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| author | Jan Beulich <jbeulich@suse.com> | 2013-02-28 11:09:39 +0100 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2013-02-28 11:09:39 +0100 |
| commit | 8db1e759556d3a3832f92e91d6c848c5ce2d3fa1 (patch) | |
| tree | 4dfe7fd0f989b23a377df70973f569491f618551 /xen/include/asm-x86/mm.h | |
| parent | 703ac3abcfc5f649c038070867ee12c67f730548 (diff) | |
| download | xen-8db1e759556d3a3832f92e91d6c848c5ce2d3fa1.tar.gz xen-8db1e759556d3a3832f92e91d6c848c5ce2d3fa1.tar.bz2 xen-8db1e759556d3a3832f92e91d6c848c5ce2d3fa1.zip | |
x86: rework hypercall argument translation area setup
... using the new per-domain mapping management functions, adding
destroy_perdomain_mapping() to the previously introduced pair.
Rather than using an order-1 Xen heap allocation, use (currently 2)
individual domain heap pages to populate space in the per-domain
mapping area.
Also fix a benign off-by-one mistake in is_compat_arg_xlat_range().
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Keir Fraser <keir@xen.org>
Diffstat (limited to 'xen/include/asm-x86/mm.h')
| -rw-r--r-- | xen/include/asm-x86/mm.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/xen/include/asm-x86/mm.h b/xen/include/asm-x86/mm.h index 3c65a7c1aa..fd9d654433 100644 --- a/xen/include/asm-x86/mm.h +++ b/xen/include/asm-x86/mm.h @@ -579,6 +579,8 @@ int map_ldt_shadow_page(unsigned int); int create_perdomain_mapping(struct domain *, unsigned long va, unsigned int nr, l1_pgentry_t **, struct page_info **); +void destroy_perdomain_mapping(struct domain *, unsigned long va, + unsigned int nr); void free_perdomain_mappings(struct domain *); extern int memory_add(unsigned long spfn, unsigned long epfn, unsigned int pxm); |