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Krystian Hebel 0cc0e6996c drivers/smmstore: allow full flash access for capsule updates 
With DRIVERS_EFI_UPDATE_CAPSULES enabled and when at least one capsule
was found, SMMSTORE SMI handler can use commands with the highest
bit (0x80) set to access the whole flash instead of just the SMMSTORE
region. The rest of the interface is identical to regular SMMSTORE v2
except for a new call to control full flash access.

The added call saves information about the availability of capsules in
SMM memory. The call is ignored when run more than once, meaning there
should be no way of enabling full flash handling after it was disabled
and vice versa. The call should always be made by the firmware to lock
further calls, so that an OS could not gain full flash access. This is
done on entry to BS_POST_DEVICE after capsules are obtained in
BS_DEV_INIT.

Change-Id: I7f3dbfa965b9dcbade8b2f06a5bd2ac1345c7972
Signed-off-by: Krystian Hebel <krystian.hebel@3mdeb.com>
Signed-off-by: Sergii Dmytruk <sergii.dmytruk@3mdeb.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83424
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com>
2025-04-23 14:13:14 +00:00
..
acpi Revert "acpi,Makefile: Add preload_acpi_dsdt" 2025-04-14 13:55:42 +00:00
arch-generic soc/amd/common/psp_verstage: Remove arch/io.h 2025-04-02 16:03:34 +00:00
boot drivers/option: Add forms in cbtables 2024-12-18 18:16:51 +00:00
console include/console/system76_ec.h: Remove unused <stddef.h> 2024-09-10 03:12:10 +00:00
cpu Revert "src/cpu,soc/amd/common/block/cpu: Add preload_microcode" 2025-04-14 13:55:47 +00:00
device device/pci_ids: Add Raptor Lake P root port ID 2025-04-14 13:54:31 +00:00
efi efi: Set EFIAPI to 32-bit ABI for FSP1_1 2024-09-20 23:25:30 +00:00
mipi drivers/soundwire: Support Realtek ALC712 codec 2025-04-10 04:35:21 +00:00
pc80 drivers/pc80/pc/keyboard.c: Add function to change a command byte bit 2025-01-22 20:45:37 +00:00
smp include: Add SPDX-License-Identifiers to files missing them 2022-08-01 13:59:11 +00:00
superio
sys include: Add SPDX-License-Identifiers to files missing them 2022-08-01 13:59:11 +00:00
adainit.h Add option to use Ada code in romstage 2022-12-17 20:48:06 +00:00
asan.h include: Add SPDX-License-Identifiers to files missing them 2022-08-01 13:59:11 +00:00
assert.h treewide: Remove 'extern' from functions declaration 2023-05-26 13:45:24 +00:00
b64_decode.h
base3.h
boardid.h
boot_device.h drivers/ipmi to lib: Fix misspellings & capitalization issues 2023-12-13 10:42:30 +00:00
bootblock_common.h
bootmem.h include/bootmem.h: Add comment 2024-01-18 15:30:35 +00:00
bootmode.h mb/google,samsung: Drop init_bootmode_straps() 2022-04-09 02:50:01 +00:00
bootsplash.h {drivers, lib}: Move low-battery user notification logic outside FSP 2025-03-08 07:17:32 +00:00
bootstate.h tree: Remove unused <string.h> 2024-05-29 10:34:08 +00:00
cbfs.h commonlib/bsd: Remove cb_err_t 2022-03-09 02:18:21 +00:00
cbfs_glue.h vboot: Add VBOOT_CBFS_INTEGRATION support 2022-11-08 23:03:49 +00:00
cbmem.h cbmem.h: Change return type of cbmem_get_region 2024-08-29 13:58:21 +00:00
cper.h include/cper.h: Add CPER Memory Error Section definitions 2022-12-09 03:46:33 +00:00
crc_byte.h lib/crc_byte: Parenthesize buffer address in CRC macro 2025-01-23 23:00:53 +00:00
ctype.h include: Add SPDX-License-Identifiers to files missing them 2022-08-01 13:59:11 +00:00
delay.h include: Add SPDX-License-Identifiers to files missing them 2022-08-01 13:59:11 +00:00
dimm_info_util.h
dp_aux.h
edid.h
elog.h treewide: Remove 'extern' from functions declaration 2023-05-26 13:45:24 +00:00
endian.h include/endian.h: Add 'always aligned access' support 2025-03-28 20:28:34 +00:00
espi.h include/espi.h: Switch to types.h 2022-03-27 15:13:31 +00:00
fallback.h include: Add SPDX-License-Identifiers to files missing them 2022-08-01 13:59:11 +00:00
fit.h treewide: Move device_tree to commonlib 2024-06-22 04:02:04 +00:00
fmap.h include/fmap.h: Require FMAP_SECTION_FLASH_START == 0 2025-04-18 14:56:59 +00:00
framebuffer_info.h drivers/intel/gma: Fix mismatching types for fb_add_framebuffer_info 2024-09-02 09:33:59 +00:00
fw_config.h lib/fw_config: Make fw_config_is_provisioned() always available 2023-06-17 02:40:57 +00:00
gpio.h soc/intel/common/gpio: Add function to read GPIO TX value 2023-01-25 14:33:06 +00:00
halt.h treewide: Move stdlib.h to commonlib 2024-03-15 10:09:43 +00:00
identity.h lib/version: Move board identification strings 2023-04-22 16:20:49 +00:00
imd.h
imd_private.h include/imd_private.h: Use C99 flexible arrays 2023-07-30 09:58:12 +00:00
input-event-codes.h include/input-event-codes.h: Update to latest HID tree 2024-06-21 16:46:04 +00:00
inttypes.h
kconfig.h
lib.h
limits.h include: Add SPDX-License-Identifiers to files missing them 2022-08-01 13:59:11 +00:00
main_decl.h include: Add SPDX-License-Identifiers to files missing them 2022-08-01 13:59:11 +00:00
memlayout.h Allow to build romstage sources inside the bootblock 2023-11-09 13:20:18 +00:00
memory_info.h memory_info: Bump to 64 DIMMs 2023-07-18 15:06:05 +00:00
memrange.h include/memrange.h: Remove trailing semicolon 2022-09-28 16:12:04 +00:00
metadata_hash.h
mrc_cache.h drivers/intel/fsp2_0: Introduce MRC cache store after FSP-M/S APIs 2023-09-05 09:36:17 +00:00
mtcl.h drivers/wifi: Add MTCL function to ACPI SSDT 2024-02-06 03:37:19 +00:00
nhlt.h drivers/ipmi to lib: Fix misspellings & capitalization issues 2023-12-13 10:42:30 +00:00
option.h drivers/option: Add CBFS file based option backend 2025-01-22 03:25:40 +00:00
post.h
program_loading.h lib/program_loaders.c: Mark run_ramstage with __noreturn 2022-07-14 23:10:17 +00:00
ramdetect.h
random.h arch/x86: Use 'enum cb_err' 2022-12-25 15:09:16 +00:00
reg_script.h tree: Drop duplicated <device/{path,resource}.h> 2024-04-12 04:24:20 +00:00
region_file.h
reset.h lib: Introduce early power off support Kconfig option 2025-02-15 18:59:11 +00:00
rmodule.h tree: Remove unused <string.h> 2024-05-29 10:34:08 +00:00
romstage_common.h arch/x86: Add a common romstage entry 2022-06-07 12:54:39 +00:00
romstage_handoff.h
rtc.h
rules.h lib: Remove heap from rmodules 2024-02-26 10:10:07 +00:00
sar.h drivers/wifi: Update Drive Strength BRI Rsp Table revision 2024-12-17 17:27:54 +00:00
sdram_mode.h
smbios.h arch/x86/smbios: Enhance processor characteristics detection 2025-03-21 15:05:41 +00:00
smmstore.h drivers/smmstore: allow full flash access for capsule updates 2025-04-23 14:13:14 +00:00
spd.h include/spd.h: Add SPD_MEMORY_TYPE_LPDDR3_INTEL into spd_memory_type 2024-05-09 11:24:40 +00:00
spd_bin.h spd_bin.h: Deduplicate SPD definitions 2025-03-16 05:25:07 +00:00
spd_cache.h
spi-generic.h drivers/spi: add Numonyx and Micron names to STMicro case 2024-10-09 18:09:42 +00:00
spi_bitbang.h
spi_flash.h drivers/spi: add RPMC support 2024-12-03 17:40:39 +00:00
spi_sdcard.h
stage_cache.h
stdarg.h tree: Remove unused <stdarg.h> 2024-05-28 03:22:34 +00:00
stdbool.h include/stdbool: Don't unconditionally typedef bool 2024-09-25 01:05:32 +00:00
stddef.h stddef.h: Introduce nullptr constant 2024-10-03 02:05:44 +00:00
stdint.h
stdio.h tree: Use <stdio.h> for snprintf 2024-05-29 10:33:54 +00:00
stdlib.h treewide: Move stdlib.h to commonlib 2024-03-15 10:09:43 +00:00
string.h commonlib/bsd: Add strlen() and strnlen() functions 2024-08-14 03:09:03 +00:00
swab.h include: Add SPDX-License-Identifiers to files missing them 2022-08-01 13:59:11 +00:00
symbols.h arch/x86: Add breakpoint to stack canary 2024-12-10 08:47:52 +00:00
thread.h rules.h: Use more consistent naming 2022-05-16 21:52:22 +00:00
timer.h timer: Change timer util functions to 64-bit 2022-09-14 11:55:39 +00:00
timestamp.h include: Add 'IWYU pragma: export' comment 2024-04-15 05:30:24 +00:00
types.h src/include: Introduce a new BIT_FLAG_32(x) macro 2024-09-04 18:31:25 +00:00
uuid.h
ux_locales.h lib: Add low battery UX locale message 2025-02-15 18:58:48 +00:00
vbe.h include: Add SPDX-License-Identifiers to files missing them 2022-08-01 13:59:11 +00:00
version.h lib/version: Move board identification strings 2023-04-22 16:20:49 +00:00
watchdog.h include: Add SPDX-License-Identifiers to files missing them 2022-08-01 13:59:11 +00:00
wrdd.h
xxhash.h lib/xxhash.c: Add new hash functions 2022-09-07 22:24:51 +00:00