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exec: Explicitly export target AS from address_space_translate_internal

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This adds an AS** parameter to address_space_do_translate()
to make it easier for the next patch to share FlatViews.

This should cause no behavioural change.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <20170921085110.25598-2-aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Alexey Kardashevskiy 2017-09-21 18:50:53 +10:00 committed by Paolo Bonzini
parent 447b0d0b9e
commit e76bb18f7e
1 changed files with 7 additions and 4 deletions
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11
exec.c
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@ -476,7 +476,8 @@ static MemoryRegionSection address_space_do_translate(AddressSpace *as,
hwaddr *xlat,
hwaddr *plen,
bool is_write,
bool is_mmio)
bool is_mmio,
AddressSpace **target_as)
{
IOMMUTLBEntry iotlb;
MemoryRegionSection *section;
@ -503,6 +504,7 @@ static MemoryRegionSection address_space_do_translate(AddressSpace *as,
}
as = iotlb.target_as;
*target_as = iotlb.target_as;
}
*xlat = addr;
@ -525,7 +527,7 @@ IOMMUTLBEntry address_space_get_iotlb_entry(AddressSpace *as, hwaddr addr,
/* This can never be MMIO. */
section = address_space_do_translate(as, addr, &xlat, &plen,
is_write, false);
is_write, false, &as);
/* Illegal translation */
if (section.mr == &io_mem_unassigned) {
@ -548,7 +550,7 @@ IOMMUTLBEntry address_space_get_iotlb_entry(AddressSpace *as, hwaddr addr,
plen -= 1;
return (IOMMUTLBEntry) {
.target_as = section.address_space,
.target_as = as,
.iova = addr & ~plen,
.translated_addr = xlat & ~plen,
.addr_mask = plen,
@ -569,7 +571,8 @@ MemoryRegion *address_space_translate(AddressSpace *as, hwaddr addr,
MemoryRegionSection section;
/* This can be MMIO, so setup MMIO bit. */
section = address_space_do_translate(as, addr, xlat, plen, is_write, true);
section = address_space_do_translate(as, addr, xlat, plen, is_write, true,
&as);
mr = section.mr;
if (xen_enabled() && memory_access_is_direct(mr, is_write)) {