linux_dsm_epyc7002/Documentation
Anshuman Khandual 27634d63ca mm/debug_vm_pgtable/basic: add validation for dirtiness after write protect
[ Upstream commit bb5c47ced46797409f4791d0380db3116d93134c ]

Patch series "mm/debug_vm_pgtable: Some minor updates", v3.

This series contains some cleanups and new test suggestions from Catalin
from an earlier discussion.

https://lore.kernel.org/linux-mm/20201123142237.GF17833@gaia/

This patch (of 2):

This adds validation tests for dirtiness after write protect conversion
for each page table level.  There are two new separate test types involved
here.

The first test ensures that a given page table entry does not become dirty
after pxx_wrprotect().  This is important for platforms like arm64 which
transfers and drops the hardware dirty bit (!PTE_RDONLY) to the software
dirty bit while making it an write protected one.  This test ensures that
no fresh page table entry could be created with hardware dirty bit set.
The second test ensures that a given page table entry always preserve the
dirty information across pxx_wrprotect().

This adds two previously missing PUD level basic tests and while here
fixes pxx_wrprotect() related typos in the documentation file.

Link: https://lkml.kernel.org/r/1611137241-26220-1-git-send-email-anshuman.khandual@arm.com
Link: https://lkml.kernel.org/r/1611137241-26220-2-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> [s390]
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Steven Price <steven.price@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:13 +02:00
..
ABI evm: Refuse EVM_ALLOW_METADATA_WRITES only if an HMAC key is loaded 2021-07-14 16:55:46 +02:00
accounting
admin-guide clocksource: Retry clock read if long delays detected 2021-07-14 16:56:01 +02:00
arm ARM: 9012/1: move device tree mapping out of linear region 2021-05-19 10:13:18 +02:00
arm64 arm64: Add workaround for Arm Cortex-A77 erratum 1508412 2020-10-29 12:56:01 +00:00
block block-5.10-2020-10-24 2020-10-24 12:46:42 -07:00
bpf bpf: Migrate from patchwork.ozlabs.org to patchwork.kernel.org. 2020-10-11 22:05:47 +02:00
cdrom
core-api dma-mapping: document dma_{alloc,free}_pages 2020-10-23 12:07:46 +02:00
cpu-freq
crypto
dev-tools linux-kselftest-kunit-fixes-5.10-rc5 2020-11-18 11:57:55 -08:00
devicetree ASoC: meson: gx-card: fix sound-dai dt schema 2021-06-16 12:01:45 +02:00
doc-guide docs: kerneldoc.py: add support for kerneldoc -nosymbol 2020-10-15 07:49:38 +02:00
driver-api firmware: xilinx: Remove zynqmp_pm_get_eemi_ops() in IS_REACHABLE(CONFIG_ZYNQMP_FIRMWARE) 2021-05-14 09:50:05 +02:00
fault-injection A handful of late-arriving documentation fixes. 2020-10-23 17:13:53 -07:00
fb drm fixes (round two) for 5.10-rc1 2020-10-23 13:56:34 -07:00
features s390 updates for the 5.10 merge window 2020-10-16 12:36:38 -07:00
filesystems seq_file: document how per-entry resources are managed. 2021-03-04 11:38:37 +01:00
firmware_class
firmware-guide Documentation: ACPI: fix spelling mistakes 2020-11-10 18:48:56 +01:00
fpga
gpu drm: Use USB controller's DMA mask when importing dmabufs 2021-03-17 17:06:19 +01:00
hid
hwmon hwmon: (max31790) Fix pwmX_enable attributes 2021-07-14 16:55:55 +02:00
i2c
ia64
ide
iio
infiniband
input
isdn
kbuild kbuild: remove unused OBJSIZE 2020-11-02 11:31:00 +09:00
kernel-hacking
leds docs: leds: index.rst: add a missing file 2020-11-02 13:45:37 +01:00
litmus-tests
livepatch
locking Documentation: seqlock: s/LOCKTYPE/LOCKNAME/g 2020-12-30 11:54:11 +01:00
m68k
maintainer
mhi
mips dt: Remove booting-without-of.rst 2020-10-13 13:33:16 -05:00
misc-devices Documentation: remove mic/index from misc-devices/index.rst 2020-11-04 11:38:32 +01:00
netlabel
networking docs: networking: drop special stable handling 2021-03-17 17:06:13 +01:00
nios2
nvdimm
openrisc
parisc
PCI Documentation: better locations for sysfs-pci, sysfs-tagging 2020-10-09 09:33:23 -06:00
pcmcia
power
powerpc powerpc/64s/syscall: Use pt_regs.trap to distinguish syscall ABI difference between sc and scv syscalls 2021-05-26 12:06:53 +02:00
process docs: networking: drop special stable handling 2021-03-17 17:06:13 +01:00
RCU Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu 2020-10-09 08:21:56 +02:00
riscv
s390
scheduler
scsi scsi: libsas: Introduce a _gfp() variant of event notifiers 2021-03-25 09:04:11 +01:00
security watch_queue: Drop references to /dev/watch_queue 2021-03-04 11:37:59 +01:00
sh dt: Remove booting-without-of.rst 2020-10-13 13:33:16 -05:00
sound ALSA: doc: Fix reference to mixart.rst 2021-01-19 18:27:17 +01:00
sparc
sphinx tweewide: Fix most Shebang lines 2021-05-22 11:40:55 +02:00
sphinx-static
spi
staging
target tweewide: Fix most Shebang lines 2021-05-22 11:40:55 +02:00
timers
trace tweewide: Fix most Shebang lines 2021-05-22 11:40:55 +02:00
translations net: switch to the kernel.org patchwork instance 2020-11-11 17:12:00 -08:00
usb
userspace-api media: hevc: Fix dependent slice segment flags 2021-07-14 16:55:51 +02:00
virt KVM: X86: MMU: Use the correct inherited permissions to get shadow page 2021-06-16 12:01:40 +02:00
vm mm/debug_vm_pgtable/basic: add validation for dirtiness after write protect 2021-07-14 16:56:13 +02:00
w1 docs: w1: w1_therm: Fix broken xref, mistakes, clarify text 2020-10-08 09:47:15 +02:00
watchdog
x86 x86/CPU/AMD: Save AMD NodeId as cpu_die_id 2020-12-30 11:54:29 +01:00
xtensa xtensa: fix TLBTEMP area placement 2020-11-16 02:13:15 -08:00
.gitignore
asm-annotations.rst x86/entry: Emit a symbol for register restoring thunk 2021-02-03 23:28:40 +01:00
atomic_bitops.txt
atomic_t.txt
Changes
CodingStyle
conf.py This pull contains a series of warning fixes from Mauro; once applied, the 2020-11-03 13:14:14 -08:00
COPYING-logo
docutils.conf
dontdiff kbuild: generate Module.symvers only when vmlinux exists 2021-05-19 10:12:59 +02:00
index.rst
Kconfig docs: Kconfig/Makefile: add a check for broken ABI files 2020-10-30 13:08:07 +01:00
logo.gif
Makefile A small number of fixes, plus a build tweak to respect the desire for 2020-11-03 09:57:30 -08:00
memory-barriers.txt
SubmittingPatches
watch_queue.rst