static void
pefs_aesni_uninit(struct pefs_alg *pa)
{
struct fpu_kern_ctx *fpu_ctx;
u_int cpuid;
CPU_FOREACH(cpuid) {
fpu_ctx = (void *)atomic_swap_ptr(
(volatile void *)DPCPU_ID_PTR(cpuid, pefs_aesni_fpu),
(uintptr_t)NULL);
if (fpu_ctx != NULL)
fpu_kern_free_ctx(fpu_ctx);
}
}
static int
pefs_aesni_keysetup(const struct pefs_session *xses,
struct pefs_ctx *xctx, const uint8_t *key, uint32_t keybits)
{
const struct pefs_aesni_ses *ses = &xses->o.ps_aesni;
struct pefs_aesni_ctx *ctx = &xctx->o.pctx_aesni;
struct fpu_kern_ctx *tmpctx = NULL;
switch (keybits) {
case 128:
ctx->rounds = AES128_ROUNDS;
break;
case 192:
ctx->rounds = AES192_ROUNDS;
break;
case 256:
ctx->rounds = AES256_ROUNDS;
break;
default:
printf("pefs: AESNI: invalid key length: %d", keybits);
return (EINVAL);
}
if (ses->fpu_saved < 0) {
tmpctx = fpu_kern_alloc_ctx(FPU_KERN_NORMAL);
if (tmpctx == NULL)
return (ENOMEM);
fpu_kern_enter(curthread, tmpctx, FPU_KERN_NORMAL);
}
aesni_set_enckey(key, ctx->enc_schedule, ctx->rounds);
aesni_set_deckey(ctx->enc_schedule, ctx->dec_schedule, ctx->rounds);
rijndael_set_key(&ctx->sw, key, keybits);
if (tmpctx != NULL) {
fpu_kern_leave(curthread, tmpctx);
fpu_kern_free_ctx(tmpctx);
}
return (0);
}
int
windrv_libfini(void)
{
struct drvdb_ent *d;
#ifdef __amd64__
struct fpu_cc_ent *ent;
#endif
mtx_lock(&drvdb_mtx);
while(STAILQ_FIRST(&drvdb_head) != NULL) {
d = STAILQ_FIRST(&drvdb_head);
STAILQ_REMOVE_HEAD(&drvdb_head, link);
free(d, M_DEVBUF);
}
mtx_unlock(&drvdb_mtx);
RtlFreeUnicodeString(&fake_pci_driver.dro_drivername);
RtlFreeUnicodeString(&fake_pccard_driver.dro_drivername);
mtx_destroy(&drvdb_mtx);
#ifdef __i386__
smp_rendezvous(NULL, x86_oldldt, NULL, NULL);
ExFreePool(my_tids);
#endif
#ifdef __amd64__
while ((ent = LIST_FIRST(&fpu_free_head)) != NULL) {
LIST_REMOVE(ent, entries);
fpu_kern_free_ctx(ent->ctx);
free(ent, M_DEVBUF);
}
mtx_destroy(&fpu_free_mtx);
ent = LIST_FIRST(&fpu_busy_head);
KASSERT(ent == NULL, ("busy fpu context list is not empty"));
mtx_destroy(&fpu_busy_mtx);
#endif
return (0);
}
static void
random_nehemiah_deinit(void)
{
fpu_kern_free_ctx(fpu_ctx_save);
}
