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| author | Stefano Stabellini <stefano.stabellini@eu.citrix.com> | 2010-06-17 14:22:52 +0100 |
|---|---|---|
| committer | Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> | 2010-07-26 23:13:26 -0700 |
| commit | 5915100106b8f14a38053ad6c03a664d208aeaa2 (patch) | |
| tree | 86117ec2860f0a1d1f16fd778ab2e53722871d33 /include/xen | |
| parent | c1c5413ad58cb73267d328e6020268aa2e50d8ca (diff) | |
| download | linux-5915100106b8f14a38053ad6c03a664d208aeaa2.tar.gz linux-5915100106b8f14a38053ad6c03a664d208aeaa2.tar.bz2 linux-5915100106b8f14a38053ad6c03a664d208aeaa2.zip | |
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.h | 11 |
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 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__ */ |