KVM_CAP_IRQFD and KVM_CAP_IRQFD_RESAMPLE checks
commitf41389ae3c54bd5e2040e3f95a2872981c3ed965
authorEric Auger <eric.auger@linaro.org>
Fri, 31 Oct 2014 13:38:18 +0000 (31 13:38 +0000)
committerPaolo Bonzini <pbonzini@redhat.com>
Mon, 15 Dec 2014 11:21:01 +0000 (15 12:21 +0100)
tree212d9e2c0a1d7e130a526b66ad10b6edc585284a
parent9551ea6991cfb7c777f7943ad69b30d0a4fadac3
KVM_CAP_IRQFD and KVM_CAP_IRQFD_RESAMPLE checks

Compute kvm_irqfds_allowed by checking the KVM_CAP_IRQFD extension.
Remove direct settings in architecture specific files.

Add a new kvm_resamplefds_allowed variable, initialized by
checking the KVM_CAP_IRQFD_RESAMPLE extension. Add a corresponding
kvm_resamplefds_enabled() function.

A special notice for s390 where KVM_CAP_IRQFD was not immediatly
advirtised when irqfd capability was introduced in the kernel.
KVM_CAP_IRQ_ROUTING was advertised instead.

This was fixed in "KVM: s390: announce irqfd capability",
ebc3226202d5956a5963185222982d435378b899 whereas irqfd support
was brought in 84223598778ba08041f4297fda485df83414d57e,
"KVM: s390: irq routing for adapter interrupts".  Both commits
first appear in 3.15 so there should not be any kernel
version impacted by this QEMU modification.

Signed-off-by: Eric Auger <eric.auger@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
hw/intc/openpic_kvm.c
hw/intc/xics_kvm.c
include/sysemu/kvm.h
kvm-all.c
target-i386/kvm.c
target-s390x/kvm.c