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261 lines
5.6 KiB
C
261 lines
5.6 KiB
C
/******************************************************************************
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* ventoy.c
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*
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* Copyright (c) 2020, longpanda <admin@ventoy.net>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include <grub/types.h>
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#include <grub/misc.h>
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#include <grub/mm.h>
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#include <grub/err.h>
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#include <grub/dl.h>
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#include <grub/disk.h>
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#include <grub/device.h>
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#include <grub/term.h>
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#include <grub/partition.h>
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#include <grub/file.h>
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#include <grub/normal.h>
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#include <grub/extcmd.h>
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#include <grub/datetime.h>
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#include <grub/net.h>
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#include <grub/misc.h>
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#include <grub/kernel.h>
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#include <grub/time.h>
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#include <grub/memory.h>
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#ifdef GRUB_MACHINE_EFI
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#include <grub/efi/efi.h>
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#include <grub/efi/memory.h>
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#endif
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#include <grub/ventoy.h>
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#include "ventoy_def.h"
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GRUB_MOD_LICENSE ("GPLv3+");
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int g_ventoy_debug = 0;
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static int g_efi_os = 0xFF;
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grub_uint32_t g_ventoy_plat_data;
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void ventoy_debug(const char *fmt, ...)
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{
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va_list args;
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va_start (args, fmt);
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grub_vprintf (fmt, args);
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va_end (args);
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}
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void ventoy_str_tolower(char *str)
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{
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while (*str)
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{
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*str = grub_tolower(*str);
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str++;
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}
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}
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void ventoy_str_toupper(char *str)
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{
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while (*str)
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{
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*str = grub_toupper(*str);
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str++;
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}
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}
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char *ventoy_str_last(char *str, char ch)
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{
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char *pos = NULL;
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char *last = NULL;
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if (!str)
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{
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return NULL;
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}
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for (pos = str; *pos; pos++)
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{
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if (*pos == ch)
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{
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last = pos;
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}
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}
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return last;
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}
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int ventoy_strcmp(const char *pattern, const char *str)
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{
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while (*pattern && *str)
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{
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if ((*pattern != *str) && (*pattern != '*'))
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break;
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pattern++;
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str++;
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}
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return (int)(grub_uint8_t)*pattern - (int)(grub_uint8_t)*str;
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}
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int ventoy_strncmp (const char *pattern, const char *str, grub_size_t n)
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{
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if (n == 0)
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return 0;
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while (*pattern && *str && --n)
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{
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if ((*pattern != *str) && (*pattern != '*'))
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break;
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pattern++;
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str++;
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}
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return (int)(grub_uint8_t)*pattern - (int)(grub_uint8_t)*str;
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}
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void ventoy_debug_dump_guid(const char *prefix, grub_uint8_t *guid)
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{
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int i;
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if (!g_ventoy_debug)
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{
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return;
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}
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debug("%s", prefix);
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for (i = 0; i < 16; i++)
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{
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grub_printf("%02x ", guid[i]);
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}
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grub_printf("\n");
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}
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int ventoy_is_efi_os(void)
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{
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if (g_efi_os > 1)
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{
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g_efi_os = (grub_strstr(GRUB_PLATFORM, "efi")) ? 1 : 0;
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}
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return g_efi_os;
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}
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void * ventoy_alloc_chain(grub_size_t size)
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{
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void *p = NULL;
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p = grub_malloc(size);
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#ifdef GRUB_MACHINE_EFI
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if (!p)
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{
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p = grub_efi_allocate_any_pages(GRUB_EFI_BYTES_TO_PAGES(size));
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}
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#endif
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return p;
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}
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static int ventoy_arch_mode_init(void)
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{
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#ifdef GRUB_MACHINE_EFI
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if (grub_strcmp(GRUB_TARGET_CPU, "i386") == 0)
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{
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g_ventoy_plat_data = VTOY_PLAT_I386_UEFI;
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grub_snprintf(g_arch_mode_suffix, sizeof(g_arch_mode_suffix), "%s", "ia32");
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}
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else if (grub_strcmp(GRUB_TARGET_CPU, "arm64") == 0)
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{
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g_ventoy_plat_data = VTOY_PLAT_ARM64_UEFI;
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grub_snprintf(g_arch_mode_suffix, sizeof(g_arch_mode_suffix), "%s", "aa64");
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}
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else if (grub_strcmp(GRUB_TARGET_CPU, "mips64el") == 0)
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{
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g_ventoy_plat_data = VTOY_PLAT_MIPS_UEFI;
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grub_snprintf(g_arch_mode_suffix, sizeof(g_arch_mode_suffix), "%s", "mips");
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}
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else
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{
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g_ventoy_plat_data = VTOY_PLAT_X86_64_UEFI;
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grub_snprintf(g_arch_mode_suffix, sizeof(g_arch_mode_suffix), "%s", "uefi");
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}
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#else
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g_ventoy_plat_data = VTOY_PLAT_X86_LEGACY;
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grub_snprintf(g_arch_mode_suffix, sizeof(g_arch_mode_suffix), "%s", "legacy");
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#endif
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return 0;
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}
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#ifdef GRUB_MACHINE_EFI
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static void ventoy_get_uefi_version(char *str, grub_size_t len)
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{
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grub_efi_uint8_t uefi_minor_1, uefi_minor_2;
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uefi_minor_1 = (grub_efi_system_table->hdr.revision & 0xffff) / 10;
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uefi_minor_2 = (grub_efi_system_table->hdr.revision & 0xffff) % 10;
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grub_snprintf(str, len, "%d.%d", (grub_efi_system_table->hdr.revision >> 16), uefi_minor_1);
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if (uefi_minor_2)
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grub_snprintf(str, len, "%s.%d", str, uefi_minor_2);
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}
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#endif
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static int ventoy_calc_totalmem(grub_uint64_t addr, grub_uint64_t size, grub_memory_type_t type, void *data)
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{
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grub_uint64_t *total_mem = (grub_uint64_t *)data;
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(void)addr;
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(void)type;
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*total_mem += size;
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return 0;
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}
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static int ventoy_hwinfo_init(void)
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{
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char str[256];
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grub_uint64_t total_mem = 0;
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grub_machine_mmap_iterate(ventoy_calc_totalmem, &total_mem);
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grub_snprintf(str, sizeof(str), "%ld", (long)(total_mem / VTOY_SIZE_1MB));
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ventoy_env_export("grub_total_ram", str);
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#ifdef GRUB_MACHINE_EFI
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ventoy_get_uefi_version(str, sizeof(str));
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ventoy_env_export("grub_uefi_version", str);
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#endif
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return 0;
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}
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GRUB_MOD_INIT(ventoy)
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{
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ventoy_hwinfo_init();
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ventoy_env_init();
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ventoy_arch_mode_init();
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ventoy_register_all_cmd();
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}
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GRUB_MOD_FINI(ventoy)
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{
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ventoy_unregister_all_cmd();
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}
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