60 lines
1.3 KiB
Diff
60 lines
1.3 KiB
Diff
Add API to assign/deassign irqfd to kvm.
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Add stub so that users do not have to use
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ifdefs.
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Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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---
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kvm-all.c | 19 +++++++++++++++++++
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kvm.h | 10 ++++++++++
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2 files changed, 29 insertions(+), 0 deletions(-)
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diff --git a/kvm-all.c b/kvm-all.c
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index efdf40c..b3fdf29 100644
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--- a/kvm-all.c
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+++ b/kvm-all.c
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@@ -1122,4 +1122,23 @@ int kvm_set_ioeventfd(uint16_t addr, uint16_t data, int fd, bool assigned)
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}
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#endif
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+#if defined(KVM_IRQFD)
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+int kvm_set_irqfd(int gsi, int fd, bool assigned)
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+{
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+ struct kvm_irqfd irqfd = {
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+ .fd = fd,
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+ .gsi = gsi,
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+ .flags = assigned ? 0 : KVM_IRQFD_FLAG_DEASSIGN,
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+ };
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+ int r;
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+ if (!kvm_irqchip_in_kernel())
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+ return -ENOSYS;
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+
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+ r = kvm_vm_ioctl(kvm_state, KVM_IRQFD, &irqfd);
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+ if (r < 0)
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+ return r;
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+ return 0;
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+}
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+#endif
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+
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#include "qemu-kvm.c"
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diff --git a/kvm.h b/kvm.h
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index e98b5c8..ad8d122 100644
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--- a/kvm.h
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+++ b/kvm.h
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@@ -167,4 +167,14 @@ int kvm_set_ioeventfd(uint16_t data, uint16_t addr, int fd, bool assigned)
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}
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#endif
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+#if defined(KVM_IRQFD) && defined(CONFIG_KVM)
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+int kvm_set_irqfd(int gsi, int fd, bool assigned);
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+#else
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+static inline
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+int kvm_set_irqfd(int gsi, int fd, bool assigned)
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+{
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+ return -ENOSYS;
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+}
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+#endif
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+
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#endif
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--
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1.6.6.144.g5c3af
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