Aneesh Kumar K.V bf6b7661f4 powerpc/book3s64/radix: Add kernel command line option to disable radix GTSE ... This adds a kernel command line option that can be used to disable GTSE support. Disabling GTSE implies kernel will make hcalls to invalidate TLB entries. This was done so that we can do VM migration between configs that enable/disable GTSE support via hypervisor. To migrate a VM from a system that supports GTSE to a system that doesn't, we can boot the guest with radix_hcall_invalidate=on, thereby forcing the guest to use hcalls for TLB invalidates. The check for hcall availability is done in pSeries_setup_arch so that the panic message appears on the console. This should only happen on a hypervisor that doesn't force the guest to hash translation even though it can't handle the radix GTSE=0 request via CAS. With radix_hcall_invalidate=on if the hypervisor doesn't support hcall_rpt_invalidate hcall it should force the LPAR to hash translation. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Tested-by: Bharata B Rao <bharata@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200727085908.420806-1-aneesh.kumar@linux.ibm.com		2020-07-29 21:09:37 +10:00
..
ABI	powerpc/hv-24x7: Add sysfs files inside hv-24x7 device to show cpumask	2020-07-16 13:12:41 +10:00
accounting
admin-guide	powerpc/book3s64/radix: Add kernel command line option to disable radix GTSE	2020-07-29 21:09:37 +10:00
arm	docs: dt: convert ABI.txt to ReST format	2020-05-04 17:09:52 -05:00
arm64	docs/arm64: Fix typo'd #define in sve.rst	2020-06-15 13:17:43 +01:00
block	for-5.8-tag	2020-06-02 19:59:25 -07:00
bpf	docs/bpf: Add BPF ring buffer design notes	2020-06-01 14:38:22 -07:00
cdrom
core-api	powerpc/pseries: remove cede offline state for CPUs	2020-07-16 13:12:34 +10:00
cpu-freq
crypto
dev-tools	kcsan: Update Documentation to change supported compilers	2020-06-11 20:04:02 +02:00
devicetree	Merge branch 'i2c/for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2020-06-13 13:12:38 -07:00
doc-guide	A handful of late-arriving docs fixes, along with a patch changing a lot of	2020-06-10 14:12:15 -07:00
driver-api	Documentation: media: convert to use i2c_new_client_device()	2020-06-19 09:20:25 +02:00
fault-injection
fb	media updates for v5.8-rc1	2020-06-03 20:59:38 -07:00
features	powerpc: Select ARCH_HAS_MEMBARRIER_SYNC_CORE	2020-07-23 17:43:23 +10:00
filesystems	This is the second round of ext4 commits for 5.8 merge window. It	2020-06-15 09:32:10 -07:00
firmware_class
firmware-guide	usb: typec: Add firmware documentation for the Intel PMC mux control	2020-05-13 14:20:49 +02:00
fpga
gpu	drm/amdgpu: fix documentation around busy_percentage	2020-06-17 17:42:43 -04:00
hid
hwmon	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next	2020-06-03 16:27:18 -07:00
i2c	Documentation/i2c: SMBus start signal is S not A	2020-06-19 09:21:48 +02:00
ia64	docs: add IRQ documentation at the core-api book	2020-05-15 12:00:56 -06:00
ide
iio	docs: filesystems: convert configfs.txt to ReST	2020-05-05 09:23:25 -06:00
infiniband	RDMA/core: Remove FMR device ops	2020-06-02 20:32:54 -03:00
input
isdn
kbuild	kbuild: doc: rename LDFLAGS to KBUILD_LDFLAGS	2020-06-06 23:39:20 +09:00
kernel-hacking
leds
livepatch	livepatch: Remove .klp.arch	2020-05-08 00:12:42 +02:00
locking	A fair amount of stuff this time around, dominated by yet another massive	2020-06-01 15:45:27 -07:00
m68k
maintainer	Documentation: fixes to the maintainer-entry-profile template	2020-06-01 09:36:07 -06:00
mhi
mips
misc-devices	Replace HTTP links with HTTPS ones: documentation	2020-06-08 09:30:19 -06:00
netlabel
networking	docs: networkng: convert sja1105's devlink info to RTS	2020-06-10 17:07:04 -07:00
nios2
nvdimm	nvdimm: fixes to maintainter-entry-profile	2020-05-25 10:19:19 -06:00
openrisc
parisc
PCI	pci-v5.8-changes	2020-06-06 11:01:58 -07:00
pcmcia
power	Power management updates for 5.8-rc1	2020-06-02 13:17:23 -07:00
powerpc	Merge branch 'scv' support into next	2020-07-23 17:43:44 +10:00
process	Merge branch 'rwonce/rework' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux	2020-06-10 14:46:54 -07:00
RCU
riscv
s390	s390 updates for the 5.8 merge window	2020-06-08 12:05:31 -07:00
scheduler
scsi
security	Notifications over pipes + Keyring notifications	2020-06-13 09:56:21 -07:00
sh	Documentation: remove SH-5 index entries	2020-06-16 17:39:43 -07:00
sound
sparc
sphinx	Replace HTTP links with HTTPS ones: documentation	2020-06-08 09:30:19 -06:00
sphinx-static
spi
target	doc: don't use deprecated "---help---" markers in target docs	2020-06-13 13:32:40 -07:00
timers	timer: add fsleep for flexible sleeping	2020-05-06 17:03:34 -07:00
trace	A handful of late-arriving docs fixes, along with a patch changing a lot of	2020-06-10 14:12:15 -07:00
translations	A handful of late-arriving docs fixes, along with a patch changing a lot of	2020-06-10 14:12:15 -07:00
usb	A fair amount of stuff this time around, dominated by yet another massive	2020-06-01 15:45:27 -07:00
userspace-api	Documentation: media: convert to use i2c_new_client_device()	2020-06-19 09:20:25 +02:00
virt	KVM: PPC: Book3S HV: Save/restore new PMU registers	2020-07-22 21:56:41 +10:00
vm	A handful of late-arriving docs fixes, along with a patch changing a lot of	2020-06-10 14:12:15 -07:00
w1	w1_therm: adding bulk read support to trigger multiple conversion on bus	2020-05-15 16:29:00 +02:00
watchdog	watchdog: clarify that stop() is optional	2020-05-25 08:55:42 +02:00
x86	A fair amount of stuff this time around, dominated by yet another massive	2020-06-01 15:45:27 -07:00
xtensa
.gitignore
asm-annotations.rst
atomic_bitops.txt
atomic_t.txt
bus-virt-phys-mapping.txt
Changes
CodingStyle
conf.py	Replace HTTP links with HTTPS ones: documentation	2020-06-08 09:30:19 -06:00
COPYING-logo	Replace HTTP links with HTTPS ones: documentation	2020-06-08 09:30:19 -06:00
crc32.txt
docutils.conf
dontdiff	modpost: generate vmlinux.symvers and reuse it for the second modpost	2020-06-06 23:38:12 +09:00
index.rst	Devicetree updates for v5.8:	2020-06-04 20:11:25 -07:00
Kconfig
kprobes.txt
logo.gif
lzo.txt	lib/lzo: fix ambiguous encoding bug in lzo-rle	2020-06-11 18:17:47 -07:00
mailbox.txt
Makefile	media updates for v5.8-rc1	2020-06-03 20:59:38 -07:00
memory-barriers.txt	libnvdimm/nvdimm/flush: Allow architecture to override the flush barrier	2020-07-16 13:00:22 +10:00
nommu-mmap.txt
remoteproc.txt
rpmsg.txt
speculation.txt
static-keys.txt	Replace HTTP links with HTTPS ones: documentation	2020-06-08 09:30:19 -06:00
SubmittingPatches
tee.txt
this_cpu_ops.txt
watch_queue.rst	pipe: Add general notification queue support	2020-05-19 15:08:24 +01:00
xz.txt	Replace HTTP links with HTTPS ones: documentation	2020-06-08 09:30:19 -06:00