bug: macOS VM fails to start: bundled OVMF_CODE.fd is invalid size (297980 bytes) causing QEMU pflash0 error

[Jvr2022]

I confirm this bug has not already been reported

• I have searched the issues and this bug has not been reported previously

Describe the bug
On Kali (Debian-based) with QEMU 10.2.0 and Quickemu 4.9.8, starting a macOS VM fails because Quickemu/quickget provides an OVMF_CODE.fd in the VM directory that is not a non-zero multiple of 0x1000 bytes. QEMU errors with:

system firmware block device pflash0 has invalid size 297984

This prevents macOS VMs from starting.

To Reproduce
Run quickemu --vm macos-tahoe.conf

quickemu --vm macos-tahoe.conf

Quickemu 4.9.8 using /usr/bin/qemu-system-x86_64 v10.2.0
 - Host:     Kali GNU/Linux Rolling running Linux 6.17.10+kali-amd64 pc-363
 - CPU:      Intel(R) Core(TM) i7-9700F CPU @ 3.00GHz 
 - CPU VM:   host, 1 Socket(s), 4 Core(s), 1 Thread(s)
 - MSR:      WARNING! Ignoring unhandled Model-Specific Registers is disabled.

             echo 1 | sudo tee /sys/module/kvm/parameters/ignore_msrs

             If you are unable to run macOS or Windows VMs then run the above 👆
             This will enable ignoring of unhandled MSRs until you reboot the host.
             You can make this change permanent by running: 'quickemu --ignore-msrs-always'
 - RAM VM:   8G RAM
 - BOOT:     EFI (macOS), OVMF (OVMF_CODE.fd), SecureBoot (off).
 - Disk:     macos-tahoe/disk.qcow2 (128G)
             Looks unused, booting from macos-tahoe/RecoveryImage.img
 - Recovery: macos-tahoe/RecoveryImage.img
 - Display:  SDL, VGA, GL (on), VirGL (off) @ (1280 x 800)
 - Sound:    intel-hda (hda-micro)
 - ssh:      On host:  ssh user@localhost -p 22220
 - 9P:       On guest: sudo mount_9p Public-joshua
 - 9P:       On host:  chmod 777 /home/joshua/Public
             Required for macOS integration 👆
 - smbd:     On guest: smb://10.0.2.4/qemu
 - Network:  User (virtio-net-pci)
 - Monitor:  On host:  socat -,echo=0,icanon=0 unix-connect:macos-tahoe/macos-tahoe-monitor.socket
 - Serial:   On host:  socat -,echo=0,icanon=0 unix-connect:macos-tahoe/macos-tahoe-serial.socket
 - Process:  ERROR! Failed to start macos-tahoe.conf as macos-tahoe

qemu-system-x86_64: system firmware block device pflash0 has invalid size 297984
qemu-system-x86_64: info: its size must be a non-zero multiple of 0x1000

Expected behaviour
The vm should start.

[decker502]

#1854