diff mbox series

[v9,10/13] xen/arm: use domain memory to allocate p2m page tables

Message ID 20241025095014.42376-11-carlo.nonato@minervasys.tech (mailing list archive)
State New
Headers show
Series Arm cache coloring | expand

Commit Message

Carlo Nonato Oct. 25, 2024, 9:50 a.m. UTC 
Cache colored domains can benefit from having p2m page tables allocated
with the same coloring schema so that isolation can be achieved also for
those kind of memory accesses.
In order to do that, the domain struct is passed to the allocator and the
MEMF_no_owner flag is used.

This will be useful also when NUMA will be supported on Arm.

Signed-off-by: Carlo Nonato <carlo.nonato@minervasys.tech>
Acked-by: Julien Grall <julien@xen.org>
---
v9:
- no changes
v8:
- no changes
v7:
- no changes
v6:
- Carlo Nonato as the only signed-off-by
v5:
- new patch
---
 xen/arch/arm/mmu/p2m.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/xen/arch/arm/mmu/p2m.c b/xen/arch/arm/mmu/p2m.c
index bfa312cc8a..28df6e5d03 100644
--- a/xen/arch/arm/mmu/p2m.c
+++ b/xen/arch/arm/mmu/p2m.c
@@ -32,7 +32,7 @@  static struct page_info *p2m_alloc_page(struct domain *d)
      */
     if ( is_hardware_domain(d) )
     {
-        pg = alloc_domheap_page(NULL, 0);
+        pg = alloc_domheap_page(d, MEMF_no_owner);
         if ( pg == NULL )
             printk(XENLOG_G_ERR "Failed to allocate P2M pages for hwdom.\n");
     }
@@ -81,7 +81,7 @@  int p2m_set_allocation(struct domain *d, unsigned long pages, bool *preempted)
         if ( d->arch.paging.p2m_total_pages < pages )
         {
             /* Need to allocate more memory from domheap */
-            pg = alloc_domheap_page(NULL, 0);
+            pg = alloc_domheap_page(d, MEMF_no_owner);
             if ( pg == NULL )
             {
                 printk(XENLOG_ERR "Failed to allocate P2M pages.\n");