#
360823a0 |
| 17-Feb-2025 |
Andrew Jeffery <andrew@codeconstruct.com.au> |
Merge tag 'v6.6.78' into for/openbmc/dev-6.6
This is the 6.6.78 stable release
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Merge tag 'v6.6.78' into for/openbmc/dev-6.6
This is the 6.6.78 stable release
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Revision tags: v6.6.78, v6.6.77, v6.6.76, v6.6.75, v6.6.74, v6.6.73, v6.6.72, v6.6.71, v6.12.9, v6.6.70, v6.12.8, v6.6.69, v6.12.7, v6.6.68, v6.12.6, v6.6.67, v6.12.5, v6.6.66, v6.6.65, v6.12.4, v6.6.64, v6.12.3, v6.12.2, v6.6.63, v6.12.1, v6.12, v6.6.62, v6.6.61, v6.6.60, v6.6.59, v6.6.58, v6.6.57, v6.6.56, v6.6.55, v6.6.54, v6.6.53, v6.6.52, v6.6.51, v6.6.50, v6.6.49, v6.6.48, v6.6.47, v6.6.46, v6.6.45, v6.6.44, v6.6.43, v6.6.42, v6.6.41 |
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#
d113f972 |
| 17-Jul-2024 |
Steve Wahl <steve.wahl@hpe.com> |
x86/mm/ident_map: Use gbpages only where full GB page should be mapped.
commit cc31744a294584a36bf764a0ffa3255a8e69f036 upstream.
When ident_pud_init() uses only GB pages to create identity maps, l
x86/mm/ident_map: Use gbpages only where full GB page should be mapped.
commit cc31744a294584a36bf764a0ffa3255a8e69f036 upstream.
When ident_pud_init() uses only GB pages to create identity maps, large ranges of addresses not actually requested can be included in the resulting table; a 4K request will map a full GB. This can include a lot of extra address space past that requested, including areas marked reserved by the BIOS. That allows processor speculation into reserved regions, that on UV systems can cause system halts.
Only use GB pages when map creation requests include the full GB page of space. Fall back to using smaller 2M pages when only portions of a GB page are included in the request.
No attempt is made to coalesce mapping requests. If a request requires a map entry at the 2M (pmd) level, subsequent mapping requests within the same 1G region will also be at the pmd level, even if adjacent or overlapping such requests could have been combined to map a full GB page. Existing usage starts with larger regions and then adds smaller regions, so this should not have any great consequence.
Signed-off-by: Steve Wahl <steve.wahl@hpe.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Pavin Joseph <me@pavinjoseph.com> Tested-by: Sarah Brofeldt <srhb@dbc.dk> Tested-by: Eric Hagberg <ehagberg@gmail.com> Link: https://lore.kernel.org/all/20240717213121.3064030-3-steve.wahl@hpe.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
278002ed |
| 15-Dec-2024 |
Andrew Jeffery <andrew@codeconstruct.com.au> |
Merge tag 'v6.6.66' into for/openbmc/dev-6.6
This is the 6.6.66 stable release
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#
af3fde61 |
| 04-Dec-2024 |
David Woodhouse <dwmw@amazon.co.uk> |
x86/mm: Add _PAGE_NOPTISHADOW bit to avoid updating userspace page tables
commit d0ceea662d459726487030237689835fcc0483e5 upstream.
The set_p4d() and set_pgd() functions (in 4-level or 5-level page
x86/mm: Add _PAGE_NOPTISHADOW bit to avoid updating userspace page tables
commit d0ceea662d459726487030237689835fcc0483e5 upstream.
The set_p4d() and set_pgd() functions (in 4-level or 5-level page table setups respectively) assume that the root page table is actually a 8KiB allocation, with the userspace root immediately after the kernel root page table (so that the former can enforce NX on on all the subordinate page tables, which are actually shared).
However, users of the kernel_ident_mapping_init() code do not give it an 8KiB allocation for its PGD. Both swsusp_arch_resume() and acpi_mp_setup_reset() allocate only a single 4KiB page. The kexec code on x86_64 currently gets away with it purely by chance, because it allocates 8KiB for its "control code page" and then actually uses the first half for the PGD, then copies the actual trampoline code into the second half only after the identmap code has finished scribbling over it.
Fix this by defining a _PAGE_NOPTISHADOW bit (which can use the same bit as _PAGE_SAVED_DIRTY since one is only for the PGD/P4D root and the other is exclusively for leaf PTEs.). This instructs __pti_set_user_pgtbl() not to write to the userspace 'shadow' PGD.
Strictly, the _PAGE_NOPTISHADOW bit doesn't need to be written out to the actual page tables; since __pti_set_user_pgtbl() returns the value to be written to the kernel page table, it could be filtered out. But there seems to be no benefit to actually doing so.
Suggested-by: Dave Hansen <dave.hansen@intel.com> Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/412c90a4df7aef077141d9f68d19cbe5602d6c6d.camel@infradead.org Cc: stable@kernel.org Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@surriel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Revision tags: v6.6.40, v6.6.39, v6.6.38, v6.6.37, v6.6.36, v6.6.35, v6.6.34, v6.6.33, v6.6.32, v6.6.31, v6.6.30, v6.6.29, v6.6.28, v6.6.27 |
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#
86aa961b |
| 10-Apr-2024 |
Andrew Jeffery <andrew@codeconstruct.com.au> |
Merge tag 'v6.6.26' into dev-6.6
This is the 6.6.26 stable release
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Revision tags: v6.6.26, v6.6.25, v6.6.24, v6.6.23 |
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#
fbc0a833 |
| 25-Mar-2024 |
Ingo Molnar <mingo@kernel.org> |
Revert "x86/mm/ident_map: Use gbpages only where full GB page should be mapped."
[ Upstream commit c567f2948f57bdc03ed03403ae0234085f376b7d ]
This reverts commit d794734c9bbfe22f86686dc2909c25f5ffe
Revert "x86/mm/ident_map: Use gbpages only where full GB page should be mapped."
[ Upstream commit c567f2948f57bdc03ed03403ae0234085f376b7d ]
This reverts commit d794734c9bbfe22f86686dc2909c25f5ffe1a572.
While the original change tries to fix a bug, it also unintentionally broke existing systems, see the regressions reported at:
https://lore.kernel.org/all/3a1b9909-45ac-4f97-ad68-d16ef1ce99db@pavinjoseph.com/
Since d794734c9bbf was also marked for -stable, let's back it out before causing more damage.
Note that due to another upstream change the revert was not 100% automatic:
0a845e0f6348 mm/treewide: replace pud_large() with pud_leaf()
Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: <stable@vger.kernel.org> Cc: Russ Anderson <rja@hpe.com> Cc: Steve Wahl <steve.wahl@hpe.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Link: https://lore.kernel.org/all/3a1b9909-45ac-4f97-ad68-d16ef1ce99db@pavinjoseph.com/ Fixes: d794734c9bbf ("x86/mm/ident_map: Use gbpages only where full GB page should be mapped.") Signed-off-by: Sasha Levin <sashal@kernel.org>
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#
907835e6 |
| 04-Mar-2024 |
Peter Xu <peterx@redhat.com> |
mm/treewide: replace pud_large() with pud_leaf()
[ Upstream commit 0a845e0f6348ccfa2dcc8c450ffd1c9ffe8c4add ]
pud_large() is always defined as pud_leaf(). Merge their usages. Chose pud_leaf() bec
mm/treewide: replace pud_large() with pud_leaf()
[ Upstream commit 0a845e0f6348ccfa2dcc8c450ffd1c9ffe8c4add ]
pud_large() is always defined as pud_leaf(). Merge their usages. Chose pud_leaf() because pud_leaf() is a global API, while pud_large() is not.
Link: https://lkml.kernel.org/r/20240305043750.93762-9-peterx@redhat.com Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Cc: Alexander Potapenko <glider@google.com> Cc: Andrey Konovalov <andreyknvl@gmail.com> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Muchun Song <muchun.song@linux.dev> Cc: "Naveen N. Rao" <naveen.n.rao@linux.ibm.com> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: Yang Shi <shy828301@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Stable-dep-of: c567f2948f57 ("Revert "x86/mm/ident_map: Use gbpages only where full GB page should be mapped."") Signed-off-by: Sasha Levin <sashal@kernel.org>
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#
c595db6d |
| 13-Mar-2024 |
Andrew Jeffery <andrew@codeconstruct.com.au> |
Merge tag 'v6.6.18' into dev-6.6
This is the 6.6.18 stable release
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Revision tags: v6.6.16, v6.6.15 |
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#
1dc09ca8 |
| 26-Jan-2024 |
Steve Wahl <steve.wahl@hpe.com> |
x86/mm/ident_map: Use gbpages only where full GB page should be mapped.
commit d794734c9bbfe22f86686dc2909c25f5ffe1a572 upstream.
When ident_pud_init() uses only gbpages to create identity maps, la
x86/mm/ident_map: Use gbpages only where full GB page should be mapped.
commit d794734c9bbfe22f86686dc2909c25f5ffe1a572 upstream.
When ident_pud_init() uses only gbpages to create identity maps, large ranges of addresses not actually requested can be included in the resulting table; a 4K request will map a full GB. On UV systems, this ends up including regions that will cause hardware to halt the system if accessed (these are marked "reserved" by BIOS). Even processor speculation into these regions is enough to trigger the system halt.
Only use gbpages when map creation requests include the full GB page of space. Fall back to using smaller 2M pages when only portions of a GB page are included in the request.
No attempt is made to coalesce mapping requests. If a request requires a map entry at the 2M (pmd) level, subsequent mapping requests within the same 1G region will also be at the pmd level, even if adjacent or overlapping such requests could have been combined to map a full gbpage. Existing usage starts with larger regions and then adds smaller regions, so this should not have any great consequence.
[ dhansen: fix up comment formatting, simplifty changelog ]
Signed-off-by: Steve Wahl <steve.wahl@hpe.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/all/20240126164841.170866-1-steve.wahl%40hpe.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Revision tags: v6.6.14, v6.6.13, v6.6.12, v6.6.11, v6.6.10, v6.6.9, v6.6.8, v6.6.7, v6.6.6, v6.6.5, v6.6.4, v6.6.3, v6.6.2, v6.5.11, v6.6.1, v6.5.10, v6.6, v6.5.9, v6.5.8, v6.5.7, v6.5.6, v6.5.5, v6.5.4, v6.5.3, v6.5.2, v6.1.51, v6.5.1, v6.1.50, v6.5, v6.1.49, v6.1.48, v6.1.46, v6.1.45, v6.1.44, v6.1.43, v6.1.42, v6.1.41, v6.1.40, v6.1.39, v6.1.38, v6.1.37, v6.1.36, v6.4, v6.1.35, v6.1.34, v6.1.33, v6.1.32, v6.1.31, v6.1.30, v6.1.29, v6.1.28, v6.1.27, v6.1.26, v6.3, v6.1.25, v6.1.24, v6.1.23, v6.1.22, v6.1.21, v6.1.20, v6.1.19, v6.1.18, v6.1.17, v6.1.16, v6.1.15, v6.1.14, v6.1.13, v6.2, v6.1.12, v6.1.11, v6.1.10, v6.1.9, v6.1.8, v6.1.7, v6.1.6, v6.1.5, v6.0.19, v6.0.18, v6.1.4, v6.1.3, v6.0.17, v6.1.2, v6.0.16, v6.1.1, v6.0.15, v6.0.14, v6.0.13, v6.1, v6.0.12, v6.0.11, v6.0.10, v5.15.80, v6.0.9, v5.15.79, v6.0.8, v5.15.78, v6.0.7, v5.15.77, v5.15.76, v6.0.6, v6.0.5, v5.15.75, v6.0.4, v6.0.3, v6.0.2, v5.15.74, v5.15.73, v6.0.1, v5.15.72, v6.0, v5.15.71, v5.15.70, v5.15.69, v5.15.68, v5.15.67, v5.15.66, v5.15.65, v5.15.64, v5.15.63, v5.15.62, v5.15.61, v5.15.60, v5.15.59, v5.19, v5.15.58, v5.15.57, v5.15.56, v5.15.55, v5.15.54, v5.15.53, v5.15.52, v5.15.51, v5.15.50, v5.15.49, v5.15.48, v5.15.47, v5.15.46, v5.15.45, v5.15.44, v5.15.43, v5.15.42, v5.18, v5.15.41, v5.15.40, v5.15.39, v5.15.38, v5.15.37, v5.15.36, v5.15.35, v5.15.34, v5.15.33, v5.15.32, v5.15.31, v5.17, v5.15.30, v5.15.29, v5.15.28, v5.15.27, v5.15.26, v5.15.25, v5.15.24, v5.15.23, v5.15.22, v5.15.21, v5.15.20, v5.15.19, v5.15.18, v5.15.17, v5.4.173, v5.15.16, v5.15.15, v5.16, v5.15.10, v5.15.9, v5.15.8, v5.15.7, v5.15.6, v5.15.5, v5.15.4, v5.15.3, v5.15.2, v5.15.1, v5.15, v5.14.14, v5.14.13, v5.14.12, v5.14.11, v5.14.10, v5.14.9, v5.14.8, v5.14.7, v5.14.6, v5.10.67, v5.10.66, v5.14.5, v5.14.4, v5.10.65, v5.14.3, v5.10.64, v5.14.2, v5.10.63, v5.14.1, v5.10.62, v5.14, v5.10.61, v5.10.60, v5.10.53, v5.10.52, v5.10.51, v5.10.50, v5.10.49, v5.13, v5.10.46, v5.10.43, v5.10.42, v5.10.41, v5.10.40, v5.10.39, v5.4.119, v5.10.36, v5.10.35, v5.10.34, v5.4.116, v5.10.33, v5.12, v5.10.32, v5.10.31, v5.10.30, v5.10.27, v5.10.26, v5.10.25, v5.10.24, v5.10.23, v5.10.22, v5.10.21, v5.10.20, v5.10.19, v5.4.101 |
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#
cdd38c5f |
| 24-Feb-2021 |
Stefan Schmidt <stefan@datenfreihafen.org> |
Merge remote-tracking branch 'net/master'
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Revision tags: v5.10.18 |
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#
cbecf716 |
| 22-Feb-2021 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge branch 'next' into for-linus
Prepare input updates for 5.12 merge window.
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#
415e915f |
| 22-Feb-2021 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge tag 'v5.11' into next
Merge with mainline to get latest APIs and device tree bindings.
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Revision tags: v5.10.17, v5.11, v5.10.16, v5.10.15, v5.10.14 |
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#
9d4d8572 |
| 02-Feb-2021 |
Russell King <rmk+kernel@armlinux.org.uk> |
Merge tag 'amba-make-remove-return-void' of https://git.pengutronix.de/git/ukl/linux into devel-stable
Tag for adaptions to struct amba_driver::remove changing prototype
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#
715a1284 |
| 15-Jan-2021 |
Tony Lindgren <tony@atomide.com> |
Merge branch 'cpuidle-fix' into fixes
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#
d263dfa7 |
| 15-Jan-2021 |
Joonas Lahtinen <joonas.lahtinen@linux.intel.com> |
Merge drm/drm-next into drm-intel-gt-next
Backmerging to get a common base for merging topic branches between drm-intel-next and drm-intel-gt-next.
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@l
Merge drm/drm-next into drm-intel-gt-next
Backmerging to get a common base for merging topic branches between drm-intel-next and drm-intel-gt-next.
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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#
10205618 |
| 08-Jan-2021 |
Rodrigo Vivi <rodrigo.vivi@intel.com> |
Merge drm/drm-next into drm-intel-next
sync-up to not fall too much behind.
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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#
6dcb8bf9 |
| 07-Jan-2021 |
Takashi Iwai <tiwai@suse.de> |
Merge branch 'for-linus' into for-next
Back-merge of 5.11-devel branch for syncing the result changes.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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#
7b622755 |
| 07-Jan-2021 |
Takashi Iwai <tiwai@suse.de> |
Merge tag 'asoc-fix-v5.11-rc2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v5.11
A collection of mostly driver specific fixes, plus a maintainers
Merge tag 'asoc-fix-v5.11-rc2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v5.11
A collection of mostly driver specific fixes, plus a maintainership update for TI and a fix for DAPM driver removal paths.
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#
2313f470 |
| 07-Jan-2021 |
Maarten Lankhorst <maarten.lankhorst@linux.intel.com> |
Merge drm/drm-next into drm-misc-next
Staying in sync to drm-next, and to be able to pull ttm fixes.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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#
8db90aa3 |
| 28-Dec-2020 |
Mark Brown <broonie@kernel.org> |
Merge tag 'v5.11-rc1' into spi-5.11
Linux 5.11-rc1
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#
2ae6f64c |
| 28-Dec-2020 |
Mark Brown <broonie@kernel.org> |
Merge tag 'v5.11-rc1' into regulator-5.11
Linux 5.11-rc1
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#
f81325a0 |
| 28-Dec-2020 |
Mark Brown <broonie@kernel.org> |
Merge tag 'v5.11-rc1' into asoc-5.11
Linux 5.11-rc1
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#
281a94b0 |
| 17-Dec-2020 |
Arnaldo Carvalho de Melo <acme@redhat.com> |
Merge remote-tracking branch 'torvalds/master' into perf/core
To pick up fixes and check what UAPI headers need to be synched.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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#
54d79483 |
| 14-Dec-2020 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'x86_mm_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm update from Borislav Petkov: "A single improvement to check ident_pud_init()'s return value (Arvind
Merge tag 'x86_mm_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm update from Borislav Petkov: "A single improvement to check ident_pud_init()'s return value (Arvind Sankar)"
* tag 'x86_mm_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm/ident_map: Check for errors from ident_pud_init()
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Revision tags: v5.10, v5.8.17 |
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1fcd0091 |
| 27-Oct-2020 |
Arvind Sankar <nivedita@alum.mit.edu> |
x86/mm/ident_map: Check for errors from ident_pud_init()
Commit
ea3b5e60ce80 ("x86/mm/ident_map: Add 5-level paging support")
added ident_p4d_init() to support 5-level paging, but this function
x86/mm/ident_map: Check for errors from ident_pud_init()
Commit
ea3b5e60ce80 ("x86/mm/ident_map: Add 5-level paging support")
added ident_p4d_init() to support 5-level paging, but this function doesn't check and return errors from ident_pud_init().
For example, the decompressor stub uses this code to create an identity mapping. If it runs out of pages while trying to allocate a PMD pagetable, the error will be currently ignored.
Fix this to propagate errors.
[ bp: Space out statements for better readability. ]
Fixes: ea3b5e60ce80 ("x86/mm/ident_map: Add 5-level paging support") Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Joerg Roedel <jroedel@suse.de> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Link: https://lkml.kernel.org/r/20201027230648.1885111-1-nivedita@alum.mit.edu
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