static void
xen_hvm_init(enum xen_hvm_init_type init_type)
{
int error;
int i;
if (init_type == XEN_HVM_INIT_CANCELLED_SUSPEND)
return;
error = xen_hvm_init_hypercall_stubs(init_type);
switch (init_type) {
case XEN_HVM_INIT_LATE:
if (error != 0)
return;
/*
* If xen_domain_type is not set at this point
* it means we are inside a (PV)HVM guest, because
* for PVH the guest type is set much earlier
* (see hammer_time_xen).
*/
if (!xen_domain()) {
xen_domain_type = XEN_HVM_DOMAIN;
vm_guest = VM_GUEST_XEN;
}
setup_xen_features();
#ifdef SMP
cpu_ops = xen_hvm_cpu_ops;
#endif
break;
case XEN_HVM_INIT_RESUME:
if (error != 0)
panic("Unable to init Xen hypercall stubs on resume");
/* Clear stale vcpu_info. */
CPU_FOREACH(i)
DPCPU_ID_SET(i, vcpu_info, NULL);
break;
default:
panic("Unsupported HVM initialization type");
}
xen_vector_callback_enabled = 0;
xen_evtchn_needs_ack = false;
xen_hvm_set_callback(NULL);
/*
* On (PV)HVM domains we need to request the hypervisor to
* fill the shared info page, for PVH guest the shared_info page
* is passed inside the start_info struct and is already set, so this
* functions are no-ops.
*/
xen_hvm_init_shared_info_page();
xen_hvm_disable_emulated_devices();
}
static void
pefs_aesni_leave(struct pefs_session *xses)
{
struct pefs_aesni_ses *ses = &xses->o.ps_aesni;
if (ses->fpu_saved <= 0)
return;
fpu_kern_leave(ses->td, ses->fpu_ctx);
DPCPU_ID_SET(ses->fpu_cpuid, pefs_aesni_fpu, ses->fpu_ctx);
}
void
pefs_aesni_init(struct pefs_alg *pa)
{
struct fpu_kern_ctx *fpu_ctx;
u_long enable = 1;
u_int cpuid;
TUNABLE_ULONG_FETCH(AESNI_ENABLE_ENV, &enable);
if (enable != 0 && (cpu_feature2 & CPUID2_AESNI) != 0) {
printf("pefs: AESNI hardware acceleration enabled\n");
pa->pa_uninit = pefs_aesni_uninit;
pa->pa_enter = pefs_aesni_enter;
pa->pa_leave = pefs_aesni_leave;
pa->pa_keysetup = pefs_aesni_keysetup;
pa->pa_encrypt = pefs_aesni_encrypt;
pa->pa_decrypt = pefs_aesni_decrypt;
CPU_FOREACH(cpuid) {
fpu_ctx = fpu_kern_alloc_ctx(FPU_KERN_NORMAL);
DPCPU_ID_SET(cpuid, pefs_aesni_fpu, fpu_ctx);
}
} else
