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Diffstat (limited to 'exec.c')
-rw-r--r--exec.c96
1 files changed, 59 insertions, 37 deletions
diff --git a/exec.c b/exec.c
index ffa1099547..f3fa4e9117 100644
--- a/exec.c
+++ b/exec.c
@@ -478,6 +478,7 @@ address_space_translate_internal(AddressSpaceDispatch *d, hwaddr addr, hwaddr *x
* @is_write: whether the translation operation is for write
* @is_mmio: whether this can be MMIO, set true if it can
* @target_as: the address space targeted by the IOMMU
+ * @attrs: transaction attributes
*
* This function is called from RCU critical section. It is the common
* part of flatview_do_translate and address_space_translate_cached.
@@ -488,7 +489,8 @@ static MemoryRegionSection address_space_translate_iommu(IOMMUMemoryRegion *iomm
hwaddr *page_mask_out,
bool is_write,
bool is_mmio,
- AddressSpace **target_as)
+ AddressSpace **target_as,
+ MemTxAttrs attrs)
{
MemoryRegionSection *section;
hwaddr page_mask = (hwaddr)-1;
@@ -541,6 +543,7 @@ unassigned:
* @is_write: whether the translation operation is for write
* @is_mmio: whether this can be MMIO, set true if it can
* @target_as: the address space targeted by the IOMMU
+ * @attrs: memory transaction attributes
*
* This function is called from RCU critical section
*/
@@ -551,7 +554,8 @@ static MemoryRegionSection flatview_do_translate(FlatView *fv,
hwaddr *page_mask_out,
bool is_write,
bool is_mmio,
- AddressSpace **target_as)
+ AddressSpace **target_as,
+ MemTxAttrs attrs)
{
MemoryRegionSection *section;
IOMMUMemoryRegion *iommu_mr;
@@ -570,7 +574,7 @@ static MemoryRegionSection flatview_do_translate(FlatView *fv,
return address_space_translate_iommu(iommu_mr, xlat,
plen_out, page_mask_out,
is_write, is_mmio,
- target_as);
+ target_as, attrs);
}
if (page_mask_out) {
/* Not behind an IOMMU, use default page size. */
@@ -582,7 +586,7 @@ static MemoryRegionSection flatview_do_translate(FlatView *fv,
/* Called from RCU critical section */
IOMMUTLBEntry address_space_get_iotlb_entry(AddressSpace *as, hwaddr addr,
- bool is_write)
+ bool is_write, MemTxAttrs attrs)
{
MemoryRegionSection section;
hwaddr xlat, page_mask;
@@ -592,7 +596,8 @@ IOMMUTLBEntry address_space_get_iotlb_entry(AddressSpace *as, hwaddr addr,
* but page mask.
*/
section = flatview_do_translate(address_space_to_flatview(as), addr, &xlat,
- NULL, &page_mask, is_write, false, &as);
+ NULL, &page_mask, is_write, false, &as,
+ attrs);
/* Illegal translation */
if (section.mr == &io_mem_unassigned) {
@@ -618,7 +623,8 @@ iotlb_fail:
/* Called from RCU critical section */
MemoryRegion *flatview_translate(FlatView *fv, hwaddr addr, hwaddr *xlat,
- hwaddr *plen, bool is_write)
+ hwaddr *plen, bool is_write,
+ MemTxAttrs attrs)
{
MemoryRegion *mr;
MemoryRegionSection section;
@@ -626,7 +632,7 @@ MemoryRegion *flatview_translate(FlatView *fv, hwaddr addr, hwaddr *xlat,
/* This can be MMIO, so setup MMIO bit. */
section = flatview_do_translate(fv, addr, xlat, plen, NULL,
- is_write, true, &as);
+ is_write, true, &as, attrs);
mr = section.mr;
if (xen_enabled() && memory_access_is_direct(mr, is_write)) {
@@ -898,7 +904,7 @@ static void breakpoint_invalidate(CPUState *cpu, target_ulong pc)
if (phys != -1) {
/* Locks grabbed by tb_invalidate_phys_addr */
tb_invalidate_phys_addr(cpu->cpu_ases[asidx].as,
- phys | (pc & ~TARGET_PAGE_MASK));
+ phys | (pc & ~TARGET_PAGE_MASK), attrs);
}
}
#endif
@@ -1124,6 +1130,7 @@ void cpu_abort(CPUState *cpu, const char *fmt, ...)
struct sigaction act;
sigfillset(&act.sa_mask);
act.sa_handler = SIG_DFL;
+ act.sa_flags = 0;
sigaction(SIGABRT, &act, NULL);
}
#endif
@@ -2539,7 +2546,8 @@ static void notdirty_mem_write(void *opaque, hwaddr ram_addr,
}
static bool notdirty_mem_accepts(void *opaque, hwaddr addr,
- unsigned size, bool is_write)
+ unsigned size, bool is_write,
+ MemTxAttrs attrs)
{
return is_write;
}
@@ -2696,7 +2704,7 @@ static MemTxResult flatview_read(FlatView *fv, hwaddr addr,
static MemTxResult flatview_write(FlatView *fv, hwaddr addr, MemTxAttrs attrs,
const uint8_t *buf, int len);
static bool flatview_access_valid(FlatView *fv, hwaddr addr, int len,
- bool is_write);
+ bool is_write, MemTxAttrs attrs);
static MemTxResult subpage_read(void *opaque, hwaddr addr, uint64_t *data,
unsigned len, MemTxAttrs attrs)
@@ -2762,7 +2770,8 @@ static MemTxResult subpage_write(void *opaque, hwaddr addr,
}
static bool subpage_accepts(void *opaque, hwaddr addr,
- unsigned len, bool is_write)
+ unsigned len, bool is_write,
+ MemTxAttrs attrs)
{
subpage_t *subpage = opaque;
#if defined(DEBUG_SUBPAGE)
@@ -2771,7 +2780,7 @@ static bool subpage_accepts(void *opaque, hwaddr addr,
#endif
return flatview_access_valid(subpage->fv, addr + subpage->base,
- len, is_write);
+ len, is_write, attrs);
}
static const MemoryRegionOps subpage_ops = {
@@ -2845,7 +2854,8 @@ static void readonly_mem_write(void *opaque, hwaddr addr,
}
static bool readonly_mem_accepts(void *opaque, hwaddr addr,
- unsigned size, bool is_write)
+ unsigned size, bool is_write,
+ MemTxAttrs attrs)
{
return is_write;
}
@@ -3149,7 +3159,7 @@ static MemTxResult flatview_write_continue(FlatView *fv, hwaddr addr,
}
l = len;
- mr = flatview_translate(fv, addr, &addr1, &l, true);
+ mr = flatview_translate(fv, addr, &addr1, &l, true, attrs);
}
return result;
@@ -3165,7 +3175,7 @@ static MemTxResult flatview_write(FlatView *fv, hwaddr addr, MemTxAttrs attrs,
MemTxResult result = MEMTX_OK;
l = len;
- mr = flatview_translate(fv, addr, &addr1, &l, true);
+ mr = flatview_translate(fv, addr, &addr1, &l, true, attrs);
result = flatview_write_continue(fv, addr, attrs, buf, len,
addr1, l, mr);
@@ -3236,7 +3246,7 @@ MemTxResult flatview_read_continue(FlatView *fv, hwaddr addr,
}
l = len;
- mr = flatview_translate(fv, addr, &addr1, &l, false);
+ mr = flatview_translate(fv, addr, &addr1, &l, false, attrs);
}
return result;
@@ -3251,7 +3261,7 @@ static MemTxResult flatview_read(FlatView *fv, hwaddr addr,
MemoryRegion *mr;
l = len;
- mr = flatview_translate(fv, addr, &addr1, &l, false);
+ mr = flatview_translate(fv, addr, &addr1, &l, false, attrs);
return flatview_read_continue(fv, addr, attrs, buf, len,
addr1, l, mr);
}
@@ -3322,7 +3332,8 @@ static inline void cpu_physical_memory_write_rom_internal(AddressSpace *as,
rcu_read_lock();
while (len > 0) {
l = len;
- mr = address_space_translate(as, addr, &addr1, &l, true);
+ mr = address_space_translate(as, addr, &addr1, &l, true,
+ MEMTXATTRS_UNSPECIFIED);
if (!(memory_region_is_ram(mr) ||
memory_region_is_romd(mr))) {
@@ -3457,17 +3468,17 @@ static void cpu_notify_map_clients(void)
}
static bool flatview_access_valid(FlatView *fv, hwaddr addr, int len,
- bool is_write)
+ bool is_write, MemTxAttrs attrs)
{
MemoryRegion *mr;
hwaddr l, xlat;
while (len > 0) {
l = len;
- mr = flatview_translate(fv, addr, &xlat, &l, is_write);
+ mr = flatview_translate(fv, addr, &xlat, &l, is_write, attrs);
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)) {
+ if (!memory_region_access_valid(mr, xlat, l, is_write, attrs)) {
return false;
}
}
@@ -3479,23 +3490,24 @@ static bool flatview_access_valid(FlatView *fv, hwaddr addr, int len,
}
bool address_space_access_valid(AddressSpace *as, hwaddr addr,
- int len, bool is_write)
+ int len, bool is_write,
+ MemTxAttrs attrs)
{
FlatView *fv;
bool result;
rcu_read_lock();
fv = address_space_to_flatview(as);
- result = flatview_access_valid(fv, addr, len, is_write);
+ result = flatview_access_valid(fv, addr, len, is_write, attrs);
rcu_read_unlock();
return result;
}
static hwaddr
flatview_extend_translation(FlatView *fv, hwaddr addr,
- hwaddr target_len,
- MemoryRegion *mr, hwaddr base, hwaddr len,
- bool is_write)
+ hwaddr target_len,
+ MemoryRegion *mr, hwaddr base, hwaddr len,
+ bool is_write, MemTxAttrs attrs)
{
hwaddr done = 0;
hwaddr xlat;
@@ -3511,7 +3523,7 @@ flatview_extend_translation(FlatView *fv, hwaddr addr,
len = target_len;
this_mr = flatview_translate(fv, addr, &xlat,
- &len, is_write);
+ &len, is_write, attrs);
if (this_mr != mr || xlat != base + done) {
return done;
}
@@ -3528,7 +3540,8 @@ flatview_extend_translation(FlatView *fv, hwaddr addr,
void *address_space_map(AddressSpace *as,
hwaddr addr,
hwaddr *plen,
- bool is_write)
+ bool is_write,
+ MemTxAttrs attrs)
{
hwaddr len = *plen;
hwaddr l, xlat;
@@ -3543,7 +3556,7 @@ void *address_space_map(AddressSpace *as,
l = len;
rcu_read_lock();
fv = address_space_to_flatview(as);
- mr = flatview_translate(fv, addr, &xlat, &l, is_write);
+ mr = flatview_translate(fv, addr, &xlat, &l, is_write, attrs);
if (!memory_access_is_direct(mr, is_write)) {
if (atomic_xchg(&bounce.in_use, true)) {
@@ -3571,7 +3584,7 @@ void *address_space_map(AddressSpace *as,
memory_region_ref(mr);
*plen = flatview_extend_translation(fv, addr, len, mr, xlat,
- l, is_write);
+ l, is_write, attrs);
ptr = qemu_ram_ptr_length(mr->ram_block, xlat, plen, true);
rcu_read_unlock();
@@ -3615,7 +3628,8 @@ void *cpu_physical_memory_map(hwaddr addr,
hwaddr *plen,
int is_write)
{
- return address_space_map(&address_space_memory, addr, plen, is_write);
+ return address_space_map(&address_space_memory, addr, plen, is_write,
+ MEMTXATTRS_UNSPECIFIED);
}
void cpu_physical_memory_unmap(void *buffer, hwaddr len,
@@ -3655,8 +3669,13 @@ int64_t address_space_cache_init(MemoryRegionCache *cache,
mr = cache->mrs.mr;
memory_region_ref(mr);
if (memory_access_is_direct(mr, is_write)) {
+ /* We don't care about the memory attributes here as we're only
+ * doing this if we found actual RAM, which behaves the same
+ * regardless of attributes; so UNSPECIFIED is fine.
+ */
l = flatview_extend_translation(cache->fv, addr, len, mr,
- cache->xlat, l, is_write);
+ cache->xlat, l, is_write,
+ MEMTXATTRS_UNSPECIFIED);
cache->ptr = qemu_ram_ptr_length(mr->ram_block, cache->xlat, &l, true);
} else {
cache->ptr = NULL;
@@ -3699,7 +3718,7 @@ void address_space_cache_destroy(MemoryRegionCache *cache)
*/
static inline MemoryRegion *address_space_translate_cached(
MemoryRegionCache *cache, hwaddr addr, hwaddr *xlat,
- hwaddr *plen, bool is_write)
+ hwaddr *plen, bool is_write, MemTxAttrs attrs)
{
MemoryRegionSection section;
MemoryRegion *mr;
@@ -3718,7 +3737,7 @@ static inline MemoryRegion *address_space_translate_cached(
section = address_space_translate_iommu(iommu_mr, xlat, plen,
NULL, is_write, true,
- &target_as);
+ &target_as, attrs);
return section.mr;
}
@@ -3733,7 +3752,8 @@ address_space_read_cached_slow(MemoryRegionCache *cache, hwaddr addr,
MemoryRegion *mr;
l = len;
- mr = address_space_translate_cached(cache, addr, &addr1, &l, false);
+ mr = address_space_translate_cached(cache, addr, &addr1, &l, false,
+ MEMTXATTRS_UNSPECIFIED);
flatview_read_continue(cache->fv,
addr, MEMTXATTRS_UNSPECIFIED, buf, len,
addr1, l, mr);
@@ -3750,7 +3770,8 @@ address_space_write_cached_slow(MemoryRegionCache *cache, hwaddr addr,
MemoryRegion *mr;
l = len;
- mr = address_space_translate_cached(cache, addr, &addr1, &l, true);
+ mr = address_space_translate_cached(cache, addr, &addr1, &l, true,
+ MEMTXATTRS_UNSPECIFIED);
flatview_write_continue(cache->fv,
addr, MEMTXATTRS_UNSPECIFIED, buf, len,
addr1, l, mr);
@@ -3848,7 +3869,8 @@ bool cpu_physical_memory_is_io(hwaddr phys_addr)
rcu_read_lock();
mr = address_space_translate(&address_space_memory,
- phys_addr, &phys_addr, &l, false);
+ phys_addr, &phys_addr, &l, false,
+ MEMTXATTRS_UNSPECIFIED);
res = !(memory_region_is_ram(mr) || memory_region_is_romd(mr));
rcu_read_unlock();
generated by cgit v1.2.3 (git 2.26.2) at 2025-03-03 05:55:36 +0000