void vpmu_initialise(struct vcpu *v)
{
struct vpmu_struct *vpmu = vcpu_vpmu(v);
uint8_t vendor = current_cpu_data.x86_vendor;
if ( is_pvh_vcpu(v) )
return;
if ( vpmu_is_set(vpmu, VPMU_CONTEXT_ALLOCATED) )
vpmu_destroy(v);
vpmu_clear(vpmu);
vpmu->context = NULL;
switch ( vendor )
{
case X86_VENDOR_AMD:
if ( svm_vpmu_initialise(v, opt_vpmu_enabled) != 0 )
opt_vpmu_enabled = 0;
break;
case X86_VENDOR_INTEL:
if ( vmx_vpmu_initialise(v, opt_vpmu_enabled) != 0 )
opt_vpmu_enabled = 0;
break;
default:
printk("VPMU: Initialization failed. "
"Unknown CPU vendor %d\n", vendor);
opt_vpmu_enabled = 0;
break;
}
}
static int ppro_allocate_msr(struct vcpu *v)
{
struct vpmu_struct *vpmu = vcpu_vpmu(v);
struct arch_msr_pair *msr_content;
msr_content = xzalloc_array(struct arch_msr_pair, num_counters);
if ( !msr_content )
goto out;
vpmu->context = (void *)msr_content;
vpmu_clear(vpmu);
vpmu_set(vpmu, VPMU_PASSIVE_DOMAIN_ALLOCATED);
return 1;
out:
printk(XENLOG_G_WARNING "Insufficient memory for oprofile,"
" oprofile is unavailable on dom%d vcpu%d\n",
v->vcpu_id, v->domain->domain_id);
return 0;
}
