Re: [PATCH 0/2] build: fix sparc64 host

[Alex Williamson <alex@shazbot.org>]

On Mon, 20 Jul 2026 22:17:13 +0000
Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com> wrote:

> It was reported that build on sparc64 host is currently broken, due to inclusion
> of asm/kvm.h, which is not present on this platform:
> https://lore.kernel.org/qemu-devel/c3a7cd83-7666-40c5-9baa-ebe64edacab6@tls.msk.ru/

Isn't is sufficient just to remove the stale <linux/kvm.h> include?

I don't know of a case that fails, platforms that support vfio might
actually be a sub-set of those that support KVM, but being dependent on
a KVM supported host has no technical basis.  KVM and VFIO are
independent features where neither should have a hard dependency on the
other.  Thanks,

Alex

> Problem is that we assumed in Kconfig that VFIO is available for all linux
> hosts, which is wrong. It is limited to linux hosts having kvm support.
> Since we already have a meson.build section identifying those hosts, just define
> a new CONFIG_KVM_HOST in host configuration.
> 
> Pierrick Bouvier (2):
>   meson.build: define CONFIG_KVM_HOST
>   hw/vfio: restrict to kvm hosts
> 
>  Kconfig.host    | 3 +++
>  hw/vfio/Kconfig | 8 ++++----
>  meson.build     | 4 ++++
>  3 files changed, 11 insertions(+), 4 deletions(-)
>