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0db89fa243
linux/drivers/acpi
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Chen Yu 0db89fa243 ACPI: Introduce Platform Firmware Runtime Update device driver 
Introduce the pfr_update driver which can be used for Platform Firmware
Runtime code injection and driver update [1].

The user is expected to provide the EFI capsule, and pass it to the
driver by writing the capsule to a device special file. The capsule
is transferred by the driver to the platform firmware with the help
of an ACPI _DSM method under the special ACPI Platform Firmware
Runtime Update device (INTC1080), and the actual firmware update is
carried out by the low-level Management Mode code in the platform
firmware.

This change allows certain pieces of the platform firmware to be
updated on the fly while the system is running (runtime) without the
need to restart it, which is key in the cases when the system needs to
be available 100% of the time and it cannot afford the downtime related
to restarting it, or when the work carried out by the system is
particularly important, so it cannot be interrupted, and it is not
practical to wait until it is complete.

Link: https://uefi.org/sites/default/files/resources/Intel_MM_OS_Interface_Spec_Rev100.pdf # [1]
Tested-by: Hongyu Ning <hongyu.ning@intel.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-12-27 17:12:58 +01:00
..
acpica ACPICA: Add support for Windows 2020 _OSI string 2021-10-05 15:53:37 +02:00
apei ACPI: APEI: mark apei_hest_parse() static 2021-10-27 20:34:47 +02:00
arm64 acpi/arm64: fix next_platform_timer() section mismatch error 2021-10-12 17:41:19 +01:00
dptf ACPI: DPTF: Add new PCH FIVR methods 2021-08-04 18:08:50 +02:00
nfit ACPI: NFIT: Use fallback node id when numa info in NFIT table is incorrect 2021-09-27 11:40:43 -07:00
numa ACPI: Add LoongArch support for ACPI_PROCESSOR/ACPI_NUMA 2021-07-16 19:09:20 +02:00
pmic ACPI: PMIC: Fix intel_pmic_regs_handler() read accesses 2021-11-03 19:28:32 +01:00
x86 ACPI: PM: Include alternate AMDI0005 id in special behaviour 2021-10-12 15:59:16 +02:00
ac.c ACPI: AC: Quirk GK45 to skip reading _PSR 2021-10-26 15:34:54 +02:00
acpi_adxl.c
acpi_amba.c ACPI: AMBA: Fix resource name in /proc/iomem 2021-06-30 20:01:10 +02:00
acpi_apd.c serial: 8250_dw: Add device HID for new AMD UART controller 2021-05-13 17:08:42 +02:00
acpi_cmos_rtc.c ACPI: cmos_rtc: Using pr_fmt() and remove PREFIX 2021-06-07 15:36:45 +02:00
acpi_configfs.c ACPI: configfs: Make get_header() to return error pointer 2021-07-16 19:20:28 +02:00
acpi_dbg.c ACPI: debug: Remove the not used function 2020-11-17 18:12:34 +01:00
acpi_extlog.c ACPI / extlog: Check for RDMSR failure 2020-10-02 19:01:55 +02:00
acpi_fpdt.c ACPI: tables: FPDT: Do not print FW_BUG message if record types are reserved 2021-08-25 20:01:07 +02:00
acpi_ipmi.c ACPI: ipmi: Remove address space handler in error path 2021-05-24 16:27:34 +02:00
acpi_lpat.c
acpi_lpit.c
acpi_lpss.c Merge branches 'acpi-glue', 'acpi-pnp', 'acpi-processor' and 'acpi-soc' 2021-11-02 18:36:40 +01:00
acpi_memhotplug.c ACPI: memhotplug: use a single static memory group for a single memory device 2021-09-08 11:50:23 -07:00
acpi_pad.c ACPI: processor: Replace deprecated CPU-hotplug functions 2021-08-04 20:25:54 +02:00
acpi_platform.c ACPI: platform: Remove ACPI_MODULE_NAME() 2020-09-25 18:25:51 +02:00
acpi_pnp.c ACPI: PNP: remove duplicated BRI0A49 and BDP3336 entries 2021-09-24 18:12:15 +02:00
acpi_processor.c ACPI: processor: Replace deprecated CPU-hotplug functions 2021-08-04 20:25:54 +02:00
acpi_tad.c ACPI: Use DEVICE_ATTR_<RW|RO|WO> macros 2021-01-22 16:17:19 +01:00
acpi_video.c ACPI: video: Add quirk for the Dell Vostro 3350 2021-06-30 20:03:41 +02:00
acpi_watchdog.c ACPI: watchdog: Replace open coded variant of resource_union() 2020-11-17 18:06:29 +01:00
battery.c ACPI: battery: Accept charges over the design capacity as full 2021-10-13 19:53:16 +02:00
bgrt.c ACPI: bgrt: Use sysfs_emit 2021-06-23 19:27:50 +02:00
blacklist.c ACPI: blacklist: Unify the message printing 2021-06-07 15:36:45 +02:00
bus.c Driver core update for 5.15-rc1 2021-09-01 08:44:42 -07:00
button.c ACPI: button: Add DMI quirk for Lenovo Yoga 9 (14INTL5) 2021-08-25 19:57:01 +02:00
container.c ACPI: container: Remove leftover ACPICA debug functionality 2020-09-25 18:25:51 +02:00
cppc_acpi.c ACPI: CPPC: Add NULL pointer check to cppc_get_perf() 2021-11-24 13:40:47 +01:00
custom_method.c ACPI: custom_method: fix a possible memory leak 2021-04-28 19:17:54 +02:00
debugfs.c ACPI: debugfs: Remove dead ACPICA debug code 2020-09-25 18:25:51 +02:00
device_pm.c ACPI: Add a convenience function to tell a device is in D0 state 2021-11-03 19:03:55 +01:00
device_sysfs.c ACPI: sysfs: fix doc warnings in device_sysfs.c 2021-06-17 14:32:05 +02:00
dock.c ACPI: replace snprintf() in "show" functions with sysfs_emit() 2021-10-13 20:02:18 +02:00
ec_sys.c
ec.c ACPI: EC: Remove initialization of static variables to false 2021-11-03 19:17:40 +01:00
event.c Merge branches 'acpi-ec', 'acpi-apei', 'acpi-soc' and 'acpi-misc' 2021-06-29 15:51:25 +02:00
evged.c ACPI: GED: fix -Wformat 2020-11-09 19:25:20 +01:00
fan.c ACPI: PM / fan: Put fan device IDs into separate header file 2021-05-21 19:02:35 +02:00
fan.h ACPI: PM / fan: Put fan device IDs into separate header file 2021-05-21 19:02:35 +02:00
glue.c Revert "ACPI: scan: Release PM resources blocked by unused objects" 2021-11-17 17:05:41 +01:00
hed.c ACPI: HED: Drop unused ACPI_MODULE_NAME() definition 2021-03-08 16:51:48 +01:00
internal.h Revert "ACPI: scan: Release PM resources blocked by unused objects" 2021-11-17 17:05:41 +01:00
ioapic.c
irq.c ACPI: irq: Prevent unregistering of GIC SGIs 2021-04-23 18:00:52 +01:00
Kconfig ACPI: Introduce Platform Firmware Runtime Update device driver 2021-12-27 17:12:58 +01:00
Makefile ACPI: Introduce Platform Firmware Runtime Update device driver 2021-12-27 17:12:58 +01:00
nvs.c Merge branches 'acpi-ec', 'acpi-apei', 'acpi-soc' and 'acpi-misc' 2021-06-29 15:51:25 +02:00
osi.c
osl.c Revert "ACPI: Add memory semantics to acpi_os_map_memory()" 2021-09-23 20:39:36 +02:00
pci_irq.c ACPI: PCI: IRQ: Consolidate printing diagnostic messages 2021-03-08 16:51:08 +01:00
pci_link.c ACPI: utils: Introduce acpi_evaluation_failure_warn() 2021-03-08 19:10:30 +01:00
pci_mcfg.c PCI: tegra: Add Tegra194 MCFG quirks for ECAM errata 2021-04-16 11:34:17 -05:00
pci_root.c PCI/ACPI: Check for _OSC support in acpi_pci_osc_control_set() 2021-09-28 16:19:37 -05:00
pci_slot.c ACPI: PCI: Remove unused ACPICA debug code 2020-09-25 18:25:51 +02:00
pfr_update.c ACPI: Introduce Platform Firmware Runtime Update device driver 2021-12-27 17:12:58 +01:00
platform_profile.c ACPI: platform-profile: call sysfs_notify() from platform_profile_store() 2021-08-16 18:32:02 +02:00
power.c ACPI: PM: Fix device wakeup power reference counting error 2021-11-05 15:43:47 +01:00
pptt.c topology: Represent clusters of CPUs within a die 2021-10-15 11:25:15 +02:00
prmt.c ACPI: PRM: Handle memory allocation and memory remap failure 2021-10-26 15:29:07 +02:00
proc.c ACPI: proc: Remove dead ACPICA debug code 2020-09-25 18:25:51 +02:00
processor_core.c ACPI: processor: Remove dead ACPICA debug code 2020-09-25 18:25:51 +02:00
processor_driver.c ACPI: processor: Get rid of ACPICA message printing 2021-03-08 16:51:19 +01:00
processor_idle.c ACPI: processor idle: Allow playing dead in C3 state 2021-09-24 18:26:27 +02:00
processor_pdc.c ACPI: processor: Get rid of ACPICA message printing 2021-03-08 16:51:19 +01:00
processor_perflib.c ACPI: processor_perflib: Cleanup print messages 2021-06-07 15:36:46 +02:00
processor_thermal.c ACPI: processor_thermal: Remove unused PREFIX for printing 2021-06-07 15:36:46 +02:00
processor_throttling.c Merge branches 'acpi-dptf' and 'acpi-messages' 2021-06-29 15:50:37 +02:00
property.c ACPI: Make acpi_node_get_parent() local 2021-11-23 19:13:00 +01:00
reboot.c ACPI: reboot: Unify the message printing 2021-06-07 15:36:46 +02:00
resource.c ACPI: resources: Add one more Medion model in IRQ override quirk 2021-10-26 15:37:32 +02:00
sbs.c ACPI: sbs: Unify the message printing 2021-06-07 15:36:46 +02:00
sbshc.c Merge branches 'acpi-ec', 'acpi-apei', 'acpi-soc' and 'acpi-misc' 2021-06-29 15:51:25 +02:00
sbshc.h ACPI: Fix whitespace inconsistencies 2020-11-09 19:08:06 +01:00
scan.c Revert "ACPI: scan: Release PM resources blocked by unused objects" 2021-11-17 17:05:41 +01:00
sleep.c ACPI: PM: sleep: Do not set suspend_ops unnecessarily 2021-10-26 15:31:46 +02:00
sleep.h Revert "Revert "ACPI: scan: Turn off unused power resources during initialization"" 2021-05-10 14:02:17 +02:00
spcr.c ACPI: SPCR: Add support for the new 16550-compatible Serial Port Subtype 2021-08-16 18:38:08 +02:00
sysfs.c Merge branches 'acpi-dptf' and 'acpi-messages' 2021-06-29 15:50:37 +02:00
tables.c memblock: exclude MEMBLOCK_NOMAP regions from kmemleak 2021-10-21 18:30:49 -10:00
thermal.c - Use the newly introduced 'hot' and 'critical' ops for the acpi 2021-02-22 09:39:11 -08:00
tiny-power-button.c ACPI: tiny-power-button: Simplify the code using module_acpi_driver() 2020-11-17 18:12:34 +01:00
utils.c ACPI: utils: Fix reference counting in for_each_acpi_dev_match() 2021-07-19 16:22:01 +02:00
video_detect.c ACPI: video: use platform backlight driver on Xiaomi Mi Pad 2 2021-11-03 19:32:21 +01:00
viot.c ACPI: Add driver for the VIOT table 2021-06-25 15:02:43 +02:00
wakeup.c ACPI: Fix whitespace inconsistencies 2020-11-09 19:08:06 +01:00