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fix: Support 4M qcow2 images (#1749) 

* Initial changes to support qcow2 firmware
This commit is contained in:
Alex Haydock 2025-10-17 21:42:24 +01:00 committed by GitHub
parent 78b938facf
commit aaf00ca76a
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GPG Key ID: B5690EEEBB952194
1 changed files with 25 additions and 5 deletions
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@ -614,6 +614,12 @@ function configure_ram() {
fi
}
function is_firmware_qcow2() {
# Check for the magic bytes that indicate the firmware is in qcow2 format,
# otherwise default to assuming firmware files are in raw format
[ "$(head -c 4 "$1")" = "QFI"$'\xfb' ] && echo "true" || echo "false"
}
function configure_bios() {
# Always Boot macOS using EFI
if [ "${guest_os}" == "macos" ]; then
@ -680,7 +686,8 @@ function configure_bios() {
"${SHARE_PATH}/qemu/ovmf-x86_64-smm-ms-code.bin","${SHARE_PATH}/qemu/ovmf-x86_64-smm-ms-vars.bin" \
"${SHARE_PATH}/qemu/edk2-x86_64-secure-code.fd","${SHARE_PATH}/qemu/edk2-x86_64-code.fd" \
"${SHARE_PATH}/edk2-ovmf/x64/OVMF_CODE.secboot.fd","${SHARE_PATH}/edk2-ovmf/x64/OVMF_VARS.fd" \
"${SHARE_PATH}/edk2/x64/OVMF_CODE.secboot.4m.fd","${SHARE_PATH}/edk2/x64/OVMF_VARS.4m.fd"
"${SHARE_PATH}/edk2/x64/OVMF_CODE.secboot.4m.fd","${SHARE_PATH}/edk2/x64/OVMF_VARS.4m.fd" \
"${SHARE_PATH}/edk2/ovmf/OVMF_CODE_4M.secboot.qcow2","${SHARE_PATH}/edk2/ovmf/OVMF_VARS_4M.secboot.qcow2"
);;
*) # shellcheck disable=SC2054,SC2140
ovmfs=("${SHARE_PATH}/OVMF/OVMF_CODE_4M.fd","${SHARE_PATH}/OVMF/OVMF_VARS_4M.fd" \
@ -691,7 +698,8 @@ function configure_bios() {
"${SHARE_PATH}/qemu/ovmf-x86_64-4m-code.bin","${SHARE_PATH}/qemu/ovmf-x86_64-4m-vars.bin" \
"${SHARE_PATH}/qemu/edk2-x86_64-code.fd","${SHARE_PATH}/qemu/edk2-x86_64-code.fd" \
"${SHARE_PATH}/edk2-ovmf/x64/OVMF_CODE.fd","${SHARE_PATH}/edk2-ovmf/x64/OVMF_VARS.fd" \
"${SHARE_PATH}/edk2/x64/OVMF_CODE.4m.fd","${SHARE_PATH}/edk2/x64/OVMF_VARS.4m.fd"
"${SHARE_PATH}/edk2/x64/OVMF_CODE.4m.fd","${SHARE_PATH}/edk2/x64/OVMF_VARS.4m.fd" \
"${SHARE_PATH}/edk2/ovmf/OVMF_CODE_4M.qcow2","${SHARE_PATH}/edk2/ovmf/OVMF_VARS_4M.qcow2"
);;
esac
# Attempt each EFI_CODE file one by one, selecting the corresponding code and vars
@ -722,6 +730,14 @@ function configure_bios() {
echo " - EFI: ERROR! EFI_EXTRA_VARS file ${EFI_EXTRA_VARS} does not exist."
exit 1
fi
# Write destination vars file with correct extension
# based on source format of the EFI_EXTRA_VARS file
QCOW2VARS=$(is_firmware_qcow2 "${EFI_EXTRA_VARS}")
if [ "${QCOW2VARS}" = "true" ]; then
EFI_VARS="${VMDIR}/OVMF_VARS.qcow2"
else
EFI_VARS="${VMDIR}/OVMF_VARS.fd"
fi
efi_vars "${EFI_EXTRA_VARS}" "${EFI_VARS}"
fi
@ -740,7 +756,7 @@ function configure_bios() {
EFI_CODE=$(realpath "${EFI_CODE}")
echo "${EFI_CODE}"
fi
BOOT_STATUS="EFI (${guest_os^}), OVMF (${EFI_CODE}), SecureBoot (${secureboot})."
BOOT_STATUS="EFI (${guest_os^}), OVMF (${EFI_CODE}), EFI Vars (${EFI_VARS}), SecureBoot (${secureboot})."
else
BOOT_STATUS="Legacy BIOS (${guest_os^})"
boot="legacy"
@ -1375,10 +1391,14 @@ function vm_boot() {
# Add the disks
# - https://turlucode.com/qemu-disk-io-performance-comparison-native-or-threads-windows-10-version/
if [[ "${boot}" == *"efi"* ]]; then
QCOW2CODE=$(is_firmware_qcow2 "${EFI_CODE}")
QCOW2VARS=$(is_firmware_qcow2 "${EFI_VARS}")
if [ "${QCOW2CODE}" = "true" ]; then EFI_CODE_FORMAT="qcow2"; else EFI_CODE_FORMAT="raw"; fi
if [ "${QCOW2VARS}" = "true" ]; then EFI_VARS_FORMAT="qcow2"; else EFI_VARS_FORMAT="raw"; fi
# shellcheck disable=SC2054
args+=(-global driver=cfi.pflash01,property=secure,value=on
-drive if=pflash,format=raw,unit=0,file="${EFI_CODE}",readonly=on
-drive if=pflash,format=raw,unit=1,file="${EFI_VARS}")
-drive if=pflash,format="${EFI_CODE_FORMAT}",unit=0,file="${EFI_CODE}",readonly=on
-drive if=pflash,format="${EFI_VARS_FORMAT}",unit=1,file="${EFI_VARS}")
fi
if [ -n "${iso}" ] && [ "${guest_os}" == "freedos" ]; then