@@ -2372,6 +2372,9 @@ MemTxResult address_space_rw(AddressSpace *as, hwaddr addr, MemTxAttrs attrs,
ptr = qemu_get_ram_ptr(addr1);
memcpy(ptr, buf, l);
invalidate_and_set_dirty(addr1, l);
+ if (kvm_enabled()) {
+ kvm_arch_cache_flush_needed(addr, l, is_write);
+ }
}
} else {
if (!memory_access_is_direct(mr, is_write)) {
@@ -2408,6 +2411,9 @@ MemTxResult address_space_rw(AddressSpace *as, hwaddr addr, MemTxAttrs attrs,
} else {
/* RAM case */
ptr = qemu_get_ram_ptr(mr->ram_addr + addr1);
+ if (kvm_enabled()) {
+ kvm_arch_cache_flush_needed(addr, l, is_write);
+ }
memcpy(buf, ptr, l);
}
}
@@ -2646,6 +2652,14 @@ void *address_space_map(AddressSpace *as,
return bounce.buffer;
}
+ /* Need to be flushed only if we are reading */
+ if (!is_write) {
+ /* Don't flush if it's a cpu_physical_memory_map call */
+ if (kvm_enabled() && as != &address_space_memory) {
+ kvm_arch_cache_flush_needed(addr, l, is_write);
+ }
+ }
+
base = xlat;
raddr = memory_region_get_ram_addr(mr);
@@ -2679,6 +2693,7 @@ void address_space_unmap(AddressSpace *as, void *buffer, hwaddr len,
if (buffer != bounce.buffer) {
MemoryRegion *mr;
ram_addr_t addr1;
+ hwaddr base;
mr = qemu_ram_addr_from_host(buffer, &addr1);
assert(mr != NULL);
@@ -2688,6 +2703,10 @@ void address_space_unmap(AddressSpace *as, void *buffer, hwaddr len,
if (xen_enabled()) {
xen_invalidate_map_cache_entry(buffer);
}
+ if (kvm_enabled() && as != &address_space_memory) {
+ base = object_property_get_int(OBJECT(mr), "addr", NULL);
+ kvm_arch_cache_flush_needed(addr1 + base, access_len, is_write);
+ }
memory_region_unref(mr);
return;
}
Flush the data cache when accesses occur in the guest ram memory. Signed-off-by: Jérémy Fanguède <j.fanguede@virtualopensystems.com> --- exec.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)