hvf: Add Apple Silicon support

With Apple Silicon available to the masses, it's a good time to add support
for driving its virtualization extensions from QEMU.

This patch adds all necessary architecture specific code to get basic VMs
working, including save/restore.

Known limitations:

  - WFI handling is missing (follows in later patch)
  - No watchpoint/breakpoint support

Signed-off-by: Alexander Graf <agraf@csgraf.de>
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20210916155404.86958-5-agraf@csgraf.de
[PMM: added missing #include]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Alexander Graf 2021-09-16 17:53:58 +02:00 committed by Peter Maydell
parent ce7f5b1c50
commit a1477da3dd
7 changed files with 834 additions and 1 deletions

View file

@ -60,6 +60,10 @@
HVFState *hvf_state;
#ifdef __aarch64__
#define HV_VM_DEFAULT NULL
#endif
/* Memory slots */
hvf_slot *hvf_find_overlap_slot(uint64_t start, uint64_t size)
@ -376,7 +380,11 @@ static int hvf_init_vcpu(CPUState *cpu)
pthread_sigmask(SIG_BLOCK, NULL, &set);
sigdelset(&set, SIG_IPI);
#ifdef __aarch64__
r = hv_vcpu_create(&cpu->hvf->fd, (hv_vcpu_exit_t **)&cpu->hvf->exit, NULL);
#else
r = hv_vcpu_create((hv_vcpuid_t *)&cpu->hvf->fd, HV_VCPU_DEFAULT);
#endif
cpu->vcpu_dirty = 1;
assert_hvf_ok(r);
@ -452,6 +460,7 @@ static void hvf_accel_ops_class_init(ObjectClass *oc, void *data)
AccelOpsClass *ops = ACCEL_OPS_CLASS(oc);
ops->create_vcpu_thread = hvf_start_vcpu_thread;
ops->kick_vcpu_thread = hvf_kick_vcpu_thread;
ops->synchronize_post_reset = hvf_cpu_synchronize_post_reset;
ops->synchronize_post_init = hvf_cpu_synchronize_post_init;