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kvm-all: add support for multiple address spaces 

Make kvm_memory_listener_register public, and assign a kernel
address space id to each KVMMemoryListener.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2015-06-18 18:30:14 +02:00
parent 7bbda04c8d
commit 38bfe69180
2 changed files with 10 additions and 7 deletions
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4
include/sysemu/kvm_int.h
View File

@ -25,6 +25,7 @@ typedef struct KVMSlot
typedef struct KVMMemoryListener {
MemoryListener listener;
KVMSlot *slots;
int as_id;
} KVMMemoryListener;
#define TYPE_KVM_ACCEL ACCEL_CLASS_NAME("kvm")
@ -32,4 +33,7 @@ typedef struct KVMMemoryListener {
#define KVM_STATE(obj) \
OBJECT_CHECK(KVMState, (obj), TYPE_KVM_ACCEL)
void kvm_memory_listener_register(KVMState *s, KVMMemoryListener *kml,
AddressSpace *as, int as_id);
#endif

13
kvm-all.c
View File

@ -218,7 +218,7 @@ static int kvm_set_user_memory_region(KVMMemoryListener *kml, KVMSlot *slot)
KVMState *s = kvm_state;
struct kvm_userspace_memory_region mem;
mem.slot = slot->slot;
mem.slot = slot->slot | (kml->as_id << 16);
mem.guest_phys_addr = slot->start_addr;
mem.userspace_addr = (unsigned long)slot->ram;
mem.flags = slot->flags;
@ -420,8 +420,7 @@ static int kvm_physical_sync_dirty_bitmap(KVMMemoryListener *kml,
allocated_size = size;
memset(d.dirty_bitmap, 0, allocated_size);
d.slot = mem->slot;
d.slot = mem->slot | (kml->as_id << 16);
if (kvm_vm_ioctl(s, KVM_GET_DIRTY_LOG, &d) == -1) {
DPRINTF("ioctl failed %d\n", errno);
ret = -1;
@ -884,13 +883,13 @@ static void kvm_io_ioeventfd_del(MemoryListener *listener,
}
}
static void kvm_memory_listener_register(KVMState *s,
KVMMemoryListener *kml,
AddressSpace *as)
void kvm_memory_listener_register(KVMState *s, KVMMemoryListener *kml,
AddressSpace *as, int as_id)
{
int i;
kml->slots = g_malloc0(s->nr_slots * sizeof(KVMSlot));
kml->as_id = as_id;
for (i = 0; i < s->nr_slots; i++) {
kml->slots[i].slot = i;
@ -1608,7 +1607,7 @@ static int kvm_init(MachineState *ms)
s->memory_listener.listener.coalesced_mmio_del = kvm_uncoalesce_mmio_region;
kvm_memory_listener_register(s, &s->memory_listener,
&address_space_memory);
&address_space_memory, 0);
memory_listener_register(&kvm_io_listener,
&address_space_io);