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76ceb3c6ee
boundaries. For good measure, align all other objects to cache lines boundaries. Use the new arch_loadseg I/F to keep track of kernel text and data so that we can wire as much of it as is possible. It is the responsibility of the kernel to link critical (read IVT related) code and data at the front of the respective segment so that it's covered by TRs before the kernel has a chance to add more translations. Use a better way of determining whether we're loading a legacy kernel or not. We can't check for the presence of the PBVM page table, because we may have unloaded that kernel and loaded an older (legacy) kernel after that. Simply use the latest load address for it.
260 lines
6.3 KiB
C
260 lines
6.3 KiB
C
/*-
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* Copyright (c) 2003,2004 Marcel Moolenaar
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <machine/bootinfo.h>
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#include <machine/efi.h>
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#include <stand.h>
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#include "libski.h"
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extern void acpi_root;
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extern void sal_systab;
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struct efi_cfgtbl efi_cfgtab[] = {
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{ EFI_TABLE_ACPI20, (intptr_t)&acpi_root },
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{ EFI_TABLE_SAL, (intptr_t)&sal_systab }
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};
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static efi_status GetTime(struct efi_tm *, struct efi_tmcap *);
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static efi_status SetTime(struct efi_tm *);
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static efi_status GetWakeupTime(uint8_t *, uint8_t *, struct efi_tm *);
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static efi_status SetWakeupTime(uint8_t, struct efi_tm *);
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static efi_status SetVirtualAddressMap(u_long, u_long, uint32_t,
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struct efi_md*);
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static efi_status ConvertPointer(u_long, void **);
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static efi_status GetVariable(efi_char *, struct uuid *, uint32_t *, u_long *,
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void *);
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static efi_status GetNextVariableName(u_long *, efi_char *, struct uuid *);
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static efi_status SetVariable(efi_char *, struct uuid *, uint32_t, u_long,
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void *);
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static efi_status GetNextHighMonotonicCount(uint32_t *);
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static efi_status ResetSystem(enum efi_reset, efi_status, u_long, efi_char *);
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struct efi_rt efi_rttab = {
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/* Header. */
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{ 0, /* XXX Signature */
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0, /* XXX Revision */
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0, /* XXX HeaderSize */
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0, /* XXX CRC32 */
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},
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/* Time services */
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GetTime,
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SetTime,
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GetWakeupTime,
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SetWakeupTime,
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/* Virtual memory services */
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SetVirtualAddressMap,
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ConvertPointer,
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/* Variable services */
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GetVariable,
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GetNextVariableName,
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SetVariable,
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/* Misc */
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GetNextHighMonotonicCount,
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ResetSystem
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};
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struct efi_systbl efi_systab = {
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/* Header. */
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{ EFI_SYSTBL_SIG,
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0, /* XXX Revision */
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0, /* XXX HeaderSize */
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0, /* XXX CRC32 */
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},
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/* Firmware info. */
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L"FreeBSD", 0, 0,
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/* Console stuff. */
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NULL, NULL,
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NULL, NULL,
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NULL, NULL,
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/* Services (runtime first). */
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(intptr_t)&efi_rttab,
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NULL,
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/* Configuration tables. */
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sizeof(efi_cfgtab)/sizeof(struct efi_cfgtbl),
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(intptr_t)efi_cfgtab
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};
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static efi_status
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unsupported(const char *func)
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{
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printf("EFI: %s not supported\n", func);
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return ((1UL << 63) + 3);
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}
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static efi_status
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GetTime(struct efi_tm *time, struct efi_tmcap *caps)
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{
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uint32_t comps[8];
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ssc((uint64_t)comps, 0, 0, 0, SSC_GET_RTC);
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time->tm_year = comps[0] + 1900;
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time->tm_mon = comps[1] + 1;
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time->tm_mday = comps[2];
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time->tm_hour = comps[3];
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time->tm_min = comps[4];
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time->tm_sec = comps[5];
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time->__pad1 = time->__pad2 = 0;
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time->tm_nsec = 0;
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time->tm_tz = 0;
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time->tm_dst = 0;
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return (0);
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}
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static efi_status
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SetTime(struct efi_tm *time)
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{
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return (0);
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}
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static efi_status
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GetWakeupTime(uint8_t *enabled, uint8_t *pending, struct efi_tm *time)
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{
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return (unsupported(__func__));
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}
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static efi_status
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SetWakeupTime(uint8_t enable, struct efi_tm *time)
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{
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return (unsupported(__func__));
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}
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static void
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Reloc(void *addr, uint64_t delta)
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{
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uint64_t **fpp = addr;
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*fpp[0] += delta;
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*fpp[1] += delta;
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*fpp += delta >> 3;
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}
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static efi_status
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SetVirtualAddressMap(u_long mapsz, u_long descsz, uint32_t version,
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struct efi_md *memmap)
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{
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uint64_t delta;
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delta = (uintptr_t)memmap->md_virt - memmap->md_phys;
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Reloc(&efi_rttab.rt_gettime, delta);
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Reloc(&efi_rttab.rt_settime, delta);
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return (0); /* Hah... */
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}
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static efi_status
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ConvertPointer(u_long debug, void **addr)
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{
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return (unsupported(__func__));
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}
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static efi_status
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GetVariable(efi_char *name, struct uuid *vendor, uint32_t *attrs,
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u_long *datasz, void *data)
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{
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return (unsupported(__func__));
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}
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static efi_status
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GetNextVariableName(u_long *namesz, efi_char *name, struct uuid *vendor)
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{
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return (unsupported(__func__));
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}
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static efi_status
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SetVariable(efi_char *name, struct uuid *vendor, uint32_t attrs, u_long datasz,
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void *data)
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{
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return (unsupported(__func__));
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}
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static efi_status
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GetNextHighMonotonicCount(uint32_t *high)
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{
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static uint32_t counter = 0;
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*high = counter++;
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return (0);
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}
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static efi_status
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ResetSystem(enum efi_reset type, efi_status status, u_long datasz,
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efi_char *data)
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{
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return (unsupported(__func__));
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}
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void
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efi_stub_init(struct bootinfo *bi)
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{
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static struct efi_md memmap[4];
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/* Describe the SKI memory map. */
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bi->bi_memmap = (uintptr_t)(void *)memmap;
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bi->bi_memmap_size = sizeof(memmap);
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bi->bi_memdesc_size = sizeof(struct efi_md);
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bi->bi_memdesc_version = 1;
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memmap[0].md_type = EFI_MD_TYPE_PALCODE;
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memmap[0].md_phys = 0x100000;
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memmap[0].md_virt = NULL;
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memmap[0].md_pages = (1L*1024*1024)>>12;
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memmap[0].md_attr = EFI_MD_ATTR_WB | EFI_MD_ATTR_RT;
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memmap[1].md_type = EFI_MD_TYPE_FREE;
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memmap[1].md_phys = 4L*1024*1024;
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memmap[1].md_virt = NULL;
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memmap[1].md_pages = (128L*1024*1024)>>12;
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memmap[1].md_attr = EFI_MD_ATTR_WB;
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memmap[2].md_type = EFI_MD_TYPE_FREE;
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memmap[2].md_phys = 4L*1024*1024*1024;
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memmap[2].md_virt = NULL;
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memmap[2].md_pages = (64L*1024*1024)>>12;
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memmap[2].md_attr = EFI_MD_ATTR_WB;
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memmap[3].md_type = EFI_MD_TYPE_IOPORT;
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memmap[3].md_phys = 0xffffc000000;
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memmap[3].md_virt = NULL;
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memmap[3].md_pages = (64L*1024*1024)>>12;
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memmap[3].md_attr = EFI_MD_ATTR_UC;
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bi->bi_systab = (u_int64_t)&efi_systab;
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}
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