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authorCarsten Otte <cotte@de.ibm.com>2012-01-04 10:25:23 +0100
committerAvi Kivity <avi@redhat.com>2012-03-05 14:52:19 +0200
commit5b1c1493afe8d69909f9df3221bb2fffdf479f4a (patch)
treef64fa2be60cb44e4d9cb7cc9338b4dabba65348a /arch/x86/kvm
parente168bf8de33e16a909df2401af1f7d419c5780de (diff)
KVM: s390: ucontrol: export SIE control block to user
This patch exports the s390 SIE hardware control block to userspace via the mapping of the vcpu file descriptor. In order to do so, a new arch callback named kvm_arch_vcpu_fault is introduced for all architectures. It allows to map architecture specific pages. Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
-rw-r--r--arch/x86/kvm/x86.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 06925b4bcc2..a3ce196d21f 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2814,6 +2814,11 @@ out:
return r;
}
+int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf)
+{
+ return VM_FAULT_SIGBUS;
+}
+
static int kvm_vm_ioctl_set_tss_addr(struct kvm *kvm, unsigned long addr)
{
int ret;