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coreboot-kgpe-d16/src/lib
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Werner Zeh 686018988c drivers/pc80/mc146818rtc: Check date and time for sanity 
There are cases where the RTC_VRT bit in register D stays set after a
power failure while the real date and time registers can contain rubbish
values (can happen when RTC is not buffered). If we do not detect this
invalid date and/or time here and keep it, Linux will use these bad
values for the initial timekeeper init. This in turn can lead to dates
before 1970 in user land which can break a lot assumptions.

To fix this, check date and time sanity when the RTC is initialized and
reset the values if needed.

Change-Id: I5bc600c78bab50c70372600347f63156df127012
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54914
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-05-30 20:28:14 +00:00
..
gnat lib/gnat/i-c.ads: Add uintptr_t type 2020-11-16 12:13:31 +00:00
asan.c lib/asan.c: Update SPDX license 2021-02-01 08:53:22 +00:00
b64_decode.c treewide: replace GPLv2 long form headers with SPDX header 2020-05-06 22:20:57 +00:00
bmp_logo.c drivers/intel/fsp1_1,fsp2_0: Refactor logo display 2021-02-09 07:52:31 +00:00
boot_device.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
bootblock.c security/tpm: Add option to init TPM in bootblock 2021-05-06 08:26:41 +00:00
bootmem.c lib/bootmem.c: Improve bootmem_allocate_buffer algorithm 2020-07-30 17:13:28 +00:00
bootmode.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
bootsplash.c cbfs: Simplify load/map API names, remove type arguments 2020-12-02 22:13:17 +00:00
cb.ads
cbfs.c commonlib/region: Turn addrspace_32bit into a more official API 2021-04-21 02:06:26 +00:00
cbmem_common.c src: Remove unused 'include <bootstate.h>' 2020-06-02 07:40:35 +00:00
cbmem_console.c cbmem: Introduce "early" init hooks for console 2021-05-27 23:30:42 +00:00
cbmem_stage_cache.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
compute_ip_checksum.c
coreboot_table.c lib/coreboot_table.c: Remove unnecessary CPP use 2021-05-05 08:12:34 +00:00
crc_byte.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
decompressor.c decompressor: Add CBFS_VERIFICATION support 2021-04-06 07:49:15 +00:00
delay.c
device_tree.c lib/device_tree.c: Remove repeated word 2021-01-18 07:38:49 +00:00
dimm_info_util.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
edid.c lib/edid: Add missing name descriptor presence flag 2020-10-26 13:28:41 +00:00
edid_fill_fb.c lib/edid_fill_fb: Relax bits_per_pixel constraint 2021-01-24 11:18:23 +00:00
espi_debug.c lib/espi_debug: Add espi_show_slave_peripheral_channel_configuration 2021-04-23 21:20:26 +00:00
ext_stage_cache.c src/lib: Remove unused function parameters in imd.c 2020-08-04 07:13:59 +00:00
fallback_boot.c
fit.c fit: Swap compat matching priorities for board-revX and board-skuY 2020-05-29 20:47:54 +00:00
fit_payload.c cbfs: Remove prog_locate() for payloads (SELF and FIT) 2021-03-17 00:13:53 +00:00
fmap.c commonlib/region: Turn addrspace_32bit into a more official API 2021-04-21 02:06:26 +00:00
fw_config.c fw_config: Add helper function fw_config_probe_dev 2021-05-24 16:55:27 +00:00
gcc.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
gcov-glue.c lib/gcov: Remove assert(0) 2020-08-03 10:36:00 +00:00
gcov-io.c
gcov-io.h
gcov-iov.h
gpio.c gpio: Pull down HiZ pins after reading tristate GPIO strapping 2020-08-06 23:54:41 +00:00
halt.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
hardwaremain.c include/console: Rename and update POST_ENTRY_RAMSTAGE postcode 2021-05-12 06:16:05 +00:00
hexdump.c lib/hexdump: remove hexdump32 and use hexdump instead 2021-05-27 15:41:15 +00:00
hexstrtobin.c treewide: Convert more license headers to SPDX style 2020-05-11 19:37:19 +00:00
hw-time-timer.adb treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
imd.c lib/imd: move struct definitions to a new header file 2020-10-19 06:55:03 +00:00
imd_cbmem.c lib/imd_cbmem.c: Add a helper function to indicate that cbmem is ready 2020-08-17 06:22:58 +00:00
jpeg.c src/lib/jpeg.c: Drop dead code 2020-07-09 23:50:51 +00:00
jpeg.h treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
Kconfig cbfs: Increase mcache size defaults 2021-05-14 00:35:46 +00:00
Kconfig.cbfs_verification decompressor: Add CBFS_VERIFICATION support 2021-04-06 07:49:15 +00:00
libgcc.c treewide: Replace CONFIG(ARCH_xx) tests 2020-06-17 21:13:09 +00:00
libgcov.c lib/libgcov.c: Do not redefine alloca 2020-07-29 09:27:33 +00:00
list.c treewide: replace GPLv2 long form headers with SPDX header 2020-05-06 22:20:57 +00:00
lzma.c Remove MAYBE_STATIC_BSS and ENV_STAGE_HAS_BSS_SECTION 2020-05-26 15:04:08 +00:00
lzmadecode.c
lzmadecode.h
Makefile.inc drivers/pc80/mc146818rtc: Check date and time for sanity 2021-05-30 20:28:14 +00:00
malloc.c lib: Add obvious definition for calloc 2021-04-06 06:50:38 +00:00
memchr.c
memcmp.c
memcpy.c
memmove.c
memrange.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
memset.c
metadata_hash.c src: Drop "This file is part of the coreboot project" lines 2021-05-10 15:07:33 +00:00
nhlt.c cbfs: Replace more instances of cbfs_boot_locate() with newer APIs 2021-03-17 08:10:20 +00:00
primitive_memtest.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
prog_loaders.c commonlib/region: Turn addrspace_32bit into a more official API 2021-04-21 02:06:26 +00:00
prog_ops.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
program.ld cbmem: Introduce "early" init hooks for console 2021-05-27 23:30:42 +00:00
ramdetect.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
ramtest.c src: Remove useless comments in "includes" lines 2021-02-04 10:18:49 +00:00
reg_script.c lib/reg_script: Add cast to fix compilation on x86_64 2020-12-01 16:00:57 +00:00
region_file.c region_file_update_data_arr: Modify region_file with array of buffers 2020-09-16 16:02:54 +00:00
reset.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
rmodule.c cbfs: Make mdata argument to cbfs_allocator_t const 2021-04-05 22:59:02 +00:00
rmodule.ld
romstage_handoff.c ACPI S3: Replace stashed acpi_slp_typ value 2021-01-23 20:19:47 +00:00
rtc.c lib/rtc: Add sanity check for time and date 2021-05-30 20:24:13 +00:00
selfboot.c cbfs: Remove prog_locate() for payloads (SELF and FIT) 2021-03-17 00:13:53 +00:00
spd_bin.c spd_bin: Replace get_spd_cbfs_rdev() with spd_cbfs_map() 2021-03-17 08:10:35 +00:00
spd_cache.c Remove new additions of "this file is part of" lines 2020-05-18 07:12:03 +00:00
stack.c
string.c lib/string: Add standard strstr() function 2020-08-03 05:12:23 +00:00
thread.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
timer.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
timer_queue.c src: Remove unused 'include <stddef.h> 2020-08-18 12:15:44 +00:00
timestamp.c symbols: Change implementation details of DECLARE_OPTIONAL_REGION() 2020-08-27 22:11:17 +00:00
ubsan.c lib/ubsan.c: Remove GCC 5.x workaround 2020-10-05 16:18:24 +00:00
uuid.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
version.c
wrdd.c treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00