AuxXxilium/linux_dsm_epyc7002
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bb49d82dd8
linux_dsm_epyc7002/drivers/acpi
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Yasuaki Ishimatsu bb49d82dd8 ACPI / memhotplug: set info->enabled for memory present at boot time 
At http://marc.info/?l=linux-acpi&m=135769405622667&w=2 thread,
Toshi Kani mentioned as follows:

"I have a question about the change you made in commit 65479472 in
acpi_memhotplug.c.  This change seems to require that
acpi_memory_enable_device() calls add_memory() to add all memory ranges
represented by memory device objects at boot-time, and keep the results
be used for hot-remove.

If I understand it right, this add_memory() call fails with EEXIST at
boot-time since all memory ranges should have been added from EFI memory
table (or e820) already.  This results all memory ranges be marked as !
enabled & !failed.  I think this means that we cannot hot-delete any
memory ranges presented at boot-time since acpi_memory_remove_memory()
only calls remove_memory() when the enabled flag is set.  Is that
correct?"

Above mention is correct. Thus even if memory device supports hotplug,
memory presented at boot-time cannot be hot removed since the memory
device's acpi_memory_info->enabled is always 0.

This patch changes to set 1 to "acpi_memory_info->enabled" of memory
device presented at boot-time for hot removing the memory device.

Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2013-03-25 00:34:36 +01:00
..
acpica ACPICA: Update predefined info table for _MLS method 2013-01-25 13:30:48 +01:00
apei Merge branch 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac 2013-02-28 20:42:33 -08:00
ac.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
acpi_i2c.c i2c / ACPI: add ACPI enumeration support 2012-11-23 12:23:40 +01:00
acpi_ipmi.c IPMI/ACPI: Add the IPMI opregion driver to enable ACPI to access BMC controller 2010-12-14 00:22:14 -05:00
acpi_memhotplug.c ACPI / memhotplug: set info->enabled for memory present at boot time 2013-03-25 00:34:36 +01:00
acpi_pad.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
acpi_platform.c ACPI / platform: Use struct acpi_scan_handler for creating devices 2013-01-30 14:27:40 +01:00
battery.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
bgrt.c efi: Fix the ACPI BGRT driver for images located in EFI boot services memory 2012-09-29 12:21:03 -07:00
blacklist.c acpi: delete module.h include from files explicitly not needing it 2011-10-31 19:30:33 -04:00
bus.c ACPI / PM: Move device power management functions to device_pm.c 2013-01-19 22:09:22 +01:00
button.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
cm_sbs.c ACPI: Move definition of PREFIX from acpi_bus.h to internal..h 2009-08-28 19:57:27 -04:00
container.c ACPI / container: Use hotplug profile user space interface 2013-03-04 14:25:32 +01:00
csrt.c ACPI: add support for CSRT table 2013-01-19 22:16:21 +01:00
custom_method.c The sweeping change is to make add_taint() explicitly indicate whether to disable 2013-02-25 15:41:43 -08:00
debugfs.c acpi: add export.h to files using THIS_MODULE/EXPORT_SYMBOL 2011-10-31 19:30:34 -04:00
device_pm.c Merge branch 'acpi-scan' 2013-02-11 13:20:02 +01:00
dock.c ACPI / hotplug: Fix concurrency issues and memory leaks 2013-02-13 14:36:47 +01:00
ec_sys.c simple_open: automatically convert to simple_open() 2012-04-05 15:25:50 -07:00
ec.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
event.c acpi: add export.h to files using THIS_MODULE/EXPORT_SYMBOL 2011-10-31 19:30:34 -04:00
fan.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
glue.c Merge branch 'acpi-assorted' 2013-02-15 13:58:43 +01:00
hed.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
internal.h ACPI: Update PNPID set/free interfaces 2013-03-24 23:49:38 +01:00
Kconfig acpi: remove reference to ACPI_HOTPLUG_IO 2013-03-24 23:56:41 +01:00
Makefile ACPI: add support for CSRT table 2013-01-19 22:16:21 +01:00
numa.c x86, ACPI, mm: Revert movablemem_map support 2013-03-02 09:34:39 -08:00
nvs.c ACPI / PM: print physical addresses consistently with other parts of kernel 2012-03-30 02:46:57 -04:00
osl.c PCI changes for the v3.9 merge window: 2013-02-25 21:18:18 -08:00
pci_irq.c PCI/ACPI: Don't cache _PRT, and don't associate them with bus numbers 2013-02-16 11:58:34 -07:00
pci_link.c ACPI / PCI: Make PCI IRQ link driver use struct acpi_scan_handler 2013-01-30 14:27:37 +01:00
pci_root.c PCI changes for the v3.9 merge window: 2013-02-25 21:18:18 -08:00
pci_slot.c PCI changes for the v3.9 merge window: 2013-02-25 21:18:18 -08:00
power.c ACPI: Update PNPID set/free interfaces 2013-03-24 23:49:38 +01:00
proc.c ACPI / PM: Fix /proc/acpi/wakeup for devices w/o bus or parent 2013-01-27 21:40:11 +01:00
processor_core.c cpufreq / ACPI: Fix not loading acpi-cpufreq driver regression 2012-07-12 22:39:32 +02:00
processor_driver.c cpu-hotplug, memory-hotplug: try offlining the node when hotremoving a cpu 2013-02-23 17:50:13 -08:00
processor_idle.c Merge branch 'misc' into release 2013-02-18 00:25:53 -05:00
processor_perflib.c ACPI: Check MSR valid bit before using P-state frequencies 2013-01-22 13:37:21 +01:00
processor_thermal.c ACPI: Do cpufreq clamping for throttling per package v2 2012-03-22 02:16:14 -04:00
processor_throttling.c ACPI throttling: fix endian bug in acpi_read_throttling_status() 2012-03-30 16:06:12 -04:00
reboot.c Revert "ACPI: ignore FADT reset-reg-sup flag" 2012-04-20 11:19:35 -07:00
resource.c ACPI: remove unnecessary INIT_LIST_HEAD 2012-11-27 13:49:36 +01:00
sbs.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
sbshc.c ACPI: Remove useless type argument of driver .remove() operation 2013-01-26 00:37:24 +01:00
sbshc.h ACPI: SBS: Ignore alarms coming from unknown devices 2007-12-14 15:14:06 -05:00
scan.c ACPI: Verify device status after eject 2013-03-25 00:18:43 +01:00
sleep.c Merge branch 'acpi-assorted' 2013-02-15 13:58:43 +01:00
sleep.h ACPI: Drop power resources driver 2013-01-17 14:11:06 +01:00
sysfs.c ACPI / hotplug: Make acpi_hotplug_profile_ktype static 2013-03-19 00:16:15 +01:00
tables.c ACPICA: Cleanup table handler naming conflicts. 2013-01-11 13:10:16 +01:00
thermal.c Merge branch 'acpi-assorted' 2013-02-15 13:58:43 +01:00
utils.c ACPI: Add acpi_handle_<level>() interfaces 2012-11-21 23:20:22 +01:00
video_detect.c ACPI: Remove acpi_device dependency in acpi_device_set_id() 2013-03-24 23:49:38 +01:00
video.c Merge branch 'acpi-assorted' 2013-02-15 13:58:43 +01:00
wakeup.c ACPI / Wakeup: Enable button GPEs unconditionally during initialization 2011-02-12 01:39:53 +01:00