Moved get_pg_owner() and put_pg_owner() from the arch specific mm.c
source files into the common page_alloc.c source. This was done as
theses functions are now needed by both architectures to support
xentrace on the ARM platform. Forward declarations were added to mm.h.
Signed-off-by: Benjamin Sanda <ben.sa...@dornerworks.com>
---
xen/arch/x86/mm.c | 48 ------------------------------------------------
1 file changed, 48 deletions(-)
diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c
index c997b53..0d695dd 100644
--- a/xen/arch/x86/mm.c
+++ b/xen/arch/x86/mm.c
@@ -2998,54 +2998,6 @@ int new_guest_cr3(unsigned long mfn)
return rc;
}
-static struct domain *get_pg_owner(domid_t domid)
-{
- struct domain *pg_owner = NULL, *curr = current->domain;
-
- if ( likely(domid == DOMID_SELF) )
- {
- pg_owner = rcu_lock_current_domain();
- goto out;
- }
-
- if ( unlikely(domid == curr->domain_id) )
- {
- MEM_LOG("Cannot specify itself as foreign domain");
- goto out;
- }
-
- if ( !is_pvh_domain(curr) && unlikely(paging_mode_translate(curr)) )
- {
- MEM_LOG("Cannot mix foreign mappings with translated domains");
- goto out;
- }
-
- switch ( domid )
- {
- case DOMID_IO:
- pg_owner = rcu_lock_domain(dom_io);
- break;
- case DOMID_XEN:
- pg_owner = rcu_lock_domain(dom_xen);
- break;
- default:
- if ( (pg_owner = rcu_lock_domain_by_id(domid)) == NULL )
- {
- MEM_LOG("Unknown domain '%u'", domid);
- break;
- }
- break;
- }
-
- out:
- return pg_owner;
-}
-
-static void put_pg_owner(struct domain *pg_owner)
-{
- rcu_unlock_domain(pg_owner);
-}
-
static inline int vcpumask_to_pcpumask(
struct domain *d, XEN_GUEST_HANDLE_PARAM(const_void) bmap, cpumask_t
*pmask)
{
--
2.5.0
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