[Xen-devel] [PATCH v3 11/35] OvmfPkg/XenPlatformPei: Use mXenHvmloaderInfo to get E820

[Anthony PERARD <anthony.perard@xxxxxxxxxx>]

Use the already checked pointer mXenHvmloaderInfo to retrieve the E820
table produced by hvmloader.

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1689
Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
Acked-by: Laszlo Ersek <lersek@xxxxxxxxxx>
---
 OvmfPkg/XenPlatformPei/Xen.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/OvmfPkg/XenPlatformPei/Xen.c b/OvmfPkg/XenPlatformPei/Xen.c
index d6361da306..9c2ff6324d 100644
--- a/OvmfPkg/XenPlatformPei/Xen.c
+++ b/OvmfPkg/XenPlatformPei/Xen.c
@@ -53,18 +53,18 @@ XenGetE820Map (
   UINT32 *Count
   )
 {
-  EFI_XEN_OVMF_INFO *Info =
-    (EFI_XEN_OVMF_INFO *)(UINTN) OVMF_INFO_PHYSICAL_ADDRESS;
+  //
+  // Get E820 produced by hvmloader
+  //
+  if (mXenHvmloaderInfo != NULL) {
+    ASSERT (mXenHvmloaderInfo->E820 < MAX_ADDRESS);
+    *Entries = (EFI_E820_ENTRY64 *)(UINTN) mXenHvmloaderInfo->E820;
+    *Count = mXenHvmloaderInfo->E820EntriesCount;
 
-  if (AsciiStrCmp ((CHAR8 *) Info->Signature, "XenHVMOVMF")) {
-    return EFI_NOT_FOUND;
+    return EFI_SUCCESS;
   }
 
-  ASSERT (Info->E820 < MAX_ADDRESS);
-  *Entries = (EFI_E820_ENTRY64 *)(UINTN) Info->E820;
-  *Count = Info->E820EntriesCount;
-
-  return EFI_SUCCESS;
+  return EFI_NOT_FOUND;
 }
 
 /**
-- 
Anthony PERARD


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