vendors instead of proliferating home-grown solutions for technologies
which are pretty similar
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Merge tag 'x86_cc_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 confidential computing updates from Borislav Petkov:
- Add shared confidential computing code which will be used by both
vendors instead of proliferating home-grown solutions for
technologies (SEV/SNP and TDX) which are pretty similar
* tag 'x86_cc_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm/cpa: Generalize __set_memory_enc_pgtable()
x86/coco: Add API to handle encryption mask
x86/coco: Explicitly declare type of confidential computing platform
x86/cc: Move arch/x86/{kernel/cc_platform.c => coco/core.c}
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Merge tag 'x86_sgx_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 SGX updates from Borislav Petkov:
- A couple of fixes and improvements to the SGX selftests
* tag 'x86_sgx_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
selftests/sgx: Treat CC as one argument
selftests/x86: Add validity check and allow field splitting
selftests/sgx: Remove extra newlines in test output
selftests/sgx: Ensure enclave data available during debug print
selftests/sgx: Do not attempt enclave build without valid enclave
selftests/sgx: Fix NULL-pointer-dereference upon early test failure
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Merge tag 'x86_sev_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 SEV fix from Borislav Petkov:
- Add a missing function section annotation
* tag 'x86_sev_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/head64: Add missing __head annotation to sme_postprocess_startup()
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Merge tag 'x86_paravirt_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 paravirt improvement from Borislav Petkov:
- Shorten CALL insns to pvops by a byte by using rip-relative
addressing
* tag 'x86_paravirt_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/paravirt: Use %rip-relative addressing in hook calls
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Merge tag 'x86_build_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 Kconfig fix from Borislav Petkov:
- Correct Kconfig symbol visibility on x86
* tag 'x86_build_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/Kconfig: Select ARCH_SELECT_MEMORY_MODEL only if FLATMEM and SPARSEMEM are possible
Consumer examples in the bindings of resource providers are trivial,
useless and duplication of code. Remove the example code for consumer
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220316130858.93455-1-krzysztof.kozlowski@canonical.com
AMX, other misc insns.
- Update VMware-specific MAINTAINERS entries
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Merge tag 'x86_misc_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc x86 updates from Borislav Petkov:
- Add support for a couple new insn sets to the insn decoder:
AVX512-FP16, AMX, other misc insns.
- Update VMware-specific MAINTAINERS entries
* tag 'x86_misc_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
MAINTAINERS: Mark VMware mailing list entries as email aliases
MAINTAINERS: Add Zack as maintainer of vmmouse driver
MAINTAINERS: Update maintainers for paravirt ops and VMware hypervisor interface
x86/insn: Add AVX512-FP16 instructions to the x86 instruction decoder
perf/tests: Add AVX512-FP16 instructions to x86 instruction decoder test
x86/insn: Add misc instructions to x86 instruction decoder
perf/tests: Add misc instructions to the x86 instruction decoder test
x86/insn: Add AMX instructions to the x86 instruction decoder
perf/tests: Add AMX instructions to x86 instruction decoder test
No reason to have separate startio_lock and endio_lock given endio_lock
could be used during submission anyway.
This change leaves the dm_io struct weighing in at 256 bytes (down
from 272 bytes, so saves a cacheline).
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Add the PPIN number to sysfs so that sockets can be identified when
replacement is needed
- Minor fixes and cleanups
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Merge tag 'x86_cpu_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpu feature updates from Borislav Petkov:
- Merge the AMD and Intel PPIN code into a shared one by both vendors.
Add the PPIN number to sysfs so that sockets can be identified when
replacement is needed
- Minor fixes and cleanups
* tag 'x86_cpu_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpu: Clear SME feature flag when not in use
x86/cpufeatures: Put the AMX macros in the word 18 block
topology/sysfs: Add PPIN in sysfs under cpu topology
topology/sysfs: Add format parameter to macro defining "show" functions for proc
x86/cpu: Read/save PPIN MSR during initialization
x86/cpu: X86_FEATURE_INTEL_PPIN finally has a CPUID bit
x86/cpu: Merge Intel and AMD ppin_init() functions
x86/CPU/AMD: Use default_groups in kobj_type
- The usual amount of improvements and fixes
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Merge tag 'edac_updates_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull EDAC updates from Borislav Petkov:
- Add support for newer AMD family 0x19, models 0x10-... CPUs to
amd64_edac
- The usual amount of improvements and fixes
* tag 'edac_updates_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC/altera: Add SDRAM ECC check for U-Boot
EDAC/amd64: Add new register offset support and related changes
EDAC/amd64: Set memory type per DIMM
EDAC/mc: Remove unnecessary cast to char * in edac_align_ptr()
EDAC: Use default_groups in kobj_type
EDAC: Use proper list of struct attribute for attributes
- amba bus cleanups
- conversion to use reserve_initrd_mem()
- remove -nostdlib from vdso link
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Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:
- amba bus cleanups
- conversion to use reserve_initrd_mem()
- remove -nostdlib from vdso link
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 9181/1: vdso: remove -nostdlib compiler flag
ARM: 9175/1: Convert to reserve_initrd_mem()
ARM: 9174/1: amba: Move EXPORT_SYMBOL() closer to definition
ARM: 9173/1: amba: kill amba_find_match()
ARM: 9172/1: amba: Cleanup amba pclk operation
- Support for including MTE tags in ELF coredumps
- Instruction encoder updates, including fixes to 64-bit immediate
generation and support for the LSE atomic instructions
- Improvements to kselftests for MTE and fpsimd
- Symbol aliasing and linker script cleanups
- Reduce instruction cache maintenance performed for user mappings
created using contiguous PTEs
- Support for the new "asymmetric" MTE mode, where stores are checked
asynchronously but loads are checked synchronously
- Support for the latest pointer authentication algorithm ("QARMA3")
- Support for the DDR PMU present in the Marvell CN10K platform
- Support for the CPU PMU present in the Apple M1 platform
- Use the RNDR instruction for arch_get_random_{int,long}()
- Update our copy of the Arm optimised string routines for str{n}cmp()
- Fix signal frame generation for CPUs which have foolishly elected to
avoid building in support for the fpsimd instructions
- Workaround for Marvell GICv3 erratum #38545
- Clarification to our Documentation (booting reqs. and MTE prctl())
- Miscellanous cleanups and minor fixes
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
- Support for including MTE tags in ELF coredumps
- Instruction encoder updates, including fixes to 64-bit immediate
generation and support for the LSE atomic instructions
- Improvements to kselftests for MTE and fpsimd
- Symbol aliasing and linker script cleanups
- Reduce instruction cache maintenance performed for user mappings
created using contiguous PTEs
- Support for the new "asymmetric" MTE mode, where stores are checked
asynchronously but loads are checked synchronously
- Support for the latest pointer authentication algorithm ("QARMA3")
- Support for the DDR PMU present in the Marvell CN10K platform
- Support for the CPU PMU present in the Apple M1 platform
- Use the RNDR instruction for arch_get_random_{int,long}()
- Update our copy of the Arm optimised string routines for str{n}cmp()
- Fix signal frame generation for CPUs which have foolishly elected to
avoid building in support for the fpsimd instructions
- Workaround for Marvell GICv3 erratum #38545
- Clarification to our Documentation (booting reqs. and MTE prctl())
- Miscellanous cleanups and minor fixes
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (90 commits)
docs: sysfs-devices-system-cpu: document "asymm" value for mte_tcf_preferred
arm64/mte: Remove asymmetric mode from the prctl() interface
arm64: Add cavium_erratum_23154_cpus missing sentinel
perf/marvell: Fix !CONFIG_OF build for CN10K DDR PMU driver
arm64: mm: Drop 'const' from conditional arm64_dma_phys_limit definition
Documentation: vmcoreinfo: Fix htmldocs warning
kasan: fix a missing header include of static_keys.h
drivers/perf: Add Apple icestorm/firestorm CPU PMU driver
drivers/perf: arm_pmu: Handle 47 bit counters
arm64: perf: Consistently make all event numbers as 16-bits
arm64: perf: Expose some Armv9 common events under sysfs
perf/marvell: cn10k DDR perf event core ownership
perf/marvell: cn10k DDR perfmon event overflow handling
perf/marvell: CN10k DDR performance monitor support
dt-bindings: perf: marvell: cn10k ddr performance monitor
arm64: clean up tools Makefile
perf/arm-cmn: Update watchpoint format
perf/arm-cmn: Hide XP PUB events for CMN-600
arm64: drop unused includes of <linux/personality.h>
arm64: Do not defer reserve_crashkernel() for platforms with no DMA memory zones
...
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Merge tag 'tpmdd-next-v5.18-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd
Pull tpm updates from Jarkko Sakkinen:
"In order to split the work a bit we've aligned with David Howells more
or less that I take more hardware/firmware aligned keyring patches,
and he takes care more of the framework aligned patches.
For TPM the patches worth of highlighting are the fixes for
refcounting provided by Lino Sanfilippo and James Bottomley.
Eric B. has done a bunch obvious (but important) fixes but there's one
a bit controversial: removal of asym_tpm. It was added in 2018 when
TPM1 was already declared as insecure and world had moved on to TPM2.
I don't know how this has passed all the filters but I did not have a
chance to see the patches when they were out. I simply cannot commit
to maintaining this because it was from all angles just wrong to take
it in the first place to the mainline kernel. Nobody should use this
module really for anything.
Finally, there is a new keyring '.machine' to hold MOK keys ('Machine
Owner Keys'). In the mok side MokListTrustedRT UEFI variable can be
set, from which kernel knows that MOK keys are kernel trusted keys and
they are populated to the machine keyring. This keyring linked to the
secondary trusted keyring, which means that can be used like any
kernel trusted keys. This keyring of course can be used to hold other
MOK'ish keys in other platforms in future"
* tag 'tpmdd-next-v5.18-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd: (24 commits)
tpm: use try_get_ops() in tpm-space.c
KEYS: asymmetric: properly validate hash_algo and encoding
KEYS: asymmetric: enforce that sig algo matches key algo
KEYS: remove support for asym_tpm keys
tpm: fix reference counting for struct tpm_chip
integrity: Only use machine keyring when uefi_check_trust_mok_keys is true
integrity: Trust MOK keys if MokListTrustedRT found
efi/mokvar: move up init order
KEYS: Introduce link restriction for machine keys
KEYS: store reference to machine keyring
integrity: add new keyring handler for mok keys
integrity: Introduce a Linux keyring called machine
integrity: Fix warning about missing prototypes
KEYS: trusted: Avoid calling null function trusted_key_exit
KEYS: trusted: Fix trusted key backends when building as module
tpm: xen-tpmfront: Use struct_size() helper
KEYS: x509: remove dead code that set ->unsupported_sig
KEYS: x509: remove never-set ->unsupported_key flag
KEYS: x509: remove unused fields
KEYS: x509: clearly distinguish between key and signature algorithms
...
if need_lock is true but folio_trylock fails, we should return false
instead of NULL to match the return value type exactly. No functional
change intended.
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
If the VM_HUGEPAGE flag is set, attempt to allocate PMD-sized folios
during readahead, even if we have no history of readahead being
successful.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
do_page_cache_ra() was being exposed for the benefit of
do_sync_mmap_readahead(). Switch it over to page_cache_ra_order()
partly because it's a better interface but mostly for the benefit of
the next patch.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
When we have the opportunity to use PMDs to map a file, we want to follow
the same rules as DAX.
Signed-off-by: William Kucharski <william.kucharski@oracle.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Allocate large folios in the readahead code when the filesystem supports
them and it seems worth doing. The heuristic for choosing which folio
sizes will surely need some tuning, but this aggressive ramp-up has been
good for testing.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
For code which has not yet been converted from THP to folios, use the
compound size of the page instead of assuming PTE or PMD size.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Some parts of the VM still depend on THP to handle large folios
correctly. Until those are fixed, prevent creating large folios
if THP are disabled.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
These counters only exist if CONFIG_READ_ONLY_THP_FOR_FS is defined,
but we do not need to warn if the filesystem natively supports large
folios.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
We return -EEXIST if there are any non-shadow entries in the page
cache in the range covered by the folio. If there are multiple
shadow entries in the range, we set *shadowp to one of them (currently
the one at the highest index). If that turns out to be the wrong
answer, we can implement something more complex. This is mostly
modelled after the equivalent function in the shmem code.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
This function already required a head page to be passed, so this
just adds type-safety and removes a few implicit calls to
compound_head().
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
We always write out an entire folio at once. This conversion removes
a few calls to compound_head() and gets the NR_VMSCAN_WRITE statistic
right when writing out a large folio.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
This function only has one caller, and it already has a folio. This
removes a number of calls to compound_head().
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
The statistics we gather should count the number of pages, not the
number of folios. The logic in this function is somewhat convoluted,
but even if we split the folio, I think the accounting is now correct.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
A large folio which is smaller than a PMD does not need to do the extra
work in try_to_unmap() of trying to split a PMD entry.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
We have to allocate memory in order to split a file-backed folio, so
it's not a good idea to split them in the memory freeing path. It also
doesn't work for XFS because pages have an extra reference count from
page_has_private() and split_huge_page() expects that reference to have
already been removed. Unfortunately, we still have to split shmem THPs
because we can't handle swapping out an entire THP yet.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
The rmap walking functions do not modify the rmap_walk_control, and
page_idle_clear_pte_refs() takes advantage of that to move construction
of the rmap_walk_control to compile time. This lets us remove an
unclean cast.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Add back page_lock_anon_vma_read() as a wrapper. This saves a few calls
to compound_head(). If any callers were passing a tail page before,
this would have failed to lock the anon VMA as page->mapping is not
valid for tail pages.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Move the PageTail check earlier so we can avoid even taking the folio
lock on tail pages. Otherwise, this is a straightforward use of
folios throughout.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Convert the callers to pass a folio and the try_to_migrate_one()
worker to use a folio throughout. Fixes an assumption that a
folio must be <= PMD size.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Convert split_huge_pmd_address() at the same time since it only passes
the folio through, and its two callers already have a folio on hand.
Removes numerous calls to compound_head() and removes an assumption
that a page cannot be larger than a PMD.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Both its callers pass a page which was previously on an LRU list,
so were passing a folio by definition. Use the type system to enforce
that and remove a few calls to compound_head().
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Convert mlock_page() into mlock_folio() and convert the callers. Keep
mlock_vma_page() as a wrapper.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
folio_mkclean() already passes down a head page, so convert it
back to a folio.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
The PG_idle and PG_young bits are ignored if they're set on tail
pages, so ensure we're passing a folio around.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
