REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3394
Invoke GetPhysicalAddressBits() defined in UefiCpuPkg for CPU physical address
mask calculation and remove the duplicated code in
OvmfPkg\XenPlatformPei\MemDetect.c.
Cc: Ard Biesheuvel <ardb+tianoc...@kernel.org>
Cc: Jiewen Yao <jiewen....@intel.com>
Signed-off-by: Yu Pu <yu...@intel.com>
---
OvmfPkg/XenPlatformPei/MemDetect.c | 11 ++---------
1 file changed, 2 insertions(+), 9 deletions(-)
diff --git a/OvmfPkg/XenPlatformPei/MemDetect.c
b/OvmfPkg/XenPlatformPei/MemDetect.c
index d412d1f4db6f..bd24612c21ef 100644
--- a/OvmfPkg/XenPlatformPei/MemDetect.c
+++ b/OvmfPkg/XenPlatformPei/MemDetect.c
@@ -30,6 +30,7 @@ Module Name:
#include <Library/PciLib.h>
#include <Library/PeimEntryPoint.h>
#include <Library/ResourcePublicationLib.h>
+#include <Library/UefiCpuLib.h>
#include "Platform.h"
#include "Cmos.h"
@@ -180,15 +181,7 @@ AddressWidthInitialization (
VOID
)
{
- UINT32 RegEax;
-
- AsmCpuid (0x80000000, &RegEax, NULL, NULL, NULL);
- if (RegEax >= 0x80000008) {
- AsmCpuid (0x80000008, &RegEax, NULL, NULL, NULL);
- mPhysMemAddressWidth = (UINT8)RegEax;
- } else {
- mPhysMemAddressWidth = 36;
- }
+ mPhysMemAddressWidth = GetPhysicalAddressBits(NULL, NULL);
//
// IA-32e paging translates 48-bit linear addresses to 52-bit physical
addresses.
--
2.30.0.windows.2
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