[XEN PATCH] tools/firmware/ovmf: Use OvmfXen platform file is exist

[Anthony PERARD <anthony.perard@citrix.com>]

A platform introduced in EDK II named OvmfXen is now the one to use for
Xen instead of OvmfX64. It comes with PVH support.

Also, the Xen support in OvmfX64 is deprecated,
    "deprecation notice: *dynamic* multi-VMM (QEMU vs. Xen) support in OvmfPkg"
    https://edk2.groups.io/g/devel/message/75498

Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
---

PVH support isn't working at the moment, but that's just a detail :-)
---
 tools/firmware/ovmf-makefile | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/tools/firmware/ovmf-makefile b/tools/firmware/ovmf-makefile
index 55f999214545..637ee509c366 100644
--- a/tools/firmware/ovmf-makefile
+++ b/tools/firmware/ovmf-makefile
@@ -17,8 +17,14 @@ all: build
 .PHONY: build
 build:
 	if test -e .git ; then $(GIT) submodule update --init --recursive ; fi
-	OvmfPkg/build.sh -a X64 -b $(TARGET) -n 4
-	cp Build/OvmfX64/$(TARGET)_GCC*/FV/OVMF.fd ovmf.bin
+	set -ex; \
+	if test -e OvmfPkg/OvmfXen.dsc; then \
+	  OvmfPkg/build.sh -a X64 -b $(TARGET) -n 4 -p OvmfPkg/OvmfXen.dsc; \
+	  cp Build/OvmfXen/$(TARGET)_GCC*/FV/OVMF.fd ovmf.bin; \
+	else \
+	  OvmfPkg/build.sh -a X64 -b $(TARGET) -n 4; \
+	  cp Build/OvmfX64/$(TARGET)_GCC*/FV/OVMF.fd ovmf.bin; \
+	fi
 
 .PHONY: clean
 clean:
-- 
Anthony PERARD