qemu: update EFI image to fix an issue on Apple M3

The default EFI image included in QEMU 8.1.3 (edk2-stable202302) does not work on Apple M3:
https://gitlab.com/qemu-project/qemu/-/issues/1990

The issue is reported to be fixed in:
tianocore/edk2@5ce29ae
(included in edk2-stable202305 and later)

Replace the EFI image until QEMU updates it, to rescue M3 users.

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>

Formula/q/qemu.rb

@@ -4,6 +4,7 @@ class Qemu < Formula
   url "https://download.qemu.org/qemu-8.1.3.tar.xz"
   sha256 "43cc176804105586f74f90398f34e9f85787dff400d3b640d81f7779fbe265bb"
   license "GPL-2.0-only"
+  revision 1
   head "https://git.qemu.org/git/qemu.git", branch: "master"
 
   livecheck do
@@ -61,6 +62,19 @@ class Qemu < Formula
     sha256 "81237c7b42dc0ffc8b32a2f5734e3480a3f9a470c50c14a9c4576a2561a35807"
   end
 
+  # The default EFI image included in QEMU 8.1.3 (edk2-stable202302) does not work on Apple M3:
+  # https://gitlab.com/qemu-project/qemu/-/issues/1990
+  #
+  # The issue is reported to be fixed in:
+  # https://github.com/tianocore/edk2/commit/5ce29ae84db340244c3c3299f84713a88dec5171
+  # (included in edk2-stable202305 and later)
+  #
+  # Replace the EFI image until QEMU updates it, to rescue M3 users.
+  resource "efi-aarch64" do
+    url "https://snapshots.linaro.org/components/kernel/leg-virt-tianocore-edk2-upstream/5040/QEMU-AARCH64/RELEASE_CLANGDWARF/QEMU_EFI.fd"
+    sha256 "e5cc7beda96bc07d0e80745c84d648701586f8f1fd11223c3fe725327fd6e20c"
+  end
+
   def install
     ENV["LIBTOOL"] = "glibtool"
 
@@ -97,6 +111,17 @@ def install
 
     system "./configure", *args
     system "make", "V=1", "install"
+
+    # Overwrite edk2-aarch64-code.fd
+    resource("efi-aarch64").stage do
+      # The file has to be padded to 64MiB: https://gitlab.com/qemu-project/qemu/-/blob/v8.1.3/roms/edk2-build.config?ref_type=tags#L113
+      # Otherwise it fails with: `device requires 67108864 bytes, block backend provides 2097152 bytes`
+      File.open("QEMU_EFI.fd", "a") do |file|
+        file.truncate(64 * 1024 * 1024)
+      end
+      rm pkgshare/"edk2-aarch64-code.fd"
+      pkgshare.install "QEMU_EFI.fd" => "edk2-aarch64-code.fd"
+    end
   end
 
   test do