[PATCH 1/2] kvm tools: Add kvm__has_cap() to check whether a cap is available on the host

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Signed-off-by: Sasha Levin <levinsasha928@xxxxxxxxx>
---
 tools/kvm/include/kvm/kvm.h |    2 ++
 tools/kvm/kvm.c             |    5 +++++
 2 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/tools/kvm/include/kvm/kvm.h b/tools/kvm/include/kvm/kvm.h
index 7159952..d24b70a 100644
--- a/tools/kvm/include/kvm/kvm.h
+++ b/tools/kvm/include/kvm/kvm.h
@@ -79,4 +79,6 @@ static inline void *guest_flat_to_host(struct kvm *kvm, unsigned long offset)
 	return kvm->ram_start + offset;
 }
 
+bool kvm__has_cap(struct kvm *kvm, u32 cap);
+
 #endif /* KVM__KVM_H */
diff --git a/tools/kvm/kvm.c b/tools/kvm/kvm.c
index 35ca2c5..a2f7a89 100644
--- a/tools/kvm/kvm.c
+++ b/tools/kvm/kvm.c
@@ -517,3 +517,8 @@ void kvm__notify_paused(void)
 	mutex_lock(&pause_lock);
 	mutex_unlock(&pause_lock);
 }
+
+bool kvm__has_cap(struct kvm *kvm, u32 cap)
+{
+	return ioctl(kvm->sys_fd, KVM_CHECK_EXTENSION, cap) == 0;
+}
-- 
1.7.8

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