d15667174d
code uses the GetTime function from the Runtime Service, however this has been shown to not return a useable time on many arm64 UEFI implementations. Reviewed by: jhb, smh Sponsored by: ABT Systems Ltd Differential Revision: https://reviews.freebsd.org/D6709
1045 lines
25 KiB
C
1045 lines
25 KiB
C
/*-
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* Copyright (c) 2008-2010 Rui Paulo
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* Copyright (c) 2006 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/param.h>
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#include <sys/reboot.h>
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#include <sys/boot.h>
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#include <inttypes.h>
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#include <stand.h>
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#include <string.h>
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#include <setjmp.h>
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#include <efi.h>
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#include <efilib.h>
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#include <uuid.h>
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#include <bootstrap.h>
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#include <smbios.h>
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#ifdef EFI_ZFS_BOOT
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#include <libzfs.h>
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#endif
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#include "loader_efi.h"
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extern char bootprog_name[];
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extern char bootprog_rev[];
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extern char bootprog_date[];
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extern char bootprog_maker[];
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struct arch_switch archsw; /* MI/MD interface boundary */
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EFI_GUID acpi = ACPI_TABLE_GUID;
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EFI_GUID acpi20 = ACPI_20_TABLE_GUID;
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EFI_GUID devid = DEVICE_PATH_PROTOCOL;
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EFI_GUID imgid = LOADED_IMAGE_PROTOCOL;
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EFI_GUID mps = MPS_TABLE_GUID;
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EFI_GUID netid = EFI_SIMPLE_NETWORK_PROTOCOL;
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EFI_GUID smbios = SMBIOS_TABLE_GUID;
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EFI_GUID dxe = DXE_SERVICES_TABLE_GUID;
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EFI_GUID hoblist = HOB_LIST_TABLE_GUID;
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EFI_GUID memtype = MEMORY_TYPE_INFORMATION_TABLE_GUID;
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EFI_GUID debugimg = DEBUG_IMAGE_INFO_TABLE_GUID;
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EFI_GUID fdtdtb = FDT_TABLE_GUID;
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EFI_GUID inputid = SIMPLE_TEXT_INPUT_PROTOCOL;
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#ifdef EFI_ZFS_BOOT
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static void efi_zfs_probe(void);
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#endif
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/*
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* cpy8to16 copies a traditional C string into a CHAR16 string and
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* 0 terminates it. len is the size of *dst in bytes.
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*/
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static void
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cpy8to16(const char *src, CHAR16 *dst, size_t len)
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{
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len <<= 1; /* Assume CHAR16 is 2 bytes */
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while (len > 0 && *src) {
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*dst++ = *src++;
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len--;
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}
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*dst++ = (CHAR16)0;
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}
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static void
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cpy16to8(const CHAR16 *src, char *dst, size_t len)
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{
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size_t i;
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for (i = 0; i < len && src[i]; i++)
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dst[i] = (char)src[i];
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if (i < len)
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dst[i] = '\0';
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}
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static int
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has_keyboard(void)
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{
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EFI_STATUS status;
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EFI_DEVICE_PATH *path;
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EFI_HANDLE *hin, *hin_end, *walker;
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UINTN sz;
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int retval = 0;
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/*
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* Find all the handles that support the SIMPLE_TEXT_INPUT_PROTOCOL and
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* do the typical dance to get the right sized buffer.
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*/
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sz = 0;
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hin = NULL;
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status = BS->LocateHandle(ByProtocol, &inputid, 0, &sz, 0);
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if (status == EFI_BUFFER_TOO_SMALL) {
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hin = (EFI_HANDLE *)malloc(sz);
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status = BS->LocateHandle(ByProtocol, &inputid, 0, &sz,
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hin);
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if (EFI_ERROR(status))
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free(hin);
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}
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if (EFI_ERROR(status))
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return retval;
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/*
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* Look at each of the handles. If it supports the device path protocol,
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* use it to get the device path for this handle. Then see if that
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* device path matches either the USB device path for keyboards or the
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* legacy device path for keyboards.
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*/
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hin_end = &hin[sz / sizeof(*hin)];
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for (walker = hin; walker < hin_end; walker++) {
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status = BS->HandleProtocol(*walker, &devid, (VOID **)&path);
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if (EFI_ERROR(status))
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continue;
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while (!IsDevicePathEnd(path)) {
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/*
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* Check for the ACPI keyboard node. All PNP3xx nodes
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* are keyboards of different flavors. Note: It is
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* unclear of there's always a keyboard node when
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* there's a keyboard controller, or if there's only one
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* when a keyboard is detected at boot.
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*/
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if (DevicePathType(path) == ACPI_DEVICE_PATH &&
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(DevicePathSubType(path) == ACPI_DP ||
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DevicePathSubType(path) == ACPI_EXTENDED_DP)) {
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ACPI_HID_DEVICE_PATH *acpi;
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acpi = (ACPI_HID_DEVICE_PATH *)(void *)path;
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if ((EISA_ID_TO_NUM(acpi->HID) & 0xff00) == 0x300 &&
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(acpi->HID & 0xffff) == PNP_EISA_ID_CONST) {
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retval = 1;
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goto out;
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}
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/*
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* Check for USB keyboard node, if present. Unlike a
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* PS/2 keyboard, these definitely only appear when
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* connected to the system.
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*/
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} else if (DevicePathType(path) == MESSAGING_DEVICE_PATH &&
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DevicePathSubType(path) == MSG_USB_CLASS_DP) {
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USB_CLASS_DEVICE_PATH *usb;
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usb = (USB_CLASS_DEVICE_PATH *)(void *)path;
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if (usb->DeviceClass == 3 && /* HID */
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usb->DeviceSubClass == 1 && /* Boot devices */
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usb->DeviceProtocol == 1) { /* Boot keyboards */
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retval = 1;
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goto out;
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}
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}
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path = NextDevicePathNode(path);
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}
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}
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out:
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free(hin);
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return retval;
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}
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static int
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find_currdev(EFI_LOADED_IMAGE *img, struct devsw **dev, int *unit,
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uint64_t *extra)
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{
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EFI_DEVICE_PATH *devpath, *copy;
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EFI_HANDLE h;
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/*
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* Try the device handle from our loaded image first. If that
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* fails, use the device path from the loaded image and see if
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* any of the nodes in that path match one of the enumerated
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* handles.
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*/
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if (efi_handle_lookup(img->DeviceHandle, dev, unit, extra) == 0)
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return (0);
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copy = NULL;
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devpath = efi_lookup_image_devpath(IH);
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while (devpath != NULL) {
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h = efi_devpath_handle(devpath);
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if (h == NULL)
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break;
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if (efi_handle_lookup(h, dev, unit, extra) == 0) {
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if (copy != NULL)
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free(copy);
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return (0);
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}
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if (copy != NULL)
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free(copy);
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devpath = efi_lookup_devpath(h);
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if (devpath != NULL) {
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copy = efi_devpath_trim(devpath);
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devpath = copy;
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}
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}
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return (ENOENT);
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}
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EFI_STATUS
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main(int argc, CHAR16 *argv[])
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{
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char var[128];
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EFI_LOADED_IMAGE *img;
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EFI_GUID *guid;
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int i, j, vargood, unit, howto;
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struct devsw *dev;
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uint64_t pool_guid;
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UINTN k;
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int has_kbd;
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archsw.arch_autoload = efi_autoload;
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archsw.arch_getdev = efi_getdev;
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archsw.arch_copyin = efi_copyin;
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archsw.arch_copyout = efi_copyout;
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archsw.arch_readin = efi_readin;
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#ifdef EFI_ZFS_BOOT
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/* Note this needs to be set before ZFS init. */
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archsw.arch_zfs_probe = efi_zfs_probe;
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#endif
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/* Init the time source */
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efi_time_init();
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has_kbd = has_keyboard();
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/*
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* XXX Chicken-and-egg problem; we want to have console output
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* early, but some console attributes may depend on reading from
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* eg. the boot device, which we can't do yet. We can use
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* printf() etc. once this is done.
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*/
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cons_probe();
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/*
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* Initialise the block cache. Set the upper limit.
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*/
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bcache_init(32768, 512);
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/*
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* Parse the args to set the console settings, etc
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* boot1.efi passes these in, if it can read /boot.config or /boot/config
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* or iPXE may be setup to pass these in.
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*
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* Loop through the args, and for each one that contains an '=' that is
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* not the first character, add it to the environment. This allows
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* loader and kernel env vars to be passed on the command line. Convert
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* args from UCS-2 to ASCII (16 to 8 bit) as they are copied.
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*/
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howto = 0;
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for (i = 1; i < argc; i++) {
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if (argv[i][0] == '-') {
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for (j = 1; argv[i][j] != 0; j++) {
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int ch;
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ch = argv[i][j];
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switch (ch) {
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case 'a':
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howto |= RB_ASKNAME;
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break;
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case 'd':
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howto |= RB_KDB;
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break;
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case 'D':
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howto |= RB_MULTIPLE;
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break;
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case 'h':
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howto |= RB_SERIAL;
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break;
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case 'm':
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howto |= RB_MUTE;
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break;
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case 'p':
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howto |= RB_PAUSE;
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break;
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case 'P':
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if (!has_kbd)
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howto |= RB_SERIAL | RB_MULTIPLE;
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break;
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case 'r':
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howto |= RB_DFLTROOT;
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break;
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case 's':
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howto |= RB_SINGLE;
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break;
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case 'S':
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if (argv[i][j + 1] == 0) {
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if (i + 1 == argc) {
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setenv("comconsole_speed", "115200", 1);
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} else {
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cpy16to8(&argv[i + 1][0], var,
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sizeof(var));
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setenv("comconsole_speedspeed", var, 1);
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}
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i++;
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break;
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} else {
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cpy16to8(&argv[i][j + 1], var,
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sizeof(var));
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setenv("comconsole_speed", var, 1);
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break;
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}
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case 'v':
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howto |= RB_VERBOSE;
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break;
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}
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}
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} else {
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vargood = 0;
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for (j = 0; argv[i][j] != 0; j++) {
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if (j == sizeof(var)) {
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vargood = 0;
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break;
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}
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if (j > 0 && argv[i][j] == '=')
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vargood = 1;
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var[j] = (char)argv[i][j];
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}
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if (vargood) {
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var[j] = 0;
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putenv(var);
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}
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}
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}
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for (i = 0; howto_names[i].ev != NULL; i++)
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if (howto & howto_names[i].mask)
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setenv(howto_names[i].ev, "YES", 1);
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if (howto & RB_MULTIPLE) {
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if (howto & RB_SERIAL)
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setenv("console", "comconsole efi" , 1);
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else
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setenv("console", "efi comconsole" , 1);
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} else if (howto & RB_SERIAL) {
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setenv("console", "comconsole" , 1);
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}
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if (efi_copy_init()) {
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printf("failed to allocate staging area\n");
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return (EFI_BUFFER_TOO_SMALL);
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}
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|
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/*
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* March through the device switch probing for things.
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*/
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for (i = 0; devsw[i] != NULL; i++)
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if (devsw[i]->dv_init != NULL)
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(devsw[i]->dv_init)();
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/* Get our loaded image protocol interface structure. */
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BS->HandleProtocol(IH, &imgid, (VOID**)&img);
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printf("Command line arguments:");
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for (i = 0; i < argc; i++)
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printf(" %S", argv[i]);
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printf("\n");
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printf("Image base: 0x%lx\n", (u_long)img->ImageBase);
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printf("EFI version: %d.%02d\n", ST->Hdr.Revision >> 16,
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ST->Hdr.Revision & 0xffff);
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printf("EFI Firmware: %S (rev %d.%02d)\n", ST->FirmwareVendor,
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ST->FirmwareRevision >> 16, ST->FirmwareRevision & 0xffff);
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printf("\n");
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printf("%s, Revision %s\n", bootprog_name, bootprog_rev);
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printf("(%s, %s)\n", bootprog_maker, bootprog_date);
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/*
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* Disable the watchdog timer. By default the boot manager sets
|
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* the timer to 5 minutes before invoking a boot option. If we
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* want to return to the boot manager, we have to disable the
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* watchdog timer and since we're an interactive program, we don't
|
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* want to wait until the user types "quit". The timer may have
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* fired by then. We don't care if this fails. It does not prevent
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* normal functioning in any way...
|
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*/
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BS->SetWatchdogTimer(0, 0, 0, NULL);
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if (find_currdev(img, &dev, &unit, &pool_guid) != 0)
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return (EFI_NOT_FOUND);
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|
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switch (dev->dv_type) {
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#ifdef EFI_ZFS_BOOT
|
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case DEVT_ZFS: {
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struct zfs_devdesc currdev;
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currdev.d_dev = dev;
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currdev.d_unit = unit;
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currdev.d_type = currdev.d_dev->dv_type;
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currdev.d_opendata = NULL;
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currdev.pool_guid = pool_guid;
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currdev.root_guid = 0;
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env_setenv("currdev", EV_VOLATILE, efi_fmtdev(&currdev),
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efi_setcurrdev, env_nounset);
|
|
env_setenv("loaddev", EV_VOLATILE, efi_fmtdev(&currdev), env_noset,
|
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env_nounset);
|
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init_zfs_bootenv(zfs_fmtdev(&currdev));
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break;
|
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}
|
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#endif
|
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default: {
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struct devdesc currdev;
|
|
|
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currdev.d_dev = dev;
|
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currdev.d_unit = unit;
|
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currdev.d_opendata = NULL;
|
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currdev.d_type = currdev.d_dev->dv_type;
|
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env_setenv("currdev", EV_VOLATILE, efi_fmtdev(&currdev),
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efi_setcurrdev, env_nounset);
|
|
env_setenv("loaddev", EV_VOLATILE, efi_fmtdev(&currdev), env_noset,
|
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env_nounset);
|
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break;
|
|
}
|
|
}
|
|
|
|
snprintf(var, sizeof(var), "%d.%02d", ST->Hdr.Revision >> 16,
|
|
ST->Hdr.Revision & 0xffff);
|
|
env_setenv("efi-version", EV_VOLATILE, var, env_noset, env_nounset);
|
|
setenv("LINES", "24", 1); /* optional */
|
|
|
|
for (k = 0; k < ST->NumberOfTableEntries; k++) {
|
|
guid = &ST->ConfigurationTable[k].VendorGuid;
|
|
if (!memcmp(guid, &smbios, sizeof(EFI_GUID))) {
|
|
smbios_detect(ST->ConfigurationTable[k].VendorTable);
|
|
break;
|
|
}
|
|
}
|
|
|
|
interact(NULL); /* doesn't return */
|
|
|
|
return (EFI_SUCCESS); /* keep compiler happy */
|
|
}
|
|
|
|
/* XXX move to lib stand ? */
|
|
static int
|
|
wcscmp(CHAR16 *a, CHAR16 *b)
|
|
{
|
|
|
|
while (*a && *b && *a == *b) {
|
|
a++;
|
|
b++;
|
|
}
|
|
return *a - *b;
|
|
}
|
|
|
|
|
|
COMMAND_SET(reboot, "reboot", "reboot the system", command_reboot);
|
|
|
|
static int
|
|
command_reboot(int argc, char *argv[])
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; devsw[i] != NULL; ++i)
|
|
if (devsw[i]->dv_cleanup != NULL)
|
|
(devsw[i]->dv_cleanup)();
|
|
|
|
RS->ResetSystem(EfiResetCold, EFI_SUCCESS, 23,
|
|
(CHAR16 *)"Reboot from the loader");
|
|
|
|
/* NOTREACHED */
|
|
return (CMD_ERROR);
|
|
}
|
|
|
|
COMMAND_SET(quit, "quit", "exit the loader", command_quit);
|
|
|
|
static int
|
|
command_quit(int argc, char *argv[])
|
|
{
|
|
exit(0);
|
|
return (CMD_OK);
|
|
}
|
|
|
|
COMMAND_SET(memmap, "memmap", "print memory map", command_memmap);
|
|
|
|
static int
|
|
command_memmap(int argc, char *argv[])
|
|
{
|
|
UINTN sz;
|
|
EFI_MEMORY_DESCRIPTOR *map, *p;
|
|
UINTN key, dsz;
|
|
UINT32 dver;
|
|
EFI_STATUS status;
|
|
int i, ndesc;
|
|
static char *types[] = {
|
|
"Reserved",
|
|
"LoaderCode",
|
|
"LoaderData",
|
|
"BootServicesCode",
|
|
"BootServicesData",
|
|
"RuntimeServicesCode",
|
|
"RuntimeServicesData",
|
|
"ConventionalMemory",
|
|
"UnusableMemory",
|
|
"ACPIReclaimMemory",
|
|
"ACPIMemoryNVS",
|
|
"MemoryMappedIO",
|
|
"MemoryMappedIOPortSpace",
|
|
"PalCode"
|
|
};
|
|
|
|
sz = 0;
|
|
status = BS->GetMemoryMap(&sz, 0, &key, &dsz, &dver);
|
|
if (status != EFI_BUFFER_TOO_SMALL) {
|
|
printf("Can't determine memory map size\n");
|
|
return (CMD_ERROR);
|
|
}
|
|
map = malloc(sz);
|
|
status = BS->GetMemoryMap(&sz, map, &key, &dsz, &dver);
|
|
if (EFI_ERROR(status)) {
|
|
printf("Can't read memory map\n");
|
|
return (CMD_ERROR);
|
|
}
|
|
|
|
ndesc = sz / dsz;
|
|
printf("%23s %12s %12s %8s %4s\n",
|
|
"Type", "Physical", "Virtual", "#Pages", "Attr");
|
|
|
|
for (i = 0, p = map; i < ndesc;
|
|
i++, p = NextMemoryDescriptor(p, dsz)) {
|
|
printf("%23s %012jx %012jx %08jx ", types[p->Type],
|
|
(uintmax_t)p->PhysicalStart, (uintmax_t)p->VirtualStart,
|
|
(uintmax_t)p->NumberOfPages);
|
|
if (p->Attribute & EFI_MEMORY_UC)
|
|
printf("UC ");
|
|
if (p->Attribute & EFI_MEMORY_WC)
|
|
printf("WC ");
|
|
if (p->Attribute & EFI_MEMORY_WT)
|
|
printf("WT ");
|
|
if (p->Attribute & EFI_MEMORY_WB)
|
|
printf("WB ");
|
|
if (p->Attribute & EFI_MEMORY_UCE)
|
|
printf("UCE ");
|
|
if (p->Attribute & EFI_MEMORY_WP)
|
|
printf("WP ");
|
|
if (p->Attribute & EFI_MEMORY_RP)
|
|
printf("RP ");
|
|
if (p->Attribute & EFI_MEMORY_XP)
|
|
printf("XP ");
|
|
printf("\n");
|
|
}
|
|
|
|
return (CMD_OK);
|
|
}
|
|
|
|
COMMAND_SET(configuration, "configuration", "print configuration tables",
|
|
command_configuration);
|
|
|
|
static const char *
|
|
guid_to_string(EFI_GUID *guid)
|
|
{
|
|
static char buf[40];
|
|
|
|
sprintf(buf, "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
|
|
guid->Data1, guid->Data2, guid->Data3, guid->Data4[0],
|
|
guid->Data4[1], guid->Data4[2], guid->Data4[3], guid->Data4[4],
|
|
guid->Data4[5], guid->Data4[6], guid->Data4[7]);
|
|
return (buf);
|
|
}
|
|
|
|
static int
|
|
command_configuration(int argc, char *argv[])
|
|
{
|
|
UINTN i;
|
|
|
|
printf("NumberOfTableEntries=%lu\n",
|
|
(unsigned long)ST->NumberOfTableEntries);
|
|
for (i = 0; i < ST->NumberOfTableEntries; i++) {
|
|
EFI_GUID *guid;
|
|
|
|
printf(" ");
|
|
guid = &ST->ConfigurationTable[i].VendorGuid;
|
|
if (!memcmp(guid, &mps, sizeof(EFI_GUID)))
|
|
printf("MPS Table");
|
|
else if (!memcmp(guid, &acpi, sizeof(EFI_GUID)))
|
|
printf("ACPI Table");
|
|
else if (!memcmp(guid, &acpi20, sizeof(EFI_GUID)))
|
|
printf("ACPI 2.0 Table");
|
|
else if (!memcmp(guid, &smbios, sizeof(EFI_GUID)))
|
|
printf("SMBIOS Table");
|
|
else if (!memcmp(guid, &dxe, sizeof(EFI_GUID)))
|
|
printf("DXE Table");
|
|
else if (!memcmp(guid, &hoblist, sizeof(EFI_GUID)))
|
|
printf("HOB List Table");
|
|
else if (!memcmp(guid, &memtype, sizeof(EFI_GUID)))
|
|
printf("Memory Type Information Table");
|
|
else if (!memcmp(guid, &debugimg, sizeof(EFI_GUID)))
|
|
printf("Debug Image Info Table");
|
|
else if (!memcmp(guid, &fdtdtb, sizeof(EFI_GUID)))
|
|
printf("FDT Table");
|
|
else
|
|
printf("Unknown Table (%s)", guid_to_string(guid));
|
|
printf(" at %p\n", ST->ConfigurationTable[i].VendorTable);
|
|
}
|
|
|
|
return (CMD_OK);
|
|
}
|
|
|
|
|
|
COMMAND_SET(mode, "mode", "change or display EFI text modes", command_mode);
|
|
|
|
static int
|
|
command_mode(int argc, char *argv[])
|
|
{
|
|
UINTN cols, rows;
|
|
unsigned int mode;
|
|
int i;
|
|
char *cp;
|
|
char rowenv[8];
|
|
EFI_STATUS status;
|
|
SIMPLE_TEXT_OUTPUT_INTERFACE *conout;
|
|
extern void HO(void);
|
|
|
|
conout = ST->ConOut;
|
|
|
|
if (argc > 1) {
|
|
mode = strtol(argv[1], &cp, 0);
|
|
if (cp[0] != '\0') {
|
|
printf("Invalid mode\n");
|
|
return (CMD_ERROR);
|
|
}
|
|
status = conout->QueryMode(conout, mode, &cols, &rows);
|
|
if (EFI_ERROR(status)) {
|
|
printf("invalid mode %d\n", mode);
|
|
return (CMD_ERROR);
|
|
}
|
|
status = conout->SetMode(conout, mode);
|
|
if (EFI_ERROR(status)) {
|
|
printf("couldn't set mode %d\n", mode);
|
|
return (CMD_ERROR);
|
|
}
|
|
sprintf(rowenv, "%u", (unsigned)rows);
|
|
setenv("LINES", rowenv, 1);
|
|
HO(); /* set cursor */
|
|
return (CMD_OK);
|
|
}
|
|
|
|
printf("Current mode: %d\n", conout->Mode->Mode);
|
|
for (i = 0; i <= conout->Mode->MaxMode; i++) {
|
|
status = conout->QueryMode(conout, i, &cols, &rows);
|
|
if (EFI_ERROR(status))
|
|
continue;
|
|
printf("Mode %d: %u columns, %u rows\n", i, (unsigned)cols,
|
|
(unsigned)rows);
|
|
}
|
|
|
|
if (i != 0)
|
|
printf("Select a mode with the command \"mode <number>\"\n");
|
|
|
|
return (CMD_OK);
|
|
}
|
|
|
|
#ifdef EFI_ZFS_BOOT
|
|
COMMAND_SET(lszfs, "lszfs", "list child datasets of a zfs dataset",
|
|
command_lszfs);
|
|
|
|
static int
|
|
command_lszfs(int argc, char *argv[])
|
|
{
|
|
int err;
|
|
|
|
if (argc != 2) {
|
|
command_errmsg = "wrong number of arguments";
|
|
return (CMD_ERROR);
|
|
}
|
|
|
|
err = zfs_list(argv[1]);
|
|
if (err != 0) {
|
|
command_errmsg = strerror(err);
|
|
return (CMD_ERROR);
|
|
}
|
|
return (CMD_OK);
|
|
}
|
|
|
|
COMMAND_SET(reloadbe, "reloadbe", "refresh the list of ZFS Boot Environments",
|
|
command_reloadbe);
|
|
|
|
static int
|
|
command_reloadbe(int argc, char *argv[])
|
|
{
|
|
int err;
|
|
char *root;
|
|
|
|
if (argc > 2) {
|
|
command_errmsg = "wrong number of arguments";
|
|
return (CMD_ERROR);
|
|
}
|
|
|
|
if (argc == 2) {
|
|
err = zfs_bootenv(argv[1]);
|
|
} else {
|
|
root = getenv("zfs_be_root");
|
|
if (root == NULL) {
|
|
return (CMD_OK);
|
|
}
|
|
err = zfs_bootenv(root);
|
|
}
|
|
|
|
if (err != 0) {
|
|
command_errmsg = strerror(err);
|
|
return (CMD_ERROR);
|
|
}
|
|
|
|
return (CMD_OK);
|
|
}
|
|
#endif
|
|
|
|
COMMAND_SET(efishow, "efi-show", "print some or all EFI variables", command_efi_show);
|
|
|
|
static int
|
|
efi_print_var(CHAR16 *varnamearg, EFI_GUID *matchguid, int lflag)
|
|
{
|
|
UINTN datasz, i;
|
|
EFI_STATUS status;
|
|
UINT32 attr;
|
|
CHAR16 *data;
|
|
char *str;
|
|
uint32_t uuid_status;
|
|
int is_ascii;
|
|
|
|
datasz = 0;
|
|
status = RS->GetVariable(varnamearg, matchguid, &attr,
|
|
&datasz, NULL);
|
|
if (status != EFI_BUFFER_TOO_SMALL) {
|
|
printf("Can't get the variable: error %#lx\n", status);
|
|
return (CMD_ERROR);
|
|
}
|
|
data = malloc(datasz);
|
|
status = RS->GetVariable(varnamearg, matchguid, &attr,
|
|
&datasz, data);
|
|
if (status != EFI_SUCCESS) {
|
|
printf("Can't get the variable: error %#lx\n", status);
|
|
return (CMD_ERROR);
|
|
}
|
|
uuid_to_string((uuid_t *)matchguid, &str, &uuid_status);
|
|
if (lflag) {
|
|
printf("%s 0x%x %S", str, attr, varnamearg);
|
|
} else {
|
|
printf("%s 0x%x %S=", str, attr, varnamearg);
|
|
is_ascii = 1;
|
|
free(str);
|
|
str = (char *)data;
|
|
for (i = 0; i < datasz - 1; i++) {
|
|
/* Quick hack to see if this ascii-ish string printable range plus tab, cr and lf */
|
|
if ((str[i] < 32 || str[i] > 126) && str[i] != 9 && str[i] != 10 && str[i] != 13) {
|
|
is_ascii = 0;
|
|
break;
|
|
}
|
|
}
|
|
if (str[datasz - 1] != '\0')
|
|
is_ascii = 0;
|
|
if (is_ascii)
|
|
printf("%s", str);
|
|
else {
|
|
for (i = 0; i < datasz / 2; i++) {
|
|
if (isalnum(data[i]) || isspace(data[i]))
|
|
printf("%c", data[i]);
|
|
else
|
|
printf("\\x%02x", data[i]);
|
|
}
|
|
}
|
|
}
|
|
free(data);
|
|
if (pager_output("\n"))
|
|
return (CMD_WARN);
|
|
return (CMD_OK);
|
|
}
|
|
|
|
static int
|
|
command_efi_show(int argc, char *argv[])
|
|
{
|
|
/*
|
|
* efi-show [-a]
|
|
* print all the env
|
|
* efi-show -u UUID
|
|
* print all the env vars tagged with UUID
|
|
* efi-show -v var
|
|
* search all the env vars and print the ones matching var
|
|
* eif-show -u UUID -v var
|
|
* eif-show UUID var
|
|
* print all the env vars that match UUID and var
|
|
*/
|
|
/* NB: We assume EFI_GUID is the same as uuid_t */
|
|
int aflag = 0, gflag = 0, lflag = 0, vflag = 0;
|
|
int ch, rv;
|
|
unsigned i;
|
|
EFI_STATUS status;
|
|
EFI_GUID varguid = { 0,0,0,{0,0,0,0,0,0,0,0} };
|
|
EFI_GUID matchguid = { 0,0,0,{0,0,0,0,0,0,0,0} };
|
|
uint32_t uuid_status;
|
|
CHAR16 varname[128];
|
|
CHAR16 varnamearg[128];
|
|
UINTN varsz;
|
|
|
|
while ((ch = getopt(argc, argv, "ag:lv:")) != -1) {
|
|
switch (ch) {
|
|
case 'a':
|
|
aflag = 1;
|
|
break;
|
|
case 'g':
|
|
gflag = 1;
|
|
uuid_from_string(optarg, (uuid_t *)&matchguid,
|
|
&uuid_status);
|
|
if (uuid_status != uuid_s_ok) {
|
|
printf("uid %s could not be parsed\n", optarg);
|
|
return (CMD_ERROR);
|
|
}
|
|
break;
|
|
case 'l':
|
|
lflag = 1;
|
|
break;
|
|
case 'v':
|
|
vflag = 1;
|
|
if (strlen(optarg) >= nitems(varnamearg)) {
|
|
printf("Variable %s is longer than %zd characters\n",
|
|
optarg, nitems(varnamearg));
|
|
return (CMD_ERROR);
|
|
}
|
|
for (i = 0; i < strlen(optarg); i++)
|
|
varnamearg[i] = optarg[i];
|
|
varnamearg[i] = 0;
|
|
break;
|
|
default:
|
|
printf("Invalid argument %c\n", ch);
|
|
return (CMD_ERROR);
|
|
}
|
|
}
|
|
|
|
if (aflag && (gflag || vflag)) {
|
|
printf("-a isn't compatible with -v or -u\n");
|
|
return (CMD_ERROR);
|
|
}
|
|
|
|
if (aflag && optind < argc) {
|
|
printf("-a doesn't take any args");
|
|
return (CMD_ERROR);
|
|
}
|
|
|
|
if (optind == argc)
|
|
aflag = 1;
|
|
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
pager_open();
|
|
if (vflag && gflag) {
|
|
rv = efi_print_var(varnamearg, &matchguid, lflag);
|
|
pager_close();
|
|
return (rv);
|
|
}
|
|
|
|
if (argc == 2) {
|
|
optarg = argv[0];
|
|
if (strlen(optarg) >= nitems(varnamearg)) {
|
|
printf("Variable %s is longer than %zd characters\n",
|
|
optarg, nitems(varnamearg));
|
|
pager_close();
|
|
return (CMD_ERROR);
|
|
}
|
|
for (i = 0; i < strlen(optarg); i++)
|
|
varnamearg[i] = optarg[i];
|
|
varnamearg[i] = 0;
|
|
optarg = argv[1];
|
|
uuid_from_string(optarg, (uuid_t *)&matchguid,
|
|
&uuid_status);
|
|
if (uuid_status != uuid_s_ok) {
|
|
printf("uid %s could not be parsed\n", optarg);
|
|
pager_close();
|
|
return (CMD_ERROR);
|
|
}
|
|
rv = efi_print_var(varnamearg, &matchguid, lflag);
|
|
pager_close();
|
|
return (rv);
|
|
}
|
|
|
|
if (argc != 0) {
|
|
printf("Too many args\n");
|
|
pager_close();
|
|
return (CMD_ERROR);
|
|
}
|
|
|
|
/*
|
|
* Initiate the search -- note the standard takes pain
|
|
* to specify the initial call must be a poiner to a NULL
|
|
* character.
|
|
*/
|
|
varsz = nitems(varname);
|
|
varname[0] = 0;
|
|
while ((status = RS->GetNextVariableName(&varsz, varname, &varguid)) !=
|
|
EFI_NOT_FOUND) {
|
|
if (aflag) {
|
|
if (efi_print_var(varname, &varguid, lflag) != CMD_OK)
|
|
break;
|
|
continue;
|
|
}
|
|
if (vflag) {
|
|
if (wcscmp(varnamearg, varname) == 0) {
|
|
if (efi_print_var(varname, &varguid, lflag) != CMD_OK)
|
|
break;
|
|
continue;
|
|
}
|
|
}
|
|
if (gflag) {
|
|
if (memcmp(&varguid, &matchguid, sizeof(varguid)) == 0) {
|
|
if (efi_print_var(varname, &varguid, lflag) != CMD_OK)
|
|
break;
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
pager_close();
|
|
|
|
return (CMD_OK);
|
|
}
|
|
|
|
COMMAND_SET(efiset, "efi-set", "set EFI variables", command_efi_set);
|
|
|
|
static int
|
|
command_efi_set(int argc, char *argv[])
|
|
{
|
|
char *uuid, *var, *val;
|
|
CHAR16 wvar[128];
|
|
EFI_GUID guid;
|
|
uint32_t status;
|
|
EFI_STATUS err;
|
|
|
|
if (argc != 4) {
|
|
printf("efi-set uuid var new-value\n");
|
|
return (CMD_ERROR);
|
|
}
|
|
uuid = argv[1];
|
|
var = argv[2];
|
|
val = argv[3];
|
|
uuid_from_string(uuid, (uuid_t *)&guid, &status);
|
|
if (status != uuid_s_ok) {
|
|
printf("Invalid uuid %s %d\n", uuid, status);
|
|
return (CMD_ERROR);
|
|
}
|
|
cpy8to16(var, wvar, sizeof(wvar));
|
|
err = RS->SetVariable(wvar, &guid,
|
|
EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_RUNTIME_ACCESS | EFI_VARIABLE_BOOTSERVICE_ACCESS,
|
|
strlen(val) + 1, val);
|
|
if (EFI_ERROR(err)) {
|
|
printf("Failed to set variable: error %lu\n", EFI_ERROR_CODE(err));
|
|
return (CMD_ERROR);
|
|
}
|
|
return (CMD_OK);
|
|
}
|
|
|
|
COMMAND_SET(efiunset, "efi-unset", "delete / unset EFI variables", command_efi_unset);
|
|
|
|
static int
|
|
command_efi_unset(int argc, char *argv[])
|
|
{
|
|
char *uuid, *var;
|
|
CHAR16 wvar[128];
|
|
EFI_GUID guid;
|
|
uint32_t status;
|
|
EFI_STATUS err;
|
|
|
|
if (argc != 3) {
|
|
printf("efi-unset uuid var\n");
|
|
return (CMD_ERROR);
|
|
}
|
|
uuid = argv[1];
|
|
var = argv[2];
|
|
uuid_from_string(uuid, (uuid_t *)&guid, &status);
|
|
if (status != uuid_s_ok) {
|
|
printf("Invalid uuid %s\n", uuid);
|
|
return (CMD_ERROR);
|
|
}
|
|
cpy8to16(var, wvar, sizeof(wvar));
|
|
err = RS->SetVariable(wvar, &guid, 0, 0, NULL);
|
|
if (EFI_ERROR(err)) {
|
|
printf("Failed to unset variable: error %lu\n", EFI_ERROR_CODE(err));
|
|
return (CMD_ERROR);
|
|
}
|
|
return (CMD_OK);
|
|
}
|
|
|
|
#ifdef LOADER_FDT_SUPPORT
|
|
extern int command_fdt_internal(int argc, char *argv[]);
|
|
|
|
/*
|
|
* Since proper fdt command handling function is defined in fdt_loader_cmd.c,
|
|
* and declaring it as extern is in contradiction with COMMAND_SET() macro
|
|
* (which uses static pointer), we're defining wrapper function, which
|
|
* calls the proper fdt handling routine.
|
|
*/
|
|
static int
|
|
command_fdt(int argc, char *argv[])
|
|
{
|
|
|
|
return (command_fdt_internal(argc, argv));
|
|
}
|
|
|
|
COMMAND_SET(fdt, "fdt", "flattened device tree handling", command_fdt);
|
|
#endif
|
|
|
|
#ifdef EFI_ZFS_BOOT
|
|
static void
|
|
efi_zfs_probe(void)
|
|
{
|
|
EFI_HANDLE h;
|
|
u_int unit;
|
|
int i;
|
|
char dname[SPECNAMELEN + 1];
|
|
uint64_t guid;
|
|
|
|
unit = 0;
|
|
h = efi_find_handle(&efipart_dev, 0);
|
|
for (i = 0; h != NULL; h = efi_find_handle(&efipart_dev, ++i)) {
|
|
snprintf(dname, sizeof(dname), "%s%d:", efipart_dev.dv_name, i);
|
|
if (zfs_probe_dev(dname, &guid) == 0)
|
|
(void)efi_handle_update_dev(h, &zfs_dev, unit++, guid);
|
|
}
|
|
}
|
|
#endif
|