haraldwolff/qemu-patch-raspberry4
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cputlb.c: Use correct address space when looking up MemoryRegionSection

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When looking up the MemoryRegionSection for the new TLB entry in
tlb_set_page_with_attrs(), use cpu_asidx_from_attrs() to determine
the correct address space index for the lookup, and pass it into
address_space_translate_for_iotlb().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
This commit is contained in:
Peter Maydell 2016-01-21 14:15:05 +00:00
parent d7f25a9e6a
commit d7898cda81
3 changed files with 8 additions and 6 deletions
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3
cputlb.c
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@ -356,6 +356,7 @@ void tlb_set_page_with_attrs(CPUState *cpu, target_ulong vaddr,
CPUTLBEntry *te;
hwaddr iotlb, xlat, sz;
unsigned vidx = env->vtlb_index++ % CPU_VTLB_SIZE;
int asidx = cpu_asidx_from_attrs(cpu, attrs);
assert(size >= TARGET_PAGE_SIZE);
if (size != TARGET_PAGE_SIZE) {
@ -363,7 +364,7 @@ void tlb_set_page_with_attrs(CPUState *cpu, target_ulong vaddr,
}
sz = size;
section = address_space_translate_for_iotlb(cpu, paddr, &xlat, &sz);
section = address_space_translate_for_iotlb(cpu, asidx, paddr, &xlat, &sz);
assert(sz >= TARGET_PAGE_SIZE);
#if defined(DEBUG_TLB)

7
exec.c
View file

@ -431,12 +431,13 @@ MemoryRegion *address_space_translate(AddressSpace *as, hwaddr addr,
/* Called from RCU critical section */
MemoryRegionSection *
address_space_translate_for_iotlb(CPUState *cpu, hwaddr addr,
address_space_translate_for_iotlb(CPUState *cpu, int asidx, hwaddr addr,
hwaddr *xlat, hwaddr *plen)
{
MemoryRegionSection *section;
section = address_space_translate_internal(cpu->cpu_ases[0].memory_dispatch,
addr, xlat, plen, false);
AddressSpaceDispatch *d = cpu->cpu_ases[asidx].memory_dispatch;
section = address_space_translate_internal(d, addr, xlat, plen, false);
assert(!section->mr->iommu_ops);
return section;

4
include/exec/exec-all.h
View file

@ -432,8 +432,8 @@ void tlb_set_dirty(CPUState *cpu, target_ulong vaddr);
void tb_flush_jmp_cache(CPUState *cpu, target_ulong addr);
MemoryRegionSection *
address_space_translate_for_iotlb(CPUState *cpu, hwaddr addr, hwaddr *xlat,
hwaddr *plen);
address_space_translate_for_iotlb(CPUState *cpu, int asidx, hwaddr addr,
hwaddr *xlat, hwaddr *plen);
hwaddr memory_region_section_get_iotlb(CPUState *cpu,
MemoryRegionSection *section,
target_ulong vaddr,