diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:51 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:51 +0000 |
commit | 6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e (patch) | |
tree | 32451fa3cdd9321fb2591fada9891b2cb70a9cd1 /grub-core/commands/i386/coreboot/cb_timestamps.c | |
parent | Initial commit. (diff) | |
download | grub2-6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e.tar.xz grub2-6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e.zip |
Adding upstream version 2.06.upstream/2.06upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | grub-core/commands/i386/coreboot/cb_timestamps.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/grub-core/commands/i386/coreboot/cb_timestamps.c b/grub-core/commands/i386/coreboot/cb_timestamps.c new file mode 100644 index 0000000..e97ea6b --- /dev/null +++ b/grub-core/commands/i386/coreboot/cb_timestamps.c @@ -0,0 +1,126 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2013 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <grub/dl.h> +#include <grub/misc.h> +#include <grub/command.h> +#include <grub/i18n.h> +#include <grub/coreboot/lbio.h> +#include <grub/i386/tsc.h> + +GRUB_MOD_LICENSE ("GPLv3+"); + +static grub_uint32_t +tsc2ms (grub_uint64_t tsc) +{ + grub_uint64_t ah = tsc >> 32; + grub_uint64_t al = tsc & 0xffffffff; + + return ((al * grub_tsc_rate) >> 32) + ah * grub_tsc_rate; +} + +static const char *descs[] = { + [1] = "romstage", + [2] = "before RAM init", + [3] = "after RAM init", + [4] = "end of romstage", + [5] = "start of verified boot", + [6] = "end of verified boot", + [8] = "start of RAM copy", + [9] = "end of RAM copy", + [10] = "start of ramstage", + [11] = "start of bootblock", + [12] = "end of bootblock", + [13] = "starting to load romstage", + [14] = "finished loading romstage", + [15] = "starting LZMA decompress (ignore for x86)", + [16] = "finished LZMA decompress (ignore for x86)", + [30] = "device enumerate", + [40] = "device configure", + [50] = "device enable", + [60] = "device initialize", + [70] = "device done", + [75] = "CBMEM POST", + [80] = "writing tables", + [90] = "loading payload", + [98] = "wake jump", + [99] = "selfboot jump", +}; + +static int +iterate_linuxbios_table (grub_linuxbios_table_item_t table_item, + void *data) +{ + int *available = data; + grub_uint64_t last_tsc = 0; + struct grub_linuxbios_timestamp_table *ts_table; + unsigned i; + + if (table_item->tag != GRUB_LINUXBIOS_MEMBER_TIMESTAMPS) + return 0; + + *available = 1; + ts_table = (struct grub_linuxbios_timestamp_table *) (grub_addr_t) + *(grub_uint64_t *) (table_item + 1); + + for (i = 0; i < ts_table->used; i++) + { + grub_uint32_t tmabs = tsc2ms (ts_table->entries[i].tsc); + grub_uint32_t tmrel = tsc2ms (ts_table->entries[i].tsc - last_tsc); + last_tsc = ts_table->entries[i].tsc; + + grub_printf ("%3d.%03ds %2d.%03ds %02d %s\n", + tmabs / 1000, tmabs % 1000, tmrel / 1000, tmrel % 1000, + ts_table->entries[i].id, + (ts_table->entries[i].id < ARRAY_SIZE (descs) + && descs[ts_table->entries[i].id]) + ? descs[ts_table->entries[i].id] : ""); + } + return 1; +} + + +static grub_err_t +grub_cmd_coreboot_boottime (struct grub_command *cmd __attribute__ ((unused)), + int argc __attribute__ ((unused)), + char *argv[] __attribute__ ((unused))) +{ + int available = 0; + + grub_linuxbios_table_iterate (iterate_linuxbios_table, &available); + if (!available) + { + grub_puts_ (N_("No boot time statistics is available\n")); + return 0; + } + return 0; +} + +static grub_command_t cmd_boottime; + +GRUB_MOD_INIT(cbtime) +{ + cmd_boottime = + grub_register_command ("coreboot_boottime", grub_cmd_coreboot_boottime, + 0, N_("Show coreboot boot time statistics.")); +} + +GRUB_MOD_FINI(cbtime) +{ + grub_unregister_command (cmd_boottime); +} |