[Xen-devel] [PATCH v3 19/35] OvmfPkg/XenPlatformPei: Reserve hvmloader's memory only when it has run

[Anthony PERARD <anthony.perard@xxxxxxxxxx>]

Reserve hvmloader's memory only when it has run.

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1689
Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
Acked-by: Laszlo Ersek <lersek@xxxxxxxxxx>
---

Notes:
    v3:
    - fix empty commit message body

 OvmfPkg/XenPlatformPei/Xen.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/OvmfPkg/XenPlatformPei/Xen.c b/OvmfPkg/XenPlatformPei/Xen.c
index a90be7bbeb..37e9cff4b4 100644
--- a/OvmfPkg/XenPlatformPei/Xen.c
+++ b/OvmfPkg/XenPlatformPei/Xen.c
@@ -272,7 +272,9 @@ InitializeXen (
   // Reserve away HVMLOADER reserved memory [0xFC000000,0xFD000000).
   // This needs to match HVMLOADER RESERVED_MEMBASE/RESERVED_MEMSIZE.
   //
-  AddReservedMemoryBaseSizeHob (0xFC000000, 0x1000000, FALSE);
+  if (XenHvmloaderDetected ()) {
+    AddReservedMemoryBaseSizeHob (0xFC000000, 0x1000000, FALSE);
+  }
 
   PcdStatus = PcdSetBoolS (PcdPciDisableBusEnumeration, TRUE);
   ASSERT_RETURN_ERROR (PcdStatus);
-- 
Anthony PERARD


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