On 3/3/25 16:26, BALATON Zoltan wrote:
On Mon, 3 Mar 2025, Cédric Le Goater wrote:
On 3/3/25 15:46, Paolo Bonzini wrote:
On 3/3/25 15:30, Philippe Mathieu-Daudé wrote:
I see PPC is defined in target/ppc/Kconfig so I think these mark the target not the host. Vfio-pci works with qemu-system-ppc
I've seen people do this on x86_64 host
Since this patch does:
LINUX && PCI && (... X86_64 ...)
these users won't see any change.
This is wrong---clearly this patch was never tested on the 32-bit platforms
where it was supposed to have an effect.
euh it was.
With this patch, on 32-bit and 64-bit host systems :
# build/qemu-system-i386 -device vfio-pci,?
# qemu-system-i386: -device vfio-pci,?: Device 'vfio-pci' not found
Same for qemu-system-ppc and qemu-system-arm
What I am doing wrong ?
These QEMU targets aren't deprecated, compiling QEMU on 32 bit hosts is. But
you can still use qemu-system-i386 and qemu-system-ppc on 64 bit hosts and
vfio-pci works with these so it should not be disabled when building these QEMU
targets. I think you meant to do something else not what this patch does.
I meant to remove all VFIO devices on 32-bit host platforms (which
is not needed anymore since 32-bit host platforms are dying anyway).
The patch is actually doing more, as it is removing VFIO devices for
32-bit targets too. That said, I doubt this config is tested at all
on i386. Something to add on the TODO list.
Why are we keeping qemu-system-ppc and qemu-system-i386, and arm,
since qemu-system-ppc64 and qemu-system-x86_64 should be able to
run the same machines ?
Thanks,
C.
Regards,
BALATON Zoltan
