From: Jan Kiszka <jan.kis...@siemens.com>
This introduces a wrapper for phys_page_find (before we complicate
address_space_translate with IOMMU translation). This function will
also encapsulate locking and reference counting when we introduce
BQL-free dispatching.
Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
---
exec.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/exec.c b/exec.c
index eb200d0..86efed7 100644
--- a/exec.c
+++ b/exec.c
@@ -203,6 +203,12 @@ bool memory_region_is_unassigned(MemoryRegion *mr)
&& mr != &io_mem_watch;
}
+static MemoryRegionSection *address_space_lookup_region(AddressSpace *as,
+ hwaddr addr)
+{
+ return phys_page_find(as->dispatch, addr >> TARGET_PAGE_BITS);
+}
+
MemoryRegionSection *address_space_translate(AddressSpace *as, hwaddr addr,
hwaddr *xlat, hwaddr *plen,
bool is_write)
@@ -210,7 +216,7 @@ MemoryRegionSection *address_space_translate(AddressSpace
*as, hwaddr addr,
MemoryRegionSection *section;
Int128 diff;
- section = phys_page_find(as->dispatch, addr >> TARGET_PAGE_BITS);
+ section = address_space_lookup_region(as, addr);
/* Compute offset within MemoryRegionSection */
addr -= section->offset_within_address_space;
--
1.8.1.4
