[PATCH v2 12/12] grub-shell: Add flexibility in QEMU firmware handling

[Glenn Washburn]

The current qemu firmware paths for arm-efi and arm64-efi are not available
on Ubuntu/Debian but are hardcoded. Switch to first looking for firmware
files in the source directory and if not found, look for them in locations
where Debian installs them. Prefer to use the firmware file usable with the
QEMU '-bios' option and if not found use the newer pflash firmware files.
This allows supporting older systems more easily. By looking for files in
the source directory first, system firmware files can be overridden and it
can be ensured that the tests can be run regardless of the distro and where
it stores firmware files. If no firmware files are found, print an error
message telling the user that those files must exist and exit with error.

Signed-off-by: Glenn Washburn <development@efficientek.com>
---
 tests/util/grub-shell.in | 95 ++++++++++++++++++++++++++++++++++++++--
 1 file changed, 91 insertions(+), 4 deletions(-)

diff --git a/tests/util/grub-shell.in b/tests/util/grub-shell.in
index e56506444..5d7926c94 100644
--- a/tests/util/grub-shell.in
+++ b/tests/util/grub-shell.in
@@ -180,21 +180,86 @@ case 
"${grub_modinfo_target_cpu}-${grub_modinfo_platform}" in
        boot=cd
        console=console
        trim=1
-       qemuopts="-bios OVMF-ia32.fd $qemuopts"
+       bios=${srcdir}/OVMF32.fd
+       pflash_code=${srcdir}/OVMF32_CODE.fd
+       pflash_vars=${srcdir}/OVMF32_VARS.fd
+       if [ -f "$bios" ]; then
+           qemuopts="-bios $bios $qemuopts"
+       elif [ -f "$pflash_code" ]; then
+           qemuopts="-drive if=pflash,format=raw,readonly=on,file=$pflash_code 
$qemuopts"
+           qemuopts="-drive if=pflash,format=raw,readonly=on,file=$pflash_vars 
$qemuopts"
+       else
+           bios=/usr/share/qemu/OVMF32.fd
+           pflash_code=/usr/share/OVMF/OVMF32_CODE_4M.secboot.fd
+           pflash_vars=/usr/share/OVMF/OVMF32_VARS_4M.fd
+           if [ -f "$bios" ]; then
+               qemuopts="-bios $bios $qemuopts"
+           elif [ -f "$pflash_code" ]; then
+               qemuopts="-drive 
if=pflash,format=raw,readonly=on,file=$pflash_code $qemuopts"
+               qemuopts="-drive 
if=pflash,format=raw,readonly=on,file=$pflash_vars $qemuopts"
+           else
+               echo "Firmware not found, please make sure $bios or both 
$pflash_code and $pflash_vars exist." >&2
+               exit 1
+           fi
+       fi
+       qemuopts="-machine q35,accel=tcg $qemuopts"
        ;;
     x86_64-efi)
        qemu=qemu-system-x86_64
        boot=cd
        console=console
        trim=1
-       qemuopts="-bios OVMF.fd $qemuopts"
+       bios=${srcdir}/OVMF.fd
+       pflash_code=${srcdir}/OVMF_CODE.fd
+       pflash_vars=${srcdir}/OVMF_VARS.fd
+       if [ -f "$bios" ]; then
+           qemuopts="-bios $bios $qemuopts"
+       elif [ -f "$pflash_code" ]; then
+           qemuopts="-drive if=pflash,format=raw,readonly=on,file=$pflash_code 
$qemuopts"
+           qemuopts="-drive if=pflash,format=raw,readonly=on,file=$pflash_vars 
$qemuopts"
+       else
+           bios=/usr/share/qemu/OVMF.fd
+           pflash_code=/usr/share/OVMF/OVMF_CODE.fd
+           pflash_vars=/usr/share/OVMF/OVMF_VARS.fd
+           if [ -f "$bios" ]; then
+               qemuopts="-bios $bios $qemuopts"
+           elif [ -f "$pflash_code" ]; then
+               qemuopts="-drive 
if=pflash,format=raw,readonly=on,file=$pflash_code $qemuopts"
+               qemuopts="-drive 
if=pflash,format=raw,readonly=on,file=$pflash_vars $qemuopts"
+           else
+               echo "Firmware not found, please make sure $bios or both 
$pflash_code and $pflash_vars exist." >&2
+               exit 1
+           fi
+       fi
        ;;
     arm64-efi)
        qemu=qemu-system-aarch64
        boot=hd
        console=console
        trim=1
-       qemuopts="-machine virt -cpu cortex-a57 -bios 
/usr/share/qemu-efi/QEMU_EFI.fd $qemuopts"
+       bios=${srcdir}/AAVMF.fd
+       pflash_code=${srcdir}/AAVMF_CODE.fd
+       pflash_vars=${srcdir}/AAVMF_VARS.fd
+       if [ -f "$bios" ]; then
+           qemuopts="-bios $bios $qemuopts"
+       elif [ -f "$pflash_code" ]; then
+           qemuopts="-drive if=pflash,format=raw,readonly=on,file=$pflash_code 
$qemuopts"
+           qemuopts="-drive if=pflash,format=raw,readonly=on,file=$pflash_vars 
$qemuopts"
+       else
+           bios=/usr/share/qemu-efi-aarch64/QEMU_EFI.fd
+           pflash_code=/usr/share/AAVMF/AAVMF_CODE.fd
+           pflash_vars=/usr/share/AAVMF/AAVMF_VARS.fd
+           if [ -f "$bios" ]; then
+               qemuopts="-bios $bios $qemuopts"
+           elif [ -f "$pflash_code" ]; then
+               qemuopts="-drive 
if=pflash,format=raw,readonly=on,file=$pflash_code $qemuopts"
+               qemuopts="-drive 
if=pflash,format=raw,readonly=on,file=$pflash_vars $qemuopts"
+           else
+               echo "Firmware not found, please make sure $bios or both 
$pflash_code and $pflash_vars exist." >&2
+               exit 1
+           fi
+       fi
+       qemuopts="-machine virt -cpu cortex-a57 $qemuopts"
        disk="device virtio-blk-device,drive=hd1 -drive if=none,id=hd1,file="
        serial_port=
        ;;
@@ -203,7 +268,29 @@ case "${grub_modinfo_target_cpu}-${grub_modinfo_platform}" 
in
        boot=hd
        console=console
        trim=1
-       qemuopts="-machine virt -bios /usr/share/ovmf-arm/QEMU_EFI.fd $qemuopts"
+       bios=${srcdir}/AAVMF32.fd
+       pflash_code=${srcdir}/AAVMF32_CODE.fd
+       pflash_vars=${srcdir}/AAVMF32_VARS.fd
+       if [ -f "$bios" ]; then
+           qemuopts="-bios $bios $qemuopts"
+       elif [ -f "$pflash_code" ]; then
+           qemuopts="-drive if=pflash,format=raw,readonly=on,file=$pflash_code 
$qemuopts"
+           qemuopts="-drive if=pflash,format=raw,readonly=on,file=$pflash_vars 
$qemuopts"
+       else
+           bios=/usr/share/AAVMF/AAVMF32.fd
+           pflash_code=/usr/share/AAVMF/AAVMF32_CODE.fd
+           pflash_vars=/usr/share/AAVMF/AAVMF32_VARS.fd
+           if [ -f "$bios" ]; then
+               qemuopts="-bios $bios $qemuopts"
+           elif [ -f "$pflash_code" ]; then
+               qemuopts="-drive 
if=pflash,format=raw,readonly=on,file=$pflash_code $qemuopts"
+               qemuopts="-drive 
if=pflash,format=raw,readonly=on,file=$pflash_vars $qemuopts"
+           else
+               echo "Firmware not found, please make sure $bios or both 
$pflash_code and $pflash_vars exist." >&2
+               exit 1
+           fi
+       fi
+       qemuopts="-machine virt $qemuopts"
        disk="device virtio-blk-device,drive=hd1 -drive if=none,id=hd1,file="
        serial_port=efi0
        ;;
-- 
2.27.0