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[v3,19/35] OvmfPkg/XenPlatformPei: Reserve hvmloader's memory only when it has run

Message ID 20190704144233.27968-20-anthony.perard@citrix.com (mailing list archive)
State Superseded
Headers show
Series Specific platform to run OVMF in Xen PVH and HVM guests | expand

Commit Message

Anthony PERARD July 4, 2019, 2:42 p.m. UTC 
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@citrix.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
---

Notes:
    v3:
    - fix empty commit message body

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

Patch

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);