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authorPaul Mackerras <paulus@samba.org>2014-06-02 11:03:00 +1000
committerAlexander Graf <agraf@suse.de>2014-07-28 15:22:18 +0200
commitae2113a4f1a6cd5a3cd3d75f394547922758e9ac (patch)
tree59a1dbf6369d853d0ad76c62a0333c47bb8992d0 /arch/powerpc/kvm/book3s.c
parent699a0ea0823d32030b0666b28ff8633960f7ffa7 (diff)
downloadtalos-op-linux-ae2113a4f1a6cd5a3cd3d75f394547922758e9ac.tar.gz
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KVM: PPC: Book3S: Allow only implemented hcalls to be enabled or disabled
This adds code to check that when the KVM_CAP_PPC_ENABLE_HCALL capability is used to enable or disable in-kernel handling of an hcall, that the hcall is actually implemented by the kernel. If not an EINVAL error is returned. This also checks the default-enabled list of hcalls and prints a warning if any hcall there is not actually implemented. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'arch/powerpc/kvm/book3s.c')
-rw-r--r--arch/powerpc/kvm/book3s.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index 90aa5c750e08..bd75902b38ba 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -925,6 +925,11 @@ int kvmppc_core_check_processor_compat(void)
return 0;
}
+int kvmppc_book3s_hcall_implemented(struct kvm *kvm, unsigned long hcall)
+{
+ return kvm->arch.kvm_ops->hcall_implemented(hcall);
+}
+
static int kvmppc_book3s_init(void)
{
int r;
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