/*- * Copyright (c) 2004 Marcel Moolenaar * All rights reserved. * * 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 ``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 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. * * $FreeBSD$ */ #ifndef _SYS_EFI_H_ #define _SYS_EFI_H_ #include #include #define EFI_PAGE_SHIFT 12 #define EFI_PAGE_SIZE (1 << EFI_PAGE_SHIFT) #define EFI_PAGE_MASK (EFI_PAGE_SIZE - 1) #define EFI_TABLE_SMBIOS \ {0xeb9d2d31,0x2d88,0x11d3,0x9a,0x16,{0x00,0x90,0x27,0x3f,0xc1,0x4d}} #define EFI_TABLE_SMBIOS3 \ {0xf2fd1544,0x9794,0x4a2c,0x99,0x2e,{0xe5,0xbb,0xcf,0x20,0xe3,0x94}} enum efi_reset { EFI_RESET_COLD = 0, EFI_RESET_WARM = 1, EFI_RESET_SHUTDOWN = 2, }; typedef uint16_t efi_char; typedef unsigned long efi_status; struct efi_cfgtbl { struct uuid ct_uuid; void *ct_data; }; struct efi_md { uint32_t md_type; #define EFI_MD_TYPE_NULL 0 #define EFI_MD_TYPE_CODE 1 /* Loader text. */ #define EFI_MD_TYPE_DATA 2 /* Loader data. */ #define EFI_MD_TYPE_BS_CODE 3 /* Boot services text. */ #define EFI_MD_TYPE_BS_DATA 4 /* Boot services data. */ #define EFI_MD_TYPE_RT_CODE 5 /* Runtime services text. */ #define EFI_MD_TYPE_RT_DATA 6 /* Runtime services data. */ #define EFI_MD_TYPE_FREE 7 /* Unused/free memory. */ #define EFI_MD_TYPE_BAD 8 /* Bad memory */ #define EFI_MD_TYPE_RECLAIM 9 /* ACPI reclaimable memory. */ #define EFI_MD_TYPE_FIRMWARE 10 /* ACPI NV memory */ #define EFI_MD_TYPE_IOMEM 11 /* Memory-mapped I/O. */ #define EFI_MD_TYPE_IOPORT 12 /* I/O port space. */ #define EFI_MD_TYPE_PALCODE 13 /* PAL */ #define EFI_MD_TYPE_PERSISTENT 14 /* Persistent memory. */ uint32_t __pad; uint64_t md_phys; uint64_t md_virt; uint64_t md_pages; uint64_t md_attr; #define EFI_MD_ATTR_UC 0x0000000000000001UL #define EFI_MD_ATTR_WC 0x0000000000000002UL #define EFI_MD_ATTR_WT 0x0000000000000004UL #define EFI_MD_ATTR_WB 0x0000000000000008UL #define EFI_MD_ATTR_UCE 0x0000000000000010UL #define EFI_MD_ATTR_WP 0x0000000000001000UL #define EFI_MD_ATTR_RP 0x0000000000002000UL #define EFI_MD_ATTR_XP 0x0000000000004000UL #define EFI_MD_ATTR_NV 0x0000000000008000UL #define EFI_MD_ATTR_MORE_RELIABLE \ 0x0000000000010000UL #define EFI_MD_ATTR_RO 0x0000000000020000UL #define EFI_MD_ATTR_RT 0x8000000000000000UL }; #define efi_next_descriptor(ptr, size) \ ((struct efi_md *)(((uint8_t *)(ptr)) + (size))) struct efi_tm { uint16_t tm_year; /* 1998 - 20XX */ uint8_t tm_mon; /* 1 - 12 */ uint8_t tm_mday; /* 1 - 31 */ uint8_t tm_hour; /* 0 - 23 */ uint8_t tm_min; /* 0 - 59 */ uint8_t tm_sec; /* 0 - 59 */ uint8_t __pad1; uint32_t tm_nsec; /* 0 - 999,999,999 */ int16_t tm_tz; /* -1440 to 1440 or 2047 */ uint8_t tm_dst; uint8_t __pad2; }; struct efi_tmcap { uint32_t tc_res; /* 1e-6 parts per million */ uint32_t tc_prec; /* hertz */ uint8_t tc_stz; /* Set clears sub-second time */ }; struct efi_tblhdr { uint64_t th_sig; uint32_t th_rev; uint32_t th_hdrsz; uint32_t th_crc32; uint32_t __res; }; #ifdef _KERNEL #ifdef EFIABI_ATTR struct efi_rt { struct efi_tblhdr rt_hdr; efi_status (*rt_gettime)(struct efi_tm *, struct efi_tmcap *) EFIABI_ATTR; efi_status (*rt_settime)(struct efi_tm *) EFIABI_ATTR; efi_status (*rt_getwaketime)(uint8_t *, uint8_t *, struct efi_tm *) EFIABI_ATTR; efi_status (*rt_setwaketime)(uint8_t, struct efi_tm *) EFIABI_ATTR; efi_status (*rt_setvirtual)(u_long, u_long, uint32_t, struct efi_md *) EFIABI_ATTR; efi_status (*rt_cvtptr)(u_long, void **) EFIABI_ATTR; efi_status (*rt_getvar)(efi_char *, struct uuid *, uint32_t *, u_long *, void *) EFIABI_ATTR; efi_status (*rt_scanvar)(u_long *, efi_char *, struct uuid *) EFIABI_ATTR; efi_status (*rt_setvar)(efi_char *, struct uuid *, uint32_t, u_long, void *) EFIABI_ATTR; efi_status (*rt_gethicnt)(uint32_t *) EFIABI_ATTR; efi_status (*rt_reset)(enum efi_reset, efi_status, u_long, efi_char *) EFIABI_ATTR; }; #endif struct efi_systbl { struct efi_tblhdr st_hdr; #define EFI_SYSTBL_SIG 0x5453595320494249UL efi_char *st_fwvendor; uint32_t st_fwrev; uint32_t __pad; void *st_cin; void *st_cinif; void *st_cout; void *st_coutif; void *st_cerr; void *st_cerrif; uint64_t st_rt; void *st_bs; u_long st_entries; uint64_t st_cfgtbl; }; extern vm_paddr_t efi_systbl_phys; struct efirt_callinfo; /* Internal MD EFI functions */ int efi_arch_enter(void); void efi_arch_leave(void); vm_offset_t efi_phys_to_kva(vm_paddr_t); int efi_rt_arch_call(struct efirt_callinfo *); bool efi_create_1t1_map(struct efi_md *, int, int); void efi_destroy_1t1_map(void); struct efi_ops { /* * The EFI calls might be virtualized in some environments, requiring * FreeBSD to use a different interface (ie: hypercalls) in order to * access them. */ int (*rt_ok)(void); int (*get_table)(struct uuid *, void **); int (*get_time)(struct efi_tm *); int (*get_time_capabilities)(struct efi_tmcap *); int (*reset_system)(enum efi_reset); int (*set_time)(struct efi_tm *); int (*var_get)(uint16_t *, struct uuid *, uint32_t *, size_t *, void *); int (*var_nextname)(size_t *, uint16_t *, struct uuid *); int (*var_set)(uint16_t *, struct uuid *, uint32_t, size_t, void *); }; extern const struct efi_ops *active_efi_ops; /* Public MI EFI functions */ static inline int efi_rt_ok(void) { if (active_efi_ops->rt_ok == NULL) return (ENXIO); return (active_efi_ops->rt_ok()); } static inline int efi_get_table(struct uuid *uuid, void **ptr) { if (active_efi_ops->get_table == NULL) return (ENXIO); return (active_efi_ops->get_table(uuid, ptr)); } static inline int efi_get_time(struct efi_tm *tm) { if (active_efi_ops->get_time == NULL) return (ENXIO); return (active_efi_ops->get_time(tm)); } static inline int efi_get_time_capabilities(struct efi_tmcap *tmcap) { if (active_efi_ops->get_time_capabilities == NULL) return (ENXIO); return (active_efi_ops->get_time_capabilities(tmcap)); } static inline int efi_reset_system(enum efi_reset type) { if (active_efi_ops->reset_system == NULL) return (ENXIO); return (active_efi_ops->reset_system(type)); } static inline int efi_set_time(struct efi_tm *tm) { if (active_efi_ops->set_time == NULL) return (ENXIO); return (active_efi_ops->set_time(tm)); } static inline int efi_var_get(uint16_t *name, struct uuid *vendor, uint32_t *attrib, size_t *datasize, void *data) { if (active_efi_ops->var_get == NULL) return (ENXIO); return (active_efi_ops->var_get(name, vendor, attrib, datasize, data)); } static inline int efi_var_nextname(size_t *namesize, uint16_t *name, struct uuid *vendor) { if (active_efi_ops->var_nextname == NULL) return (ENXIO); return (active_efi_ops->var_nextname(namesize, name, vendor)); } static inline int efi_var_set(uint16_t *name, struct uuid *vendor, uint32_t attrib, size_t datasize, void *data) { if (active_efi_ops->var_set == NULL) return (ENXIO); return (active_efi_ops->var_set(name, vendor, attrib, datasize, data)); } int efi_status_to_errno(efi_status status); #endif /* _KERNEL */ #endif /* _SYS_EFI_H_ */