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[Qemu-devel] [PULL 16/25] Make memory_region_access_valid() take a MemTx
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PULL 16/25] Make memory_region_access_valid() take a MemTxAttrs argument |
Date: |
Thu, 31 May 2018 15:23:48 +0100 |
As part of plumbing MemTxAttrs down to the IOMMU translate method,
add MemTxAttrs as an argument to memory_region_access_valid().
Its callers either have an attrs value to hand, or don't care
and can use MEMTXATTRS_UNSPECIFIED.
The callsite in flatview_access_valid() is part of a recursive
loop flatview_access_valid() -> memory_region_access_valid() ->
subpage_accepts() -> flatview_access_valid(); we make it pass
MEMTXATTRS_UNSPECIFIED for now, until the next several commits
have plumbed an attrs parameter through the rest of the loop
and we can add an attrs parameter to flatview_access_valid().
Signed-off-by: Peter Maydell <address@hidden>
Reviewed-by: Alex Bennée <address@hidden>
Reviewed-by: Richard Henderson <address@hidden>
Message-id: address@hidden
---
include/exec/memory-internal.h | 3 ++-
exec.c | 4 +++-
hw/s390x/s390-pci-inst.c | 3 ++-
memory.c | 7 ++++---
4 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/include/exec/memory-internal.h b/include/exec/memory-internal.h
index 58399b9318..56c25c0ef7 100644
--- a/include/exec/memory-internal.h
+++ b/include/exec/memory-internal.h
@@ -37,7 +37,8 @@ void flatview_unref(FlatView *view);
extern const MemoryRegionOps unassigned_mem_ops;
bool memory_region_access_valid(MemoryRegion *mr, hwaddr addr,
- unsigned size, bool is_write);
+ unsigned size, bool is_write,
+ MemTxAttrs attrs);
void flatview_add_to_dispatch(FlatView *fv, MemoryRegionSection *section);
AddressSpaceDispatch *address_space_dispatch_new(FlatView *fv);
diff --git a/exec.c b/exec.c
index 718b33921b..6cf97b5d28 100644
--- a/exec.c
+++ b/exec.c
@@ -3468,7 +3468,9 @@ static bool flatview_access_valid(FlatView *fv, hwaddr
addr, int len,
mr = flatview_translate(fv, addr, &xlat, &l, is_write);
if (!memory_access_is_direct(mr, is_write)) {
l = memory_access_size(mr, l, addr);
- if (!memory_region_access_valid(mr, xlat, l, is_write)) {
+ /* When our callers all have attrs we'll pass them through here */
+ if (!memory_region_access_valid(mr, xlat, l, is_write,
+ MEMTXATTRS_UNSPECIFIED)) {
return false;
}
}
diff --git a/hw/s390x/s390-pci-inst.c b/hw/s390x/s390-pci-inst.c
index 02a815fd31..d1a5f79678 100644
--- a/hw/s390x/s390-pci-inst.c
+++ b/hw/s390x/s390-pci-inst.c
@@ -762,7 +762,8 @@ int pcistb_service_call(S390CPU *cpu, uint8_t r1, uint8_t
r3, uint64_t gaddr,
mr = s390_get_subregion(mr, offset, len);
offset -= mr->addr;
- if (!memory_region_access_valid(mr, offset, len, true)) {
+ if (!memory_region_access_valid(mr, offset, len, true,
+ MEMTXATTRS_UNSPECIFIED)) {
s390_program_interrupt(env, PGM_OPERAND, 6, ra);
return 0;
}
diff --git a/memory.c b/memory.c
index fc7f9b782b..279f7c9b4a 100644
--- a/memory.c
+++ b/memory.c
@@ -1347,7 +1347,8 @@ static const MemoryRegionOps ram_device_mem_ops = {
bool memory_region_access_valid(MemoryRegion *mr,
hwaddr addr,
unsigned size,
- bool is_write)
+ bool is_write,
+ MemTxAttrs attrs)
{
int access_size_min, access_size_max;
int access_size, i;
@@ -1416,7 +1417,7 @@ MemTxResult memory_region_dispatch_read(MemoryRegion *mr,
{
MemTxResult r;
- if (!memory_region_access_valid(mr, addr, size, false)) {
+ if (!memory_region_access_valid(mr, addr, size, false, attrs)) {
*pval = unassigned_mem_read(mr, addr, size);
return MEMTX_DECODE_ERROR;
}
@@ -1458,7 +1459,7 @@ MemTxResult memory_region_dispatch_write(MemoryRegion *mr,
unsigned size,
MemTxAttrs attrs)
{
- if (!memory_region_access_valid(mr, addr, size, true)) {
+ if (!memory_region_access_valid(mr, addr, size, true, attrs)) {
unassigned_mem_write(mr, addr, data, size);
return MEMTX_DECODE_ERROR;
}
--
2.17.1
- [Qemu-devel] [PULL 00/25] target-arm queue, Peter Maydell, 2018/05/31
- [Qemu-devel] [PULL 11/25] Make tb_invalidate_phys_addr() take a MemTxAttrs argument, Peter Maydell, 2018/05/31
- [Qemu-devel] [PULL 09/25] Correct CPACR reset value for v7 cores, Peter Maydell, 2018/05/31
- [Qemu-devel] [PULL 12/25] Make address_space_translate{, _cached}() take a MemTxAttrs argument, Peter Maydell, 2018/05/31
- [Qemu-devel] [PULL 10/25] memory.h: Improve IOMMU related documentation, Peter Maydell, 2018/05/31
- [Qemu-devel] [PULL 08/25] xlnx-zdma: Correct mem leaks and memset to zero on desc unaligned errors, Peter Maydell, 2018/05/31
- [Qemu-devel] [PULL 03/25] hw/intc/arm_gicv3: Fix APxR<n> register dispatching, Peter Maydell, 2018/05/31
- [Qemu-devel] [PULL 16/25] Make memory_region_access_valid() take a MemTxAttrs argument,
Peter Maydell <=
- [Qemu-devel] [PULL 13/25] Make address_space_map() take a MemTxAttrs argument, Peter Maydell, 2018/05/31
- [Qemu-devel] [PULL 15/25] Make flatview_extend_translation() take a MemTxAttrs argument, Peter Maydell, 2018/05/31
- [Qemu-devel] [PULL 07/25] arm: fix malloc type mismatch, Peter Maydell, 2018/05/31
- [Qemu-devel] [PULL 06/25] arm: fix qemu crash on startup with -bios option, Peter Maydell, 2018/05/31
- [Qemu-devel] [PULL 04/25] arm_gicv3_kvm: increase clroffset accordingly, Peter Maydell, 2018/05/31
- [Qemu-devel] [PULL 02/25] MAINTAINERS: Add entries for newer MPS2 boards and devices, Peter Maydell, 2018/05/31
- [Qemu-devel] [PULL 18/25] Make flatview_access_valid() take a MemTxAttrs argument, Peter Maydell, 2018/05/31
- [Qemu-devel] [PULL 20/25] Make address_space_get_iotlb_entry() take a MemTxAttrs argument, Peter Maydell, 2018/05/31
- [Qemu-devel] [PULL 21/25] Make flatview_do_translate() take a MemTxAttrs argument, Peter Maydell, 2018/05/31
- [Qemu-devel] [PULL 23/25] vmstate.h: Provide VMSTATE_BOOL_SUB_ARRAY, Peter Maydell, 2018/05/31