From 5915100106b8f14a38053ad6c03a664d208aeaa2 Mon Sep 17 00:00:00 2001 From: Stefano Stabellini Date: Thu, 17 Jun 2010 14:22:52 +0100 Subject: 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 Signed-off-by: Jeremy Fitzhardinge --- include/xen/interface/hvm/hvm_op.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/xen/interface') diff --git a/include/xen/interface/hvm/hvm_op.h b/include/xen/interface/hvm/hvm_op.h index 73c8c7eba48d..a4827f46ee97 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__ */ -- cgit v1.2.1