17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 512af71e9Sayznaga * Common Development and Distribution License (the "License"). 612af71e9Sayznaga * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 217c478bd9Sstevel@tonic-gate /* 2260946fe0Smec * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 237c478bd9Sstevel@tonic-gate * Use is subject to license terms. 247c478bd9Sstevel@tonic-gate */ 257c478bd9Sstevel@tonic-gate 267c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 277c478bd9Sstevel@tonic-gate 287c478bd9Sstevel@tonic-gate /* 297c478bd9Sstevel@tonic-gate * Memory special file 307c478bd9Sstevel@tonic-gate */ 317c478bd9Sstevel@tonic-gate 327c478bd9Sstevel@tonic-gate #include <sys/types.h> 337c478bd9Sstevel@tonic-gate #include <sys/param.h> 347c478bd9Sstevel@tonic-gate #include <sys/user.h> 357c478bd9Sstevel@tonic-gate #include <sys/buf.h> 367c478bd9Sstevel@tonic-gate #include <sys/systm.h> 377c478bd9Sstevel@tonic-gate #include <sys/cred.h> 387c478bd9Sstevel@tonic-gate #include <sys/vm.h> 397c478bd9Sstevel@tonic-gate #include <sys/uio.h> 407c478bd9Sstevel@tonic-gate #include <sys/mman.h> 417c478bd9Sstevel@tonic-gate #include <sys/kmem.h> 427c478bd9Sstevel@tonic-gate #include <vm/seg.h> 437c478bd9Sstevel@tonic-gate #include <vm/page.h> 447c478bd9Sstevel@tonic-gate #include <sys/stat.h> 457c478bd9Sstevel@tonic-gate #include <sys/vmem.h> 467c478bd9Sstevel@tonic-gate #include <sys/memlist.h> 477c478bd9Sstevel@tonic-gate #include <sys/bootconf.h> 487c478bd9Sstevel@tonic-gate 497c478bd9Sstevel@tonic-gate #include <vm/seg_vn.h> 507c478bd9Sstevel@tonic-gate #include <vm/seg_dev.h> 517c478bd9Sstevel@tonic-gate #include <vm/seg_kmem.h> 527c478bd9Sstevel@tonic-gate #include <vm/seg_kp.h> 537c478bd9Sstevel@tonic-gate #include <vm/seg_kpm.h> 547c478bd9Sstevel@tonic-gate #include <vm/hat.h> 557c478bd9Sstevel@tonic-gate 567c478bd9Sstevel@tonic-gate #include <sys/conf.h> 577c478bd9Sstevel@tonic-gate #include <sys/mem.h> 587c478bd9Sstevel@tonic-gate #include <sys/types.h> 597c478bd9Sstevel@tonic-gate #include <sys/conf.h> 607c478bd9Sstevel@tonic-gate #include <sys/param.h> 617c478bd9Sstevel@tonic-gate #include <sys/systm.h> 627c478bd9Sstevel@tonic-gate #include <sys/errno.h> 637c478bd9Sstevel@tonic-gate #include <sys/modctl.h> 647c478bd9Sstevel@tonic-gate #include <sys/memlist.h> 657c478bd9Sstevel@tonic-gate #include <sys/ddi.h> 667c478bd9Sstevel@tonic-gate #include <sys/sunddi.h> 677c478bd9Sstevel@tonic-gate #include <sys/debug.h> 68d00f0155Sayznaga #include <sys/fm/protocol.h> 697c478bd9Sstevel@tonic-gate 707aec1d6eScindi #if defined(__sparc) 717c478bd9Sstevel@tonic-gate extern int cpu_get_mem_name(uint64_t, uint64_t *, uint64_t, char *, int, int *); 727c478bd9Sstevel@tonic-gate extern int cpu_get_mem_info(uint64_t, uint64_t, uint64_t *, uint64_t *, 737c478bd9Sstevel@tonic-gate uint64_t *, int *, int *, int *); 747c478bd9Sstevel@tonic-gate extern size_t cpu_get_name_bufsize(void); 75d00f0155Sayznaga extern int cpu_get_mem_sid(char *, char *, int, int *); 76d00f0155Sayznaga extern int cpu_get_mem_addr(char *, char *, uint64_t, uint64_t *); 77ae115bc7Smrj #elif defined(__x86) 787aec1d6eScindi #include <sys/cpu_module.h> 79d00f0155Sayznaga #endif /* __sparc */ 807c478bd9Sstevel@tonic-gate 817c478bd9Sstevel@tonic-gate /* 827c478bd9Sstevel@tonic-gate * Turn a byte length into a pagecount. The DDI btop takes a 837c478bd9Sstevel@tonic-gate * 32-bit size on 32-bit machines, this handles 64-bit sizes for 847c478bd9Sstevel@tonic-gate * large physical-memory 32-bit machines. 857c478bd9Sstevel@tonic-gate */ 867c478bd9Sstevel@tonic-gate #define BTOP(x) ((pgcnt_t)((x) >> _pageshift)) 877c478bd9Sstevel@tonic-gate 887c478bd9Sstevel@tonic-gate static kmutex_t mm_lock; 897c478bd9Sstevel@tonic-gate static caddr_t mm_map; 907c478bd9Sstevel@tonic-gate 917c478bd9Sstevel@tonic-gate static dev_info_t *mm_dip; /* private copy of devinfo pointer */ 927c478bd9Sstevel@tonic-gate 937c478bd9Sstevel@tonic-gate static int mm_kmem_io_access; 947c478bd9Sstevel@tonic-gate 957c478bd9Sstevel@tonic-gate static int mm_kstat_update(kstat_t *ksp, int rw); 967c478bd9Sstevel@tonic-gate static int mm_kstat_snapshot(kstat_t *ksp, void *buf, int rw); 977c478bd9Sstevel@tonic-gate 98d00f0155Sayznaga static int mm_read_mem_name(intptr_t data, mem_name_t *mem_name); 99d00f0155Sayznaga static int mm_read_mem_page(intptr_t data, mem_page_t *mpage); 100d00f0155Sayznaga static int mm_get_mem_fmri(mem_page_t *mpage, nvlist_t **nvl); 101d00f0155Sayznaga static int mm_get_paddr(nvlist_t *nvl, uint64_t *paddr); 102d00f0155Sayznaga 1037c478bd9Sstevel@tonic-gate /*ARGSUSED1*/ 1047c478bd9Sstevel@tonic-gate static int 1057c478bd9Sstevel@tonic-gate mm_attach(dev_info_t *devi, ddi_attach_cmd_t cmd) 1067c478bd9Sstevel@tonic-gate { 1077c478bd9Sstevel@tonic-gate int i; 1087c478bd9Sstevel@tonic-gate struct mem_minor { 1097c478bd9Sstevel@tonic-gate char *name; 1107c478bd9Sstevel@tonic-gate minor_t minor; 1117c478bd9Sstevel@tonic-gate int privonly; 1127c478bd9Sstevel@tonic-gate const char *rdpriv; 1137c478bd9Sstevel@tonic-gate const char *wrpriv; 1147c478bd9Sstevel@tonic-gate mode_t priv_mode; 1157c478bd9Sstevel@tonic-gate } mm[] = { 1167c478bd9Sstevel@tonic-gate { "mem", M_MEM, 0, NULL, "all", 0640 }, 1177c478bd9Sstevel@tonic-gate { "kmem", M_KMEM, 0, NULL, "all", 0640 }, 1187c478bd9Sstevel@tonic-gate { "allkmem", M_ALLKMEM, 0, "all", "all", 0600 }, 1197c478bd9Sstevel@tonic-gate { "null", M_NULL, PRIVONLY_DEV, NULL, NULL, 0666 }, 1207c478bd9Sstevel@tonic-gate { "zero", M_ZERO, PRIVONLY_DEV, NULL, NULL, 0666 }, 1217c478bd9Sstevel@tonic-gate }; 1227c478bd9Sstevel@tonic-gate kstat_t *ksp; 1237c478bd9Sstevel@tonic-gate 1247c478bd9Sstevel@tonic-gate mutex_init(&mm_lock, NULL, MUTEX_DEFAULT, NULL); 1257c478bd9Sstevel@tonic-gate mm_map = vmem_alloc(heap_arena, PAGESIZE, VM_SLEEP); 1267c478bd9Sstevel@tonic-gate 1277c478bd9Sstevel@tonic-gate for (i = 0; i < (sizeof (mm) / sizeof (mm[0])); i++) { 1287c478bd9Sstevel@tonic-gate if (ddi_create_priv_minor_node(devi, mm[i].name, S_IFCHR, 1297c478bd9Sstevel@tonic-gate mm[i].minor, DDI_PSEUDO, mm[i].privonly, 1307c478bd9Sstevel@tonic-gate mm[i].rdpriv, mm[i].wrpriv, mm[i].priv_mode) == 1317c478bd9Sstevel@tonic-gate DDI_FAILURE) { 1327c478bd9Sstevel@tonic-gate ddi_remove_minor_node(devi, NULL); 1337c478bd9Sstevel@tonic-gate return (DDI_FAILURE); 1347c478bd9Sstevel@tonic-gate } 1357c478bd9Sstevel@tonic-gate } 1367c478bd9Sstevel@tonic-gate 1377c478bd9Sstevel@tonic-gate mm_dip = devi; 1387c478bd9Sstevel@tonic-gate 1397c478bd9Sstevel@tonic-gate ksp = kstat_create("mm", 0, "phys_installed", "misc", 1407c478bd9Sstevel@tonic-gate KSTAT_TYPE_RAW, 0, KSTAT_FLAG_VAR_SIZE | KSTAT_FLAG_VIRTUAL); 1417c478bd9Sstevel@tonic-gate if (ksp != NULL) { 1427c478bd9Sstevel@tonic-gate ksp->ks_update = mm_kstat_update; 1437c478bd9Sstevel@tonic-gate ksp->ks_snapshot = mm_kstat_snapshot; 1447c478bd9Sstevel@tonic-gate ksp->ks_lock = &mm_lock; /* XXX - not really needed */ 1457c478bd9Sstevel@tonic-gate kstat_install(ksp); 1467c478bd9Sstevel@tonic-gate } 1477c478bd9Sstevel@tonic-gate 1487c478bd9Sstevel@tonic-gate mm_kmem_io_access = ddi_getprop(DDI_DEV_T_ANY, devi, DDI_PROP_DONTPASS, 1497c478bd9Sstevel@tonic-gate "kmem_io_access", 0); 1507c478bd9Sstevel@tonic-gate 1517c478bd9Sstevel@tonic-gate return (DDI_SUCCESS); 1527c478bd9Sstevel@tonic-gate } 1537c478bd9Sstevel@tonic-gate 1547c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 1557c478bd9Sstevel@tonic-gate static int 1567c478bd9Sstevel@tonic-gate mm_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result) 1577c478bd9Sstevel@tonic-gate { 1587c478bd9Sstevel@tonic-gate register int error; 1597c478bd9Sstevel@tonic-gate 1607c478bd9Sstevel@tonic-gate switch (infocmd) { 1617c478bd9Sstevel@tonic-gate case DDI_INFO_DEVT2DEVINFO: 1627c478bd9Sstevel@tonic-gate *result = (void *)mm_dip; 1637c478bd9Sstevel@tonic-gate error = DDI_SUCCESS; 1647c478bd9Sstevel@tonic-gate break; 1657c478bd9Sstevel@tonic-gate case DDI_INFO_DEVT2INSTANCE: 1667c478bd9Sstevel@tonic-gate *result = (void *)0; 1677c478bd9Sstevel@tonic-gate error = DDI_SUCCESS; 1687c478bd9Sstevel@tonic-gate break; 1697c478bd9Sstevel@tonic-gate default: 1707c478bd9Sstevel@tonic-gate error = DDI_FAILURE; 1717c478bd9Sstevel@tonic-gate } 1727c478bd9Sstevel@tonic-gate return (error); 1737c478bd9Sstevel@tonic-gate } 1747c478bd9Sstevel@tonic-gate 1757c478bd9Sstevel@tonic-gate /*ARGSUSED1*/ 1767c478bd9Sstevel@tonic-gate static int 1777c478bd9Sstevel@tonic-gate mmopen(dev_t *devp, int flag, int typ, struct cred *cred) 1787c478bd9Sstevel@tonic-gate { 1797c478bd9Sstevel@tonic-gate switch (getminor(*devp)) { 1807c478bd9Sstevel@tonic-gate case M_NULL: 1817c478bd9Sstevel@tonic-gate case M_ZERO: 1827c478bd9Sstevel@tonic-gate case M_MEM: 1837c478bd9Sstevel@tonic-gate case M_KMEM: 1847c478bd9Sstevel@tonic-gate case M_ALLKMEM: 1857c478bd9Sstevel@tonic-gate /* standard devices */ 1867c478bd9Sstevel@tonic-gate break; 1877c478bd9Sstevel@tonic-gate 1887c478bd9Sstevel@tonic-gate default: 1897c478bd9Sstevel@tonic-gate /* Unsupported or unknown type */ 1907c478bd9Sstevel@tonic-gate return (EINVAL); 1917c478bd9Sstevel@tonic-gate } 1927c478bd9Sstevel@tonic-gate return (0); 1937c478bd9Sstevel@tonic-gate } 1947c478bd9Sstevel@tonic-gate 1957c478bd9Sstevel@tonic-gate struct pollhead mm_pollhd; 1967c478bd9Sstevel@tonic-gate 1977c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 1987c478bd9Sstevel@tonic-gate static int 1997c478bd9Sstevel@tonic-gate mmchpoll(dev_t dev, short events, int anyyet, short *reventsp, 2007c478bd9Sstevel@tonic-gate struct pollhead **phpp) 2017c478bd9Sstevel@tonic-gate { 2027c478bd9Sstevel@tonic-gate switch (getminor(dev)) { 2037c478bd9Sstevel@tonic-gate case M_NULL: 2047c478bd9Sstevel@tonic-gate case M_ZERO: 2057c478bd9Sstevel@tonic-gate case M_MEM: 2067c478bd9Sstevel@tonic-gate case M_KMEM: 2077c478bd9Sstevel@tonic-gate case M_ALLKMEM: 2087c478bd9Sstevel@tonic-gate *reventsp = events & (POLLIN | POLLOUT | POLLPRI | POLLRDNORM | 2097c478bd9Sstevel@tonic-gate POLLWRNORM | POLLRDBAND | POLLWRBAND); 2107c478bd9Sstevel@tonic-gate /* 2117c478bd9Sstevel@tonic-gate * A non NULL pollhead pointer should be returned in case 2127c478bd9Sstevel@tonic-gate * user polls for 0 events. 2137c478bd9Sstevel@tonic-gate */ 2147c478bd9Sstevel@tonic-gate *phpp = !anyyet && !*reventsp ? 2157c478bd9Sstevel@tonic-gate &mm_pollhd : (struct pollhead *)NULL; 2167c478bd9Sstevel@tonic-gate return (0); 2177c478bd9Sstevel@tonic-gate default: 2187c478bd9Sstevel@tonic-gate /* no other devices currently support polling */ 2197c478bd9Sstevel@tonic-gate return (ENXIO); 2207c478bd9Sstevel@tonic-gate } 2217c478bd9Sstevel@tonic-gate } 2227c478bd9Sstevel@tonic-gate 2237c478bd9Sstevel@tonic-gate static int 2247c478bd9Sstevel@tonic-gate mmpropop(dev_t dev, dev_info_t *dip, ddi_prop_op_t prop_op, int flags, 2257c478bd9Sstevel@tonic-gate char *name, caddr_t valuep, int *lengthp) 2267c478bd9Sstevel@tonic-gate { 2277c478bd9Sstevel@tonic-gate /* 2287c478bd9Sstevel@tonic-gate * implement zero size to reduce overhead (avoid two failing 2297c478bd9Sstevel@tonic-gate * property lookups per stat). 2307c478bd9Sstevel@tonic-gate */ 2317c478bd9Sstevel@tonic-gate return (ddi_prop_op_size(dev, dip, prop_op, 2327c478bd9Sstevel@tonic-gate flags, name, valuep, lengthp, 0)); 2337c478bd9Sstevel@tonic-gate } 2347c478bd9Sstevel@tonic-gate 2357c478bd9Sstevel@tonic-gate static int 2367c478bd9Sstevel@tonic-gate mmio(struct uio *uio, enum uio_rw rw, pfn_t pfn, off_t pageoff, int allowio) 2377c478bd9Sstevel@tonic-gate { 2387c478bd9Sstevel@tonic-gate int error = 0; 2397c478bd9Sstevel@tonic-gate size_t nbytes = MIN((size_t)(PAGESIZE - pageoff), 2407c478bd9Sstevel@tonic-gate (size_t)uio->uio_iov->iov_len); 2417c478bd9Sstevel@tonic-gate 2427c478bd9Sstevel@tonic-gate mutex_enter(&mm_lock); 2437c478bd9Sstevel@tonic-gate hat_devload(kas.a_hat, mm_map, PAGESIZE, pfn, 2447c478bd9Sstevel@tonic-gate (uint_t)(rw == UIO_READ ? PROT_READ : PROT_READ | PROT_WRITE), 2457c478bd9Sstevel@tonic-gate HAT_LOAD_NOCONSIST | HAT_LOAD_LOCK); 2467c478bd9Sstevel@tonic-gate 2477c478bd9Sstevel@tonic-gate if (!pf_is_memory(pfn)) { 2487c478bd9Sstevel@tonic-gate if (allowio) { 2497c478bd9Sstevel@tonic-gate size_t c = uio->uio_iov->iov_len; 2507c478bd9Sstevel@tonic-gate 2517c478bd9Sstevel@tonic-gate if (ddi_peekpokeio(NULL, uio, rw, 2527c478bd9Sstevel@tonic-gate (caddr_t)(uintptr_t)uio->uio_loffset, c, 2537c478bd9Sstevel@tonic-gate sizeof (int32_t)) != DDI_SUCCESS) 2547c478bd9Sstevel@tonic-gate error = EFAULT; 2557c478bd9Sstevel@tonic-gate } else 2567c478bd9Sstevel@tonic-gate error = EIO; 2577c478bd9Sstevel@tonic-gate } else 2587c478bd9Sstevel@tonic-gate error = uiomove(&mm_map[pageoff], nbytes, rw, uio); 2597c478bd9Sstevel@tonic-gate 2607c478bd9Sstevel@tonic-gate hat_unload(kas.a_hat, mm_map, PAGESIZE, HAT_UNLOAD_UNLOCK); 2617c478bd9Sstevel@tonic-gate mutex_exit(&mm_lock); 2627c478bd9Sstevel@tonic-gate return (error); 2637c478bd9Sstevel@tonic-gate } 2647c478bd9Sstevel@tonic-gate 2651bd5c35fSelowe static int 2661bd5c35fSelowe mmpagelock(struct as *as, caddr_t va) 2671bd5c35fSelowe { 2681bd5c35fSelowe struct seg *seg; 2691bd5c35fSelowe int i; 2701bd5c35fSelowe 2711bd5c35fSelowe AS_LOCK_ENTER(as, &as->a_lock, RW_READER); 2721bd5c35fSelowe seg = as_segat(as, va); 2731bd5c35fSelowe i = (seg != NULL)? SEGOP_CAPABLE(seg, S_CAPABILITY_NOMINFLT) : 0; 2741bd5c35fSelowe AS_LOCK_EXIT(as, &as->a_lock); 2751bd5c35fSelowe 2761bd5c35fSelowe return (i); 2771bd5c35fSelowe } 2781bd5c35fSelowe 279843e1988Sjohnlev #ifdef __sparc 280843e1988Sjohnlev 2811bd5c35fSelowe #define NEED_LOCK_KVADDR(kva) mmpagelock(&kas, kva) 2827c478bd9Sstevel@tonic-gate 2837c478bd9Sstevel@tonic-gate #else /* __i386, __amd64 */ 2847c478bd9Sstevel@tonic-gate 2857c478bd9Sstevel@tonic-gate #define NEED_LOCK_KVADDR(va) 0 2867c478bd9Sstevel@tonic-gate 2877c478bd9Sstevel@tonic-gate #endif /* __sparc */ 2887c478bd9Sstevel@tonic-gate 2897c478bd9Sstevel@tonic-gate /*ARGSUSED3*/ 2907c478bd9Sstevel@tonic-gate static int 2917c478bd9Sstevel@tonic-gate mmrw(dev_t dev, struct uio *uio, enum uio_rw rw, cred_t *cred) 2927c478bd9Sstevel@tonic-gate { 2937c478bd9Sstevel@tonic-gate pfn_t v; 2947c478bd9Sstevel@tonic-gate struct iovec *iov; 2957c478bd9Sstevel@tonic-gate int error = 0; 2967c478bd9Sstevel@tonic-gate size_t c; 2977c478bd9Sstevel@tonic-gate ssize_t oresid = uio->uio_resid; 2987c478bd9Sstevel@tonic-gate minor_t minor = getminor(dev); 2997c478bd9Sstevel@tonic-gate 3007c478bd9Sstevel@tonic-gate while (uio->uio_resid > 0 && error == 0) { 3017c478bd9Sstevel@tonic-gate iov = uio->uio_iov; 3027c478bd9Sstevel@tonic-gate if (iov->iov_len == 0) { 3037c478bd9Sstevel@tonic-gate uio->uio_iov++; 3047c478bd9Sstevel@tonic-gate uio->uio_iovcnt--; 3057c478bd9Sstevel@tonic-gate if (uio->uio_iovcnt < 0) 3067c478bd9Sstevel@tonic-gate panic("mmrw"); 3077c478bd9Sstevel@tonic-gate continue; 3087c478bd9Sstevel@tonic-gate } 3097c478bd9Sstevel@tonic-gate switch (minor) { 3107c478bd9Sstevel@tonic-gate 3117c478bd9Sstevel@tonic-gate case M_MEM: 3127c478bd9Sstevel@tonic-gate memlist_read_lock(); 3137c478bd9Sstevel@tonic-gate if (!address_in_memlist(phys_install, 3147c478bd9Sstevel@tonic-gate (uint64_t)uio->uio_loffset, 1)) { 3157c478bd9Sstevel@tonic-gate memlist_read_unlock(); 3167c478bd9Sstevel@tonic-gate error = EFAULT; 3177c478bd9Sstevel@tonic-gate break; 3187c478bd9Sstevel@tonic-gate } 3197c478bd9Sstevel@tonic-gate memlist_read_unlock(); 3207c478bd9Sstevel@tonic-gate 3217c478bd9Sstevel@tonic-gate v = BTOP((u_offset_t)uio->uio_loffset); 3227c478bd9Sstevel@tonic-gate error = mmio(uio, rw, v, 3237c478bd9Sstevel@tonic-gate uio->uio_loffset & PAGEOFFSET, 0); 3247c478bd9Sstevel@tonic-gate break; 3257c478bd9Sstevel@tonic-gate 3267c478bd9Sstevel@tonic-gate case M_KMEM: 3277c478bd9Sstevel@tonic-gate case M_ALLKMEM: 3287c478bd9Sstevel@tonic-gate { 3297c478bd9Sstevel@tonic-gate page_t **ppp; 3307c478bd9Sstevel@tonic-gate caddr_t vaddr = (caddr_t)uio->uio_offset; 3317c478bd9Sstevel@tonic-gate int try_lock = NEED_LOCK_KVADDR(vaddr); 3327c478bd9Sstevel@tonic-gate int locked = 0; 3337c478bd9Sstevel@tonic-gate 334843e1988Sjohnlev if ((error = plat_mem_do_mmio(uio, rw)) != ENOTSUP) 335ae115bc7Smrj break; 336ae115bc7Smrj 3377c478bd9Sstevel@tonic-gate /* 3387c478bd9Sstevel@tonic-gate * If vaddr does not map a valid page, as_pagelock() 3397c478bd9Sstevel@tonic-gate * will return failure. Hence we can't check the 3407c478bd9Sstevel@tonic-gate * return value and return EFAULT here as we'd like. 3417c478bd9Sstevel@tonic-gate * seg_kp and seg_kpm do not properly support 3427c478bd9Sstevel@tonic-gate * as_pagelock() for this context so we avoid it 3437c478bd9Sstevel@tonic-gate * using the try_lock set check above. Some day when 3447c478bd9Sstevel@tonic-gate * the kernel page locking gets redesigned all this 3457c478bd9Sstevel@tonic-gate * muck can be cleaned up. 3467c478bd9Sstevel@tonic-gate */ 3477c478bd9Sstevel@tonic-gate if (try_lock) 3487c478bd9Sstevel@tonic-gate locked = (as_pagelock(&kas, &ppp, vaddr, 3497c478bd9Sstevel@tonic-gate PAGESIZE, S_WRITE) == 0); 3507c478bd9Sstevel@tonic-gate 351e42d2a1cSjongkis v = hat_getpfnum(kas.a_hat, 352e42d2a1cSjongkis (caddr_t)(uintptr_t)uio->uio_loffset); 3537c478bd9Sstevel@tonic-gate if (v == PFN_INVALID) { 3547c478bd9Sstevel@tonic-gate if (locked) 3557c478bd9Sstevel@tonic-gate as_pageunlock(&kas, ppp, vaddr, 3567c478bd9Sstevel@tonic-gate PAGESIZE, S_WRITE); 3577c478bd9Sstevel@tonic-gate error = EFAULT; 3587c478bd9Sstevel@tonic-gate break; 3597c478bd9Sstevel@tonic-gate } 3607c478bd9Sstevel@tonic-gate 3617c478bd9Sstevel@tonic-gate error = mmio(uio, rw, v, uio->uio_loffset & PAGEOFFSET, 3627c478bd9Sstevel@tonic-gate minor == M_ALLKMEM || mm_kmem_io_access); 3637c478bd9Sstevel@tonic-gate if (locked) 3647c478bd9Sstevel@tonic-gate as_pageunlock(&kas, ppp, vaddr, PAGESIZE, 3657c478bd9Sstevel@tonic-gate S_WRITE); 3667c478bd9Sstevel@tonic-gate } 3677c478bd9Sstevel@tonic-gate 3687c478bd9Sstevel@tonic-gate break; 3697c478bd9Sstevel@tonic-gate 3707c478bd9Sstevel@tonic-gate case M_ZERO: 3717c478bd9Sstevel@tonic-gate if (rw == UIO_READ) { 3727c478bd9Sstevel@tonic-gate label_t ljb; 3737c478bd9Sstevel@tonic-gate 3747c478bd9Sstevel@tonic-gate if (on_fault(&ljb)) { 3757c478bd9Sstevel@tonic-gate no_fault(); 3767c478bd9Sstevel@tonic-gate error = EFAULT; 3777c478bd9Sstevel@tonic-gate break; 3787c478bd9Sstevel@tonic-gate } 3797c478bd9Sstevel@tonic-gate uzero(iov->iov_base, iov->iov_len); 3807c478bd9Sstevel@tonic-gate no_fault(); 3817c478bd9Sstevel@tonic-gate uio->uio_resid -= iov->iov_len; 3827c478bd9Sstevel@tonic-gate uio->uio_loffset += iov->iov_len; 3837c478bd9Sstevel@tonic-gate break; 3847c478bd9Sstevel@tonic-gate } 3857c478bd9Sstevel@tonic-gate /* else it's a write, fall through to NULL case */ 3867c478bd9Sstevel@tonic-gate /*FALLTHROUGH*/ 3877c478bd9Sstevel@tonic-gate 3887c478bd9Sstevel@tonic-gate case M_NULL: 3897c478bd9Sstevel@tonic-gate if (rw == UIO_READ) 3907c478bd9Sstevel@tonic-gate return (0); 3917c478bd9Sstevel@tonic-gate c = iov->iov_len; 3927c478bd9Sstevel@tonic-gate iov->iov_base += c; 3937c478bd9Sstevel@tonic-gate iov->iov_len -= c; 3947c478bd9Sstevel@tonic-gate uio->uio_loffset += c; 3957c478bd9Sstevel@tonic-gate uio->uio_resid -= c; 3967c478bd9Sstevel@tonic-gate break; 3977c478bd9Sstevel@tonic-gate 3987c478bd9Sstevel@tonic-gate } 3997c478bd9Sstevel@tonic-gate } 4007c478bd9Sstevel@tonic-gate return (uio->uio_resid == oresid ? error : 0); 4017c478bd9Sstevel@tonic-gate } 4027c478bd9Sstevel@tonic-gate 4037c478bd9Sstevel@tonic-gate static int 4047c478bd9Sstevel@tonic-gate mmread(dev_t dev, struct uio *uio, cred_t *cred) 4057c478bd9Sstevel@tonic-gate { 4067c478bd9Sstevel@tonic-gate return (mmrw(dev, uio, UIO_READ, cred)); 4077c478bd9Sstevel@tonic-gate } 4087c478bd9Sstevel@tonic-gate 4097c478bd9Sstevel@tonic-gate static int 4107c478bd9Sstevel@tonic-gate mmwrite(dev_t dev, struct uio *uio, cred_t *cred) 4117c478bd9Sstevel@tonic-gate { 4127c478bd9Sstevel@tonic-gate return (mmrw(dev, uio, UIO_WRITE, cred)); 4137c478bd9Sstevel@tonic-gate } 4147c478bd9Sstevel@tonic-gate 4157c478bd9Sstevel@tonic-gate /* 4167c478bd9Sstevel@tonic-gate * Private ioctl for libkvm to support kvm_physaddr(). 4177c478bd9Sstevel@tonic-gate * Given an address space and a VA, compute the PA. 4187c478bd9Sstevel@tonic-gate */ 4197c478bd9Sstevel@tonic-gate static int 4207c478bd9Sstevel@tonic-gate mmioctl_vtop(intptr_t data) 4217c478bd9Sstevel@tonic-gate { 4227aec1d6eScindi #ifdef _SYSCALL32 4237aec1d6eScindi mem_vtop32_t vtop32; 4247aec1d6eScindi #endif 4257c478bd9Sstevel@tonic-gate mem_vtop_t mem_vtop; 4267c478bd9Sstevel@tonic-gate proc_t *p; 4277c478bd9Sstevel@tonic-gate pfn_t pfn = (pfn_t)PFN_INVALID; 4287c478bd9Sstevel@tonic-gate pid_t pid = 0; 4297c478bd9Sstevel@tonic-gate struct as *as; 4307c478bd9Sstevel@tonic-gate struct seg *seg; 4317c478bd9Sstevel@tonic-gate 4327aec1d6eScindi if (get_udatamodel() == DATAMODEL_NATIVE) { 4337c478bd9Sstevel@tonic-gate if (copyin((void *)data, &mem_vtop, sizeof (mem_vtop_t))) 4347c478bd9Sstevel@tonic-gate return (EFAULT); 4357aec1d6eScindi } 4367aec1d6eScindi #ifdef _SYSCALL32 4377aec1d6eScindi else { 4387aec1d6eScindi if (copyin((void *)data, &vtop32, sizeof (mem_vtop32_t))) 4397aec1d6eScindi return (EFAULT); 44080ab886dSwesolows mem_vtop.m_as = (struct as *)(uintptr_t)vtop32.m_as; 44180ab886dSwesolows mem_vtop.m_va = (void *)(uintptr_t)vtop32.m_va; 4427aec1d6eScindi 4437aec1d6eScindi if (mem_vtop.m_as != NULL) 4447aec1d6eScindi return (EINVAL); 4457aec1d6eScindi } 4467aec1d6eScindi #endif 4477aec1d6eScindi 4487c478bd9Sstevel@tonic-gate if (mem_vtop.m_as == &kas) { 4497c478bd9Sstevel@tonic-gate pfn = hat_getpfnum(kas.a_hat, mem_vtop.m_va); 4507c478bd9Sstevel@tonic-gate } else { 4517aec1d6eScindi if (mem_vtop.m_as == NULL) { 4527aec1d6eScindi /* 4537aec1d6eScindi * Assume the calling process's address space if the 4547aec1d6eScindi * caller didn't specify one. 4557aec1d6eScindi */ 4567aec1d6eScindi p = curthread->t_procp; 4577aec1d6eScindi if (p == NULL) 4587aec1d6eScindi return (EIO); 4597aec1d6eScindi mem_vtop.m_as = p->p_as; 4607aec1d6eScindi } 4617aec1d6eScindi 4627c478bd9Sstevel@tonic-gate mutex_enter(&pidlock); 4637c478bd9Sstevel@tonic-gate for (p = practive; p != NULL; p = p->p_next) { 4647c478bd9Sstevel@tonic-gate if (p->p_as == mem_vtop.m_as) { 4657c478bd9Sstevel@tonic-gate pid = p->p_pid; 4667c478bd9Sstevel@tonic-gate break; 4677c478bd9Sstevel@tonic-gate } 4687c478bd9Sstevel@tonic-gate } 4697c478bd9Sstevel@tonic-gate mutex_exit(&pidlock); 4707c478bd9Sstevel@tonic-gate if (p == NULL) 4717c478bd9Sstevel@tonic-gate return (EIO); 4727c478bd9Sstevel@tonic-gate p = sprlock(pid); 4737c478bd9Sstevel@tonic-gate if (p == NULL) 4747c478bd9Sstevel@tonic-gate return (EIO); 4757c478bd9Sstevel@tonic-gate as = p->p_as; 4767c478bd9Sstevel@tonic-gate if (as == mem_vtop.m_as) { 4777c478bd9Sstevel@tonic-gate mutex_exit(&p->p_lock); 4787c478bd9Sstevel@tonic-gate AS_LOCK_ENTER(as, &as->a_lock, RW_READER); 4797c478bd9Sstevel@tonic-gate for (seg = AS_SEGFIRST(as); seg != NULL; 4807c478bd9Sstevel@tonic-gate seg = AS_SEGNEXT(as, seg)) 4817c478bd9Sstevel@tonic-gate if ((uintptr_t)mem_vtop.m_va - 4827c478bd9Sstevel@tonic-gate (uintptr_t)seg->s_base < seg->s_size) 4837c478bd9Sstevel@tonic-gate break; 4847c478bd9Sstevel@tonic-gate if (seg != NULL) 4857c478bd9Sstevel@tonic-gate pfn = hat_getpfnum(as->a_hat, mem_vtop.m_va); 4867c478bd9Sstevel@tonic-gate AS_LOCK_EXIT(as, &as->a_lock); 4877c478bd9Sstevel@tonic-gate mutex_enter(&p->p_lock); 4887c478bd9Sstevel@tonic-gate } 4897c478bd9Sstevel@tonic-gate sprunlock(p); 4907c478bd9Sstevel@tonic-gate } 4917c478bd9Sstevel@tonic-gate mem_vtop.m_pfn = pfn; 4927c478bd9Sstevel@tonic-gate if (pfn == PFN_INVALID) 4937c478bd9Sstevel@tonic-gate return (EIO); 4947aec1d6eScindi 4957aec1d6eScindi if (get_udatamodel() == DATAMODEL_NATIVE) { 4967c478bd9Sstevel@tonic-gate if (copyout(&mem_vtop, (void *)data, sizeof (mem_vtop_t))) 4977c478bd9Sstevel@tonic-gate return (EFAULT); 4987aec1d6eScindi } 4997aec1d6eScindi #ifdef _SYSCALL32 5007aec1d6eScindi else { 5017aec1d6eScindi vtop32.m_pfn = mem_vtop.m_pfn; 5027aec1d6eScindi if (copyout(&vtop32, (void *)data, sizeof (mem_vtop32_t))) 5037aec1d6eScindi return (EFAULT); 5047aec1d6eScindi } 5057aec1d6eScindi #endif 5067c478bd9Sstevel@tonic-gate 5077c478bd9Sstevel@tonic-gate return (0); 5087c478bd9Sstevel@tonic-gate } 5097c478bd9Sstevel@tonic-gate 5107c478bd9Sstevel@tonic-gate /* 511db874c57Selowe * Given a PA, execute the given page retire command on it. 5127c478bd9Sstevel@tonic-gate */ 5137c478bd9Sstevel@tonic-gate static int 5147c478bd9Sstevel@tonic-gate mmioctl_page_retire(int cmd, intptr_t data) 5157c478bd9Sstevel@tonic-gate { 516db874c57Selowe extern int page_retire_test(void); 5177c478bd9Sstevel@tonic-gate uint64_t pa; 5187c478bd9Sstevel@tonic-gate 519db874c57Selowe if (copyin((void *)data, &pa, sizeof (uint64_t))) { 5207c478bd9Sstevel@tonic-gate return (EFAULT); 5217c478bd9Sstevel@tonic-gate } 5227c478bd9Sstevel@tonic-gate 523db874c57Selowe switch (cmd) { 524db874c57Selowe case MEM_PAGE_ISRETIRED: 525db874c57Selowe return (page_retire_check(pa, NULL)); 5267c478bd9Sstevel@tonic-gate 527db874c57Selowe case MEM_PAGE_UNRETIRE: 528db874c57Selowe return (page_unretire(pa)); 529db874c57Selowe 530db874c57Selowe case MEM_PAGE_RETIRE: 531db874c57Selowe return (page_retire(pa, PR_FMA)); 532db874c57Selowe 533db874c57Selowe case MEM_PAGE_RETIRE_MCE: 534db874c57Selowe return (page_retire(pa, PR_MCE)); 535db874c57Selowe 536db874c57Selowe case MEM_PAGE_RETIRE_UE: 537db874c57Selowe return (page_retire(pa, PR_UE)); 538db874c57Selowe 539db874c57Selowe case MEM_PAGE_GETERRORS: 540db874c57Selowe { 541db874c57Selowe uint64_t page_errors; 542db874c57Selowe int rc = page_retire_check(pa, &page_errors); 543db874c57Selowe if (copyout(&page_errors, (void *)data, 544db874c57Selowe sizeof (uint64_t))) { 545db874c57Selowe return (EFAULT); 546db874c57Selowe } 547db874c57Selowe return (rc); 548db874c57Selowe } 549db874c57Selowe 550db874c57Selowe case MEM_PAGE_RETIRE_TEST: 551db874c57Selowe return (page_retire_test()); 552db874c57Selowe 553db874c57Selowe } 554db874c57Selowe 555db874c57Selowe return (EINVAL); 5567c478bd9Sstevel@tonic-gate } 5577c478bd9Sstevel@tonic-gate 558d00f0155Sayznaga /* 559d00f0155Sayznaga * Given a mem-scheme FMRI for a page, execute the given page retire 560d00f0155Sayznaga * command on it. 561d00f0155Sayznaga */ 562d00f0155Sayznaga static int 563d00f0155Sayznaga mmioctl_page_fmri_retire(int cmd, intptr_t data) 564d00f0155Sayznaga { 565d00f0155Sayznaga mem_page_t mpage; 566d00f0155Sayznaga uint64_t pa; 567d00f0155Sayznaga nvlist_t *nvl; 568d00f0155Sayznaga int err; 569d00f0155Sayznaga 570d00f0155Sayznaga if ((err = mm_read_mem_page(data, &mpage)) < 0) 571d00f0155Sayznaga return (err); 572d00f0155Sayznaga 573d7a4d867Smb91622 if ((err = mm_get_mem_fmri(&mpage, &nvl)) != 0) 574d00f0155Sayznaga return (err); 575d00f0155Sayznaga 5767aec1d6eScindi if ((err = mm_get_paddr(nvl, &pa)) != 0) { 577d00f0155Sayznaga nvlist_free(nvl); 578d00f0155Sayznaga return (err); 579d00f0155Sayznaga } 580d00f0155Sayznaga 581d00f0155Sayznaga nvlist_free(nvl); 582d00f0155Sayznaga 583d00f0155Sayznaga switch (cmd) { 584d00f0155Sayznaga case MEM_PAGE_FMRI_ISRETIRED: 585d00f0155Sayznaga return (page_retire_check(pa, NULL)); 586d00f0155Sayznaga 587d00f0155Sayznaga case MEM_PAGE_FMRI_RETIRE: 588d00f0155Sayznaga return (page_retire(pa, PR_FMA)); 589*5f149bcaScy152378 590*5f149bcaScy152378 case MEM_PAGE_FMRI_UNRETIRE: 591*5f149bcaScy152378 return (page_unretire(pa)); 592d00f0155Sayznaga } 593d00f0155Sayznaga 594d00f0155Sayznaga return (EINVAL); 595d00f0155Sayznaga } 596d00f0155Sayznaga 5977c478bd9Sstevel@tonic-gate #ifdef __sparc 5987c478bd9Sstevel@tonic-gate /* 5997c478bd9Sstevel@tonic-gate * Given a syndrome, syndrome type, and address return the 6007c478bd9Sstevel@tonic-gate * associated memory name in the provided data buffer. 6017c478bd9Sstevel@tonic-gate */ 6027c478bd9Sstevel@tonic-gate static int 6037c478bd9Sstevel@tonic-gate mmioctl_get_mem_name(intptr_t data) 6047c478bd9Sstevel@tonic-gate { 6057c478bd9Sstevel@tonic-gate mem_name_t mem_name; 6067c478bd9Sstevel@tonic-gate void *buf; 6077c478bd9Sstevel@tonic-gate size_t bufsize; 6087c478bd9Sstevel@tonic-gate int len, err; 6097c478bd9Sstevel@tonic-gate 6107c478bd9Sstevel@tonic-gate if ((bufsize = cpu_get_name_bufsize()) == 0) 6117c478bd9Sstevel@tonic-gate return (ENOTSUP); 6127c478bd9Sstevel@tonic-gate 613d00f0155Sayznaga if ((err = mm_read_mem_name(data, &mem_name)) < 0) 614d00f0155Sayznaga return (err); 6157c478bd9Sstevel@tonic-gate 6167c478bd9Sstevel@tonic-gate buf = kmem_alloc(bufsize, KM_SLEEP); 6177c478bd9Sstevel@tonic-gate 6187c478bd9Sstevel@tonic-gate /* 6197c478bd9Sstevel@tonic-gate * Call into cpu specific code to do the lookup. 6207c478bd9Sstevel@tonic-gate */ 6217c478bd9Sstevel@tonic-gate if ((err = cpu_get_mem_name(mem_name.m_synd, mem_name.m_type, 6227c478bd9Sstevel@tonic-gate mem_name.m_addr, buf, bufsize, &len)) != 0) { 6237c478bd9Sstevel@tonic-gate kmem_free(buf, bufsize); 6247c478bd9Sstevel@tonic-gate return (err); 6257c478bd9Sstevel@tonic-gate } 6267c478bd9Sstevel@tonic-gate 6277c478bd9Sstevel@tonic-gate if (len >= mem_name.m_namelen) { 6287c478bd9Sstevel@tonic-gate kmem_free(buf, bufsize); 6297c478bd9Sstevel@tonic-gate return (ENAMETOOLONG); 6307c478bd9Sstevel@tonic-gate } 6317c478bd9Sstevel@tonic-gate 6327c478bd9Sstevel@tonic-gate if (copyoutstr(buf, (char *)mem_name.m_name, 6337c478bd9Sstevel@tonic-gate mem_name.m_namelen, NULL) != 0) { 6347c478bd9Sstevel@tonic-gate kmem_free(buf, bufsize); 6357c478bd9Sstevel@tonic-gate return (EFAULT); 6367c478bd9Sstevel@tonic-gate } 6377c478bd9Sstevel@tonic-gate 6387c478bd9Sstevel@tonic-gate kmem_free(buf, bufsize); 6397c478bd9Sstevel@tonic-gate return (0); 6407c478bd9Sstevel@tonic-gate } 6417c478bd9Sstevel@tonic-gate 6427c478bd9Sstevel@tonic-gate /* 6437c478bd9Sstevel@tonic-gate * Given a syndrome and address return information about the associated memory. 6447c478bd9Sstevel@tonic-gate */ 6457c478bd9Sstevel@tonic-gate static int 6467c478bd9Sstevel@tonic-gate mmioctl_get_mem_info(intptr_t data) 6477c478bd9Sstevel@tonic-gate { 6487c478bd9Sstevel@tonic-gate mem_info_t mem_info; 6497c478bd9Sstevel@tonic-gate int err; 6507c478bd9Sstevel@tonic-gate 6517c478bd9Sstevel@tonic-gate if (copyin((void *)data, &mem_info, sizeof (mem_info_t))) 6527c478bd9Sstevel@tonic-gate return (EFAULT); 6537c478bd9Sstevel@tonic-gate 6547c478bd9Sstevel@tonic-gate if ((err = cpu_get_mem_info(mem_info.m_synd, mem_info.m_addr, 6557c478bd9Sstevel@tonic-gate &mem_info.m_mem_size, &mem_info.m_seg_size, &mem_info.m_bank_size, 6567c478bd9Sstevel@tonic-gate &mem_info.m_segments, &mem_info.m_banks, &mem_info.m_mcid)) != 0) 6577c478bd9Sstevel@tonic-gate return (err); 6587c478bd9Sstevel@tonic-gate 6597c478bd9Sstevel@tonic-gate if (copyout(&mem_info, (void *)data, sizeof (mem_info_t)) != 0) 6607c478bd9Sstevel@tonic-gate return (EFAULT); 6617c478bd9Sstevel@tonic-gate 6627c478bd9Sstevel@tonic-gate return (0); 6637c478bd9Sstevel@tonic-gate } 664d00f0155Sayznaga 665d00f0155Sayznaga /* 666d00f0155Sayznaga * Given a memory name, return its associated serial id 667d00f0155Sayznaga */ 668d00f0155Sayznaga static int 669d00f0155Sayznaga mmioctl_get_mem_sid(intptr_t data) 670d00f0155Sayznaga { 671d00f0155Sayznaga mem_name_t mem_name; 672d00f0155Sayznaga void *buf; 673d00f0155Sayznaga void *name; 674d00f0155Sayznaga size_t name_len; 675d00f0155Sayznaga size_t bufsize; 676d00f0155Sayznaga int len, err; 677d00f0155Sayznaga 678d00f0155Sayznaga if ((bufsize = cpu_get_name_bufsize()) == 0) 679d00f0155Sayznaga return (ENOTSUP); 680d00f0155Sayznaga 681d00f0155Sayznaga if ((err = mm_read_mem_name(data, &mem_name)) < 0) 682d00f0155Sayznaga return (err); 683d00f0155Sayznaga 684d00f0155Sayznaga buf = kmem_alloc(bufsize, KM_SLEEP); 685d00f0155Sayznaga 686d00f0155Sayznaga if (mem_name.m_namelen > 1024) 687d00f0155Sayznaga mem_name.m_namelen = 1024; /* cap at 1024 bytes */ 688d00f0155Sayznaga 689d00f0155Sayznaga name = kmem_alloc(mem_name.m_namelen, KM_SLEEP); 690d00f0155Sayznaga 691d00f0155Sayznaga if ((err = copyinstr((char *)mem_name.m_name, (char *)name, 692d00f0155Sayznaga mem_name.m_namelen, &name_len)) != 0) { 693d00f0155Sayznaga kmem_free(buf, bufsize); 694d00f0155Sayznaga kmem_free(name, mem_name.m_namelen); 695d00f0155Sayznaga return (err); 696d00f0155Sayznaga } 697d00f0155Sayznaga 698d00f0155Sayznaga /* 699d00f0155Sayznaga * Call into cpu specific code to do the lookup. 700d00f0155Sayznaga */ 701d00f0155Sayznaga if ((err = cpu_get_mem_sid(name, buf, bufsize, &len)) != 0) { 702d00f0155Sayznaga kmem_free(buf, bufsize); 703d00f0155Sayznaga kmem_free(name, mem_name.m_namelen); 704d00f0155Sayznaga return (err); 705d00f0155Sayznaga } 706d00f0155Sayznaga 707d00f0155Sayznaga if (len > mem_name.m_sidlen) { 708d00f0155Sayznaga kmem_free(buf, bufsize); 709d00f0155Sayznaga kmem_free(name, mem_name.m_namelen); 710d00f0155Sayznaga return (ENAMETOOLONG); 711d00f0155Sayznaga } 712d00f0155Sayznaga 713d00f0155Sayznaga if (copyoutstr(buf, (char *)mem_name.m_sid, 714d00f0155Sayznaga mem_name.m_sidlen, NULL) != 0) { 715d00f0155Sayznaga kmem_free(buf, bufsize); 716d00f0155Sayznaga kmem_free(name, mem_name.m_namelen); 717d00f0155Sayznaga return (EFAULT); 718d00f0155Sayznaga } 719d00f0155Sayznaga 720d00f0155Sayznaga kmem_free(buf, bufsize); 721d00f0155Sayznaga kmem_free(name, mem_name.m_namelen); 722d00f0155Sayznaga return (0); 723d00f0155Sayznaga } 7247c478bd9Sstevel@tonic-gate #endif /* __sparc */ 7257c478bd9Sstevel@tonic-gate 7267c478bd9Sstevel@tonic-gate /* 7277c478bd9Sstevel@tonic-gate * Private ioctls for 7287c478bd9Sstevel@tonic-gate * libkvm to support kvm_physaddr(). 7297c478bd9Sstevel@tonic-gate * FMA support for page_retire() and memory attribute information. 7307c478bd9Sstevel@tonic-gate */ 7317c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 7327c478bd9Sstevel@tonic-gate static int 7337c478bd9Sstevel@tonic-gate mmioctl(dev_t dev, int cmd, intptr_t data, int flag, cred_t *cred, int *rvalp) 7347c478bd9Sstevel@tonic-gate { 73533129b33Sayznaga if ((cmd == MEM_VTOP && getminor(dev) != M_KMEM) || 73633129b33Sayznaga (cmd != MEM_VTOP && getminor(dev) != M_MEM)) 737d00f0155Sayznaga return (ENXIO); 738d00f0155Sayznaga 7397c478bd9Sstevel@tonic-gate switch (cmd) { 7407c478bd9Sstevel@tonic-gate case MEM_VTOP: 7417c478bd9Sstevel@tonic-gate return (mmioctl_vtop(data)); 7427c478bd9Sstevel@tonic-gate 7437c478bd9Sstevel@tonic-gate case MEM_PAGE_RETIRE: 7447c478bd9Sstevel@tonic-gate case MEM_PAGE_ISRETIRED: 745db874c57Selowe case MEM_PAGE_UNRETIRE: 746db874c57Selowe case MEM_PAGE_RETIRE_MCE: 747db874c57Selowe case MEM_PAGE_RETIRE_UE: 748db874c57Selowe case MEM_PAGE_GETERRORS: 749db874c57Selowe case MEM_PAGE_RETIRE_TEST: 7507c478bd9Sstevel@tonic-gate return (mmioctl_page_retire(cmd, data)); 7517c478bd9Sstevel@tonic-gate 752d00f0155Sayznaga case MEM_PAGE_FMRI_RETIRE: 753d00f0155Sayznaga case MEM_PAGE_FMRI_ISRETIRED: 754*5f149bcaScy152378 case MEM_PAGE_FMRI_UNRETIRE: 755d00f0155Sayznaga return (mmioctl_page_fmri_retire(cmd, data)); 756d00f0155Sayznaga 7577c478bd9Sstevel@tonic-gate #ifdef __sparc 758d00f0155Sayznaga case MEM_NAME: 7597c478bd9Sstevel@tonic-gate return (mmioctl_get_mem_name(data)); 7607c478bd9Sstevel@tonic-gate 7617c478bd9Sstevel@tonic-gate case MEM_INFO: 7627c478bd9Sstevel@tonic-gate return (mmioctl_get_mem_info(data)); 763d00f0155Sayznaga 764d00f0155Sayznaga case MEM_SID: 765d00f0155Sayznaga return (mmioctl_get_mem_sid(data)); 7667c478bd9Sstevel@tonic-gate #else 767d00f0155Sayznaga case MEM_NAME: 768d00f0155Sayznaga case MEM_INFO: 769d00f0155Sayznaga case MEM_SID: 7707c478bd9Sstevel@tonic-gate return (ENOTSUP); 771d00f0155Sayznaga #endif /* __sparc */ 7727c478bd9Sstevel@tonic-gate } 7737c478bd9Sstevel@tonic-gate return (ENXIO); 7747c478bd9Sstevel@tonic-gate } 7757c478bd9Sstevel@tonic-gate 7767c478bd9Sstevel@tonic-gate /*ARGSUSED2*/ 7777c478bd9Sstevel@tonic-gate static int 7787c478bd9Sstevel@tonic-gate mmmmap(dev_t dev, off_t off, int prot) 7797c478bd9Sstevel@tonic-gate { 7807c478bd9Sstevel@tonic-gate pfn_t pf; 7817c478bd9Sstevel@tonic-gate struct memlist *pmem; 7827c478bd9Sstevel@tonic-gate minor_t minor = getminor(dev); 7837c478bd9Sstevel@tonic-gate 7847c478bd9Sstevel@tonic-gate switch (minor) { 7857c478bd9Sstevel@tonic-gate case M_MEM: 7867c478bd9Sstevel@tonic-gate pf = btop(off); 7877c478bd9Sstevel@tonic-gate memlist_read_lock(); 7887c478bd9Sstevel@tonic-gate for (pmem = phys_install; pmem != NULL; pmem = pmem->next) { 7897c478bd9Sstevel@tonic-gate if (pf >= BTOP(pmem->address) && 7907c478bd9Sstevel@tonic-gate pf < BTOP(pmem->address + pmem->size)) { 7917c478bd9Sstevel@tonic-gate memlist_read_unlock(); 7927c478bd9Sstevel@tonic-gate return (impl_obmem_pfnum(pf)); 7937c478bd9Sstevel@tonic-gate } 7947c478bd9Sstevel@tonic-gate } 7957c478bd9Sstevel@tonic-gate memlist_read_unlock(); 7967c478bd9Sstevel@tonic-gate break; 7977c478bd9Sstevel@tonic-gate 7987c478bd9Sstevel@tonic-gate case M_KMEM: 7997c478bd9Sstevel@tonic-gate case M_ALLKMEM: 8007c478bd9Sstevel@tonic-gate /* no longer supported with KPR */ 8017c478bd9Sstevel@tonic-gate return (-1); 8027c478bd9Sstevel@tonic-gate 8037c478bd9Sstevel@tonic-gate case M_ZERO: 8047c478bd9Sstevel@tonic-gate /* 8057c478bd9Sstevel@tonic-gate * We shouldn't be mmap'ing to /dev/zero here as 8067c478bd9Sstevel@tonic-gate * mmsegmap() should have already converted 8077c478bd9Sstevel@tonic-gate * a mapping request for this device to a mapping 8087c478bd9Sstevel@tonic-gate * using seg_vn for anonymous memory. 8097c478bd9Sstevel@tonic-gate */ 8107c478bd9Sstevel@tonic-gate break; 8117c478bd9Sstevel@tonic-gate 8127c478bd9Sstevel@tonic-gate } 8137c478bd9Sstevel@tonic-gate return (-1); 8147c478bd9Sstevel@tonic-gate } 8157c478bd9Sstevel@tonic-gate 8167c478bd9Sstevel@tonic-gate /* 8177c478bd9Sstevel@tonic-gate * This function is called when a memory device is mmap'ed. 8187c478bd9Sstevel@tonic-gate * Set up the mapping to the correct device driver. 8197c478bd9Sstevel@tonic-gate */ 8207c478bd9Sstevel@tonic-gate static int 8217c478bd9Sstevel@tonic-gate mmsegmap(dev_t dev, off_t off, struct as *as, caddr_t *addrp, off_t len, 8227c478bd9Sstevel@tonic-gate uint_t prot, uint_t maxprot, uint_t flags, struct cred *cred) 8237c478bd9Sstevel@tonic-gate { 8247c478bd9Sstevel@tonic-gate struct segvn_crargs vn_a; 8257c478bd9Sstevel@tonic-gate struct segdev_crargs dev_a; 8267c478bd9Sstevel@tonic-gate int error; 8277c478bd9Sstevel@tonic-gate minor_t minor; 8287c478bd9Sstevel@tonic-gate off_t i; 8297c478bd9Sstevel@tonic-gate 8307c478bd9Sstevel@tonic-gate minor = getminor(dev); 8317c478bd9Sstevel@tonic-gate 8327c478bd9Sstevel@tonic-gate as_rangelock(as); 8337c478bd9Sstevel@tonic-gate /* 8347c478bd9Sstevel@tonic-gate * No need to worry about vac alignment on /dev/zero 8357c478bd9Sstevel@tonic-gate * since this is a "clone" object that doesn't yet exist. 8367c478bd9Sstevel@tonic-gate */ 83760946fe0Smec error = choose_addr(as, addrp, len, off, 8387c478bd9Sstevel@tonic-gate (minor == M_MEM) || (minor == M_KMEM), flags); 83960946fe0Smec if (error != 0) { 8407c478bd9Sstevel@tonic-gate as_rangeunlock(as); 84160946fe0Smec return (error); 8427c478bd9Sstevel@tonic-gate } 8437c478bd9Sstevel@tonic-gate 8447c478bd9Sstevel@tonic-gate switch (minor) { 8457c478bd9Sstevel@tonic-gate case M_MEM: 8467c478bd9Sstevel@tonic-gate /* /dev/mem cannot be mmap'ed with MAP_PRIVATE */ 8477c478bd9Sstevel@tonic-gate if ((flags & MAP_TYPE) != MAP_SHARED) { 8487c478bd9Sstevel@tonic-gate as_rangeunlock(as); 8497c478bd9Sstevel@tonic-gate return (EINVAL); 8507c478bd9Sstevel@tonic-gate } 8517c478bd9Sstevel@tonic-gate 8527c478bd9Sstevel@tonic-gate /* 8537c478bd9Sstevel@tonic-gate * Check to ensure that the entire range is 8547c478bd9Sstevel@tonic-gate * legal and we are not trying to map in 8557c478bd9Sstevel@tonic-gate * more than the device will let us. 8567c478bd9Sstevel@tonic-gate */ 8577c478bd9Sstevel@tonic-gate for (i = 0; i < len; i += PAGESIZE) { 8587c478bd9Sstevel@tonic-gate if (mmmmap(dev, off + i, maxprot) == -1) { 8597c478bd9Sstevel@tonic-gate as_rangeunlock(as); 8607c478bd9Sstevel@tonic-gate return (ENXIO); 8617c478bd9Sstevel@tonic-gate } 8627c478bd9Sstevel@tonic-gate } 8637c478bd9Sstevel@tonic-gate 8647c478bd9Sstevel@tonic-gate /* 8657c478bd9Sstevel@tonic-gate * Use seg_dev segment driver for /dev/mem mapping. 8667c478bd9Sstevel@tonic-gate */ 8677c478bd9Sstevel@tonic-gate dev_a.mapfunc = mmmmap; 8687c478bd9Sstevel@tonic-gate dev_a.dev = dev; 8697c478bd9Sstevel@tonic-gate dev_a.offset = off; 8707c478bd9Sstevel@tonic-gate dev_a.type = (flags & MAP_TYPE); 8717c478bd9Sstevel@tonic-gate dev_a.prot = (uchar_t)prot; 8727c478bd9Sstevel@tonic-gate dev_a.maxprot = (uchar_t)maxprot; 8737c478bd9Sstevel@tonic-gate dev_a.hat_attr = 0; 8747c478bd9Sstevel@tonic-gate 8757c478bd9Sstevel@tonic-gate /* 8767c478bd9Sstevel@tonic-gate * Make /dev/mem mappings non-consistent since we can't 8777c478bd9Sstevel@tonic-gate * alias pages that don't have page structs behind them, 8787c478bd9Sstevel@tonic-gate * such as kernel stack pages. If someone mmap()s a kernel 8797c478bd9Sstevel@tonic-gate * stack page and if we give him a tte with cv, a line from 8807c478bd9Sstevel@tonic-gate * that page can get into both pages of the spitfire d$. 8817c478bd9Sstevel@tonic-gate * But snoop from another processor will only invalidate 8827c478bd9Sstevel@tonic-gate * the first page. This later caused kernel (xc_attention) 8837c478bd9Sstevel@tonic-gate * to go into an infinite loop at pil 13 and no interrupts 8847c478bd9Sstevel@tonic-gate * could come in. See 1203630. 8857c478bd9Sstevel@tonic-gate * 8867c478bd9Sstevel@tonic-gate */ 8877c478bd9Sstevel@tonic-gate dev_a.hat_flags = HAT_LOAD_NOCONSIST; 8887c478bd9Sstevel@tonic-gate dev_a.devmap_data = NULL; 8897c478bd9Sstevel@tonic-gate 8907c478bd9Sstevel@tonic-gate error = as_map(as, *addrp, len, segdev_create, &dev_a); 8917c478bd9Sstevel@tonic-gate break; 8927c478bd9Sstevel@tonic-gate 8937c478bd9Sstevel@tonic-gate case M_ZERO: 8947c478bd9Sstevel@tonic-gate /* 8957c478bd9Sstevel@tonic-gate * Use seg_vn segment driver for /dev/zero mapping. 8967c478bd9Sstevel@tonic-gate * Passing in a NULL amp gives us the "cloning" effect. 8977c478bd9Sstevel@tonic-gate */ 8987c478bd9Sstevel@tonic-gate vn_a.vp = NULL; 8997c478bd9Sstevel@tonic-gate vn_a.offset = 0; 9007c478bd9Sstevel@tonic-gate vn_a.type = (flags & MAP_TYPE); 9017c478bd9Sstevel@tonic-gate vn_a.prot = prot; 9027c478bd9Sstevel@tonic-gate vn_a.maxprot = maxprot; 9037c478bd9Sstevel@tonic-gate vn_a.flags = flags & ~MAP_TYPE; 9047c478bd9Sstevel@tonic-gate vn_a.cred = cred; 9057c478bd9Sstevel@tonic-gate vn_a.amp = NULL; 9067c478bd9Sstevel@tonic-gate vn_a.szc = 0; 9077c478bd9Sstevel@tonic-gate vn_a.lgrp_mem_policy_flags = 0; 9087c478bd9Sstevel@tonic-gate error = as_map(as, *addrp, len, segvn_create, &vn_a); 9097c478bd9Sstevel@tonic-gate break; 9107c478bd9Sstevel@tonic-gate 9117c478bd9Sstevel@tonic-gate case M_KMEM: 9127c478bd9Sstevel@tonic-gate case M_ALLKMEM: 9137c478bd9Sstevel@tonic-gate /* No longer supported with KPR. */ 9147c478bd9Sstevel@tonic-gate error = ENXIO; 9157c478bd9Sstevel@tonic-gate break; 9167c478bd9Sstevel@tonic-gate 9177c478bd9Sstevel@tonic-gate case M_NULL: 9187c478bd9Sstevel@tonic-gate /* 9197c478bd9Sstevel@tonic-gate * Use seg_dev segment driver for /dev/null mapping. 9207c478bd9Sstevel@tonic-gate */ 9217c478bd9Sstevel@tonic-gate dev_a.mapfunc = mmmmap; 9227c478bd9Sstevel@tonic-gate dev_a.dev = dev; 9237c478bd9Sstevel@tonic-gate dev_a.offset = off; 9247c478bd9Sstevel@tonic-gate dev_a.type = 0; /* neither PRIVATE nor SHARED */ 9257c478bd9Sstevel@tonic-gate dev_a.prot = dev_a.maxprot = (uchar_t)PROT_NONE; 9267c478bd9Sstevel@tonic-gate dev_a.hat_attr = 0; 9277c478bd9Sstevel@tonic-gate dev_a.hat_flags = 0; 9287c478bd9Sstevel@tonic-gate error = as_map(as, *addrp, len, segdev_create, &dev_a); 9297c478bd9Sstevel@tonic-gate break; 9307c478bd9Sstevel@tonic-gate 9317c478bd9Sstevel@tonic-gate default: 9327c478bd9Sstevel@tonic-gate error = ENXIO; 9337c478bd9Sstevel@tonic-gate } 9347c478bd9Sstevel@tonic-gate 9357c478bd9Sstevel@tonic-gate as_rangeunlock(as); 9367c478bd9Sstevel@tonic-gate return (error); 9377c478bd9Sstevel@tonic-gate } 9387c478bd9Sstevel@tonic-gate 9397c478bd9Sstevel@tonic-gate static struct cb_ops mm_cb_ops = { 9407c478bd9Sstevel@tonic-gate mmopen, /* open */ 9417c478bd9Sstevel@tonic-gate nulldev, /* close */ 9427c478bd9Sstevel@tonic-gate nodev, /* strategy */ 9437c478bd9Sstevel@tonic-gate nodev, /* print */ 9447c478bd9Sstevel@tonic-gate nodev, /* dump */ 9457c478bd9Sstevel@tonic-gate mmread, /* read */ 9467c478bd9Sstevel@tonic-gate mmwrite, /* write */ 9477c478bd9Sstevel@tonic-gate mmioctl, /* ioctl */ 9487c478bd9Sstevel@tonic-gate nodev, /* devmap */ 9497c478bd9Sstevel@tonic-gate mmmmap, /* mmap */ 9507c478bd9Sstevel@tonic-gate mmsegmap, /* segmap */ 9517c478bd9Sstevel@tonic-gate mmchpoll, /* poll */ 9527c478bd9Sstevel@tonic-gate mmpropop, /* prop_op */ 9537c478bd9Sstevel@tonic-gate 0, /* streamtab */ 9547c478bd9Sstevel@tonic-gate D_NEW | D_MP | D_64BIT | D_U64BIT 9557c478bd9Sstevel@tonic-gate }; 9567c478bd9Sstevel@tonic-gate 9577c478bd9Sstevel@tonic-gate static struct dev_ops mm_ops = { 9587c478bd9Sstevel@tonic-gate DEVO_REV, /* devo_rev, */ 9597c478bd9Sstevel@tonic-gate 0, /* refcnt */ 9607c478bd9Sstevel@tonic-gate mm_info, /* get_dev_info */ 9617c478bd9Sstevel@tonic-gate nulldev, /* identify */ 9627c478bd9Sstevel@tonic-gate nulldev, /* probe */ 9637c478bd9Sstevel@tonic-gate mm_attach, /* attach */ 9647c478bd9Sstevel@tonic-gate nodev, /* detach */ 9657c478bd9Sstevel@tonic-gate nodev, /* reset */ 9667c478bd9Sstevel@tonic-gate &mm_cb_ops, /* driver operations */ 9677c478bd9Sstevel@tonic-gate (struct bus_ops *)0 /* bus operations */ 9687c478bd9Sstevel@tonic-gate }; 9697c478bd9Sstevel@tonic-gate 9707c478bd9Sstevel@tonic-gate static struct modldrv modldrv = { 9717c478bd9Sstevel@tonic-gate &mod_driverops, "memory driver %I%", &mm_ops, 9727c478bd9Sstevel@tonic-gate }; 9737c478bd9Sstevel@tonic-gate 9747c478bd9Sstevel@tonic-gate static struct modlinkage modlinkage = { 9757c478bd9Sstevel@tonic-gate MODREV_1, &modldrv, NULL 9767c478bd9Sstevel@tonic-gate }; 9777c478bd9Sstevel@tonic-gate 9787c478bd9Sstevel@tonic-gate int 9797c478bd9Sstevel@tonic-gate _init(void) 9807c478bd9Sstevel@tonic-gate { 9817c478bd9Sstevel@tonic-gate return (mod_install(&modlinkage)); 9827c478bd9Sstevel@tonic-gate } 9837c478bd9Sstevel@tonic-gate 9847c478bd9Sstevel@tonic-gate int 9857c478bd9Sstevel@tonic-gate _info(struct modinfo *modinfop) 9867c478bd9Sstevel@tonic-gate { 9877c478bd9Sstevel@tonic-gate return (mod_info(&modlinkage, modinfop)); 9887c478bd9Sstevel@tonic-gate } 9897c478bd9Sstevel@tonic-gate 9907c478bd9Sstevel@tonic-gate int 9917c478bd9Sstevel@tonic-gate _fini(void) 9927c478bd9Sstevel@tonic-gate { 9937c478bd9Sstevel@tonic-gate return (mod_remove(&modlinkage)); 9947c478bd9Sstevel@tonic-gate } 9957c478bd9Sstevel@tonic-gate 9967c478bd9Sstevel@tonic-gate static int 9977c478bd9Sstevel@tonic-gate mm_kstat_update(kstat_t *ksp, int rw) 9987c478bd9Sstevel@tonic-gate { 9997c478bd9Sstevel@tonic-gate struct memlist *pmem; 10007c478bd9Sstevel@tonic-gate uint_t count; 10017c478bd9Sstevel@tonic-gate 10027c478bd9Sstevel@tonic-gate if (rw == KSTAT_WRITE) 10037c478bd9Sstevel@tonic-gate return (EACCES); 10047c478bd9Sstevel@tonic-gate 10057c478bd9Sstevel@tonic-gate count = 0; 10067c478bd9Sstevel@tonic-gate memlist_read_lock(); 10077c478bd9Sstevel@tonic-gate for (pmem = phys_install; pmem != NULL; pmem = pmem->next) { 10087c478bd9Sstevel@tonic-gate count++; 10097c478bd9Sstevel@tonic-gate } 10107c478bd9Sstevel@tonic-gate memlist_read_unlock(); 10117c478bd9Sstevel@tonic-gate 10127c478bd9Sstevel@tonic-gate ksp->ks_ndata = count; 10137c478bd9Sstevel@tonic-gate ksp->ks_data_size = count * 2 * sizeof (uint64_t); 10147c478bd9Sstevel@tonic-gate 10157c478bd9Sstevel@tonic-gate return (0); 10167c478bd9Sstevel@tonic-gate } 10177c478bd9Sstevel@tonic-gate 10187c478bd9Sstevel@tonic-gate static int 10197c478bd9Sstevel@tonic-gate mm_kstat_snapshot(kstat_t *ksp, void *buf, int rw) 10207c478bd9Sstevel@tonic-gate { 10217c478bd9Sstevel@tonic-gate struct memlist *pmem; 10227c478bd9Sstevel@tonic-gate struct memunit { 10237c478bd9Sstevel@tonic-gate uint64_t address; 10247c478bd9Sstevel@tonic-gate uint64_t size; 10257c478bd9Sstevel@tonic-gate } *kspmem; 10267c478bd9Sstevel@tonic-gate 10277c478bd9Sstevel@tonic-gate if (rw == KSTAT_WRITE) 10287c478bd9Sstevel@tonic-gate return (EACCES); 10297c478bd9Sstevel@tonic-gate 10307c478bd9Sstevel@tonic-gate ksp->ks_snaptime = gethrtime(); 10317c478bd9Sstevel@tonic-gate 10327c478bd9Sstevel@tonic-gate kspmem = (struct memunit *)buf; 10337c478bd9Sstevel@tonic-gate memlist_read_lock(); 10347c478bd9Sstevel@tonic-gate for (pmem = phys_install; pmem != NULL; pmem = pmem->next, kspmem++) { 10357c478bd9Sstevel@tonic-gate if ((caddr_t)kspmem >= (caddr_t)buf + ksp->ks_data_size) 10367c478bd9Sstevel@tonic-gate break; 10377c478bd9Sstevel@tonic-gate kspmem->address = pmem->address; 10387c478bd9Sstevel@tonic-gate kspmem->size = pmem->size; 10397c478bd9Sstevel@tonic-gate } 10407c478bd9Sstevel@tonic-gate memlist_read_unlock(); 10417c478bd9Sstevel@tonic-gate 10427c478bd9Sstevel@tonic-gate return (0); 10437c478bd9Sstevel@tonic-gate } 1044d00f0155Sayznaga 1045d00f0155Sayznaga /* 1046d00f0155Sayznaga * Read a mem_name_t from user-space and store it in the mem_name_t 1047d00f0155Sayznaga * pointed to by the mem_name argument. 1048d00f0155Sayznaga */ 1049d00f0155Sayznaga static int 1050d00f0155Sayznaga mm_read_mem_name(intptr_t data, mem_name_t *mem_name) 1051d00f0155Sayznaga { 1052d00f0155Sayznaga if (get_udatamodel() == DATAMODEL_NATIVE) { 1053d00f0155Sayznaga if (copyin((void *)data, mem_name, sizeof (mem_name_t))) 1054d00f0155Sayznaga return (EFAULT); 1055d00f0155Sayznaga } 1056d00f0155Sayznaga #ifdef _SYSCALL32 1057d00f0155Sayznaga else { 1058d00f0155Sayznaga mem_name32_t mem_name32; 1059d00f0155Sayznaga 1060d00f0155Sayznaga if (copyin((void *)data, &mem_name32, sizeof (mem_name32_t))) 1061d00f0155Sayznaga return (EFAULT); 1062d00f0155Sayznaga mem_name->m_addr = mem_name32.m_addr; 1063d00f0155Sayznaga mem_name->m_synd = mem_name32.m_synd; 1064d00f0155Sayznaga mem_name->m_type[0] = mem_name32.m_type[0]; 1065d00f0155Sayznaga mem_name->m_type[1] = mem_name32.m_type[1]; 106633129b33Sayznaga mem_name->m_name = (caddr_t)(uintptr_t)mem_name32.m_name; 1067d00f0155Sayznaga mem_name->m_namelen = (size_t)mem_name32.m_namelen; 106833129b33Sayznaga mem_name->m_sid = (caddr_t)(uintptr_t)mem_name32.m_sid; 1069d00f0155Sayznaga mem_name->m_sidlen = (size_t)mem_name32.m_sidlen; 1070d00f0155Sayznaga } 1071d00f0155Sayznaga #endif /* _SYSCALL32 */ 1072d00f0155Sayznaga 1073d00f0155Sayznaga return (0); 1074d00f0155Sayznaga } 1075d00f0155Sayznaga 1076d00f0155Sayznaga /* 1077d00f0155Sayznaga * Read a mem_page_t from user-space and store it in the mem_page_t 1078d00f0155Sayznaga * pointed to by the mpage argument. 1079d00f0155Sayznaga */ 1080d00f0155Sayznaga static int 1081d00f0155Sayznaga mm_read_mem_page(intptr_t data, mem_page_t *mpage) 1082d00f0155Sayznaga { 1083d00f0155Sayznaga if (get_udatamodel() == DATAMODEL_NATIVE) { 1084d00f0155Sayznaga if (copyin((void *)data, mpage, sizeof (mem_page_t)) != 0) 1085d00f0155Sayznaga return (EFAULT); 1086d00f0155Sayznaga } 1087d00f0155Sayznaga #ifdef _SYSCALL32 1088d00f0155Sayznaga else { 1089d00f0155Sayznaga mem_page32_t mpage32; 1090d00f0155Sayznaga 1091d00f0155Sayznaga if (copyin((void *)data, &mpage32, sizeof (mem_page32_t)) != 0) 1092d00f0155Sayznaga return (EFAULT); 1093d00f0155Sayznaga 1094d00f0155Sayznaga mpage->m_fmri = (caddr_t)(uintptr_t)mpage32.m_fmri; 1095d00f0155Sayznaga mpage->m_fmrisz = mpage32.m_fmrisz; 1096d00f0155Sayznaga } 1097d00f0155Sayznaga #endif /* _SYSCALL32 */ 1098d00f0155Sayznaga 1099d00f0155Sayznaga return (0); 1100d00f0155Sayznaga } 1101d00f0155Sayznaga 1102d00f0155Sayznaga /* 1103d00f0155Sayznaga * Expand an FMRI from a mem_page_t. 1104d00f0155Sayznaga */ 1105d00f0155Sayznaga static int 1106d00f0155Sayznaga mm_get_mem_fmri(mem_page_t *mpage, nvlist_t **nvl) 1107d00f0155Sayznaga { 1108d00f0155Sayznaga char *buf; 1109d00f0155Sayznaga int err; 1110d00f0155Sayznaga 1111d00f0155Sayznaga if (mpage->m_fmri == NULL || mpage->m_fmrisz > MEM_FMRI_MAX_BUFSIZE) 1112d00f0155Sayznaga return (EINVAL); 1113d00f0155Sayznaga 1114d00f0155Sayznaga buf = kmem_alloc(mpage->m_fmrisz, KM_SLEEP); 1115d00f0155Sayznaga if (copyin(mpage->m_fmri, buf, mpage->m_fmrisz) != 0) { 1116d00f0155Sayznaga kmem_free(buf, mpage->m_fmrisz); 1117d00f0155Sayznaga return (EFAULT); 1118d00f0155Sayznaga } 1119d00f0155Sayznaga 1120d00f0155Sayznaga err = nvlist_unpack(buf, mpage->m_fmrisz, nvl, KM_SLEEP); 1121d00f0155Sayznaga kmem_free(buf, mpage->m_fmrisz); 1122d00f0155Sayznaga 1123d00f0155Sayznaga return (err); 1124d00f0155Sayznaga } 1125d00f0155Sayznaga 1126d00f0155Sayznaga static int 1127d00f0155Sayznaga mm_get_paddr(nvlist_t *nvl, uint64_t *paddr) 1128d00f0155Sayznaga { 1129d00f0155Sayznaga uint8_t version; 11301db8e258Sayznaga uint64_t pa; 1131d00f0155Sayznaga char *scheme; 113220c794b3Sgavinm int err; 11331db8e258Sayznaga #ifdef __sparc 11341db8e258Sayznaga uint64_t offset; 1135d00f0155Sayznaga char *unum; 1136d00f0155Sayznaga char **serids; 1137d00f0155Sayznaga uint_t nserids; 11381db8e258Sayznaga #endif 1139d00f0155Sayznaga 1140d00f0155Sayznaga /* Verify FMRI scheme name and version number */ 1141d00f0155Sayznaga if ((nvlist_lookup_string(nvl, FM_FMRI_SCHEME, &scheme) != 0) || 1142d00f0155Sayznaga (strcmp(scheme, FM_FMRI_SCHEME_MEM) != 0) || 1143d00f0155Sayznaga (nvlist_lookup_uint8(nvl, FM_VERSION, &version) != 0) || 1144d00f0155Sayznaga version > FM_MEM_SCHEME_VERSION) { 1145d00f0155Sayznaga return (EINVAL); 1146d00f0155Sayznaga } 1147d00f0155Sayznaga 1148d00f0155Sayznaga /* 1149d00f0155Sayznaga * There are two ways a physical address can be obtained from a mem 1150d00f0155Sayznaga * scheme FMRI. One way is to use the "offset" and "serial" 1151d00f0155Sayznaga * members, if they are present, together with the "unum" member to 1152d00f0155Sayznaga * calculate a physical address. This is the preferred way since 1153d00f0155Sayznaga * it is independent of possible changes to the programming of 1154d00f0155Sayznaga * underlying hardware registers that may change the physical address. 1155d00f0155Sayznaga * If the "offset" member is not present, then the address is 1156d00f0155Sayznaga * retrieved from the "physaddr" member. 1157d00f0155Sayznaga */ 11587aec1d6eScindi #if defined(__sparc) 1159d00f0155Sayznaga if (nvlist_lookup_uint64(nvl, FM_FMRI_MEM_OFFSET, &offset) != 0) { 1160d00f0155Sayznaga if (nvlist_lookup_uint64(nvl, FM_FMRI_MEM_PHYSADDR, &pa) != 1161d00f0155Sayznaga 0) { 1162d00f0155Sayznaga return (EINVAL); 1163d00f0155Sayznaga } 1164d00f0155Sayznaga } else if (nvlist_lookup_string(nvl, FM_FMRI_MEM_UNUM, &unum) != 0 || 1165d00f0155Sayznaga nvlist_lookup_string_array(nvl, FM_FMRI_MEM_SERIAL_ID, &serids, 1166d00f0155Sayznaga &nserids) != 0) { 1167d00f0155Sayznaga return (EINVAL); 1168d00f0155Sayznaga } else { 116912af71e9Sayznaga err = cpu_get_mem_addr(unum, serids[0], offset, &pa); 117012af71e9Sayznaga if (err != 0) { 117112af71e9Sayznaga if (err == ENOTSUP) { 117212af71e9Sayznaga /* Fall back to physaddr */ 117312af71e9Sayznaga if (nvlist_lookup_uint64(nvl, 117412af71e9Sayznaga FM_FMRI_MEM_PHYSADDR, &pa) != 0) 117512af71e9Sayznaga return (EINVAL); 117612af71e9Sayznaga } else 1177d00f0155Sayznaga return (err); 1178d00f0155Sayznaga } 117912af71e9Sayznaga } 1180ae115bc7Smrj #elif defined(__x86) 118120c794b3Sgavinm if ((err = cmi_mc_unumtopa(NULL, nvl, &pa)) != CMI_SUCCESS && 118220c794b3Sgavinm err != CMIERR_MC_PARTIALUNUMTOPA) 1183b655a209Sayznaga return (EINVAL); 11847aec1d6eScindi #else 11857aec1d6eScindi #error "port me" 1186b655a209Sayznaga #endif /* __sparc */ 1187d00f0155Sayznaga 1188d00f0155Sayznaga *paddr = pa; 1189d00f0155Sayznaga return (0); 1190d00f0155Sayznaga } 1191