xen/arm: Rename p2m_map_foreign to p2m_map_foreign_rw

A follow-up patch will introduce another type of foreign mapping. Rename
the type to make clear it is only used for read-write mapping.

No functional changes intended.

Signed-off-by: Julien Grall <julien.grall@arm.com>
Reviewed-by: Andrii Anisov <andrii_anisov@epam.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>

diff --git a/xen/arch/arm/mm.c b/xen/arch/arm/mm.c
index d96a6655ee823cf3dd8a7c107fd41e58c75b6486..7193d83b447dfb257aedd0e6f0ad6c30833f0b6f 100644 (file)
--- a/xen/arch/arm/mm.c
+++ b/xen/arch/arm/mm.c
@@ -1267,7 +1267,7 @@ int xenmem_add_to_physmap_one(
         }
 
         mfn = page_to_mfn(page);
-        t = p2m_map_foreign;
+        t = p2m_map_foreign_rw;
 
         rcu_unlock_domain(od);
         break;

diff --git a/xen/arch/arm/p2m.c b/xen/arch/arm/p2m.c
index 7ae5b2969996e3a9b9220bcb2a25e0b0efed8d63..89279fb590332a2fadd119d1a7a01162ad16b9a1 100644 (file)
--- a/xen/arch/arm/p2m.c
+++ b/xen/arch/arm/p2m.c
@@ -468,7 +468,7 @@ static void p2m_set_permission(lpae_t *e, p2m_type_t t, p2m_access_t a)
         break;
 
     case p2m_iommu_map_rw:
-    case p2m_map_foreign:
+    case p2m_map_foreign_rw:
     case p2m_grant_map_rw:
     case p2m_mmio_direct_dev:
     case p2m_mmio_direct_nc:

diff --git a/xen/include/asm-arm/p2m.h b/xen/include/asm-arm/p2m.h
index 4db8e8709dc8e7a99bf9bca0b2dd864921106a1a..a1aef7b793b6dc507effc0eb5973dca494c66970 100644 (file)
--- a/xen/include/asm-arm/p2m.h
+++ b/xen/include/asm-arm/p2m.h
@@ -115,7 +115,7 @@ typedef enum {
     p2m_mmio_direct_dev,/* Read/write mapping of genuine Device MMIO area */
     p2m_mmio_direct_nc, /* Read/write mapping of genuine MMIO area non-cacheable */
     p2m_mmio_direct_c,  /* Read/write mapping of genuine MMIO area cacheable */
-    p2m_map_foreign,    /* Ram pages from foreign domain */
+    p2m_map_foreign_rw, /* Read/write RAM pages from foreign domain */
     p2m_grant_map_rw,   /* Read/write grant mapping */
     p2m_grant_map_ro,   /* Read-only grant mapping */
     /* The types below are only used to decide the page attribute in the P2M */
@@ -137,10 +137,10 @@ typedef enum {
 
 /* Useful predicates */
 #define p2m_is_ram(_t) (p2m_to_mask(_t) & P2M_RAM_TYPES)
-#define p2m_is_foreign(_t) (p2m_to_mask(_t) & p2m_to_mask(p2m_map_foreign))
+#define p2m_is_foreign(_t) (p2m_to_mask(_t) & p2m_to_mask(p2m_map_foreign_rw))
 #define p2m_is_any_ram(_t) (p2m_to_mask(_t) &                   \
                             (P2M_RAM_TYPES | P2M_GRANT_TYPES |  \
-                             p2m_to_mask(p2m_map_foreign)))
+                             p2m_to_mask(p2m_map_foreign_rw)))
 
 /* All common type definitions should live ahead of this inclusion. */
 #ifdef _XEN_P2M_COMMON_H