From 6930e42fa2485dc67cd3a5efc75278de45eec6a9 Mon Sep 17 00:00:00 2001 From: Sasha Levin Date: Wed, 14 Dec 2011 08:37:25 +0200 Subject: [PATCH] kvm tools: Add kvm__has_cap() to check whether a cap is available on the host Signed-off-by: Sasha Levin Signed-off-by: Pekka Enberg --- include/kvm/kvm.h | 2 ++ kvm.c | 5 +++++ 2 files changed, 7 insertions(+) diff --git a/include/kvm/kvm.h b/include/kvm/kvm.h index 0bec7a9..35bb400 100644 --- a/include/kvm/kvm.h +++ b/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/kvm.c b/kvm.c index 3fb46f6..9583ab2 100644 --- a/kvm.c +++ b/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; +}