int vcpu_initialise(struct vcpu *v)
{
int rc = 0;
BUILD_BUG_ON( sizeof(struct cpu_info) > STACK_SIZE );
v->arch.stack = alloc_xenheap_pages(STACK_ORDER, MEMF_node(vcpu_to_node(v)));
if ( v->arch.stack == NULL )
return -ENOMEM;
v->arch.cpu_info = (struct cpu_info *)(v->arch.stack
+ STACK_SIZE
- sizeof(struct cpu_info));
memset(&v->arch.saved_context, 0, sizeof(v->arch.saved_context));
v->arch.saved_context.sp = (register_t)v->arch.cpu_info;
v->arch.saved_context.pc = (register_t)continue_new_vcpu;
/* Idle VCPUs don't need the rest of this setup */
if ( is_idle_vcpu(v) )
return rc;
v->arch.sctlr = SCTLR_GUEST_INIT;
/*
* By default exposes an SMP system with AFF0 set to the VCPU ID
* TODO: Handle multi-threading processor and cluster
*/
v->arch.vmpidr = MPIDR_SMP | (v->vcpu_id << MPIDR_AFF0_SHIFT);
v->arch.actlr = READ_SYSREG32(ACTLR_EL1);
processor_vcpu_initialise(v);
if ( (rc = vcpu_vgic_init(v)) != 0 )
goto fail;
if ( (rc = vcpu_vtimer_init(v)) != 0 )
goto fail;
return rc;
fail:
vcpu_destroy(v);
return rc;
}
int vcpu_initialise(struct vcpu *v)
{
int rc = 0;
BUILD_BUG_ON( sizeof(struct cpu_info) > STACK_SIZE );
v->arch.stack = alloc_xenheap_pages(STACK_ORDER, MEMF_node(vcpu_to_node(v)));
if ( v->arch.stack == NULL )
return -ENOMEM;
v->arch.cpu_info = (struct cpu_info *)(v->arch.stack
+ STACK_SIZE
- sizeof(struct cpu_info));
memset(&v->arch.saved_context, 0, sizeof(v->arch.saved_context));
v->arch.saved_context.sp = (register_t)v->arch.cpu_info;
v->arch.saved_context.pc = (register_t)continue_new_vcpu;
/* Idle VCPUs don't need the rest of this setup */
if ( is_idle_vcpu(v) )
return rc;
v->arch.sctlr = SCTLR_GUEST_INIT;
v->arch.vmpidr = MPIDR_SMP | vcpuid_to_vaffinity(v->vcpu_id);
v->arch.actlr = READ_SYSREG32(ACTLR_EL1);
processor_vcpu_initialise(v);
if ( (rc = vcpu_vgic_init(v)) != 0 )
goto fail;
if ( (rc = vcpu_vtimer_init(v)) != 0 )
goto fail;
return rc;
fail:
vcpu_destroy(v);
return rc;
}