Commit-ID: 42efb1abf4ebebeedd14af34c073e673923e2898
Gitweb: http://git.kernel.org/tip/42efb1abf4ebebeedd14af34c073e673923e2898
Author: Sasha Levin <levinsasha928@xxxxxxxxx>
AuthorDate: Wed, 14 Dec 2011 08:37:25 +0200
Committer: Pekka Enberg <penberg@xxxxxxxxxx>
CommitDate: Wed, 14 Dec 2011 21:29:50 +0200
kvm tools: Add kvm__has_cap() to check whether a cap is available on the host
Signed-off-by: Sasha Levin <levinsasha928@xxxxxxxxx>
Signed-off-by: Pekka Enberg <penberg@xxxxxxxxxx>
---
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 0bec7a9..35bb400 100644
--- a/tools/kvm/include/kvm/kvm.h
+++ b/tools/kvm/include/kvm/kvm.h
@@ -81,4 +81,6 @@ 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 3fb46f6..9583ab2 100644
--- a/tools/kvm/kvm.c
+++ b/tools/kvm/kvm.c
@@ -520,3 +520,8 @@ 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;
+}
--
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