ee3392ed16
448 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
70756b49be |
It has been a moderately calm cycle for documentation; the significant
changes include: - Some significant additions to the memory-management documentation - Some improvements to navigation in the HTML-rendered docs - More Spanish and Chinese translations ...and the usual set of typo fixes and such. -----BEGIN PGP SIGNATURE----- iQFDBAABCAAtFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAmPzkQUPHGNvcmJldEBs d24ubmV0AAoJEBdDWhNsDH5YC0QH/09u10xV3N+RuveNE/tArVxKcQi7JZd/xugQ toSXygh64WY10lzwi7Ms1bHZzpPYB0fOrqTGNqNQuhrVTjQzaZB0BBJqm8lwt2w/ S/Z5wj+IicJTmQ7+0C2Hc/dcK5SCPfY3CgwqOUVdr3dEm1oU+4QaBy31fuIJJ0Hx NdbXBco8BZqJX9P67jwp9vbrFrSGBjPI0U4HNHVjrWlcBy8JT0aAnf0fyWFy3orA T86EzmEw8drA1mXsHa5pmVwuHDx2X+D+eRurG9llCBrlIG9EDSmnalY4BeGqR4LS oDrEH6M91I5+9iWoJ0rBheD8rPclXO2HpjXLApXzTjrORgEYZsM= =MCdX -----END PGP SIGNATURE----- Merge tag 'docs-6.3' of git://git.lwn.net/linux Pull documentation updates from Jonathan Corbet: "It has been a moderately calm cycle for documentation; the significant changes include: - Some significant additions to the memory-management documentation - Some improvements to navigation in the HTML-rendered docs - More Spanish and Chinese translations ... and the usual set of typo fixes and such" * tag 'docs-6.3' of git://git.lwn.net/linux: (68 commits) Documentation/watchdog/hpwdt: Fix Format Documentation/watchdog/hpwdt: Fix Reference Documentation: core-api: padata: correct spelling docs/mm: Physical Memory: correct spelling in reference to CONFIG_PAGE_EXTENSION docs: Use HTML comments for the kernel-toc SPDX line docs: Add more information to the HTML sidebar Documentation: KVM: Update AMD memory encryption link printk: Document that CONFIG_BOOT_PRINTK_DELAY required for boot_delay= Documentation: userspace-api: correct spelling Documentation: sparc: correct spelling Documentation: driver-api: correct spelling Documentation: admin-guide: correct spelling docs: add workload-tracing document to admin-guide docs/admin-guide/mm: remove useless markup docs/mm: remove useless markup docs/mm: Physical Memory: remove useless markup docs/sp_SP: Add process magic-number translation docs: ftrace: always use canonical ftrace path Doc/damon: fix the data path error dma-buf: Add "dma-buf" to title of documentation ... |
||
|
Linus Torvalds
|
aa8c3db40a |
- Add support for a new AMD feature called slow memory bandwidth
allocation. Its goal is to control resource allocation in external slow memory which is connected to the machine like for example through CXL devices, accelerators etc -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmPzmf4ACgkQEsHwGGHe VUppKg//Tq+lHaMYO8aTvk4jgqbR9RVXJwPbtEOp2C0kSLs5QxBms/o21IXnxJ07 tdbIGOrfJGlbzSWP8ywysRRQwpKlwltWUVAjMOFqEfzEURLL042qtHZ8nxGKSGrc IZFJLNTMyx1Zyjc7e9A/hANCOoQFoPHT8zHf1CNNo1LtzgHzNZG6kggLHh5tRKSz Xi7wFbYBtmttsyIA/iAQjYAU0O9MnmdnktUb7XdPSFtTIZ3Nyw90We4gwYueEPzD S/rQHKr8V7ROZMHXQ/BWpVWdcxGoHD8acUSVq8j20KW3W9/H8KL9TRVakvnf0aRW g0efxKXdTjTRO49GgD7FUL8x1JdAOXeZwQYDzKPqW/GRESRdpOvsaMwcLDCEpIXK PmEOVReklokJF0btFqaVYkY6wGE2KLKmp97g/RffuHdIeIomwI9lTpy9kyQsKakc yJ+VsE85BlBEVkHNt49qFClO1L98G3IgZTTt6//EGv0EJl8pELfsddsbjG5uXun+ xFhr2i7gllQcV4B4HSFFdYRBLvZYnTfKlNR7Hs9pRJT7V28Jv2GURiCHBm4sRv9O k3FX7sxytH2syBBwU1NNrMRMo+KgjVZurJwiHpTRbb39K6uCgLk/wbXfWh2SovW1 BRItz2T6LFu4bo6WIhakx31pNmH94P8vC0acO8LHECVji7qvXFM= =8hmj -----END PGP SIGNATURE----- Merge tag 'x86_cache_for_v6.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 resource control updates from Borislav Petkov: - Add support for a new AMD feature called slow memory bandwidth allocation. Its goal is to control resource allocation in external slow memory which is connected to the machine like for example through CXL devices, accelerators etc * tag 'x86_cache_for_v6.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/resctrl: Fix a silly -Wunused-but-set-variable warning Documentation/x86: Update resctrl.rst for new features x86/resctrl: Add interface to write mbm_local_bytes_config x86/resctrl: Add interface to write mbm_total_bytes_config x86/resctrl: Add interface to read mbm_local_bytes_config x86/resctrl: Add interface to read mbm_total_bytes_config x86/resctrl: Support monitor configuration x86/resctrl: Add __init attribute to rdt_get_mon_l3_config() x86/resctrl: Detect and configure Slow Memory Bandwidth Allocation x86/resctrl: Include new features in command line options x86/cpufeatures: Add Bandwidth Monitoring Event Configuration feature flag x86/resctrl: Add a new resource type RDT_RESOURCE_SMBA x86/cpufeatures: Add Slow Memory Bandwidth Allocation feature flag x86/resctrl: Replace smp_call_function_many() with on_each_cpu_mask() |
||
Ross Zwisler
|
2abfcd293b |
docs: ftrace: always use canonical ftrace path
The canonical location for the tracefs filesystem is at /sys/kernel/tracing. But, from Documentation/trace/ftrace.rst: Before 4.1, all ftrace tracing control files were within the debugfs file system, which is typically located at /sys/kernel/debug/tracing. For backward compatibility, when mounting the debugfs file system, the tracefs file system will be automatically mounted at: /sys/kernel/debug/tracing Many parts of Documentation still reference this older debugfs path, so let's update them to avoid confusion. Signed-off-by: Ross Zwisler <zwisler@google.com> Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org> Link: https://lore.kernel.org/r/20230125213251.2013791-1-zwisler@google.com Signed-off-by: Jonathan Corbet <corbet@lwn.net> |
||
Babu Moger
|
0a363fb23e |
Documentation/x86: Update resctrl.rst for new features
Update the documentation for the new features: 1. Slow Memory Bandwidth allocation (SMBA). With this feature, the QOS enforcement policies can be applied to the external slow memory connected to the host. QOS enforcement is accomplished by assigning a Class Of Service (COS) to a processor and specifying allocations or limits for that COS for each resource to be allocated. 2. Bandwidth Monitoring Event Configuration (BMEC). The bandwidth monitoring events mbm_total_bytes and mbm_local_bytes are set to count all the total and local reads/writes respectively. With the introduction of slow memory, the two counters are not enough to count all the different types of memory events. With the feature BMEC, the users have the option to configure mbm_total_bytes and mbm_local_bytes to count the specific type of events. Also add configuration instructions with examples. Signed-off-by: Babu Moger <babu.moger@amd.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Reviewed-by: Reinette Chatre <reinette.chatre@intel.com> Link: https://lore.kernel.org/r/20230113152039.770054-14-babu.moger@amd.com |
||
Nikunj A Dadhania
|
8c29f01654 |
x86/sev: Add SEV-SNP guest feature negotiation support
The hypervisor can enable various new features (SEV_FEATURES[1:63]) and start a
SNP guest. Some of these features need guest side implementation. If any of
these features are enabled without it, the behavior of the SNP guest will be
undefined. It may fail booting in a non-obvious way making it difficult to
debug.
Instead of allowing the guest to continue and have it fail randomly later,
detect this early and fail gracefully.
The SEV_STATUS MSR indicates features which the hypervisor has enabled. While
booting, SNP guests should ascertain that all the enabled features have guest
side implementation. In case a feature is not implemented in the guest, the
guest terminates booting with GHCB protocol Non-Automatic Exit(NAE) termination
request event, see "SEV-ES Guest-Hypervisor Communication Block Standardization"
document (currently at https://developer.amd.com/wp-content/resources/56421.pdf),
section "Termination Request".
Populate SW_EXITINFO2 with mask of unsupported features that the hypervisor can
easily report to the user.
More details in the AMD64 APM Vol 2, Section "SEV_STATUS MSR".
[ bp:
- Massage.
- Move snp_check_features() call to C code.
Note: the CC:stable@ aspect here is to be able to protect older, stable
kernels when running on newer hypervisors. Or not "running" but fail
reliably and in a well-defined manner instead of randomly. ]
Fixes:
|
||
Wang Yong
|
6a5eb77947 |
Documentation: x86: fix typo in x86_64/mm.rst
change "64Gb" to "64GB". Signed-off-by: Wang Yong <yongw.kernel@gmail.com> Link: https://lore.kernel.org/r/20221228100141.382325-1-yongw.kernel@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net> |
||
|
Linus Torvalds
|
a89ef2aa55 |
Add TDX guest attestation infrastructure and driver
-----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEV76QKkVc4xCGURexaDWVMHDJkrAFAmOXYmwACgkQaDWVMHDJ krD8hg/+J0hUTfljmlCctwGZyqVR3Y2E722wL9oTvbgYiUAtFrARzfPF0WNwvHi5 Ywvod5hQ4unPoluthdVAD/uJqcPVhjIZ7CvNTGrS8J7ED5x5ydGLNWAL3Rn+9s6O xkz/DsV4zl+cPQ60XLsO+3Mc6RhwVs9DUthpUovl22epmgmRPCovkHWkvQsZajJq ceF/78ThfrkG4dDouaIXi1gsmKLLzU4KdHeBATMg0bgPQXFJZSGBCLaeJXWmLapq 7N3SznUqDMn4Plr/IuP4XuMA6VTVojrakCcBmw5SGVqhkVWGM1/FMg7jHSQS7Z5V 5uG7CkhTBqh17v9xKwDMPh34D51TLtNifA7jbecyL5155czFkj7BoSwEFINU/wCz agUO9NvK9j1chUnA2UGqGQigM3nWGZHMwaQjfgBWyq5gqF8HURUUrjx6XuunOfmB 1byyrDu0g48u/zaQ/RpNfewz1ZY+WylDPcqOhYaVWF1PYThStML/VMBKpdsl1Ovw nytUdQsaBIjFHQdB+snizaF93+/0FG+FTGAlDnHYmey/8plL2LYuzrcDnDYnGEXa tN3HFd2lAi4JBLmvmgF39gH+BLXuKTLweIhwTXZTn91cfire3yxiXAnLd0tuptMP aXFddxKMdMpxTqzy2X+8gJjqCr2lZ9gZkxaPsWwrBM+xrJf0p2w= =JGnq -----END PGP SIGNATURE----- Merge tag 'x86_tdx_for_6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 tdx updates from Dave Hansen: "This includes a single chunk of new functionality for TDX guests which allows them to talk to the trusted TDX module software and obtain an attestation report. This report can then be used to prove the trustworthiness of the guest to a third party and get access to things like storage encryption keys" * tag 'x86_tdx_for_6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: selftests/tdx: Test TDX attestation GetReport support virt: Add TDX guest driver x86/tdx: Add a wrapper to get TDREPORT0 from the TDX Module |
||
Kuppuswamy Sathyanarayanan
|
6c8c1406a6 |
virt: Add TDX guest driver
TDX guest driver exposes IOCTL interfaces to service TDX guest user-specific requests. Currently, it is only used to allow the user to get the TDREPORT to support TDX attestation. Details about the TDX attestation process are documented in Documentation/x86/tdx.rst, and the IOCTL details are documented in Documentation/virt/coco/tdx-guest.rst. Operations like getting TDREPORT involves sending a blob of data as input and getting another blob of data as output. It was considered to use a sysfs interface for this, but it doesn't fit well into the standard sysfs model for configuring values. It would be possible to do read/write on files, but it would need multiple file descriptors, which would be somewhat messy. IOCTLs seem to be the best fitting and simplest model for this use case. The AMD sev-guest driver also uses the IOCTL interface to support attestation. [Bagas Sanjaya: Ack is for documentation portion] Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com> Reviewed-by: Tony Luck <tony.luck@intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Kai Huang <kai.huang@intel.com> Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Wander Lairson Costa <wander@redhat.com> Link: https://lore.kernel.org/all/20221116223820.819090-3-sathyanarayanan.kuppuswamy%40linux.intel.com |
||
Ahmad Fatoum
|
a27e292b8a |
Documentation/x86/boot: Reserve type_of_loader=13 for barebox
barebox[1], a bootloader for mostly ARM and MIPS embedded systems, can also be built as EFI payload for x86[2] to provide redundant power-fail safe, watchdog-supervised boot up. Since its v2015.09.0 release, it has been booting Linux on x86 with type_of_loader=0xff[3]. Reserve 13, the next free id, so that can be used instead in the future. [1]: https://www.barebox.org/ [2]: https://www.barebox.org/doc/latest/boards/efi.html [3]: https://elixir.bootlin.com/barebox/v2022.09.0/source/common/efi/payload/image.c#L217 Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lore.kernel.org/r/20221002125752.3400831-1-a.fatoum@pengutronix.de |
||
|
Linus Torvalds
|
b5f0b11353 |
- Get rid of a single ksize() usage
- By popular demand, print the previous microcode revision an update was done over - Remove more code related to the now gone MICROCODE_OLD_INTERFACE - Document the problems stemming from microcode late loading -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmM8QL8ACgkQEsHwGGHe VUoDxw/9FA3rOAZD7N0PI/vspMUxEDQVYV60tfuuynao72HZv+tfJbRTXe42p3ZO B+kRPFud4lAOE1ykDHJ2A2OZzvthGfYlUnMyvk1IvK/gOwkkiSH4c6sVSrOYWtl7 uoIN/3J83BMZoWNOKqrg1OOzotzkTyeucPXdWF+sRkfVzBIgbDqtplbFFCP4abPK WxatY2hkTfBCiN92OSOLaMGg0POpmycy+6roR2Qr5rWrC7nfREVNbKdOyEykZsfV U2gPm0A953sZ3Ye6waFib+qjJdyR7zBQRCJVEGOB6g8BlNwqGv/TY7NIUWSVFT9Y qcAnD3hI0g0UTYdToBUvYEpfD8zC9Wg3tZEpZSBRKh3AR2+Xt44VKQFO4L9uIt6g hWFMBLsFiYnBmKW3arNLQcdamE34GRhwUfXm0OjHTvTWb3aFO1I9+NBCaHp19KVy HD13wGSyj5V9SAVD0ztRFut4ZESejDyYBw9joB2IsjkY2IJmAAsRFgV0KXqUvQLX TX13hnhm894UfQ+4KCXnA0UeEDoXhwAbYFxR89yGeOxoGe1oaPXr9C1/r88YLq0n ekjIVZ3G97PIxmayj3cv9YrRIrrJi4PWF1Raey6go3Ma+rNBRnya5UF6Noch1lHh HeF7t84BZ5Ub6GweWYaMHQZCA+wMCZMYYuCMNzN7b54yRtQuvCc= =lWDD -----END PGP SIGNATURE----- Merge tag 'x86_microcode_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x75 microcode loader updates from Borislav Petkov: - Get rid of a single ksize() usage - By popular demand, print the previous microcode revision an update was done over - Remove more code related to the now gone MICROCODE_OLD_INTERFACE - Document the problems stemming from microcode late loading * tag 'x86_microcode_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/microcode/AMD: Track patch allocation size explicitly x86/microcode: Print previous version of microcode after reload x86/microcode: Remove ->request_microcode_user() x86/microcode: Document the whole late loading problem |
||
Tuo Cao
|
a356c06699 |
docs: x86: replace do_IRQ int the entry_64.rst with common_interrupt()
do_IRQ has been replaced by common_interrupt in commit
|
||
Ashok Raj
|
3ecf671f1d |
x86/microcode: Document the whole late loading problem
Commit
|
||
|
Linus Torvalds
|
c993e07be0 |
dma-mapping updates
- convert arm32 to the common dma-direct code (Arnd Bergmann, Robin Murphy,
Christoph Hellwig)
- restructure the PCIe peer to peer mapping support (Logan Gunthorpe)
- allow the IOMMU code to communicate an optional DMA mapping length
and use that in scsi and libata (John Garry)
- split the global swiotlb lock (Tianyu Lan)
- various fixes and cleanup (Chao Gao, Dan Carpenter, Dongli Zhang,
Lukas Bulwahn, Robin Murphy)
-----BEGIN PGP SIGNATURE-----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=Bv19
-----END PGP SIGNATURE-----
Merge tag 'dma-mapping-5.20-2022-08-06' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping updates from Christoph Hellwig:
- convert arm32 to the common dma-direct code (Arnd Bergmann, Robin
Murphy, Christoph Hellwig)
- restructure the PCIe peer to peer mapping support (Logan Gunthorpe)
- allow the IOMMU code to communicate an optional DMA mapping length
and use that in scsi and libata (John Garry)
- split the global swiotlb lock (Tianyu Lan)
- various fixes and cleanup (Chao Gao, Dan Carpenter, Dongli Zhang,
Lukas Bulwahn, Robin Murphy)
* tag 'dma-mapping-5.20-2022-08-06' of git://git.infradead.org/users/hch/dma-mapping: (45 commits)
swiotlb: fix passing local variable to debugfs_create_ulong()
dma-mapping: reformat comment to suppress htmldoc warning
PCI/P2PDMA: Remove pci_p2pdma_[un]map_sg()
RDMA/rw: drop pci_p2pdma_[un]map_sg()
RDMA/core: introduce ib_dma_pci_p2p_dma_supported()
nvme-pci: convert to using dma_map_sgtable()
nvme-pci: check DMA ops when indicating support for PCI P2PDMA
iommu/dma: support PCI P2PDMA pages in dma-iommu map_sg
iommu: Explicitly skip bus address marked segments in __iommu_map_sg()
dma-mapping: add flags to dma_map_ops to indicate PCI P2PDMA support
dma-direct: support PCI P2PDMA pages in dma-direct map_sg
dma-mapping: allow EREMOTEIO return code for P2PDMA transfers
PCI/P2PDMA: Introduce helpers for dma_map_sg implementations
PCI/P2PDMA: Attempt to set map_type if it has not been set
lib/scatterlist: add flag for indicating P2PDMA segments in an SGL
swiotlb: clean up some coding style and minor issues
dma-mapping: update comment after dmabounce removal
scsi: sd: Add a comment about limiting max_sectors to shost optimal limit
ata: libata-scsi: cap ata_device->max_sectors according to shost->max_sectors
scsi: scsi_transport_sas: cap shost opt_sectors according to DMA optimal limit
...
|
||
|
Linus Torvalds
|
9e2f402336 |
- SGX2 ISA support which makes enclave memory management much more
dynamic. For instance, enclaves can now change enclave page
permissions on the fly.
- Removal of an unused structure member
-----BEGIN PGP SIGNATURE-----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=Y7YA
-----END PGP SIGNATURE-----
Merge tag 'x86_sgx_for_v6.0-2022-08-03.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 SGX updates from Dave Hansen:
"A set of x86/sgx changes focused on implementing the "SGX2" features,
plus a minor cleanup:
- SGX2 ISA support which makes enclave memory management much more
dynamic. For instance, enclaves can now change enclave page
permissions on the fly.
- Removal of an unused structure member"
* tag 'x86_sgx_for_v6.0-2022-08-03.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits)
x86/sgx: Drop 'page_index' from sgx_backing
selftests/sgx: Page removal stress test
selftests/sgx: Test reclaiming of untouched page
selftests/sgx: Test invalid access to removed enclave page
selftests/sgx: Test faulty enclave behavior
selftests/sgx: Test complete changing of page type flow
selftests/sgx: Introduce TCS initialization enclave operation
selftests/sgx: Introduce dynamic entry point
selftests/sgx: Test two different SGX2 EAUG flows
selftests/sgx: Add test for TCS page permission changes
selftests/sgx: Add test for EPCM permission changes
Documentation/x86: Introduce enclave runtime management section
x86/sgx: Free up EPC pages directly to support large page ranges
x86/sgx: Support complete page removal
x86/sgx: Support modifying SGX page type
x86/sgx: Tighten accessible memory range after enclave initialization
x86/sgx: Support adding of pages to an initialized enclave
x86/sgx: Support restricting of enclave page permissions
x86/sgx: Support VA page allocation without reclaiming
x86/sgx: Export sgx_encl_page_alloc()
...
|
||
|
Linus Torvalds
|
ab17c0cd37 |
EFI efivars sysfs interface removal
Remove the obsolete 'efivars' sysfs based interface to the EFI variable store, now that all users have moved to the efivarfs pseudo file system, which was created ~10 years ago to address some fundamental shortcomings in the sysfs based driver. Move the 'business logic' related to which EFI variables are important and may affect the boot flow from the efivars support layer into the efivarfs pseudo file system, so it is no longer exposed to other parts of the kernel. -----BEGIN PGP SIGNATURE----- iQGzBAABCgAdFiEE+9lifEBpyUIVN1cpw08iOZLZjyQFAmLhuYIACgkQw08iOZLZ jyRYYgwAwUvbFtBL+uOTB+jynOq1MkM1xrNSeEgzPyLhh7CXSa/e+48XqpQjCUxY 8HNqDvd4toiCeVKp25AO+FPrQBjT7NdyjnwGMP3DLkGCOSIrVqVJ/2OmbOY52Kzy z1qbF2+7ak1TUsGzMnJHVDB+baGnUlZ39DuR6IAWstM9tkH/QEnRJV+ejS4h7jdN XW42/M96mAYFfT4Q4gs1HJMPWLP22xoEbnb9SkOyFCB2tHDjrY94CqH8L7Ee1DgA 7sc2cAZ2mPlS8Rbs8NY8IA/LpN4tRu2EhbIxtmKMRgXA88aTKcsub9Tq9RXxzE/x BpkH77mGbSBSrntg0gskKCrYGyJaGS9EYnHVy5HPU8hJagK295NmO3c/trHTb90Z 1RZClYsIUbNXe06e9rdk8w8Ozn+7ABstxzLCvj2MThtTBnAbjU0kQ9VeD0xwMvOp EaF6D6tbEmHrZkGtKP2WEyOZm0tF2I3OP1U9LzjyTpvsIOINhqfVozlhTB6pU5YE kW9E59i+ =VVQ6 -----END PGP SIGNATURE----- Merge tag 'efi-efivars-removal-for-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi Pull efivars sysfs interface removal from Ard Biesheuvel: "Remove the obsolete 'efivars' sysfs based interface to the EFI variable store, now that all users have moved to the efivarfs pseudo file system, which was created ~10 years ago to address some fundamental shortcomings in the sysfs based driver. Move the 'business logic' related to which EFI variables are important and may affect the boot flow from the efivars support layer into the efivarfs pseudo file system, so it is no longer exposed to other parts of the kernel" * tag 'efi-efivars-removal-for-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi: efi: vars: Move efivar caching layer into efivarfs efi: vars: Switch to new wrapper layer efi: vars: Remove deprecated 'efivars' sysfs interface |
||
Mauro Carvalho Chehab
|
d6a21f2d73 |
objtool: update objtool.txt references
Changeset |
||
Reinette Chatre
|
629b5155d0 |
Documentation/x86: Introduce enclave runtime management section
Enclave runtime management is introduced following the pattern of the section describing enclave building. Provide a brief summary of enclave runtime management, pointing to the functions implementing the ioctl()s that will contain details within their kernel-doc. Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Link: https://lkml.kernel.org/r/1da0b9a938b28e68e6870ebd5291490d680e700b.1652137848.git.reinette.chatre@intel.com |
||
Ard Biesheuvel
|
0f5b2c69a4 |
efi: vars: Remove deprecated 'efivars' sysfs interface
Commit
|
||
Dongli Zhang
|
04c14e8e38 |
x86/swiotlb: fix param usage in boot-options.rst
Fix the usage of swiotlb param in kernel doc. Signed-off-by: Dongli Zhang <dongli.zhang@oracle.com> Signed-off-by: Christoph Hellwig <hch@lst.de> |
||
|
Linus Torvalds
|
88a618920e |
It was a moderately busy cycle for documentation; highlights include:
- After a long period of inactivity, the Japanese translations are seeing
some much-needed maintenance and updating.
- Reworked IOMMU documentation
- Some new documentation for static-analysis tools
- A new overall structure for the memory-management documentation. This
is an LSFMM outcome that, it is hoped, will help encourage developers to
fill in the many gaps. Optimism is eternal...but hopefully it will
work.
- More Chinese translations.
Plus the usual typo fixes, updates, etc.
-----BEGIN PGP SIGNATURE-----
iQFDBAABCAAtFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAmKLqZQPHGNvcmJldEBs
d24ubmV0AAoJEBdDWhNsDH5YdgQH/2/9+EgQDes93f/+iKtbO23EV67392dwrmXS
kYg8lR4948/Q3jzgMloUo6hNOoxXeV/sqmdHu0LjUhFN+BGsp9fFjd/jp0XhWcqA
nnc9foGbpmeFPxHeAg2aqV84eeasLoO5lUUm2rNoPBLd6HFV+IYC5R4VZ+w42StB
5bYEOYwHXMvQZXkivZDse82YmvQK3/2rRGTUoFhME/Aap6rFgWJJ+XQcSKA7WmwW
OpJqq+FOsjsxHe6IFVy6onzlqgGJM8zM2bLtqedid6yaE3uACcHMb/OyAjp0rdKF
BQvaG+d3f7DugABqM6Y1oU75iBtJWWYgGeAm36JtX+3mz2uR/f0=
=3UoR
-----END PGP SIGNATURE-----
Merge tag 'docs-5.19' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"It was a moderately busy cycle for documentation; highlights include:
- After a long period of inactivity, the Japanese translations are
seeing some much-needed maintenance and updating.
- Reworked IOMMU documentation
- Some new documentation for static-analysis tools
- A new overall structure for the memory-management documentation.
This is an LSFMM outcome that, it is hoped, will help encourage
developers to fill in the many gaps. Optimism is eternal...but
hopefully it will work.
- More Chinese translations.
Plus the usual typo fixes, updates, etc"
* tag 'docs-5.19' of git://git.lwn.net/linux: (70 commits)
docs: pdfdocs: Add space for chapter counts >= 100 in TOC
docs/zh_CN: Add dev-tools/gdb-kernel-debugging.rst Chinese translation
input: Docs: correct ntrig.rst typo
input: Docs: correct atarikbd.rst typos
MAINTAINERS: Become the docs/zh_CN maintainer
docs/zh_CN: fix devicetree usage-model translation
mm,doc: Add new documentation structure
Documentation: drop more IDE boot options and ide-cd.rst
Documentation/process: use scripts/get_maintainer.pl on patches
MAINTAINERS: Add entry for DOCUMENTATION/JAPANESE
docs/trans/ja_JP/howto: Don't mention specific kernel versions
docs/ja_JP/SubmittingPatches: Request summaries for commit references
docs/ja_JP/SubmittingPatches: Add Suggested-by as a standard signature
docs/ja_JP/SubmittingPatches: Randy has moved
docs/ja_JP/SubmittingPatches: Suggest the use of scripts/get_maintainer.pl
docs/ja_JP/SubmittingPatches: Update GregKH links
Documentation/sysctl: document max_rcu_stall_to_panic
Documentation: add missing angle bracket in cgroup-v2 doc
Documentation: dev-tools: use literal block instead of code-block
docs/zh_CN: add vm numa translation
...
|
||
|
Linus Torvalds
|
8443516da6 |
platform-drivers-x86 for v5.19-1
Highlights:
- New drivers:
- Intel "In Field Scan" (IFS) support
- Winmate FM07/FM07P buttons
- Mellanox SN2201 support
- AMD PMC driver enhancements
- Lots of various other small fixes and hardware-id additions
The following is an automated git shortlog grouped by driver:
Documentation:
- In-Field Scan
Documentation/ABI:
- Add new attributes for mlxreg-io sysfs interfaces
- sysfs-class-firmware-attributes: Misc. cleanups
- sysfs-class-firmware-attributes: Fix Sphinx errors
- sysfs-driver-intel_sdsi: Fix sphinx warnings
acerhdf:
- Cleanup str_starts_with()
amd-pmc:
- Fix build error unused-function
- Shuffle location of amd_pmc_get_smu_version()
- Avoid reading SMU version at probe time
- Move FCH init to first use
- Move SMU logging setup out of init
- Fix compilation without CONFIG_SUSPEND
amd_hsmp:
- Add HSMP protocol version 5 messages
asus-nb-wmi:
- Add keymap for MyASUS key
asus-wmi:
- Update unknown code message
- Use kobj_to_dev()
- Fix driver not binding when fan curve control probe fails
- Potential buffer overflow in asus_wmi_evaluate_method_buf()
barco-p50-gpio:
- Fix duplicate included linux/io.h
dell-laptop:
- Add quirk entry for Latitude 7520
gigabyte-wmi:
- Add support for Z490 AORUS ELITE AC and X570 AORUS ELITE WIFI
- added support for B660 GAMING X DDR4 motherboard
hp-wmi:
- Correct code style related issues
intel-hid:
- fix _DSM function index handling
intel-uncore-freq:
- Prevent driver loading in guests
intel_cht_int33fe:
- Set driver data
platform/mellanox:
- Add support for new SN2201 system
platform/surface:
- aggregator: Fix initialization order when compiling as builtin module
- gpe: Add support for Surface Pro 8
platform/x86/dell:
- add buffer allocation/free functions for SMI calls
platform/x86/intel:
- Fix 'rmmod pmt_telemetry' panic
- pmc/core: Use kobj_to_dev()
- pmc/core: change pmc_lpm_modes to static
platform/x86/intel/ifs:
- Add CPU_SUP_INTEL dependency
- add ABI documentation for IFS
- Add IFS sysfs interface
- Add scan test support
- Authenticate and copy to secured memory
- Check IFS Image sanity
- Read IFS firmware image
- Add stub driver for In-Field Scan
platform/x86/intel/sdsi:
- Fix bug in multi packet reads
- Poll on ready bit for writes
- Handle leaky bucket
platform_data/mlxreg:
- Add field for notification callback
pmc_atom:
- dont export pmc_atom_read - no modular users
- remove unused pmc_atom_write()
samsung-laptop:
- use kobj_to_dev()
- Fix an unsigned comparison which can never be negative
stop_machine:
- Add stop_core_cpuslocked() for per-core operations
think-lmi:
- certificate support clean ups
thinkpad_acpi:
- Correct dual fan probe
- Add a s2idle resume quirk for a number of laptops
- Convert btusb DMI list to quirks
tools/power/x86/intel-speed-select:
- Fix warning for perf_cap.cpu
- Display error on turbo mode disabled
- fix build failure when using -Wl,--as-needed
toshiba_acpi:
- use kobj_to_dev()
trace:
- platform/x86/intel/ifs: Add trace point to track Intel IFS operations
winmate-fm07-keys:
- Winmate FM07/FM07P buttons
wmi:
- replace usage of found with dedicated list iterator variable
x86/microcode/intel:
- Expose collect_cpu_info_early() for IFS
x86/msr-index:
- Define INTEGRITY_CAPABILITIES MSR
-----BEGIN PGP SIGNATURE-----
iQFIBAABCAAyFiEEuvA7XScYQRpenhd+kuxHeUQDJ9wFAmKKlA0UHGhkZWdvZWRl
QHJlZGhhdC5jb20ACgkQkuxHeUQDJ9w0Iwf+PYoq7qtU6j6N2f8gL2s65JpKiSPP
CkgnCzTP+khvNnTWMQS8RW9VE6YrHXmN/+d3UAvRrHsOYm3nyZT5aPju9xJ6Xyfn
5ZdMVvYxz7cm3lC6ay8AQt0Cmy6im/+lzP5vA5K68IYh0fPX/dvuOU57pNvXYFfk
Yz5/Gm0t0C4CKVqkcdU/zkNawHP+2+SyQe+Ua2srz7S3DAqUci0lqLr/w9Xk2Yij
nCgEWFB1Qjd2NoyRRe44ksLQ0dXpD4ADDzED+KPp6VTGnw61Eznf9319Z5ONNa/O
VAaSCcDNKps8d3ZpfCpLb3Rs4ztBCkRnkLFczJBgPsBiuDmyTT2/yeEtNg==
=HdEG
-----END PGP SIGNATURE-----
Merge tag 'platform-drivers-x86-v5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:
"This includes some small changes to kernel/stop_machine.c and arch/x86
which are deps of the new Intel IFS support.
Highlights:
- New drivers:
- Intel "In Field Scan" (IFS) support
- Winmate FM07/FM07P buttons
- Mellanox SN2201 support
- AMD PMC driver enhancements
- Lots of various other small fixes and hardware-id additions"
* tag 'platform-drivers-x86-v5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (54 commits)
platform/x86/intel/ifs: Add CPU_SUP_INTEL dependency
platform/x86: intel_cht_int33fe: Set driver data
platform/x86: intel-hid: fix _DSM function index handling
platform/x86: toshiba_acpi: use kobj_to_dev()
platform/x86: samsung-laptop: use kobj_to_dev()
platform/x86: gigabyte-wmi: Add support for Z490 AORUS ELITE AC and X570 AORUS ELITE WIFI
tools/power/x86/intel-speed-select: Fix warning for perf_cap.cpu
tools/power/x86/intel-speed-select: Display error on turbo mode disabled
Documentation: In-Field Scan
platform/x86/intel/ifs: add ABI documentation for IFS
trace: platform/x86/intel/ifs: Add trace point to track Intel IFS operations
platform/x86/intel/ifs: Add IFS sysfs interface
platform/x86/intel/ifs: Add scan test support
platform/x86/intel/ifs: Authenticate and copy to secured memory
platform/x86/intel/ifs: Check IFS Image sanity
platform/x86/intel/ifs: Read IFS firmware image
platform/x86/intel/ifs: Add stub driver for In-Field Scan
stop_machine: Add stop_core_cpuslocked() for per-core operations
x86/msr-index: Define INTEGRITY_CAPABILITIES MSR
x86/microcode/intel: Expose collect_cpu_info_early() for IFS
...
|
||
|
Linus Torvalds
|
c5a3d3c01e |
- Remove a bunch of chicken bit options to turn off CPU features which
are not really needed anymore - Misc fixes and cleanups -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmKLdfgACgkQEsHwGGHe VUpB5Q//TIGVgmnSd0YYxY2cIe047lfcd34D+3oEGk0d2FidtirP/tjgBqIXRuY5 UncoveqBuI/6/7bodP/ANg9DNVXv2489eFYyZtEOLSGnfzV2AU10aw95cuQQG+BW YIc6bGSsgfiNo8Vtj4L3xkVqxOrqaCYnh74GTSNNANht3i8KH8Qq9n3qZTuMiF6R fH9xWak3TZB2nMzHdYrXh0sSR6eBHN3KYSiT0DsdlU9PUlavlSPFYQRiAlr6FL6J BuYQdlUaCQbINvaviGW4SG7fhX32RfF/GUNaBajB40TO6H98KZLpBBvstWQ841xd /o44o5wbghoGP1ne8OKwP+SaAV2bE6twd5eO1lpwcpXnQfATvjQ2imxvOiRhy5LY pFPt/hko9gKWJ6SI0SQ4tiKJALFPLWD6561scHU6PoriFhv0SRIaPmJyEsDYynMz bCXaPPsoovRwwwBfAxxQjljIlhQSBVt3gWZ8NWD1tYbNaqM+WK7xKBaONGh3OCw3 iK7lsbbljtM0zmANImYyeo7+Hr1NVOmMiK2WZYbxhxgzH3l8v/6EbDt3I70WU57V 9apCU3/nk/HFpX65SdW5qmuiWLVdH9NXrEqbvaUB4ApT18MdUUugewBhcGnf3Umu wEtltzziqcIkxzDoXXpBGWpX31S7PsM2XVDqYC7dwuNttgEw2Fc= =7AUX -----END PGP SIGNATURE----- Merge tag 'x86_cpu_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 CPU feature updates from Borislav Petkov: - Remove a bunch of chicken bit options to turn off CPU features which are not really needed anymore - Misc fixes and cleanups * tag 'x86_cpu_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/speculation: Add missing prototype for unpriv_ebpf_notify() x86/pm: Fix false positive kmemleak report in msr_build_context() x86/speculation/srbds: Do not try to turn mitigation off when not supported x86/cpu: Remove "noclflush" x86/cpu: Remove "noexec" x86/cpu: Remove "nosmep" x86/cpu: Remove CONFIG_X86_SMAP and "nosmap" x86/cpu: Remove "nosep" x86/cpu: Allow feature bit names from /proc/cpuinfo in clearcpuid= |
||
|
Linus Torvalds
|
3a755ebcc2 |
Intel Trust Domain Extensions
This is the Intel version of a confidential computing solution called Trust Domain Extensions (TDX). This series adds support to run the kernel as part of a TDX guest. It provides similar guest protections to AMD's SEV-SNP like guest memory and register state encryption, memory integrity protection and a lot more. Design-wise, it differs from AMD's solution considerably: it uses a software module which runs in a special CPU mode called (Secure Arbitration Mode) SEAM. As the name suggests, this module serves as sort of an arbiter which the confidential guest calls for services it needs during its lifetime. Just like AMD's SNP set, this series reworks and streamlines certain parts of x86 arch code so that this feature can be properly accomodated. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmKLbisACgkQEsHwGGHe VUqZLg/7B55iygCwzz0W/KLcXL2cISatUpzGbFs1XTbE9DMz06BPkOsEjF2k8ckv kfZjgqhSx3GvUI80gK0Tn2M2DfIj3nKuNSXd1pfextP7AxEf68FFJsQz1Ju7bHpT pZaG+g8IK4+mnEHEKTCO9ANg/Zw8yqJLdtsCaCNE9SUGUfQ6m/ujTEfsambXDHNm khyCAgpIGSOt51/4apoR9ebyrNCaeVbDawpIPjTy+iyFRc/WyaLFV9CQ8klw4gbw r/90x2JYxvAf0/z/ifT9Wa+TnYiQ0d4VjFbfr0iJ4GcPn5L3EIoIKPE8vPGMpoSX fLSzoNmAOT3ja57ytUUQ3o0edoRUIPEdixOebf9qWvE/aj7W37YRzrlJ8Ej/x9Jy HcI4WZF6Dr1bh6FnI/xX2eVZRzLOL4j9gNyPCwIbvgr1NjDqQnxU7nhxVMmQhJrs IdiEcP5WYerLKfka/uF//QfWUg5mDBgFa1/3xK57Z3j0iKWmgjaPpR0SWlOKjj8G tr0gGN9ejikZTqXKGsHn8fv/R3bjXvbVD8z0IEcx+MIrRmZPnX2QBlg7UA1AXV5n HoVwPFdH1QAtjZq1MRcL4hTOjz3FkS68rg7ZH0f2GWJAzWmEGytBIhECRnN/PFFq VwRB4dCCt0bzqRxkiH5lzdgR+xqRe61juQQsMzg+Flv/trpXDqM= =ac9K -----END PGP SIGNATURE----- Merge tag 'x86_tdx_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull Intel TDX support from Borislav Petkov: "Intel Trust Domain Extensions (TDX) support. This is the Intel version of a confidential computing solution called Trust Domain Extensions (TDX). This series adds support to run the kernel as part of a TDX guest. It provides similar guest protections to AMD's SEV-SNP like guest memory and register state encryption, memory integrity protection and a lot more. Design-wise, it differs from AMD's solution considerably: it uses a software module which runs in a special CPU mode called (Secure Arbitration Mode) SEAM. As the name suggests, this module serves as sort of an arbiter which the confidential guest calls for services it needs during its lifetime. Just like AMD's SNP set, this series reworks and streamlines certain parts of x86 arch code so that this feature can be properly accomodated" * tag 'x86_tdx_for_v5.19_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits) x86/tdx: Fix RETs in TDX asm x86/tdx: Annotate a noreturn function x86/mm: Fix spacing within memory encryption features message x86/kaslr: Fix build warning in KASLR code in boot stub Documentation/x86: Document TDX kernel architecture ACPICA: Avoid cache flush inside virtual machines x86/tdx/ioapic: Add shared bit for IOAPIC base address x86/mm: Make DMA memory shared for TD guest x86/mm/cpa: Add support for TDX shared memory x86/tdx: Make pages shared in ioremap() x86/topology: Disable CPU online/offline control for TDX guests x86/boot: Avoid #VE during boot for TDX platforms x86/boot: Set CR0.NE early and keep it set during the boot x86/acpi/x86/boot: Add multiprocessor wake-up support x86/boot: Add a trampoline for booting APs via firmware handoff x86/tdx: Wire up KVM hypercalls x86/tdx: Port I/O: Add early boot support x86/tdx: Port I/O: Add runtime hypercalls x86/boot: Port I/O: Add decompression-time support for TDX x86/boot: Port I/O: Allow to hook up alternative helpers ... |
||
Tony Luck
|
34604d2891 |
Documentation: In-Field Scan
Add documentation for In-Field Scan (IFS). This documentation describes the basics of IFS, the loading IFS image, chunk authentication, running scan and how to check result via sysfs. The CORE_CAPABILITIES MSR enumerates whether IFS is supported. The full github location for distributing the IFS images is still being decided. So just a placeholder included for now in the documentation. Future CPUs will support more than one type of test. Plan for that now by using a "_0" suffix on the ABI directory names. Additional test types will use "_1", etc. Reviewed-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20220506225410.1652287-13-tony.luck@intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com> |
||
Alex Deucher
|
2a8d78d566 |
Documentation: x86: rework IOMMU documentation
Add preliminary documentation for AMD IOMMU and combine with the existing Intel IOMMU documentation and clean up and modernize some of the existing documentation to align with the current state of the kernel. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Joerg Roedel <jroedel@suse.de> Link: https://lore.kernel.org/r/20220422192656.624920-1-alexander.deucher@amd.com Signed-off-by: Jonathan Corbet <corbet@lwn.net> |
||
|
Kuppuswamy Sathyanarayanan
|
b9c7ba5877 |
Documentation/x86: Document TDX kernel architecture
Document the TDX guest architecture details like #VE support, shared memory, etc. [ dhansen: made some wording changes, including removing all the plural "#VE's" and "#VEs". ] Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com> Link: https://lkml.kernel.org/r/20220405232939.73860-31-kirill.shutemov@linux.intel.com |
||
Michael Roth
|
ba37a1438a |
x86/sev: Add a sev= cmdline option
For debugging purposes it is very useful to have a way to see the full contents of the SNP CPUID table provided to a guest. Add an sev=debug kernel command-line option to do so. Also introduce some infrastructure so that additional options can be specified via sev=option1[,option2] over time in a consistent manner. [ bp: Massage, simplify string parsing. ] Suggested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Michael Roth <michael.roth@amd.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lore.kernel.org/r/20220307213356.2797205-41-brijesh.singh@amd.com |
||
|
Michael Roth
|
8c9c509baf |
x86/boot: Add a pointer to Confidential Computing blob in bootparams
The previously defined Confidential Computing blob is provided to the kernel via a setup_data structure or EFI config table entry. Currently, these are both checked for by boot/compressed kernel to access the CPUID table address within it for use with SEV-SNP CPUID enforcement. To also enable that enforcement for the run-time kernel, similar access to the CPUID table is needed early on while it's still using the identity-mapped page table set up by boot/compressed, where global pointers need to be accessed via fixup_pointer(). This isn't much of an issue for accessing setup_data, and the EFI config table helper code currently used in boot/compressed *could* be used in this case as well since they both rely on identity-mapping. However, it has some reliance on EFI helpers/string constants that would need to be accessed via fixup_pointer(), and fixing it up while making it shareable between boot/compressed and run-time kernel is fragile and introduces a good bit of ugliness. Instead, add a boot_params->cc_blob_address pointer that the boot/compressed kernel can initialize so that the run-time kernel can access the CC blob from there instead of re-scanning the EFI config table. Also document these in Documentation/x86/zero-page.rst. While there, add missing documentation for the acpi_rsdp_addr field, which serves a similar purpose in providing the run-time kernel a pointer to the ACPI RSDP table so that it does not need to [re-]scan the EFI configuration table. [ bp: Fix typos, massage commit message. ] Signed-off-by: Michael Roth <michael.roth@amd.com> Signed-off-by: Brijesh Singh <brijesh.singh@amd.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lore.kernel.org/r/20220307213356.2797205-34-brijesh.singh@amd.com |
||
Chin En Lin
|
d4cd2389d0 |
Documentation: x86: Fix obsolete name of page fault handler
Since commit |
||
Borislav Petkov
|
76ea0025a2 |
x86/cpu: Remove "noexec"
It doesn't make any sense to disable non-executable mappings - security-wise or else. So rip out that switch and move the remaining code into setup.c and delete setup_nx.c Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Lai Jiangshan <jiangshanlai@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20220127115626.14179-6-bp@alien8.de |
||
|
Borislav Petkov
|
385d2ae0a1 |
x86/cpu: Remove "nosmep"
There should be no need to disable SMEP anymore. Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Lai Jiangshan <jiangshanlai@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20220127115626.14179-5-bp@alien8.de |
||
|
Borislav Petkov
|
dbae0a934f |
x86/cpu: Remove CONFIG_X86_SMAP and "nosmap"
Those were added as part of the SMAP enablement but SMAP is currently an integral part of kernel proper and there's no need to disable it anymore. Rip out that functionality. Leave --uaccess default on for objtool as this is what objtool should do by default anyway. If still needed - clearcpuid=smap. Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Lai Jiangshan <jiangshanlai@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20220127115626.14179-4-bp@alien8.de |
||
|
Linus Torvalds
|
636f64db07 |
- More noinstr fixes
- Add an erratum workaround for Intel CPUs which, in certain circumstances, end up consuming an unrelated uncorrectable memory error when using fast string copy insns - Remove the MCE tolerance level control as it is not really needed or used anymore -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmI7Pe4ACgkQEsHwGGHe VUpQQRAAjEK4k+iXhWrNaX736WSaVb8qom+JFlAarrOKaJ6UpdQn+IZD8aF7iscr n1LWGYOyieFvovt69jjTeSprbCVueyhvCmOxxsvH9F2qhNklNwxKEaAPNBXgDuyJ SOs1fTZO4tS85qZbnZa/Um1keSIacBCVar49sXKsj6Ss+rg6wXnPitQh3ztGOAVn CBkNE5n6GG2ELjV+fuVOO54NixMtoElj8SIplQ0UOMlQPBO0Z5MkY5VM6LaQVx/e GGEna6Jo1Z9+b29yf6bR5izWLWcBHTXjvn6i2EIulqKGFRCFmPDBWmuw8YqeyG2a eT/sxVILKZby0Dj11Q1uxaUcln48WNIM5WPYWojaOelzYNNjJ1Kwa+klrlLOxbnM j92MSEBe7Nr2w4cukBg+0sIAdtcfRNx5Oov8yXC9VUA0tg4satAoYHdXn35eVJ3z ZEFo+94H3T0nlCwP+6TayXkTs1k1YICSaCZzp7HcbUdxCsIZQ0kyGknLVtTzydQc z3GEze35VPeqULeBntoaAb2Vpy76Hs5uBl1lkXv+wEGJuECdDld8IilvqtEzCZy5 vLRizqfXle1PQjlGG+eAqUG/7TPTvDmwuCyHEiCdSf1r3f8WLXevdP4WGyCB/yXy VYLmz/Rbga1wsFC4w19pe8FM2S6SSeODYqx6zEjiKYgbNjV/thQ= =oVWo -----END PGP SIGNATURE----- Merge tag 'ras_core_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RAS updates from Borislav Petkov: - More noinstr fixes - Add an erratum workaround for Intel CPUs which, in certain circumstances, end up consuming an unrelated uncorrectable memory error when using fast string copy insns - Remove the MCE tolerance level control as it is not really needed or used anymore * tag 'ras_core_for_v5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mce: Remove the tolerance level control x86/mce: Work around an erratum on fast string copy instructions x86/mce: Use arch atomic and bit helpers |
||
|
Linus Torvalds
|
1464677662 |
platform-drivers-x86 for v5.18-1
Highlights:
- new drivers:
- AMD Host System Management Port (HSMP)
- Intel Software Defined Silicon
- removed drivers (functionality folded into other drivers):
- intel_cht_int33fe_microb
- surface3_button
- amd-pmc:
- s2idle bug-fixes
- Support for AMD Spill to DRAM STB feature
- hp-wmi:
- Fix SW_TABLET_MODE detection method (and other fixes)
- Support omen thermal profile policy v1
- serial-multi-instantiate:
- Add SPI device support
- Add support for CS35L41 amplifiers used in new laptops
- think-lmi:
- syfs-class-firmware-attributes Certificate authentication support
- thinkpad_acpi:
- Fixes + quirks
- Add platform_profile support on AMD based ThinkPads
- x86-android-tablets
- Improve Asus ME176C / TF103C support
- Support Nextbook Ares 8, Lenovo Tab 2 830 and 1050 tablets
- Lots of various other small fixes and hardware-id additions
The following is an automated git shortlog grouped by driver:
ACPI / scan:
- Create platform device for CS35L41
ACPI / x86:
- Add support for LPS0 callback handler
ALSA:
- hda/realtek: Add support for HP Laptops
Add AMD system management interface:
- Add AMD system management interface
Add Intel Software Defined Silicon driver:
- Add Intel Software Defined Silicon driver
Documentation:
- syfs-class-firmware-attributes: Lenovo Certificate support
- Add x86/amd_hsmp driver
ISST:
- Fix possible circular locking dependency detected
Input:
- soc_button_array - add support for Microsoft Surface 3 (MSHW0028) buttons
Merge remote-tracking branch 'pdx86/platform-drivers-x86-pinctrl-pmu_clk' into review-hans-gcc12:
- Merge remote-tracking branch 'pdx86/platform-drivers-x86-pinctrl-pmu_clk' into review-hans-gcc12
Merge tag 'platform-drivers-x86-serial-multi-instantiate-1' into review-hans:
- Merge tag 'platform-drivers-x86-serial-multi-instantiate-1' into review-hans
Replace acpi_bus_get_device():
- Replace acpi_bus_get_device()
amd-pmc:
- Only report STB errors when STB enabled
- Drop CPU QoS workaround
- Output error codes in messages
- Move to later in the suspend process
- Validate entry into the deepest state on resume
- uninitialized variable in amd_pmc_s2d_init()
- Set QOS during suspend on CZN w/ timer wakeup
- Add support for AMD Spill to DRAM STB feature
- Correct usage of SMU version
- Make amd_pmc_stb_debugfs_fops static
asus-tf103c-dock:
- Make 2 global structs static
asus-wmi:
- Fix regression when probing for fan curve control
hp-wmi:
- support omen thermal profile policy v1
- Changing bios_args.data to be dynamically allocated
- Fix 0x05 error code reported by several WMI calls
- Fix SW_TABLET_MODE detection method
- Fix hp_wmi_read_int() reporting error (0x05)
huawei-wmi:
- check the return value of device_create_file()
i2c-multi-instantiate:
- Rename it for a generic serial driver name
int3472:
- Add terminator to gpiod_lookup_table
intel-uncore-freq:
- fix uncore_freq_common_init() error codes
intel_cht_int33fe:
- Move to intel directory
- Drop Lenovo Yogabook YB1-X9x code
- Switch to DMI modalias based loading
intel_crystal_cove_charger:
- Fix IRQ masking / unmasking
lg-laptop:
- Move setting of battery charge limit to common location
pinctrl:
- baytrail: Add pinconf group + function for the pmu_clk
platform/dcdbas:
- move EXPORT_SYMBOL after function
platform/surface:
- Remove Surface 3 Button driver
- surface3-wmi: Simplify resource management
- Replace acpi_bus_get_device()
- Reinstate platform dependency
platform/x86/intel-uncore-freq:
- Split common and enumeration part
platform/x86/intel/uncore-freq:
- Display uncore current frequency
- Use sysfs API to create attributes
- Move to uncore-frequency folder
selftests:
- sdsi: test sysfs setup
serial-multi-instantiate:
- Add SPI support
- Reorganize I2C functions
spi:
- Add API to count spi acpi resources
- Support selection of the index of the ACPI Spi Resource before alloc
- Create helper API to lookup ACPI info for spi device
- Make spi_alloc_device and spi_add_device public again
surface:
- surface3_power: Fix battery readings on batteries without a serial number
think-lmi:
- Certificate authentication support
thinkpad_acpi:
- consistently check fan_get_status return.
- Don't use test_bit on an integer
- Fix compiler warning about uninitialized err variable
- clean up dytc profile convert
- Add PSC mode support
- Add dual fan probe
- Add dual-fan quirk for T15g (2nd gen)
- Fix incorrect use of platform profile on AMD platforms
- Add quirk for ThinkPads without a fan
tools arch x86:
- Add Intel SDSi provisiong tool
touchscreen_dmi:
- Add info for the RWC NANOTE P8 AY07J 2-in-1
x86-android-tablets:
- Depend on EFI and SPI
- Lenovo Yoga Tablet 2 830/1050 sound support
- Workaround Lenovo Yoga Tablet 2 830/1050 poweroff hang
- Add Lenovo Yoga Tablet 2 830 / 1050 data
- Fix EBUSY error when requesting IOAPIC IRQs
- Minor charger / fuel-gauge improvements
- Add Nextbook Ares 8 data
- Add IRQ to Asus ME176C accelerometer info
- Add lid-switch gpio-keys pdev to Asus ME176C + TF103C
- Add x86_android_tablet_get_gpiod() helper
- Add Asus ME176C/TF103C charger and fuelgauge props
- Add battery swnode support
- Trivial typo fix for MODULE_AUTHOR
- Fix the buttons on CZC P10T tablet
- Constify the gpiod_lookup_tables arrays
- Add an init() callback to struct x86_dev_info
- Add support for disabling ACPI _AEI handlers
- Correct crystal_cove_charger module name
-----BEGIN PGP SIGNATURE-----
iQFIBAABCAAyFiEEuvA7XScYQRpenhd+kuxHeUQDJ9wFAmI8SjEUHGhkZWdvZWRl
QHJlZGhhdC5jb20ACgkQkuxHeUQDJ9wYUwf/cdUMPFy5cwpHq1LuqGy+PxVCRHCe
71PFd2Ycj+HGOtrt66RxSiCC1Seb4tylr7FvudToDaqWjlBf5n6LhpDudg4ds7Qw
lCuRlaXTIrF7p3nOLIsWvJPRqacMG79KkRM62MLTS2evtRYjbnKvFzNPJPzr8827
1AhCakE92S8gkR5lUZYYHtsaz9rZ4z4TrEtjO6GdlbL2bDw0l18dNNwdMomfVpNS
bBIHIDLeufDuMJ4PxIHlE5MB3AuZAuc0HTJWihozyJX/h5FMGI6qVm0/s9RAfHgX
XdMCpADtS/JjHCmkFgLZYIzvXTxwQVZRo5VO0Wrv5Mis6gSpxJXCd0aKlA==
=1x9/
-----END PGP SIGNATURE-----
Merge tag 'platform-drivers-x86-v5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:
"New drivers:
- AMD Host System Management Port (HSMP)
- Intel Software Defined Silicon
Removed drivers (functionality folded into other drivers):
- intel_cht_int33fe_microb
- surface3_button
amd-pmc:
- s2idle bug-fixes
- Support for AMD Spill to DRAM STB feature
hp-wmi:
- Fix SW_TABLET_MODE detection method (and other fixes)
- Support omen thermal profile policy v1
serial-multi-instantiate:
- Add SPI device support
- Add support for CS35L41 amplifiers used in new laptops
think-lmi:
- syfs-class-firmware-attributes Certificate authentication support
thinkpad_acpi:
- Fixes + quirks
- Add platform_profile support on AMD based ThinkPads
x86-android-tablets:
- Improve Asus ME176C / TF103C support
- Support Nextbook Ares 8, Lenovo Tab 2 830 and 1050 tablets
Lots of various other small fixes and hardware-id additions"
* tag 'platform-drivers-x86-v5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (60 commits)
platform/x86: think-lmi: Certificate authentication support
Documentation: syfs-class-firmware-attributes: Lenovo Certificate support
platform/x86: amd-pmc: Only report STB errors when STB enabled
platform/x86: amd-pmc: Drop CPU QoS workaround
platform/x86: amd-pmc: Output error codes in messages
platform/x86: amd-pmc: Move to later in the suspend process
ACPI / x86: Add support for LPS0 callback handler
platform/x86: thinkpad_acpi: consistently check fan_get_status return.
platform/x86: hp-wmi: support omen thermal profile policy v1
platform/x86: hp-wmi: Changing bios_args.data to be dynamically allocated
platform/x86: hp-wmi: Fix 0x05 error code reported by several WMI calls
platform/x86: hp-wmi: Fix SW_TABLET_MODE detection method
platform/x86: hp-wmi: Fix hp_wmi_read_int() reporting error (0x05)
platform/x86: amd-pmc: Validate entry into the deepest state on resume
platform/x86: thinkpad_acpi: Don't use test_bit on an integer
platform/x86: thinkpad_acpi: Fix compiler warning about uninitialized err variable
platform/x86: thinkpad_acpi: clean up dytc profile convert
platform/x86: x86-android-tablets: Depend on EFI and SPI
platform/x86: amd-pmc: uninitialized variable in amd_pmc_s2d_init()
platform/x86: intel-uncore-freq: fix uncore_freq_common_init() error codes
...
|
||
|
Linus Torvalds
|
f648372dfe |
Thermal control updates for 5.18-rc1
- Add a new thermal driver for the Intel Hardware Feedback Interface
(HFI) including the HFI initialization, HFI notification interrupt
handling and sending CPU capabilities change messages to user
space via the thermal netlink interface (Ricardo Neri, Srinivas
Pandruvada, Nathan Chancellor, Randy Dunlap).
- Extend the intel-speed-select utility to handle out-of-band CPU
configuration changes and add support for the CPU capabilities
change messages sent over the thermal netlink interface by the new
HFI thermal driver to it (Srinivas Pandruvada).
- Convert the DT bindings to yaml format for the Exynos platform
and fix and update the MAINTAINERS file for this driver (Krzysztof
Kozlowski).
- Register the thermal zones as HWmon sensors for the QCom's
Tsens driver and TI thermal platforms (Dmitry Baryshkov, Romain
Naour).
- Add the msm8953 compatible documentation in the bindings (Luca
Weiss).
- Add the sm8150 platform support to the QCom LMh driver's DT
binding (Thara Gopinath).
- Check the command result from the IPC command to the BPMP in the
Tegra driver (Mikko Perttunen).
- Silence the error for normal configuration where the interrupt
is optionnal in the Broadcom thermal driver (Florian Fainelli).
- Remove remaining dead code from the TI thermal driver (Yue
Haibing).
- Don't use bitmap_weight() in end_power_clamp() in the powerclamp
driver (Yury Norov).
- Update the OS policy capabilities handshake in the int340x thermal
driver (Srinivas Pandruvada).
- Increase the policies bitmap size in int340x (Srinivas Pandruvada).
- Replace acpi_bus_get_device() with acpi_fetch_acpi_dev() in the
int340x thermal driver (Rafael Wysocki).
- Check for NULL after calling kmemdup() in int340x (Jiasheng Jiang).
- Add Intel Dynamic Power and Thermal Framework (DPTF) kernel interface
documentation (Srinivas Pandruvada).
- Fix bullet list warning in the thermal documentation (Randy Dunlap).
-----BEGIN PGP SIGNATURE-----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=6PYL
-----END PGP SIGNATURE-----
Merge tag 'thermal-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"As far as new functionality is concerned, there is a new thermal
driver for the Intel Hardware Feedback Interface (HFI) along with some
intel-speed-select utility changes to support it. There are also new
DT compatible strings for a couple of platforms, and thermal zones on
some platforms will be registered as HWmon sensors now.
Apart from the above, some drivers are updated (fixes mostly) and
there is a new piece of documentation for the Intel DPTF (Dynamic
Power and Thermal Framework) sysfs interface.
Specifics:
- Add a new thermal driver for the Intel Hardware Feedback Interface
(HFI) including the HFI initialization, HFI notification interrupt
handling and sending CPU capabilities change messages to user space
via the thermal netlink interface (Ricardo Neri, Srinivas
Pandruvada, Nathan Chancellor, Randy Dunlap).
- Extend the intel-speed-select utility to handle out-of-band CPU
configuration changes and add support for the CPU capabilities
change messages sent over the thermal netlink interface by the new
HFI thermal driver to it (Srinivas Pandruvada).
- Convert the DT bindings to yaml format for the Exynos platform and
fix and update the MAINTAINERS file for this driver (Krzysztof
Kozlowski).
- Register the thermal zones as HWmon sensors for the QCom's Tsens
driver and TI thermal platforms (Dmitry Baryshkov, Romain Naour).
- Add the msm8953 compatible documentation in the bindings (Luca
Weiss).
- Add the sm8150 platform support to the QCom LMh driver's DT binding
(Thara Gopinath).
- Check the command result from the IPC command to the BPMP in the
Tegra driver (Mikko Perttunen).
- Silence the error for normal configuration where the interrupt is
optionnal in the Broadcom thermal driver (Florian Fainelli).
- Remove remaining dead code from the TI thermal driver (Yue
Haibing).
- Don't use bitmap_weight() in end_power_clamp() in the powerclamp
driver (Yury Norov).
- Update the OS policy capabilities handshake in the int340x thermal
driver (Srinivas Pandruvada).
- Increase the policies bitmap size in int340x (Srinivas Pandruvada).
- Replace acpi_bus_get_device() with acpi_fetch_acpi_dev() in the
int340x thermal driver (Rafael Wysocki).
- Check for NULL after calling kmemdup() in int340x (Jiasheng Jiang).
- Add Intel Dynamic Power and Thermal Framework (DPTF) kernel
interface documentation (Srinivas Pandruvada).
- Fix bullet list warning in the thermal documentation (Randy
Dunlap)"
* tag 'thermal-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (30 commits)
thermal: int340x: Update OS policy capability handshake
thermal: int340x: Increase bitmap size
Documentation: thermal: DPTF Documentation
MAINTAINERS: thermal: samsung: update Krzysztof Kozlowski's email
thermal/drivers/ti-soc-thermal: Remove unused function ti_thermal_get_temp()
thermal/drivers/brcmstb_thermal: Interrupt is optional
thermal: tegra-bpmp: Handle errors in BPMP response
drivers/thermal/ti-soc-thermal: Add hwmon support
dt-bindings: thermal: tsens: Add msm8953 compatible
dt-bindings: thermal: Add sm8150 compatible string for LMh
thermal/drivers/qcom/lmh: Add support for sm8150
thermal/drivers/tsens: register thermal zones as hwmon sensors
MAINTAINERS: thermal: samsung: Drop obsolete properties
dt-bindings: thermal: samsung: Convert to dtschema
tools/power/x86/intel-speed-select: v1.12 release
tools/power/x86/intel-speed-select: HFI support
tools/power/x86/intel-speed-select: OOB daemon mode
thermal: intel: hfi: INTEL_HFI_THERMAL depends on NET
thermal: netlink: Fix parameter type of thermal_genl_cpu_capability_event() stub
thermal: Replace acpi_bus_get_device()
...
|
||
Naveen Krishna Chatradhi
|
402576d980 |
Documentation: Add x86/amd_hsmp driver
This documentation for amd_hsmp driver explains how to use the device interface. Signed-off-by: Naveen Krishna Chatradhi <nchatrad@amd.com> Acked-by: Song Liu <song@kernel.org> Link: https://lore.kernel.org/r/20220222050501.18789-2-nchatrad@amd.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> |
||
|
Borislav Petkov
|
7f1b8e0d63 |
x86/mce: Remove the tolerance level control
This is pretty much unused and not really useful. What is more, all relevant MCA hardware has recoverable machine checks support so there's no real need to tweak MCA tolerance levels in order to *maybe* extend machine lifetime. So rip it out. Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lore.kernel.org/r/YcDq8PxvKtTENl/e@zn.tnic |
||
Fenghua Yu
|
83aa52ffed |
Documentation/x86: Update documentation for SVA (Shared Virtual Addressing)
Adjust the documentation to the new way how a PASID is being allocated, freed and fixed up. Based on a patch by Ashok Raj <ashok.raj@intel.com> [ bp: Massage commit message, fix htmldocs build warning ] Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Tony Luck <tony.luck@intel.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20220207230254.3342514-12-fenghua.yu@intel.com |
||
Ricardo Neri
|
4a960e8941 |
x86/Documentation: Describe the Intel Hardware Feedback Interface
Start a documentation file to describe the purpose and operation of Intel's Hardware Feedback Interface. Describe how this interface is used in Linux to relay performance and energy efficiency updates to userspace. Reviewed-by: Len Brown <len.brown@intel.com> Suggested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
||
|
Reinette Chatre
|
379e4de9e1 |
x86/sgx: Fix minor documentation issues
The SGX documentation has a few repeated or one-off issues: * Remove capitalization from regular words in the middle of a sentence. * Remove punctuation found in the middle of a sentence. * Fix name of SGX daemon to consistently be ksgxd. * Fix typo of SGX instruction: ENIT -> EINIT [ dhansen: tweaked subject and changelog ] Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Link: https://lkml.kernel.org/r/ab99a87368eef69e3fb96f073368becff3eff874.1635529506.git.reinette.chatre@intel.com |
||
|
Linus Torvalds
|
1654e95ee3 |
- Add the model number of a new, Raptor Lake CPU, to intel-family.h
- Do not log spurious corrected MCEs on SKL too, due to an erratum - Clarify the path of paravirt ops patches upstream - Add an optimization to avoid writing out AMX components to sigframes when former are in init state -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmGQ3CgACgkQEsHwGGHe VUoLAA/+NXRvcBHYkLaByT9f4OI6B79HzyguIBSfipYiw8ir0H7uEdV5FUCCUgCz egBRVFpOsXWt1teeuu6ViO+WBHncUxG/ryZ0ka35lri/3kuVYnugZExWDs4MrGR5 vehRXehOxYNRaYc3oLYjubSbxqF1nWz3WWfGfhiBKk0jT/S1T9tX6lsRXlKsJCgj M4x5aqBWP8HTbFQfqjdHwagNitmSKzgjZvMcC4UWcql33ZCycbjvRdrAzBtw7WRI UBvgxWVmeMoagu5fqEOoph1oSoFxWuFrweFUjnxJmT6uZrTsfF7BVgXkxdG6eYUy 2Xogcd4bPDBiRgbs0vPEog1tyyrKHOQ6p1pvksySKMPq6ULcSZ6hBpEZRpgr6Y9u 0jB3P6weQgCckx5Hd+iwvX1a+GvEuHSEqAE+j160wFyrsBS5Cir3P1WqthWaPd5I 3nH3h955PokUHPUioUhdf+8cfuP6h6K0nz1gdYI8GR8+fJHhEceT+pLLeyIxj/VM yr+bq+V7D6Cg62w3z3s9Dzg2XKpxStu1R9L1N/K8MtIGf6Uc7paL6xR27XxhmBp5 Y6bGZw0mxxFhp6AEsFWo3rwLL9Dl5DmFcfgUHHpPK5VP0pVWp48Uapx2Hi2/JzAo c1o4UkPQa/EZJBPTklmGkS1JNp/2TsEL4Fw7sew+j7DWtsJpCfk= =Ge2T -----END PGP SIGNATURE----- Merge tag 'x86_urgent_for_v5.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Borislav Petkov: - Add the model number of a new, Raptor Lake CPU, to intel-family.h - Do not log spurious corrected MCEs on SKL too, due to an erratum - Clarify the path of paravirt ops patches upstream - Add an optimization to avoid writing out AMX components to sigframes when former are in init state * tag 'x86_urgent_for_v5.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpu: Add Raptor Lake to Intel family x86/mce: Add errata workaround for Skylake SKX37 MAINTAINERS: Add some information to PARAVIRT_OPS entry x86/fpu: Optimize out sigframe xfeatures when in init state |
||
|
Linus Torvalds
|
95faf6ba65 |
Driver core changes for 5.16-rc1
Here is the big set of driver core changes for 5.16-rc1.
All of these have been in linux-next for a while now with no reported
problems.
Included in here are:
- big update and cleanup of the sysfs abi documentation files
and scripts from Mauro. We are almost at the place where we
can properly check that the running kernel's sysfs abi is
documented fully.
- firmware loader updates
- dyndbg updates
- kernfs cleanups and fixes from Christoph
- device property updates
- component fix
- other minor driver core cleanups and fixes
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCYYPbjQ8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+ync9gCfXKMUI1GAnCfJWAwTdTcd18q5akoAoMw32/AH
0yh5TjAWFyFd7xz5d7qs
=itsC
-----END PGP SIGNATURE-----
Merge tag 'driver-core-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the big set of driver core changes for 5.16-rc1.
All of these have been in linux-next for a while now with no reported
problems.
Included in here are:
- big update and cleanup of the sysfs abi documentation files and
scripts from Mauro. We are almost at the place where we can
properly check that the running kernel's sysfs abi is documented
fully.
- firmware loader updates
- dyndbg updates
- kernfs cleanups and fixes from Christoph
- device property updates
- component fix
- other minor driver core cleanups and fixes"
* tag 'driver-core-5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (122 commits)
device property: Drop redundant NULL checks
x86/build: Tuck away built-in firmware under FW_LOADER
vmlinux.lds.h: wrap built-in firmware support under FW_LOADER
firmware_loader: move struct builtin_fw to the only place used
x86/microcode: Use the firmware_loader built-in API
firmware_loader: remove old DECLARE_BUILTIN_FIRMWARE()
firmware_loader: formalize built-in firmware API
component: do not leave master devres group open after bind
dyndbg: refine verbosity 1-4 summary-detail
gpiolib: acpi: Replace custom code with device_match_acpi_handle()
i2c: acpi: Replace custom function with device_match_acpi_handle()
driver core: Provide device_match_acpi_handle() helper
dyndbg: fix spurious vNpr_info change
dyndbg: no vpr-info on empty queries
dyndbg: vpr-info on remove-module complete, not starting
device property: Add missed header in fwnode.h
Documentation: dyndbg: Improve cli param examples
dyndbg: Remove support for ddebug_query param
dyndbg: make dyndbg a known cli param
dyndbg: show module in vpr-info in dd-exec-queries
...
|
||
Dave Hansen
|
30d02551ba |
x86/fpu: Optimize out sigframe xfeatures when in init state
tl;dr: AMX state is ~8k. Signal frames can have space for this
~8k and each signal entry writes out all 8k even if it is zeros.
Skip writing zeros for AMX to speed up signal delivery by about
4% overall when AMX is in its init state.
This is a user-visible change to the sigframe ABI.
== Hardware XSAVE Background ==
XSAVE state components may be tracked by the processor as being
in their initial configuration. Software can detect which
features are in this configuration by looking at the XSTATE_BV
field in an XSAVE buffer or with the XGETBV(1) instruction.
Both the XSAVE and XSAVEOPT instructions enumerate features s
being in the initial configuration via the XSTATE_BV field in the
XSAVE header, However, XSAVEOPT declines to actually write
features in their initial configuration to the buffer. XSAVE
writes the feature unconditionally, regardless of whether it is
in the initial configuration or not.
Basically, XSAVE users never need to inspect XSTATE_BV to
determine if the feature has been written to the buffer.
XSAVEOPT users *do* need to inspect XSTATE_BV. They might also
need to clear out the buffer if they want to make an isolated
change to the state, like modifying one register.
== Software Signal / XSAVE Background ==
Signal frames have historically been written with XSAVE itself.
Each state is written in its entirety, regardless of being in its
initial configuration.
In other words, the signal frame ABI uses the XSAVE behavior, not
the XSAVEOPT behavior.
== Problem ==
This means that any application which has acquired permission to
use AMX via ARCH_REQ_XCOMP_PERM will write 8k of state to the
signal frame. This 8k write will occur even when AMX was in its
initial configuration and software *knows* this because of
XSTATE_BV.
This problem also exists to a lesser degree with AVX-512 and its
2k of state. However, AVX-512 use does not require
ARCH_REQ_XCOMP_PERM and is more likely to have existing users
which would be impacted by any change in behavior.
== Solution ==
Stop writing out AMX xfeatures which are in their initial state
to the signal frame. This effectively makes the signal frame
XSAVE buffer look as if it were written with a combination of
XSAVEOPT and XSAVE behavior. Userspace which handles XSAVEOPT-
style buffers should be able to handle this naturally.
For now, include only the AMX xfeatures: XTILE and XTILEDATA in
this new behavior. These require new ABI to use anyway, which
makes their users very unlikely to be broken. This XSAVEOPT-like
behavior should be expected for all future dynamic xfeatures. It
may also be extended to legacy features like AVX-512 in the
future.
Only attempt this optimization on systems with dynamic features.
Disable dynamic feature support (XFD) if XGETBV1 is unavailable
by adding a CPUID dependency.
This has been measured to reduce the *overall* cycle cost of
signal delivery by about 4%.
Fixes:
|
||
|
Linus Torvalds
|
624ad333d4 |
This is a relatively unexciting cycle for documentation.
- Some small scripts/kerneldoc fixes - More Chinese translation work, but at a much reduced rate. - The tip-tree maintainer's handbook ...plus the usual array of build fixes, typo fixes, etc. -----BEGIN PGP SIGNATURE----- iQFDBAABCAAtFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAmGBqbYPHGNvcmJldEBs d24ubmV0AAoJEBdDWhNsDH5YzMoH+wQwUbILvf4FB9h6l0qhbPnvcLMJtDiuIGSu Ivfc1t+Vh7/waehaYfn9erCNps6oE13Arsy0DDFZcr6vbjXFO5clFoh5jvSJsk+G zTXzZNB99SoJcZw9r8F7aJDbQNJfSXoyTTOg1mSeXNo+nkBFTSWO7QwCx5M2obaT 76+r8HQpnEYmrGePsOXriV4aOP+yJxuGgkPb+VPlPtQhA7v6dzo5hmoh5tPIzCLd Fz8ek4aAm9sPEtu1UUoA+7MALZHTFwPv6aSAuyVeNfF/UBL6M4iAwusQyLdPFfoj JPO7f+1h6a8jKTfTWGjPI3o33DtU/8nc6DgnuBaXBTKW8Dl5Exk= =q37Q -----END PGP SIGNATURE----- Merge tag 'docs-5.16' of git://git.lwn.net/linux Pull documentation updates from Jonathan Corbet: "This is a relatively unexciting cycle for documentation. - Some small scripts/kerneldoc fixes - More Chinese translation work, but at a much reduced rate. - The tip-tree maintainer's handbook ...plus the usual array of build fixes, typo fixes, etc" * tag 'docs-5.16' of git://git.lwn.net/linux: (53 commits) kernel-doc: support DECLARE_PHY_INTERFACE_MASK() docs/zh_CN: add core-api xarray translation docs/zh_CN: add core-api assoc_array translation speakup: Fix typo in documentation "boo" -> "boot" docs: submitting-patches: make section about the Link: tag more explicit docs: deprecated.rst: Clarify open-coded arithmetic with literals scripts: documentation-file-ref-check: fix bpf selftests path scripts: documentation-file-ref-check: ignore hidden files coding-style.rst: trivial: fix location of driver model macros docs: f2fs: fix text alignment docs/zh_CN add PCI pci.rst translation docs/zh_CN add PCI index.rst translation docs: translations: zh_CN: memory-hotplug.rst: fix a typo docs: translations: zn_CN: irq-affinity.rst: add a missing extension block: add documentation for inflight scripts: kernel-doc: Ignore __alloc_size() attribute docs: pdfdocs: Adjust \headheight for fancyhdr docs: UML: user_mode_linux_howto_v2 edits docs: use the lore redirector everywhere docs: proc.rst: mountinfo: align columns ... |
||
|
Linus Torvalds
|
879dbe9ffe |
Add a SGX_IOC_VEPC_REMOVE ioctl to the /dev/sgx_vepc virt interface with
which EPC pages can be put back into their uninitialized state without having to reopen /dev/sgx_vepc, which could not be possible anymore after startup due to security policies. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmF/x7AACgkQEsHwGGHe VUqHXA//YWrukmJ5PQZwWqkXGo6h42JWhIdNfSC2c1SVdz1cioGUCCswALTX4g8l MYYf3eN12GJ296jPh7m9bz8JvlYjdavSm3Y1yzHIjuQ3q6qywHIuYTbsrMD7waUD PkcY1TTYgNJ2+f0AgsC4GZhlcpf9g5DqiftW6wvExx5tLUNsVu3Y3gZy/+fajP4f s/TMjcdr2QmPsjun00KfoIY4/z0u8LkyRMSwyoxSV6wYdL6rRtfYFWsbEUS+W6Nw /VJ0IKl+aBQ1ztsDc4M5h1uy9II2M/Row5k6JjyrdG4X8D6ACSG7cho6qcMjXgcP Gac7Im5IyjPEorxqXAgJiMoAl9lU9a2JMVZqPtihYsQW/ygMTdpzP9sBpcZPMevc gxQD4gyixwzUa3cyVDzTPBdk/DEuGc2nwn2k9nPvmNxKMonX1oLEiP7hu265mvet 56DtwKJF9ddtpepO2zFCg1qX+eZnTuhuZNCPsm/pmdGgzI8cyLznho33OgUSZEQY c1UisT7HXNRVC/1Q8VBDTU/D9LtIk+2+Q5lQkcNeftI5PYKTXIVddkOkqJ4GhGWJ 9EasA4UtnhvsLzJ76gxxuUf677ns+1TCo65e7Hu1+X0eTmBJK3boe3aMHvJeHEWH Asd+SMkYWfxAlW/arAYhR2JgT9wgEH3pSx4eXnpGwpeValxBPRs= =1UYy -----END PGP SIGNATURE----- Merge tag 'x86_sgx_for_v5.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 SGX updates from Borislav Petkov: "Add a SGX_IOC_VEPC_REMOVE ioctl to the /dev/sgx_vepc virt interface with which EPC pages can be put back into their uninitialized state without having to reopen /dev/sgx_vepc, which could not be possible anymore after startup due to security policies" * tag 'x86_sgx_for_v5.16_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/sgx/virt: implement SGX_IOC_VEPC_REMOVE ioctl x86/sgx/virt: extract sgx_vepc_remove_page |
||
Chang S. Bae
|
d7a9590f60 |
Documentation/x86: Add documentation for using dynamic XSTATE features
Explain how dynamic XSTATE features can be enabled via the architecture-specific prctl() along with dynamic sigframe size and first use trap handling. Fix: Documentation/x86/xstate.rst:15: WARNING: Title underline too short. as reported by Stephen Rothwell <sfr@canb.auug.org.au> Originally-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20211026091157.16711-1-chang.seok.bae@intel.com |
||
Paolo Bonzini
|
ae095b16fc |
x86/sgx/virt: implement SGX_IOC_VEPC_REMOVE ioctl
For bare-metal SGX on real hardware, the hardware provides guarantees SGX state at reboot. For instance, all pages start out uninitialized. The vepc driver provides a similar guarantee today for freshly-opened vepc instances, but guests such as Windows expect all pages to be in uninitialized state on startup, including after every guest reboot. Some userspace implementations of virtual SGX would rather avoid having to close and reopen the /dev/sgx_vepc file descriptor and re-mmap the virtual EPC. For example, they could sandbox themselves after the guest starts and forbid further calls to open(), in order to mitigate exploits from untrusted guests. Therefore, add a ioctl that does this with EREMOVE. Userspace can invoke the ioctl to bring its vEPC pages back to uninitialized state. There is a possibility that some pages fail to be removed if they are SECS pages, and the child and SECS pages could be in separate vEPC regions. Therefore, the ioctl returns the number of EREMOVE failures, telling userspace to try the ioctl again after it's done with all vEPC regions. A more verbose description of the correct usage and the possible error conditions is documented in sgx.rst. Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Link: https://lkml.kernel.org/r/20211021201155.1523989-3-pbonzini@redhat.com |
||
Thorsten Leemhuis
|
a9d85efb25 |
docs: use the lore redirector everywhere
Change all links from using the lkml redirector to the lore redirector, as the kernel.org admin recently indicated: we shouldn't be using lkml.kernel.org anymore because the domain can create confusion, as it indicates it is only valid for messages sent to the LKML; the convention has been to use https://lore.kernel.org/r/msgid for this reason. In this process also change three links from using http to https. Link: https://lore.kernel.org/r/20211006170025.qw3glxvocczfuhar@meerkat.local CC: Thomas Gleixner <tglx@linutronix.de> CC: Ingo Molnar <mingo@redhat.com> CC: Borislav Petkov <bp@alien8.de> CC: Hu Haowen <src.res@email.cn> CC: Alex Shi <alexs@kernel.org> CC: Federico Vaga <federico.vaga@vaga.pv.it> Signed-off-by: Thorsten Leemhuis <linux@leemhuis.info> Reviewed-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org> Link: https://lore.kernel.org/r/5bb55bac6ba10fafab19bf2b21572dd0e2f8cea2.1633593385.git.linux@leemhuis.info Signed-off-by: Jonathan Corbet <corbet@lwn.net> |
||
Mauro Carvalho Chehab
|
edfc8730ba |
ABI: sysfs-mce: add a new ABI file
Reduce the gap of missing ABIs for Intel servers with MCE by adding a new ABI file. The contents of this file comes from: Documentation/x86/x86_64/machinecheck.rst Reviewed-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/801a26985e32589eb78ba4b728d3e19fdea18f04.1632994837.git.mchehab+huawei@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|
Linus Torvalds
|
0f4b9289ba |
Another collection of documentation patches, mostly fixes but also includes
another set of traditional Chinese translations. -----BEGIN PGP SIGNATURE----- iQFDBAABCAAtFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAmE5GNkPHGNvcmJldEBs d24ubmV0AAoJEBdDWhNsDH5Y4mcH/2xrLUmUO8Bys+1AotIH0B2rMs7TVdo8RVa1 qdOjngtrm3FTQLBjfsViSo3snue8wZr2zguOBOBCFVtMHDtjwE61kztjXxD8fhdH bC0S/H1LWqSogNFnKBubvdEH1gNMKYlPMjFTMlwNknWBvYp+6Oq9HA17zbXcz9Nw AdY5yEZ915r38WjClfnYw+lVY4XDEDhakggK65IXnfbd7hqAR1WJ/JpyuXWMN+3Z NJyB9ztRgU043zuHPWICxR0IxbGyESOYckykBuYf0/gUACQIu/LcWSqzY9bcAN3A W5Bw7Y4P70WNrcnVoH9poz7CltEkEARaRo3cLEJoz09a3+NvdDA= =95+F -----END PGP SIGNATURE----- Merge tag 'docs-5.15-2' of git://git.lwn.net/linux Pull more documentation updates from Jonathan Corbet: "Another collection of documentation patches, mostly fixes but also includes another set of traditional Chinese translations" * tag 'docs-5.15-2' of git://git.lwn.net/linux: docs: pdfdocs: Fix typo in CJK-language specific font settings docs: kernel-hacking: Remove inappropriate text docs/zh_TW: add translations for zh_TW/filesystems docs/zh_TW: add translations for zh_TW/cpu-freq docs/zh_TW: add translations for zh_TW/arm64 docs/zh_CN: Modify the translator tag and fix the wrong word Documentation/features/vm: correct huge-vmap APIs Documentation: block: blk-mq: Fix small typo in multi-queue docs Documentation: in_irq() cleanup Documentation: arm: marvell: Add 88F6825 model into list Documentation/process/maintainer-pgp-guide: Replace broken link to PGP path finder Documentation: locking: fix references Documentation: Update details of The Linux Kernel Module Programming Guide docs: x86: Remove obsolete information about x86_64 vmalloc() faulting Documentation/process/applying-patches: Activate linux-next man hyperlink |