Commit-ID: 9c295bdf93935584839e8b1de23e97898a6b76a0
Gitweb: http://git.kernel.org/tip/9c295bdf93935584839e8b1de23e97898a6b76a0
Author: Sasha Levin <levinsasha928@xxxxxxxxx>
AuthorDate: Thu, 11 Aug 2011 15:43:55 +0300
Committer: Pekka Enberg <penberg@xxxxxxxxxx>
CommitDate: Thu, 11 Aug 2011 16:37:36 +0300
kvm tools: Add kvm__trigger_irq()
Add a helper function to trigger an IRQ.
This function is usefull when an IRQ line has to be raised and lowered
such as when using MSI-X.
Signed-off-by: Sasha Levin <levinsasha928@xxxxxxxxx>
Signed-off-by: Pekka Enberg <penberg@xxxxxxxxxx>
---
tools/kvm/include/kvm/kvm.h | 1 +
tools/kvm/kvm.c | 6 ++++++
2 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/include/kvm/kvm.h b/tools/kvm/include/kvm/kvm.h
index 1cbe3c7..d4fe2a1 100644
--- a/tools/kvm/include/kvm/kvm.h
+++ b/tools/kvm/include/kvm/kvm.h
@@ -63,6 +63,7 @@ void kvm__setup_bios(struct kvm *kvm);
void kvm__start_timer(struct kvm *kvm);
void kvm__stop_timer(struct kvm *kvm);
void kvm__irq_line(struct kvm *kvm, int irq, int level);
+void kvm__irq_trigger(struct kvm *kvm, int irq);
bool kvm__emulate_io(struct kvm *kvm, u16 port, void *data, int direction, int size, u32 count);
bool kvm__emulate_mmio(struct kvm *kvm, u64 phys_addr, u8 *data, u32 len, u8 is_write);
void kvm__register_mem(struct kvm *kvm, u64 guest_phys, u64 size, void *userspace_addr);
diff --git a/tools/kvm/kvm.c b/tools/kvm/kvm.c
index 740851d..30aef3a 100644
--- a/tools/kvm/kvm.c
+++ b/tools/kvm/kvm.c
@@ -676,6 +676,12 @@ void kvm__irq_line(struct kvm *kvm, int irq, int level)
die_perror("KVM_IRQ_LINE failed");
}
+void kvm__irq_trigger(struct kvm *kvm, int irq)
+{
+ kvm__irq_line(kvm, irq, 1);
+ kvm__irq_line(kvm, irq, 0);
+}
+
void kvm__dump_mem(struct kvm *kvm, unsigned long addr, unsigned long size)
{
unsigned char *p;
--
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