On 26/2/25 18:57, BALATON Zoltan wrote:
On Wed, 26 Feb 2025, Cédric Le Goater wrote:
On 2/26/25 15:12, BALATON Zoltan wrote:
On Wed, 26 Feb 2025, Cédric Le Goater wrote:
VFIO PCI never worked on PPC32 nor ARM, S390x is 64-bit, it might have
worked on i386 long ago but we have no plans to further support VFIO
on any 32-bit host platforms. Restrict to 64-bit host platforms.
Cc: Harsh Prateek Bora <hars...@linux.ibm.com>
Cc: Tony Krowiak <akrow...@linux.ibm.com>
Cc: Eric Farman <far...@linux.ibm.com>
Cc: Eric Auger <eric.au...@redhat.com>
Signed-off-by: Cédric Le Goater <c...@redhat.com>
---
hw/vfio/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/vfio/Kconfig b/hw/vfio/Kconfig
index
7cdba0560aa821c88d3420b36f86020575834202..6ed825429a9151fcdff33e95d1a310210689b258 100644
--- a/hw/vfio/Kconfig
+++ b/hw/vfio/Kconfig
@@ -7,7 +7,7 @@ config VFIO_PCI
default y
select VFIO
select EDID
- depends on LINUX && PCI
+ depends on LINUX && PCI && (AARCH64 || PPC64 || X86_64 || S390X)
Are these defined for the host or target?
host.
Where are these defined? I thought compiling qemu-system-ppc on x64_64
or aarch64 would have PPC defined not X86_64 or AARCH64 but I could well
be missing something.
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
Ah ! I am surprised. Which host and QEMU machine please ?
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.
with pegasos2, amigaone and
mac99 running 32 bit guests (AmigaOS and MacOS). Some people running
older 32 bit Windows versions on pc machine might also use this.
and we are trying to use it for GPU pass through for 32 bit PPC
guests. Please keep that enabled.
As per commit 6d701c9bac1d3571e9ad511e01b27df7237f0b13 "meson: Deprecate
32-bit host support", support will be fully removed in 2 releases and
it doesn't need to be addressed by VFIO.
That's about removing support for compiling QEMU on 32 bit host OSes not
using 32 bit guests with qemu-system-ppc and qemu-system-i386 isn't it?
Regards,
BALATON Zoltan
