[PATCH] roms: Support compile the efi bios for loongarch

[xianglai li]

1.Add edk2-platform submodule
2.Added loongarch UEFI BIOS support to compiled scripts.
3.The cross-compilation toolchain on x86 can be obtained from the link below:
https://github.com/loongson/build-tools/tree/2022.09.06

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Marc-André Lureau" <marcandre.lureau@redhat.com>
Cc: "Daniel P. Berrangé" <berrange@redhat.com>
Cc: Thomas Huth <thuth@redhat.com>
Cc: "Philippe Mathieu-Daudé" <philmd@linaro.org>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Cc: Song Gao <gaosong@loongson.cn>
Cc: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: xianglai li <lixianglai@loongson.cn>
---
 .gitmodules            |  3 +++
 meson.build            |  2 +-
 pc-bios/meson.build    |  2 ++
 roms/edk2-build.config | 14 ++++++++++++++
 roms/edk2-build.py     |  4 ++--
 roms/edk2-platforms    |  1 +
 6 files changed, 23 insertions(+), 3 deletions(-)
 create mode 160000 roms/edk2-platforms

diff --git a/.gitmodules b/.gitmodules
index 73cae4cd4d..0cb57123fa 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -43,3 +43,6 @@
 [submodule "tests/lcitool/libvirt-ci"]
        path = tests/lcitool/libvirt-ci
        url = https://gitlab.com/libvirt/libvirt-ci.git
+[submodule "roms/edk2-platforms"]
+       path = roms/edk2-platforms
+       url = https://github.com/tianocore/edk2-platforms.git
diff --git a/meson.build b/meson.build
index 98e68ef0b1..b398caf2ce 100644
--- a/meson.build
+++ b/meson.build
@@ -153,7 +153,7 @@ if targetos != 'darwin'
   modular_tcg = ['i386-softmmu', 'x86_64-softmmu']
 endif
 
-edk2_targets = [ 'arm-softmmu', 'aarch64-softmmu', 'i386-softmmu', 
'x86_64-softmmu' ]
+edk2_targets = [ 'arm-softmmu', 'aarch64-softmmu', 'i386-softmmu', 
'x86_64-softmmu', 'loongarch64-softmmu' ]
 unpack_edk2_blobs = false
 foreach target : edk2_targets
   if target in target_dirs
diff --git a/pc-bios/meson.build b/pc-bios/meson.build
index a7224ef469..fc73222b6c 100644
--- a/pc-bios/meson.build
+++ b/pc-bios/meson.build
@@ -9,6 +9,8 @@ if unpack_edk2_blobs
     'edk2-i386-vars.fd',
     'edk2-x86_64-code.fd',
     'edk2-x86_64-secure-code.fd',
+    'edk2-loongarch64-code.fd',
+    'edk2-loongarch64-vars.fd',
   ]
 
   foreach f : fds
diff --git a/roms/edk2-build.config b/roms/edk2-build.config
index 66ef9ffcb9..7960c4c2c5 100644
--- a/roms/edk2-build.config
+++ b/roms/edk2-build.config
@@ -1,5 +1,6 @@
 [global]
 core = edk2
+pkgs = edk2-platforms
 
 
####################################################################################
 # options
@@ -122,3 +123,16 @@ plat = RiscVVirtQemu
 dest = ../pc-bios
 cpy1 = FV/RISCV_VIRT.fd  edk2-riscv.fd
 pad1 = edk2-riscv.fd     32m
+
+####################################################################################
+# LoongArch64
+
+[build.loongach64.qemu]
+conf = Platform/Loongson/LoongArchQemuPkg/Loongson.dsc
+arch = LOONGARCH64
+plat = LoongArchQemu
+dest = ../pc-bios
+cpy1 = FV/QEMU_EFI.fd  edk2-loongarch64-code.fd
+pad1 = edk2-loongarch64-code.fd     4m
+cpy2 = FV/QEMU_VARS.fd  edk2-loongarch64-vars.fd
+pad2 = edk2-loongarch64-vars.fd     16m
diff --git a/roms/edk2-build.py b/roms/edk2-build.py
index 870893f7c8..dbd641e51e 100755
--- a/roms/edk2-build.py
+++ b/roms/edk2-build.py
@@ -269,8 +269,8 @@ def prepare_env(cfg):
     # for cross builds
     if binary_exists('arm-linux-gnu-gcc'):
         os.environ['GCC5_ARM_PREFIX'] = 'arm-linux-gnu-'
-    if binary_exists('loongarch64-linux-gnu-gcc'):
-        os.environ['GCC5_LOONGARCH64_PREFIX'] = 'loongarch64-linux-gnu-'
+    if binary_exists('loongarch64-unknown-linux-gnu-gcc'):
+        os.environ['GCC5_LOONGARCH64_PREFIX'] = 
'loongarch64-unknown-linux-gnu-'
 
     hostarch = os.uname().machine
     if binary_exists('aarch64-linux-gnu-gcc') and hostarch != 'aarch64':
diff --git a/roms/edk2-platforms b/roms/edk2-platforms
new file mode 160000
index 0000000000..84ccada592
--- /dev/null
+++ b/roms/edk2-platforms
@@ -0,0 +1 @@
+Subproject commit 84ccada59257a8151a592a416017fbb03b8ed3cf
-- 
2.39.1