diff options
| author | Eric Auger <eric.auger@linaro.org> | 2014-10-31 13:38:18 +0000 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-12-15 12:21:01 +0100 |
| commit | f41389ae3c54bd5e2040e3f95a2872981c3ed965 (patch) | |
| tree | 212d9e2c0a1d7e130a526b66ad10b6edc585284a /hw/intc | |
| parent | 9551ea6991cfb7c777f7943ad69b30d0a4fadac3 (diff) | |
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>
Diffstat (limited to 'hw/intc')
| -rw-r--r-- | hw/intc/openpic_kvm.c | 1 | ||||
| -rw-r--r-- | hw/intc/xics_kvm.c | 1 |
2 files changed, 0 insertions, 2 deletions
diff --git a/hw/intc/openpic_kvm.c b/hw/intc/openpic_kvm.c index 3e2cd189ff..f7cac585a9 100644 --- a/hw/intc/openpic_kvm.c +++ b/hw/intc/openpic_kvm.c @@ -248,7 +248,6 @@ static void kvm_openpic_realize(DeviceState *dev, Error **errp) kvm_irqchip_add_irq_route(kvm_state, i, 0, i); } - kvm_irqfds_allowed = true; kvm_msi_via_irqfd_allowed = true; kvm_gsi_routing_allowed = true; diff --git a/hw/intc/xics_kvm.c b/hw/intc/xics_kvm.c index 20b19e9d4f..c15453f26f 100644 --- a/hw/intc/xics_kvm.c +++ b/hw/intc/xics_kvm.c @@ -448,7 +448,6 @@ static void xics_kvm_realize(DeviceState *dev, Error **errp) } kvm_kernel_irqchip = true; - kvm_irqfds_allowed = true; kvm_msi_via_irqfd_allowed = true; kvm_gsi_direct_mapping = true; |