AuxXxilium/linux_dsm_epyc7002
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0db6896ff6
linux_dsm_epyc7002/arch/powerpc/platforms/pseries
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Mahesh Salgaonkar 0db6896ff6 powerpc/fadump: Do not allow hot-remove memory from fadump reserved area. 
For fadump to work successfully there should not be any holes in reserved
memory ranges where kernel has asked firmware to move the content of old
kernel memory in event of crash. Now that fadump uses CMA for reserved
area, this memory area is now not protected from hot-remove operations
unless it is cma allocated. Hence, fadump service can fail to re-register
after the hot-remove operation, if hot-removed memory belongs to fadump
reserved region. To avoid this make sure that memory from fadump reserved
area is not hot-removable if fadump is registered.

However, if user still wants to remove that memory, he can do so by
manually stopping fadump service before hot-remove operation.

Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-12-21 11:32:49 +11:00
..
cmm.c powerpc: Use octal numbers for file permissions 2018-01-22 05:48:33 +11:00
dlpar.c powerpc/pseries: PAPR persistent memory support 2018-10-19 00:56:17 +11:00
dtl.c powerpc/pseries: Fix how we iterate over the DTL entries 2018-10-03 15:40:02 +10:00
eeh_pseries.c powerpc/eeh: Cleanup eeh_ops.wait_state() 2018-10-13 22:21:25 +11:00
event_sources.c powerpc/pseries: Use of_irq_get helper() in request_event_sources_irqs() 2018-10-03 15:40:01 +10:00
firmware.c powerpc/pseries: PAPR persistent memory support 2018-10-19 00:56:17 +11:00
hotplug-cpu.c powerpc: Convert to using %pOFn instead of device_node.name 2018-10-03 15:40:01 +10:00
hotplug-memory.c powerpc/fadump: Do not allow hot-remove memory from fadump reserved area. 2018-12-21 11:32:49 +11:00
hvCall_inst.c powerpc/pseries: hcall_exit tracepoint retval should be signed 2018-05-10 23:17:43 +10:00
hvCall.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
hvconsole.c powerpc: Fix misspellings in comments. 2016-03-01 19:27:20 +11:00
hvcserver.c powerpc/pseries/hvcserver: don't memset pi_buff if it is null 2015-10-09 08:03:03 +11:00
ibmebus.c powerpc: Convert to using %pOFn instead of device_node.name 2018-10-03 15:40:01 +10:00
io_event_irq.c powerpc: Various typo fixes 2016-06-14 13:58:26 +10:00
iommu.c powerpc updates for 4.16 2018-02-02 10:01:04 -08:00
Kconfig powerpc/papr_scm: Use depend instead of select 2018-12-07 23:32:01 +11:00
kexec.c powerpc/xive: Remove xive_kexec_teardown_cpu() 2018-08-07 21:49:28 +10:00
lpar.c powerpc/pseries: Export raw per-CPU VPA data via debugfs 2018-10-20 13:26:47 +11:00
lparcfg.c powerpc/pseries: Export maximum memory value 2018-10-26 21:58:58 +11:00
Makefile powerpc/pseries: Add driver for PAPR SCM regions 2018-10-19 00:56:17 +11:00
mobility.c powerpc/pseries/mobility: Extend start/stop topology update scope 2018-10-13 22:21:25 +11:00
msi.c powerpc/eeh: Cleanup list_head field names 2018-10-13 22:21:25 +11:00
nvram.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
of_helpers.c pseries/drc-info: Search DRC properties for CPU indexes 2018-01-21 16:21:46 +11:00
of_helpers.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
offline_states.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
papr_scm.c powerpc/papr_scm: Use ibm,unit-guid as the iset cookie 2018-12-09 21:32:51 +11:00
pci_dlpar.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
pci.c powerpc/eeh: Cleanup EEH_POSTPONED_PROBE 2018-10-13 22:21:25 +11:00
pmem.c powerpc/pseries: PAPR persistent memory support 2018-10-19 00:56:17 +11:00
power.c powerpc/sparse: Include headers containing prototypes 2016-06-16 22:40:19 +10:00
pseries_energy.c pseries/drc-info: Search DRC properties for CPU indexes 2018-01-21 16:21:46 +11:00
pseries.h powerpc/pseries: PAPR persistent memory support 2018-10-19 00:56:17 +11:00
ras.c powerpc/pseries: PAPR persistent memory support 2018-10-19 00:56:17 +11:00
reconfig.c powerpc: Use octal numbers for file permissions 2018-01-22 05:48:33 +11:00
rng.c powerpc: Use hardware RNG for arch_get_random_seed_* not arch_get_random_* 2015-07-23 19:52:03 +10:00
scanlog.c powerpc: Use octal numbers for file permissions 2018-01-22 05:48:33 +11:00
setup.c powerpc: Use device_type helpers to access the node type 2018-11-26 22:33:37 +11:00
smp.c Merge branch 'topic/paca' into next 2018-03-31 09:09:36 +11:00
suspend.c powerpc: Use octal numbers for file permissions 2018-01-22 05:48:33 +11:00
vio.c powerpc: Use device_type helpers to access the node type 2018-11-26 22:33:37 +11:00