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authorStefano Stabellini <stefano.stabellini@eu.citrix.com>2010-06-17 14:22:52 +0100
committerJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>2010-07-26 23:13:26 -0700
commit5915100106b8f14a38053ad6c03a664d208aeaa2 (patch)
tree86117ec2860f0a1d1f16fd778ab2e53722871d33 /include/xen
parentc1c5413ad58cb73267d328e6020268aa2e50d8ca (diff)
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x86: Call HVMOP_pagetable_dying on exit_mmap.
When a pagetable is about to be destroyed, we notify Xen so that the hypervisor can clear the related shadow pagetable. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Diffstat (limited to 'include/xen')
-rw-r--r--include/xen/interface/hvm/hvm_op.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/xen/interface/hvm/hvm_op.h b/include/xen/interface/hvm/hvm_op.h
index 73c8c7eba48..a4827f46ee9 100644
--- a/include/xen/interface/hvm/hvm_op.h
+++ b/include/xen/interface/hvm/hvm_op.h
@@ -32,4 +32,15 @@ struct xen_hvm_param {
};
DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_param);
+/* Hint from PV drivers for pagetable destruction. */
+#define HVMOP_pagetable_dying 9
+struct xen_hvm_pagetable_dying {
+ /* Domain with a pagetable about to be destroyed. */
+ domid_t domid;
+ /* guest physical address of the toplevel pagetable dying */
+ aligned_u64 gpa;
+};
+typedef struct xen_hvm_pagetable_dying xen_hvm_pagetable_dying_t;
+DEFINE_GUEST_HANDLE_STRUCT(xen_hvm_pagetable_dying_t);
+
#endif /* __XEN_PUBLIC_HVM_HVM_OP_H__ */