/usr/shared/qemu binaries

[Liviu Ionescu]

I successfully built two QEMU 6.2 binary packages, one with Arm and one with 
RISC-V, each with standalone variants for Linux Intel, Linux Arm, Windows 
Intel, macOS Intel and macOS Arm.

Each package includes only the relevant executables (qemu-system-arm/aarch64 
and respectively qemu-system-riscv32/riscv64).

However I noticed that the `make install` also creates a `.../shared/qemu` 
folder with more than 200 MB of binaries.


Given that my binary packages are intended to be installed as dependencies 
during tests, I think it would be a waste of bandwidth to include all those 
binaries in all distributions.


However I don't know if any of those binaries are internally referred by 
various configuration options, and I'm concerned that simply removing the 
binaries will result in failures to start the emulation. For bare-metal 
emulation I expect none, but for Linux emulation there might be some 
(unfortunately my experience with emulating Linux is poor, and I cannot tell).


If there are such cases, could you suggest which binaries are mandatory for 
inclusion in the QEMU Arm package and which in the QEMU RISC-V package, if any?

Also, is there a configuration option to disable the inclusion of those 
binaries?


Thank you,

Liviu


------------------------------------------------------------------

p.s. For completeness, I added the list of files generated by my build of 
qemu-system-arm/aarch64 6.2.0:


ilg@wks qemu-arm % du -s -m share/qemu  
221     share/qemu

ilg@wks qemu-arm % ls -l share/qemu
total 448560
-rw-r--r--   1 ilg  staff       850 Jan  7 14:50 QEMU,cgthree.bin
-rw-r--r--   1 ilg  staff      1402 Jan  7 14:50 QEMU,tcx.bin
-rw-r--r--   1 ilg  staff      3211 Jan  7 14:50 bamboo.dtb
-rw-r--r--   1 ilg  staff    262144 Jan  7 14:50 bios-256k.bin
-rw-r--r--   1 ilg  staff    131072 Jan  7 14:50 bios-microvm.bin
-rw-r--r--   1 ilg  staff    131072 Jan  7 14:50 bios.bin
-rw-r--r--   1 ilg  staff      9779 Jan  7 14:50 canyonlands.dtb
-rw-r--r--   1 ilg  staff  67108864 Jan  7 14:52 edk2-aarch64-code.fd
-rw-r--r--   1 ilg  staff  67108864 Jan  7 14:52 edk2-arm-code.fd
-rw-r--r--   1 ilg  staff  67108864 Jan  7 14:52 edk2-arm-vars.fd
-rw-r--r--   1 ilg  staff   3653632 Jan  7 14:52 edk2-i386-code.fd
-rw-r--r--   1 ilg  staff   3653632 Jan  7 14:52 edk2-i386-secure-code.fd
-rw-r--r--   1 ilg  staff    540672 Jan  7 14:52 edk2-i386-vars.fd
-rw-r--r--   1 ilg  staff     42903 Jan  7 14:50 edk2-licenses.txt
-rw-r--r--   1 ilg  staff   3653632 Jan  7 14:52 edk2-x86_64-code.fd
-rw-r--r--   1 ilg  staff   3653632 Jan  7 14:52 edk2-x86_64-secure-code.fd
-rw-r--r--   1 ilg  staff    159232 Jan  7 14:50 efi-e1000.rom
-rw-r--r--   1 ilg  staff    159232 Jan  7 14:50 efi-e1000e.rom
-rw-r--r--   1 ilg  staff    159232 Jan  7 14:50 efi-eepro100.rom
-rw-r--r--   1 ilg  staff    157696 Jan  7 14:50 efi-ne2k_pci.rom
-rw-r--r--   1 ilg  staff    157696 Jan  7 14:50 efi-pcnet.rom
-rw-r--r--   1 ilg  staff    160768 Jan  7 14:50 efi-rtl8139.rom
-rw-r--r--   1 ilg  staff    160768 Jan  7 14:50 efi-virtio.rom
-rw-r--r--   1 ilg  staff    156672 Jan  7 14:50 efi-vmxnet3.rom
drwxr-xr-x   8 ilg  staff       256 Jan  7 14:53 firmware
-rw-r--r--   1 ilg  staff    757144 Jan  7 14:50 hppa-firmware.img
drwxr-xr-x  36 ilg  staff      1152 Jan  7 14:53 keymaps
-rw-r--r--   1 ilg  staff      9216 Jan  7 14:50 kvmvapic.bin
-rw-r--r--   1 ilg  staff      1024 Jan  7 14:50 linuxboot.bin
-rw-r--r--   1 ilg  staff      1536 Jan  7 14:50 linuxboot_dma.bin
-rw-r--r--   1 ilg  staff      1024 Jan  7 14:50 multiboot.bin
-rw-r--r--   1 ilg  staff      1024 Jan  7 14:50 multiboot_dma.bin
-rw-r--r--   1 ilg  staff       768 Jan  7 14:50 npcm7xx_bootrom.bin
-rw-r--r--   1 ilg  staff    696912 Jan  7 14:50 openbios-ppc
-rw-r--r--   1 ilg  staff    382048 Jan  7 14:50 openbios-sparc32
-rw-r--r--   1 ilg  staff   1593408 Jan  7 14:50 openbios-sparc64
-rw-r--r--   1 ilg  staff     78680 Jan  7 14:50 
opensbi-riscv32-generic-fw_dynamic.bin
-rw-r--r--   1 ilg  staff    727464 Jan  7 14:50 
opensbi-riscv32-generic-fw_dynamic.elf
-rw-r--r--   1 ilg  staff     75096 Jan  7 14:50 
opensbi-riscv64-generic-fw_dynamic.bin
-rw-r--r--   1 ilg  staff    781264 Jan  7 14:50 
opensbi-riscv64-generic-fw_dynamic.elf
-rw-r--r--   1 ilg  staff    153728 Jan  7 14:50 palcode-clipper
-rw-r--r--   1 ilg  staff      9882 Jan  7 14:50 petalogix-ml605.dtb
-rw-r--r--   1 ilg  staff      8161 Jan  7 14:50 petalogix-s3adsp1800.dtb
-rw-r--r--   1 ilg  staff      1536 Jan  7 14:50 pvh.bin
-rw-r--r--   1 ilg  staff     67072 Jan  7 14:50 pxe-e1000.rom
-rw-r--r--   1 ilg  staff     61440 Jan  7 14:50 pxe-eepro100.rom
-rw-r--r--   1 ilg  staff     61440 Jan  7 14:50 pxe-ne2k_pci.rom
-rw-r--r--   1 ilg  staff     61440 Jan  7 14:50 pxe-pcnet.rom
-rw-r--r--   1 ilg  staff     61440 Jan  7 14:50 pxe-rtl8139.rom
-rw-r--r--   1 ilg  staff     60416 Jan  7 14:50 pxe-virtio.rom
-rw-r--r--   1 ilg  staff     65536 Jan  7 14:50 qboot.rom
-rw-r--r--   1 ilg  staff    154542 Jan  7 14:50 qemu-nsis.bmp
-rw-r--r--   1 ilg  staff     18752 Jan  7 14:50 qemu_vga.ndrv
-rw-r--r--   1 ilg  staff     50936 Jan  7 14:50 s390-ccw.img
-rw-r--r--   1 ilg  staff     79688 Jan  7 14:50 s390-netboot.img
-rw-r--r--   1 ilg  staff      4096 Jan  7 14:50 sgabios.bin
-rw-r--r--   1 ilg  staff   2528128 Jan  7 14:50 skiboot.lid
-rw-r--r--   1 ilg  staff    991744 Jan  7 14:50 slof.bin
-rw-r--r--   1 ilg  staff    401308 Jan  7 14:51 trace-events-all
-rw-r--r--   1 ilg  staff    524288 Jan  7 14:50 u-boot-sam460-20100605.bin
-rw-r--r--   1 ilg  staff    421720 Jan  7 14:50 u-boot.e500
-rw-r--r--   1 ilg  staff     39424 Jan  7 14:50 vgabios-ati.bin
-rw-r--r--   1 ilg  staff     28672 Jan  7 14:50 vgabios-bochs-display.bin
-rw-r--r--   1 ilg  staff     39424 Jan  7 14:50 vgabios-cirrus.bin
-rw-r--r--   1 ilg  staff     39424 Jan  7 14:50 vgabios-qxl.bin
-rw-r--r--   1 ilg  staff     28672 Jan  7 14:50 vgabios-ramfb.bin
-rw-r--r--   1 ilg  staff     39424 Jan  7 14:50 vgabios-stdvga.bin
-rw-r--r--   1 ilg  staff     39424 Jan  7 14:50 vgabios-virtio.bin
-rw-r--r--   1 ilg  staff     39424 Jan  7 14:50 vgabios-vmware.bin
-rw-r--r--   1 ilg  staff     38912 Jan  7 14:50 vgabios.bin