On 3/3/25 17:50, Paolo Bonzini wrote:
Il lun 3 mar 2025, 16:05 Cédric Le Goater <c...@redhat.com <mailto:c...@redhat.com>> ha scritto: 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. Uff—I should have said was *only* tested on the 32-bit platforms where it was supposed to have an effect! The problem is with the 64-bit hosts... 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 ? ... Where you were testing the wrong target. :) qemu-system-i386 should still support VFIO if compiled on a 64-bit host, according to the subject.
yep. I have a test case for it now ! on q35 and pc-i440fx machines. Thanks, C.
