diff options
-rw-r--r-- | sys/amd64/amd64/efirt_machdep.c (renamed from sys/amd64/amd64/efirt.c) | 311 | ||||
-rw-r--r-- | sys/amd64/include/efi.h | 21 | ||||
-rw-r--r-- | sys/conf/files | 1 | ||||
-rw-r--r-- | sys/conf/files.amd64 | 2 | ||||
-rw-r--r-- | sys/dev/efidev/efidev.c | 13 | ||||
-rw-r--r-- | sys/dev/efidev/efirt.c | 388 | ||||
-rw-r--r-- | sys/modules/efirt/Makefile | 2 | ||||
-rw-r--r-- | sys/sys/efi.h | 19 |
8 files changed, 435 insertions, 322 deletions
diff --git a/sys/amd64/amd64/efirt.c b/sys/amd64/amd64/efirt_machdep.c index cc2b7f7..053804b 100644 --- a/sys/amd64/amd64/efirt.c +++ b/sys/amd64/amd64/efirt_machdep.c @@ -60,54 +60,12 @@ __FBSDID("$FreeBSD$"); #include <vm/vm_page.h> #include <vm/vm_pager.h> -static struct efi_systbl *efi_systbl; -static struct efi_cfgtbl *efi_cfgtbl; -static struct efi_rt *efi_runtime; - -static int efi_status2err[25] = { - 0, /* EFI_SUCCESS */ - ENOEXEC, /* EFI_LOAD_ERROR */ - EINVAL, /* EFI_INVALID_PARAMETER */ - ENOSYS, /* EFI_UNSUPPORTED */ - EMSGSIZE, /* EFI_BAD_BUFFER_SIZE */ - EOVERFLOW, /* EFI_BUFFER_TOO_SMALL */ - EBUSY, /* EFI_NOT_READY */ - EIO, /* EFI_DEVICE_ERROR */ - EROFS, /* EFI_WRITE_PROTECTED */ - EAGAIN, /* EFI_OUT_OF_RESOURCES */ - EIO, /* EFI_VOLUME_CORRUPTED */ - ENOSPC, /* EFI_VOLUME_FULL */ - ENXIO, /* EFI_NO_MEDIA */ - ESTALE, /* EFI_MEDIA_CHANGED */ - ENOENT, /* EFI_NOT_FOUND */ - EACCES, /* EFI_ACCESS_DENIED */ - ETIMEDOUT, /* EFI_NO_RESPONSE */ - EADDRNOTAVAIL, /* EFI_NO_MAPPING */ - ETIMEDOUT, /* EFI_TIMEOUT */ - EDOOFUS, /* EFI_NOT_STARTED */ - EALREADY, /* EFI_ALREADY_STARTED */ - ECANCELED, /* EFI_ABORTED */ - EPROTO, /* EFI_ICMP_ERROR */ - EPROTO, /* EFI_TFTP_ERROR */ - EPROTO /* EFI_PROTOCOL_ERROR */ -}; - -static int -efi_status_to_errno(efi_status status) -{ - u_long code; - - code = status & 0x3ffffffffffffffful; - return (code < nitems(efi_status2err) ? efi_status2err[code] : EDOOFUS); -} - -static struct mtx efi_lock; static pml4_entry_t *efi_pml4; static vm_object_t obj_1t1_pt; static vm_page_t efi_pml4_page; static vm_pindex_t efi_1t1_idx; -static void +void efi_destroy_1t1_map(void) { vm_page_t m; @@ -185,7 +143,7 @@ efi_1t1_pte(vm_offset_t va) return (pte); } -static bool +bool efi_create_1t1_map(struct efi_md *map, int ndesc, int descsz) { struct efi_md *p; @@ -289,22 +247,13 @@ fail: * firmware/SMM long operation, which would negatively affect IPIs, * esp. TLB shootdown requests. */ -static int -efi_enter(void) +int +efi_arch_enter(void) { pmap_t curpmap; - int error; - if (efi_runtime == NULL) - return (ENXIO); curpmap = PCPU_GET(curpmap); - PMAP_LOCK(curpmap); - mtx_lock(&efi_lock); - error = fpu_kern_enter(curthread, NULL, FPU_KERN_NOCTX); - if (error != 0) { - PMAP_UNLOCK(curpmap); - return (error); - } + PMAP_LOCK_ASSERT(curpmap, MA_OWNED); /* * IPI TLB shootdown handler invltlb_pcid_handler() reloads @@ -327,8 +276,8 @@ efi_enter(void) return (0); } -static void -efi_leave(void) +void +efi_arch_leave(void) { pmap_t curpmap; @@ -339,254 +288,8 @@ efi_leave(void) curpmap->pm_pcids[PCPU_GET(cpuid)].pm_pcid : 0)); if (!pmap_pcid_enabled) invltlb(); - - fpu_kern_leave(curthread, NULL); - mtx_unlock(&efi_lock); - PMAP_UNLOCK(curpmap); -} - -static int -efi_init(void) -{ - struct efi_map_header *efihdr; - struct efi_md *map; - caddr_t kmdp; - size_t efisz; - - mtx_init(&efi_lock, "efi", NULL, MTX_DEF); - - if (efi_systbl_phys == 0) { - if (bootverbose) - printf("EFI systbl not available\n"); - return (0); - } - efi_systbl = (struct efi_systbl *)PHYS_TO_DMAP(efi_systbl_phys); - if (efi_systbl->st_hdr.th_sig != EFI_SYSTBL_SIG) { - efi_systbl = NULL; - if (bootverbose) - printf("EFI systbl signature invalid\n"); - return (0); - } - efi_cfgtbl = (efi_systbl->st_cfgtbl == 0) ? NULL : - (struct efi_cfgtbl *)efi_systbl->st_cfgtbl; - if (efi_cfgtbl == NULL) { - if (bootverbose) - printf("EFI config table is not present\n"); - } - - kmdp = preload_search_by_type("elf kernel"); - if (kmdp == NULL) - kmdp = preload_search_by_type("elf64 kernel"); - efihdr = (struct efi_map_header *)preload_search_info(kmdp, - MODINFO_METADATA | MODINFOMD_EFI_MAP); - if (efihdr == NULL) { - if (bootverbose) - printf("EFI map is not present\n"); - return (0); - } - efisz = (sizeof(struct efi_map_header) + 0xf) & ~0xf; - map = (struct efi_md *)((uint8_t *)efihdr + efisz); - if (efihdr->descriptor_size == 0) - return (ENOMEM); - - if (!efi_create_1t1_map(map, efihdr->memory_size / - efihdr->descriptor_size, efihdr->descriptor_size)) { - if (bootverbose) - printf("EFI cannot create runtime map\n"); - return (ENOMEM); - } - - efi_runtime = (efi_systbl->st_rt == 0) ? NULL : - (struct efi_rt *)efi_systbl->st_rt; - if (efi_runtime == NULL) { - if (bootverbose) - printf("EFI runtime services table is not present\n"); - efi_destroy_1t1_map(); - return (ENXIO); - } - - return (0); -} - -static void -efi_uninit(void) -{ - - efi_destroy_1t1_map(); - - efi_systbl = NULL; - efi_cfgtbl = NULL; - efi_runtime = NULL; - - mtx_destroy(&efi_lock); -} - -int -efi_get_table(struct uuid *uuid, void **ptr) -{ - struct efi_cfgtbl *ct; - u_long count; - - if (efi_cfgtbl == NULL) - return (ENXIO); - count = efi_systbl->st_entries; - ct = efi_cfgtbl; - while (count--) { - if (!bcmp(&ct->ct_uuid, uuid, sizeof(*uuid))) { - *ptr = (void *)PHYS_TO_DMAP(ct->ct_data); - return (0); - } - ct++; - } - return (ENOENT); -} - -int -efi_get_time_locked(struct efi_tm *tm) -{ - efi_status status; - int error; - - mtx_assert(&atrtc_time_lock, MA_OWNED); - error = efi_enter(); - if (error != 0) - return (error); - status = efi_runtime->rt_gettime(tm, NULL); - efi_leave(); - error = efi_status_to_errno(status); - return (error); -} - -int -efi_get_time(struct efi_tm *tm) -{ - int error; - - if (efi_runtime == NULL) - return (ENXIO); - mtx_lock(&atrtc_time_lock); - error = efi_get_time_locked(tm); - mtx_unlock(&atrtc_time_lock); - return (error); -} - -int -efi_reset_system(void) -{ - int error; - - error = efi_enter(); - if (error != 0) - return (error); - efi_runtime->rt_reset(EFI_RESET_WARM, 0, 0, NULL); - efi_leave(); - return (EIO); } -int -efi_set_time_locked(struct efi_tm *tm) -{ - efi_status status; - int error; - - mtx_assert(&atrtc_time_lock, MA_OWNED); - error = efi_enter(); - if (error != 0) - return (error); - status = efi_runtime->rt_settime(tm); - efi_leave(); - error = efi_status_to_errno(status); - return (error); -} - -int -efi_set_time(struct efi_tm *tm) -{ - int error; - - if (efi_runtime == NULL) - return (ENXIO); - mtx_lock(&atrtc_time_lock); - error = efi_set_time_locked(tm); - mtx_unlock(&atrtc_time_lock); - return (error); -} - -int -efi_var_get(efi_char *name, struct uuid *vendor, uint32_t *attrib, - size_t *datasize, void *data) -{ - efi_status status; - int error; - - error = efi_enter(); - if (error != 0) - return (error); - status = efi_runtime->rt_getvar(name, vendor, attrib, datasize, data); - efi_leave(); - error = efi_status_to_errno(status); - return (error); -} - -int -efi_var_nextname(size_t *namesize, efi_char *name, struct uuid *vendor) -{ - efi_status status; - int error; - - error = efi_enter(); - if (error != 0) - return (error); - status = efi_runtime->rt_scanvar(namesize, name, vendor); - efi_leave(); - error = efi_status_to_errno(status); - return (error); -} - -int -efi_var_set(efi_char *name, struct uuid *vendor, uint32_t attrib, - size_t datasize, void *data) -{ - efi_status status; - int error; - - error = efi_enter(); - if (error != 0) - return (error); - status = efi_runtime->rt_setvar(name, vendor, attrib, datasize, data); - efi_leave(); - error = efi_status_to_errno(status); - return (error); -} - -static int -efirt_modevents(module_t m, int event, void *arg __unused) -{ - - switch (event) { - case MOD_LOAD: - return (efi_init()); - - case MOD_UNLOAD: - efi_uninit(); - return (0); - - case MOD_SHUTDOWN: - return (0); - - default: - return (EOPNOTSUPP); - } -} - -static moduledata_t efirt_moddata = { - .name = "efirt", - .evhand = efirt_modevents, - .priv = NULL, -}; -DECLARE_MODULE(efirt, efirt_moddata, SI_SUB_VM_CONF, SI_ORDER_ANY); -MODULE_VERSION(efirt, 1); - /* XXX debug stuff */ static int efi_time_sysctl_handler(SYSCTL_HANDLER_ARGS) diff --git a/sys/amd64/include/efi.h b/sys/amd64/include/efi.h index a0a39b4..75d3959 100644 --- a/sys/amd64/include/efi.h +++ b/sys/amd64/include/efi.h @@ -32,6 +32,8 @@ #ifndef __AMD64_INCLUDE_EFI_H_ #define __AMD64_INCLUDE_EFI_H_ +#include <isa/rtc.h> + /* * XXX: from gcc 6.2 manual: * Note, the ms_abi attribute for Microsoft Windows 64-bit targets @@ -45,21 +47,8 @@ #define EFIABI_ATTR __attribute__((ms_abi)) #endif -#ifdef _KERNEL -struct uuid; -struct efi_tm; - -int efi_get_table(struct uuid *uuid, void **ptr); -int efi_get_time(struct efi_tm *tm); -int efi_get_time_locked(struct efi_tm *tm); -int efi_reset_system(void); -int efi_set_time(struct efi_tm *tm); -int efi_set_time_locked(struct efi_tm *tm); -int efi_var_get(uint16_t *name, struct uuid *vendor, uint32_t *attrib, - size_t *datasize, void *data); -int efi_var_nextname(size_t *namesize, uint16_t *name, struct uuid *vendor); -int efi_var_set(uint16_t *name, struct uuid *vendor, uint32_t attrib, - size_t datasize, void *data); -#endif +#define EFI_TIME_LOCK() mtx_lock(&atrtc_time_lock); +#define EFI_TIME_UNLOCK() mtx_unlock(&atrtc_time_lock); +#define EFI_TIME_OWNED() mtx_assert(&atrtc_time_lock, MA_OWNED); #endif /* __AMD64_INCLUDE_EFI_H_ */ diff --git a/sys/conf/files b/sys/conf/files index a40abde..b8e79cd 100644 --- a/sys/conf/files +++ b/sys/conf/files @@ -1584,6 +1584,7 @@ dev/ed/if_ed_rtl80x9.c optional ed dev/ed/if_ed_pccard.c optional ed pccard dev/ed/if_ed_pci.c optional ed pci dev/efidev/efidev.c optional efirt +dev/efidev/efirt.c optional efirt dev/eisa/eisa_if.m standard dev/eisa/eisaconf.c optional eisa dev/e1000/if_em.c optional em \ diff --git a/sys/conf/files.amd64 b/sys/conf/files.amd64 index 27dd471..26392d1 100644 --- a/sys/conf/files.amd64 +++ b/sys/conf/files.amd64 @@ -133,7 +133,7 @@ amd64/amd64/cpu_switch.S standard amd64/amd64/db_disasm.c optional ddb amd64/amd64/db_interface.c optional ddb amd64/amd64/db_trace.c optional ddb -amd64/amd64/efirt.c optional efirt +amd64/amd64/efirt_machdep.c optional efirt amd64/amd64/elf_machdep.c standard amd64/amd64/exception.S standard amd64/amd64/fpu.c standard diff --git a/sys/dev/efidev/efidev.c b/sys/dev/efidev/efidev.c index d6e0e06..1b83d55 100644 --- a/sys/dev/efidev/efidev.c +++ b/sys/dev/efidev/efidev.c @@ -39,15 +39,28 @@ __FBSDID("$FreeBSD$"); #include <machine/efi.h> #include <sys/efiio.h> +static d_open_t efidev_open; static d_ioctl_t efidev_ioctl; static struct cdevsw efi_cdevsw = { .d_name = "efi", .d_version = D_VERSION, + .d_open = efidev_open, .d_ioctl = efidev_ioctl, }; static int +efidev_open(struct cdev *dev __unused, int oflags __unused, + int devtype __unused, struct thread *td __unused) +{ + /* + * Only return success when we have an actual runtime to call. + */ + + return efi_rt_ok(); +} + +static int efidev_ioctl(struct cdev *dev __unused, u_long cmd, caddr_t addr, int flags __unused, struct thread *td __unused) { diff --git a/sys/dev/efidev/efirt.c b/sys/dev/efidev/efirt.c new file mode 100644 index 0000000..9f54494 --- /dev/null +++ b/sys/dev/efidev/efirt.c @@ -0,0 +1,388 @@ +/*- + * Copyright (c) 2004 Marcel Moolenaar + * Copyright (c) 2001 Doug Rabson + * Copyright (c) 2016 The FreeBSD Foundation + * All rights reserved. + * + * Portions of this software were developed by Konstantin Belousov + * under sponsorship from the FreeBSD Foundation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/efi.h> +#include <sys/kernel.h> +#include <sys/linker.h> +#include <sys/lock.h> +#include <sys/module.h> +#include <sys/mutex.h> +#include <sys/clock.h> +#include <sys/proc.h> +#include <sys/rwlock.h> +#include <sys/sched.h> +#include <sys/sysctl.h> +#include <sys/systm.h> +#include <sys/vmmeter.h> + +#include <machine/fpu.h> +#include <machine/efi.h> +#include <machine/metadata.h> +#include <machine/vmparam.h> + +#include <vm/vm.h> +#include <vm/pmap.h> +#include <vm/vm_map.h> + +static struct efi_systbl *efi_systbl; +static struct efi_cfgtbl *efi_cfgtbl; +static struct efi_rt *efi_runtime; + +static int efi_status2err[25] = { + 0, /* EFI_SUCCESS */ + ENOEXEC, /* EFI_LOAD_ERROR */ + EINVAL, /* EFI_INVALID_PARAMETER */ + ENOSYS, /* EFI_UNSUPPORTED */ + EMSGSIZE, /* EFI_BAD_BUFFER_SIZE */ + EOVERFLOW, /* EFI_BUFFER_TOO_SMALL */ + EBUSY, /* EFI_NOT_READY */ + EIO, /* EFI_DEVICE_ERROR */ + EROFS, /* EFI_WRITE_PROTECTED */ + EAGAIN, /* EFI_OUT_OF_RESOURCES */ + EIO, /* EFI_VOLUME_CORRUPTED */ + ENOSPC, /* EFI_VOLUME_FULL */ + ENXIO, /* EFI_NO_MEDIA */ + ESTALE, /* EFI_MEDIA_CHANGED */ + ENOENT, /* EFI_NOT_FOUND */ + EACCES, /* EFI_ACCESS_DENIED */ + ETIMEDOUT, /* EFI_NO_RESPONSE */ + EADDRNOTAVAIL, /* EFI_NO_MAPPING */ + ETIMEDOUT, /* EFI_TIMEOUT */ + EDOOFUS, /* EFI_NOT_STARTED */ + EALREADY, /* EFI_ALREADY_STARTED */ + ECANCELED, /* EFI_ABORTED */ + EPROTO, /* EFI_ICMP_ERROR */ + EPROTO, /* EFI_TFTP_ERROR */ + EPROTO /* EFI_PROTOCOL_ERROR */ +}; + +static int +efi_status_to_errno(efi_status status) +{ + u_long code; + + code = status & 0x3ffffffffffffffful; + return (code < nitems(efi_status2err) ? efi_status2err[code] : EDOOFUS); +} + +static struct mtx efi_lock; + +static int +efi_init(void) +{ + struct efi_map_header *efihdr; + struct efi_md *map; + caddr_t kmdp; + size_t efisz; + + mtx_init(&efi_lock, "efi", NULL, MTX_DEF); + + if (efi_systbl_phys == 0) { + if (bootverbose) + printf("EFI systbl not available\n"); + return (0); + } + efi_systbl = (struct efi_systbl *)PHYS_TO_DMAP(efi_systbl_phys); + if (efi_systbl->st_hdr.th_sig != EFI_SYSTBL_SIG) { + efi_systbl = NULL; + if (bootverbose) + printf("EFI systbl signature invalid\n"); + return (0); + } + efi_cfgtbl = (efi_systbl->st_cfgtbl == 0) ? NULL : + (struct efi_cfgtbl *)efi_systbl->st_cfgtbl; + if (efi_cfgtbl == NULL) { + if (bootverbose) + printf("EFI config table is not present\n"); + } + + kmdp = preload_search_by_type("elf kernel"); + if (kmdp == NULL) + kmdp = preload_search_by_type("elf64 kernel"); + efihdr = (struct efi_map_header *)preload_search_info(kmdp, + MODINFO_METADATA | MODINFOMD_EFI_MAP); + if (efihdr == NULL) { + if (bootverbose) + printf("EFI map is not present\n"); + return (0); + } + efisz = (sizeof(struct efi_map_header) + 0xf) & ~0xf; + map = (struct efi_md *)((uint8_t *)efihdr + efisz); + if (efihdr->descriptor_size == 0) + return (ENOMEM); + + if (!efi_create_1t1_map(map, efihdr->memory_size / + efihdr->descriptor_size, efihdr->descriptor_size)) { + if (bootverbose) + printf("EFI cannot create runtime map\n"); + return (ENOMEM); + } + + efi_runtime = (efi_systbl->st_rt == 0) ? NULL : + (struct efi_rt *)efi_systbl->st_rt; + if (efi_runtime == NULL) { + if (bootverbose) + printf("EFI runtime services table is not present\n"); + efi_destroy_1t1_map(); + return (ENXIO); + } + + return (0); +} + +static void +efi_uninit(void) +{ + + efi_destroy_1t1_map(); + + efi_systbl = NULL; + efi_cfgtbl = NULL; + efi_runtime = NULL; + + mtx_destroy(&efi_lock); +} + +int +efi_rt_ok(void) +{ + + if (efi_runtime == NULL) + return (ENXIO); + return (0); +} + +static int +efi_enter(void) +{ + struct thread *td; + pmap_t curpmap; + int error; + + if (efi_runtime == NULL) + return (ENXIO); + td = curthread; + curpmap = &td->td_proc->p_vmspace->vm_pmap; + PMAP_LOCK(curpmap); + mtx_lock(&efi_lock); + error = fpu_kern_enter(td, NULL, FPU_KERN_NOCTX); + if (error != 0) { + PMAP_UNLOCK(curpmap); + return (error); + } + + return (efi_arch_enter()); +} + +static void +efi_leave(void) +{ + struct thread *td; + pmap_t curpmap; + + efi_arch_leave(); + + curpmap = &curproc->p_vmspace->vm_pmap; + td = curthread; + fpu_kern_leave(td, NULL); + mtx_unlock(&efi_lock); + PMAP_UNLOCK(curpmap); +} + +int +efi_get_table(struct uuid *uuid, void **ptr) +{ + struct efi_cfgtbl *ct; + u_long count; + + if (efi_cfgtbl == NULL || efi_systbl == NULL) + return (ENXIO); + count = efi_systbl->st_entries; + ct = efi_cfgtbl; + while (count--) { + if (!bcmp(&ct->ct_uuid, uuid, sizeof(*uuid))) { + *ptr = (void *)PHYS_TO_DMAP(ct->ct_data); + return (0); + } + ct++; + } + return (ENOENT); +} + +static int +efi_get_time_locked(struct efi_tm *tm) +{ + efi_status status; + int error; + + EFI_TIME_OWNED() + error = efi_enter(); + if (error != 0) + return (error); + status = efi_runtime->rt_gettime(tm, NULL); + efi_leave(); + error = efi_status_to_errno(status); + return (error); +} + +int +efi_get_time(struct efi_tm *tm) +{ + int error; + + if (efi_runtime == NULL) + return (ENXIO); + EFI_TIME_LOCK() + error = efi_get_time_locked(tm); + EFI_TIME_UNLOCK() + return (error); +} + +int +efi_reset_system(void) +{ + int error; + + error = efi_enter(); + if (error != 0) + return (error); + efi_runtime->rt_reset(EFI_RESET_WARM, 0, 0, NULL); + efi_leave(); + return (EIO); +} + +static int +efi_set_time_locked(struct efi_tm *tm) +{ + efi_status status; + int error; + + EFI_TIME_OWNED(); + error = efi_enter(); + if (error != 0) + return (error); + status = efi_runtime->rt_settime(tm); + efi_leave(); + error = efi_status_to_errno(status); + return (error); +} + +int +efi_set_time(struct efi_tm *tm) +{ + int error; + + if (efi_runtime == NULL) + return (ENXIO); + EFI_TIME_LOCK() + error = efi_set_time_locked(tm); + EFI_TIME_UNLOCK() + return (error); +} + +int +efi_var_get(efi_char *name, struct uuid *vendor, uint32_t *attrib, + size_t *datasize, void *data) +{ + efi_status status; + int error; + + error = efi_enter(); + if (error != 0) + return (error); + status = efi_runtime->rt_getvar(name, vendor, attrib, datasize, data); + efi_leave(); + error = efi_status_to_errno(status); + return (error); +} + +int +efi_var_nextname(size_t *namesize, efi_char *name, struct uuid *vendor) +{ + efi_status status; + int error; + + error = efi_enter(); + if (error != 0) + return (error); + status = efi_runtime->rt_scanvar(namesize, name, vendor); + efi_leave(); + error = efi_status_to_errno(status); + return (error); +} + +int +efi_var_set(efi_char *name, struct uuid *vendor, uint32_t attrib, + size_t datasize, void *data) +{ + efi_status status; + int error; + + error = efi_enter(); + if (error != 0) + return (error); + status = efi_runtime->rt_setvar(name, vendor, attrib, datasize, data); + efi_leave(); + error = efi_status_to_errno(status); + return (error); +} + +static int +efirt_modevents(module_t m, int event, void *arg __unused) +{ + + switch (event) { + case MOD_LOAD: + return (efi_init()); + + case MOD_UNLOAD: + efi_uninit(); + return (0); + + case MOD_SHUTDOWN: + return (0); + + default: + return (EOPNOTSUPP); + } +} + +static moduledata_t efirt_moddata = { + .name = "efirt", + .evhand = efirt_modevents, + .priv = NULL, +}; +DECLARE_MODULE(efirt, efirt_moddata, SI_SUB_VM_CONF, SI_ORDER_ANY); +MODULE_VERSION(efirt, 1); diff --git a/sys/modules/efirt/Makefile b/sys/modules/efirt/Makefile index f840bc1..af5cee4 100644 --- a/sys/modules/efirt/Makefile +++ b/sys/modules/efirt/Makefile @@ -4,7 +4,7 @@ .PATH: ${SRCTOP}/sys/dev/efidev KMOD= efirt -SRCS= efirt.c efidev.c +SRCS= efirt.c efirt_machdep.c efidev.c SRCS+= device_if.h bus_if.h .include <bsd.kmod.mk> diff --git a/sys/sys/efi.h b/sys/sys/efi.h index 05ccfab..4e381ee 100644 --- a/sys/sys/efi.h +++ b/sys/sys/efi.h @@ -168,6 +168,25 @@ struct efi_systbl { }; extern vm_paddr_t efi_systbl_phys; + +/* Internal MD EFI functions */ +int efi_arch_enter(void); +void efi_arch_leave(void); +bool efi_create_1t1_map(struct efi_md *, int, int); +void efi_destroy_1t1_map(void); + +/* Public MI EFI functions */ +int efi_rt_ok(void); +int efi_get_table(struct uuid *uuid, void **ptr); +int efi_get_time(struct efi_tm *tm); +int efi_reset_system(void); +int efi_set_time(struct efi_tm *tm); +int efi_var_get(uint16_t *name, struct uuid *vendor, uint32_t *attrib, + size_t *datasize, void *data); +int efi_var_nextname(size_t *namesize, uint16_t *name, struct uuid *vendor); +int efi_var_set(uint16_t *name, struct uuid *vendor, uint32_t attrib, + size_t datasize, void *data); + #endif /* _KERNEL */ #endif /* _SYS_EFI_H_ */ |