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[Qemu-devel] [PATCH 01/21] memory: Introduce address_space_lookup_region
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH 01/21] memory: Introduce address_space_lookup_region |
Date: |
Thu, 30 May 2013 23:16:49 +0200 |
From: Jan Kiszka <address@hidden>
This introduces a wrapper for phys_page_find (before we complicate
address_space_translate with IOMMU translation).
The function will also include subpage handling.
Signed-off-by: Jan Kiszka <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
exec.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/exec.c b/exec.c
index 5b8b40d..2cd4eb3 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
- [Qemu-devel] [PATCH 00/21] Memory/IOMMU patches, part 3: IOMMU implementation, Paolo Bonzini, 2013/05/30
- [Qemu-devel] [PATCH 01/21] memory: Introduce address_space_lookup_region,
Paolo Bonzini <=
- [Qemu-devel] [PATCH 02/21] memory: move private types to exec.c, Paolo Bonzini, 2013/05/30
- [Qemu-devel] [PATCH 03/21] exec: Allow unaligned address_space_rw, Paolo Bonzini, 2013/05/30
- [Qemu-devel] [PATCH 04/21] exec: Resolve subpages in one step except for IOTLB fills, Paolo Bonzini, 2013/05/30
- [Qemu-devel] [PATCH 05/21] exec: Implement subpage_read/write via address_space_rw, Paolo Bonzini, 2013/05/30
- [Qemu-devel] [PATCH 07/21] Revert "memory: limit sections in the radix tree to the actual address space size", Paolo Bonzini, 2013/05/30