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| author | Paolo Bonzini <pbonzini@redhat.com> | 2013-05-24 12:59:37 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2013-05-29 16:26:50 +0200 |
| commit | 149f54b53b7666a3facd45e86eece60ce7d3b114 (patch) | |
| tree | 716ff4eeaca8647f328eb06730476d46adbe6bc0 /include/exec/cputlb.h | |
| parent | b018ddf633f77195e9ae859c6d940a334e68879f (diff) | |
| download | focaccia-qemu-149f54b53b7666a3facd45e86eece60ce7d3b114.tar.gz focaccia-qemu-149f54b53b7666a3facd45e86eece60ce7d3b114.zip | |
memory: add address_space_translate
Using phys_page_find to translate an AddressSpace to a MemoryRegionSection is unwieldy. It requires to pass the page index rather than the address, and later memory_region_section_addr has to be called. Replace memory_region_section_addr with a function that does all of it: call phys_page_find, compute the offset within the region, and check how big the current mapping is. This way, a large flat region can be written with a single lookup rather than a page at a time. address_space_translate will also provide a single point where IOMMU forwarding is implemented. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'include/exec/cputlb.h')
| -rw-r--r-- | include/exec/cputlb.h | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/include/exec/cputlb.h b/include/exec/cputlb.h index 733c885a1f..e8216602d0 100644 --- a/include/exec/cputlb.h +++ b/include/exec/cputlb.h @@ -26,8 +26,6 @@ void tlb_unprotect_code_phys(CPUArchState *env, ram_addr_t ram_addr, target_ulong vaddr); void tlb_reset_dirty_range(CPUTLBEntry *tlb_entry, uintptr_t start, uintptr_t length); -MemoryRegionSection *phys_page_find(struct AddressSpaceDispatch *d, - hwaddr index); void cpu_tlb_reset_dirty_all(ram_addr_t start1, ram_addr_t length); void tlb_set_dirty(CPUArchState *env, target_ulong vaddr); extern int tlb_flush_count; @@ -35,11 +33,11 @@ extern int tlb_flush_count; /* exec.c */ void tb_flush_jmp_cache(CPUArchState *env, target_ulong addr); hwaddr memory_region_section_get_iotlb(CPUArchState *env, - MemoryRegionSection *section, - target_ulong vaddr, - hwaddr paddr, - int prot, - target_ulong *address); + MemoryRegionSection *section, + target_ulong vaddr, + hwaddr paddr, hwaddr xlat, + int prot, + target_ulong *address); bool memory_region_is_unassigned(MemoryRegion *mr); #endif |