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WSL2-Linux-Kernel
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WSL2-Linux-Kernel/arch/x86/mm
История
Linus Torvalds 22b8cc3e78 Add support for new Linear Address Masking CPU feature. This is similar 
to ARM's Top Byte Ignore and allows userspace to store metadata in some
 bits of pointers without masking it out before use.
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Merge tag 'x86_mm_for_6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 LAM (Linear Address Masking) support from Dave Hansen:
 "Add support for the new Linear Address Masking CPU feature.

  This is similar to ARM's Top Byte Ignore and allows userspace to store
  metadata in some bits of pointers without masking it out before use"

* tag 'x86_mm_for_6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm/iommu/sva: Do not allow to set FORCE_TAGGED_SVA bit from outside
  x86/mm/iommu/sva: Fix error code for LAM enabling failure due to SVA
  selftests/x86/lam: Add test cases for LAM vs thread creation
  selftests/x86/lam: Add ARCH_FORCE_TAGGED_SVA test cases for linear-address masking
  selftests/x86/lam: Add inherit test cases for linear-address masking
  selftests/x86/lam: Add io_uring test cases for linear-address masking
  selftests/x86/lam: Add mmap and SYSCALL test cases for linear-address masking
  selftests/x86/lam: Add malloc and tag-bits test cases for linear-address masking
  x86/mm/iommu/sva: Make LAM and SVA mutually exclusive
  iommu/sva: Replace pasid_valid() helper with mm_valid_pasid()
  mm: Expose untagging mask in /proc/$PID/status
  x86/mm: Provide arch_prctl() interface for LAM
  x86/mm: Reduce untagged_addr() overhead for systems without LAM
  x86/uaccess: Provide untagged_addr() and remove tags before address check
  mm: Introduce untagged_addr_remote()
  x86/mm: Handle LAM on context switch
  x86: CPUID and CR3/CR4 flags for Linear Address Masking
  x86: Allow atomic MM_CONTEXT flags setting
  x86/mm: Rework address range check in get_user() and put_user()
 		2023-04-28 09:43:49 -07:00
..
pat - Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of 2023-04-27 19:42:02 -07:00
Makefile x86: kmsan: handle CPU entry area 2022-10-03 14:03:26 -07:00
amdtopology.c x86/mm: Replace nodes_weight() with nodes_empty() where appropriate 2022-04-10 22:35:38 +02:00
cpu_entry_area.c x86/mm: Do not shuffle CPU entry areas without KASLR 2023-03-22 10:42:47 -07:00
debug_pagetables.c x86/mm/dump_pagetables: remove MODULE_LICENSE in non-modules 2023-04-13 13:13:54 -07:00
dump_pagetables.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
extable.c x86: simplify load_unaligned_zeropad() implementation 2022-08-16 11:03:38 -07:00
fault.c x86/mm: try VMA lock-based page fault handling first 2023-04-05 20:03:01 -07:00
highmem_32.c x86/mm/highmem: Use generic kmap atomic implementation 2020-11-06 23:14:55 +01:00
hugetlbpage.c arch/x86/mm/hugetlbpage.c: pud_huge() returns 0 when using 2-level paging 2022-11-08 15:57:25 -08:00
ident_map.c x86/mm/ident_map: Check for errors from ident_pud_init() 2020-10-28 14:48:30 +01:00
init.c Add support for new Linear Address Masking CPU feature. This is similar 2023-04-28 09:43:49 -07:00
init_32.c x86: mm: rename __is_kernel_text() to is_x86_32_kernel_text() 2021-11-09 10:02:51 -08:00
init_64.c mm/sparse-vmemmap: generalise vmemmap_populate_hugepages() 2022-12-11 18:12:12 -08:00
iomap_32.c io-mapping: Cleanup atomic iomap 2020-11-06 23:14:58 +01:00
ioremap.c x86/ioremap: Add hypervisor callback for private MMIO mapping in coco VM 2023-03-26 23:42:40 +02:00
kasan_init_64.c x86/kasan: Populate shadow for shared chunk of the CPU entry area 2022-12-15 10:37:28 -08:00
kaslr.c x86: Fix various typos in comments 2021-03-18 15:31:53 +01:00
kmmio.c x86/mm/kmmio: Remove redundant preempt_disable() 2022-12-12 10:54:48 -05:00
kmsan_shadow.c x86: kmsan: handle CPU entry area 2022-10-03 14:03:26 -07:00
maccess.c x86: Share definition of __is_canonical_address() 2022-02-02 13:11:42 +01:00
mem_encrypt.c virtio: replace arch_has_restricted_virtio_memory_access() 2022-06-06 08:22:01 +02:00
mem_encrypt_amd.c x86/mm: Handle decryption/re-encryption of bss_decrypted consistently 2023-03-27 09:23:21 +02:00
mem_encrypt_boot.S x86/mm: Remove P*D_PAGE_MASK and P*D_PAGE_SIZE macros 2022-12-15 10:37:27 -08:00
mem_encrypt_identity.c x86/mm: Fix use of uninitialized buffer in sme_enable() 2023-03-16 12:22:25 +01:00
mm_internal.h x86/mm: thread pgprot_t through init_memory_mapping() 2020-04-10 15:36:21 -07:00
mmap.c x86/mm/mmap: Fix -Wmissing-prototypes warnings 2020-04-22 20:19:48 +02:00
mmio-mod.c x86: Replace cpumask_weight() with cpumask_empty() where appropriate 2022-04-10 22:35:38 +02:00
numa.c x86/numa: Use cpumask_available instead of hardcoded NULL check 2022-08-03 11:44:57 +02:00
numa_32.c x86/mm: Drop deprecated DISCONTIGMEM support for 32-bit 2020-05-28 18:34:30 +02:00
numa_64.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
numa_emulation.c x86/mm: Replace nodes_weight() with nodes_empty() where appropriate 2022-04-10 22:35:38 +02:00
numa_internal.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pf_in.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
pf_in.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
pgprot.c x86/mm: move protection_map[] inside the platform 2022-07-17 17:14:38 -07:00
pgtable.c mm/pgtable: Fix multiple -Wstringop-overflow warnings 2022-12-01 08:50:38 -08:00
pgtable_32.c mm: remove unneeded includes of <asm/pgalloc.h> 2020-08-07 11:33:26 -07:00
physaddr.c mm, x86/mm: Untangle address space layout definitions from basic pgtable type definitions 2019-12-10 10:12:55 +01:00
physaddr.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pkeys.c x86/pkeys: Clarify PKRU_AD_KEY macro 2022-06-07 16:06:33 -07:00
pti.c x86/mm: Remove P*D_PAGE_MASK and P*D_PAGE_SIZE macros 2022-12-15 10:37:27 -08:00
srat.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
testmmiotrace.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
tlb.c Add support for new Linear Address Masking CPU feature. This is similar 2023-04-28 09:43:49 -07:00