dc00c828e3
and instead add platform, firmware and EFI stubs to the loader. The net effect of this change is that besides a special console and disk driver, the kernel has no knowledge of the simulator. This has the following advantages: o Simulator support is much harder to break, o It's easier to make use of more feature complete simulators. This would only need a change in the simulator specific loader, o Running SMP kernels within the simulator. Note that ski at this time does not simulate IPIs, so there's no way to start APs. The platform, firmware and EFI stubs describe the following hardware: o 4 CPU Itanium, o 128 MB RAM within the 4GB address space, o 64 MB RAM above the 4GB address space. NOTE: The stubs in the skiloader describe a machine that should in parts be defined by the simulator. Things like processor interrupt block and AP wakeup vector cannot be choosen at random because they require interpretation by the simulator. Currently the simulator is ignorant of this. This change introduces an unofficial SSC call SSC_SAL_SET_VECTORS which is ignored by the simulator. Tested with: ski (version 0.943 for linux)
268 lines
6.4 KiB
C
268 lines
6.4 KiB
C
/*
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* Copyright (c) 2003 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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* $FreeBSD$
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*/
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#include <sys/types.h>
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#include <machine/bootinfo.h>
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#include <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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extern void acpi_stub_init(void);
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extern void sal_stub_init(void);
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EFI_CONFIGURATION_TABLE efi_cfgtab[] = {
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{ ACPI_20_TABLE_GUID, &acpi_root },
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{ SAL_SYSTEM_TABLE_GUID, &sal_systab }
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};
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static EFI_STATUS GetTime(EFI_TIME *, EFI_TIME_CAPABILITIES *);
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static EFI_STATUS SetTime(EFI_TIME *);
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static EFI_STATUS GetWakeupTime(BOOLEAN *, BOOLEAN *, EFI_TIME *);
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static EFI_STATUS SetWakeupTime(BOOLEAN, EFI_TIME *);
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static EFI_STATUS SetVirtualAddressMap(UINTN, UINTN, UINT32,
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EFI_MEMORY_DESCRIPTOR*);
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static EFI_STATUS ConvertPointer(UINTN, VOID **);
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static EFI_STATUS GetVariable(CHAR16 *, EFI_GUID *, UINT32 *, UINTN *, VOID *);
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static EFI_STATUS GetNextVariableName(UINTN *, CHAR16 *, EFI_GUID *);
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static EFI_STATUS SetVariable(CHAR16 *, EFI_GUID *, UINT32, UINTN, VOID *);
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static EFI_STATUS GetNextHighMonotonicCount(UINT32 *);
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static EFI_STATUS ResetSystem(EFI_RESET_TYPE, EFI_STATUS, UINTN, CHAR16 *);
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EFI_RUNTIME_SERVICES efi_rttab = {
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/* Header. */
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{ EFI_RUNTIME_SERVICES_SIGNATURE,
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EFI_RUNTIME_SERVICES_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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EFI_SYSTEM_TABLE efi_systab = {
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/* Header. */
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{ EFI_SYSTEM_TABLE_SIGNATURE,
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EFI_SYSTEM_TABLE_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,
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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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&efi_rttab,
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NULL,
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/* Configuration tables. */
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sizeof(efi_cfgtab)/sizeof(EFI_CONFIGURATION_TABLE),
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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 (EFI_UNSUPPORTED);
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}
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static EFI_STATUS
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GetTime(EFI_TIME *time, EFI_TIME_CAPABILITIES *caps)
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{
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UINT32 comps[8];
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ssc((UINT64)comps, 0, 0, 0, SSC_GET_RTC);
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time->Year = comps[0] + 1900;
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time->Month = comps[1] + 1;
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time->Day = comps[2];
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time->Hour = comps[3];
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time->Minute = comps[4];
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time->Second = comps[5];
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time->Pad1 = time->Pad2 = 0;
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time->Nanosecond = 0;
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time->TimeZone = 0;
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time->Daylight = 0;
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return (EFI_SUCCESS);
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}
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static EFI_STATUS
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SetTime(EFI_TIME *time)
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{
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return (EFI_SUCCESS);
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}
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static EFI_STATUS
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GetWakeupTime(BOOLEAN *enabled, BOOLEAN *pending, EFI_TIME *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(BOOLEAN enable, EFI_TIME *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 delta)
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{
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UINT64 **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(UINTN mapsz, UINTN descsz, UINT32 version,
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EFI_MEMORY_DESCRIPTOR *memmap)
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{
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UINT64 delta;
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delta = memmap->VirtualStart - memmap->PhysicalStart;
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Reloc(&efi_rttab.GetTime, delta);
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Reloc(&efi_rttab.SetTime, delta);
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return (EFI_SUCCESS); /* Hah... */
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}
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static EFI_STATUS
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ConvertPointer(UINTN 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(CHAR16 *name, EFI_GUID *vendor, UINT32 *attrs, UINTN *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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GetNextVariableName(UINTN *namesz, CHAR16 *name, EFI_GUID *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(CHAR16 *name, EFI_GUID *vendor, UINT32 attrs, UINTN 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 *high)
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{
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static UINT32 counter = 0;
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*high = counter++;
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return (EFI_SUCCESS);
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}
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static EFI_STATUS
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ResetSystem(EFI_RESET_TYPE type, EFI_STATUS status, UINTN datasz,
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CHAR16 *data)
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{
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return (unsupported(__func__));
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}
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int
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ski_init_stubs(struct bootinfo *bi)
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{
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EFI_MEMORY_DESCRIPTOR *memp;
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/* Describe the SKI memory map. */
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bi->bi_memmap = (u_int64_t)(bi + 1);
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bi->bi_memmap_size = 4 * sizeof(EFI_MEMORY_DESCRIPTOR);
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bi->bi_memdesc_size = sizeof(EFI_MEMORY_DESCRIPTOR);
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bi->bi_memdesc_version = 1;
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memp = (EFI_MEMORY_DESCRIPTOR *)bi->bi_memmap;
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memp[0].Type = EfiPalCode;
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memp[0].PhysicalStart = 0x100000;
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memp[0].VirtualStart = 0;
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memp[0].NumberOfPages = (4L*1024*1024)>>12;
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memp[0].Attribute = EFI_MEMORY_WB | EFI_MEMORY_RUNTIME;
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memp[1].Type = EfiConventionalMemory;
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memp[1].PhysicalStart = 5L*1024*1024;
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memp[1].VirtualStart = 0;
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memp[1].NumberOfPages = (128L*1024*1024)>>12;
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memp[1].Attribute = EFI_MEMORY_WB;
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memp[2].Type = EfiConventionalMemory;
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memp[2].PhysicalStart = 4L*1024*1024*1024;
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memp[2].VirtualStart = 0;
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memp[2].NumberOfPages = (64L*1024*1024)>>12;
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memp[2].Attribute = EFI_MEMORY_WB;
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memp[3].Type = EfiMemoryMappedIOPortSpace;
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memp[3].PhysicalStart = 0xffffc000000;
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memp[3].VirtualStart = 0;
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memp[3].NumberOfPages = (64L*1024*1024)>>12;
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memp[3].Attribute = EFI_MEMORY_UC;
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bi->bi_systab = (u_int64_t)&efi_systab;
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sal_stub_init();
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acpi_stub_init();
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return (0);
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}
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