Add API to assign/deassign irqfd to kvm.
Add stub so that users do not have to use
ifdefs.
Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
---
kvm-all.c | 19 +++++++++++++++++++
kvm.h | 10 ++++++++++
2 files changed, 29 insertions(+), 0 deletions(-)
diff --git a/kvm-all.c b/kvm-all.c
index 7b05462..1a15662 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -1200,5 +1200,24 @@ int kvm_set_ioeventfd_pio_word(int fd, uint16_t addr, uint16_t val, bool assign)
}
#endif
+#if defined(KVM_IRQFD)
+int kvm_set_irqfd(int gsi, int fd, bool assigned)
+{
+ struct kvm_irqfd irqfd = {
+ .fd = fd,
+ .gsi = gsi,
+ .flags = assigned ? 0 : KVM_IRQFD_FLAG_DEASSIGN,
+ };
+ int r;
+ if (!kvm_enabled() || !kvm_irqchip_in_kernel())
+ return -ENOSYS;
+
+ r = kvm_vm_ioctl(kvm_state, KVM_IRQFD, &irqfd);
+ if (r < 0)
+ return r;
+ return 0;
+}
+#endif
+
#undef PAGE_SIZE
#include "qemu-kvm.c"
diff --git a/kvm.h b/kvm.h
index 0951380..72dcaca 100644
--- a/kvm.h
+++ b/kvm.h
@@ -180,4 +180,14 @@ int kvm_set_ioeventfd_pio_word(int fd, uint16_t adr, uint16_t val, bool assign)
}
#endif
+#if defined(KVM_IRQFD) && defined(CONFIG_KVM)
+int kvm_set_irqfd(int gsi, int fd, bool assigned);
+#else
+static inline
+int kvm_set_irqfd(int gsi, int fd, bool assigned)
+{
+ return -ENOSYS;
+}
+#endif
+
#endif
--
1.7.0.18.g0d53a5
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