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 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/exec.c b/exec.c
index 9709bc4..6efad6d 100644
--- a/exec.c
+++ b/exec.c
@@ -198,13 +198,19 @@ static MemoryRegionSection
*phys_page_find(AddressSpaceDispatch *d, hwaddr index
return &phys_sections[lp.ptr];
}
+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)
{
MemoryRegionSection *section;
- section = phys_page_find(as->dispatch, addr >> TARGET_PAGE_BITS);
+ section = address_space_lookup_region(as, addr);
/* Compute offset with MemoryRegionSection */
addr -= section->offset_within_address_space;
*plen = MIN(section->size - addr, *plen);
--
1.7.1
