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authorPaolo Bonzini <pbonzini@redhat.com>2023-10-17 13:34:50 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2023-10-25 17:35:15 +0200
commita788260b2000f1fe826885c06f2a34df1c5b335c (patch)
treea1655d1f5fa9978cea555837b1479ffa48a901f3 /include
parentcc5e719e2c8086c61bdd9114f42095f8d5b1b0db (diff)
downloadfocaccia-qemu-a788260b2000f1fe826885c06f2a34df1c5b335c.tar.gz
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kvm: require KVM_IRQFD for kernel irqchip
KVM_IRQFD was introduced in Linux 2.6.32, and since then it has always been
available on architectures that support an in-kernel interrupt controller.
We can require it unconditionally.

Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/sysemu/kvm.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h
index 93dccf5dd9..575dee53b3 100644
--- a/include/sysemu/kvm.h
+++ b/include/sysemu/kvm.h
@@ -37,7 +37,6 @@ extern bool kvm_split_irqchip;
 extern bool kvm_async_interrupts_allowed;
 extern bool kvm_halt_in_kernel_allowed;
 extern bool kvm_eventfds_allowed;
-extern bool kvm_irqfds_allowed;
 extern bool kvm_resamplefds_allowed;
 extern bool kvm_msi_via_irqfd_allowed;
 extern bool kvm_gsi_routing_allowed;
@@ -102,8 +101,10 @@ extern bool kvm_msi_use_devid;
  * Returns: true if we can use irqfds to inject interrupts into
  * a KVM CPU (ie the kernel supports irqfds and we are running
  * with a configuration where it is meaningful to use them).
+ *
+ * Always available if running with in-kernel irqchip.
  */
-#define kvm_irqfds_enabled() (kvm_irqfds_allowed)
+#define kvm_irqfds_enabled() kvm_irqchip_in_kernel()
 
 /**
  * kvm_resamplefds_enabled:
@@ -167,7 +168,6 @@ extern bool kvm_msi_use_devid;
 #define kvm_async_interrupts_enabled() (false)
 #define kvm_halt_in_kernel() (false)
 #define kvm_eventfds_enabled() (false)
-#define kvm_irqfds_enabled() (false)
 #define kvm_resamplefds_enabled() (false)
 #define kvm_msi_via_irqfd_enabled() (false)
 #define kvm_gsi_routing_allowed() (false)