENTRY64 *Entry;
UINT32 Loop;
for (Loop = 0; Loop < E820EntriesCount; Loop++) {
Entry = E820Map + Loop;
//
// Only care about RAM
//
if (Entry->Type != EfiAcpiAddressRangeMemory) {
continue;
}
if (Entry->BaseAddr >= BASE_4GB) {
AddUntestedMemoryBaseSizeHob (Entry->BaseAddr, Entry->Length);
} else {
AddMemoryBaseSizeHob (Entry->BaseAddr, Entry->Length);
}
MtrrSetMemoryAttribute (Entry->BaseAddr, Entry->Length, CacheWriteBack);
}
}
}
/**
Perform Xen PEI initialization.