cpus: protect work list with work_mutex

Protect the list of queued work items with something other than
the BQL, as a preparation for running the work items outside it.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2015-07-10 12:32:32 +02:00
parent 0c71d41e2a
commit 376692b9dc
3 changed files with 24 additions and 5 deletions

View file

@ -243,6 +243,8 @@ struct kvm_run;
* @mem_io_pc: Host Program Counter at which the memory was accessed.
* @mem_io_vaddr: Target virtual address at which the memory was accessed.
* @kvm_fd: vCPU file descriptor for KVM.
* @work_mutex: Lock to prevent multiple access to queued_work_*.
* @queued_work_first: First asynchronous work pending.
*
* State of one CPU core or thread.
*/
@ -263,7 +265,6 @@ struct CPUState {
uint32_t host_tid;
bool running;
struct QemuCond *halt_cond;
struct qemu_work_item *queued_work_first, *queued_work_last;
bool thread_kicked;
bool created;
bool stop;
@ -274,6 +275,9 @@ struct CPUState {
int64_t icount_extra;
sigjmp_buf jmp_env;
QemuMutex work_mutex;
struct qemu_work_item *queued_work_first, *queued_work_last;
AddressSpace *as;
struct AddressSpaceDispatch *memory_dispatch;
MemoryListener *tcg_as_listener;