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OpenCloudOS-Kernel/mm
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Chen Zhuo ff6b869118 kernel/fork: Initialize mm's PASID 
commit a6cbd44093 upstream.

A new mm doesn't have a PASID yet when it's created. Initialize
the mm's PASID on fork() or for init_mm to INVALID_IOASID (-1).

INIT_PASID (0) is reserved for kernel legacy DMA PASID. It cannot be
allocated to a user process. Initializing the process's PASID to 0 may
cause confusion that's why the process uses the reserved kernel legacy
DMA PASID. Initializing the PASID to INVALID_IOASID (-1) explicitly
tells the process doesn't have a valid PASID yet.

Even though the only user of mm_pasid_init() is in fork.c, define it in
<linux/sched/mm.h> as the first of three mm/pasid life cycle functions
(init/set/drop) to keep these all together.

Suggested-by: Dave Hansen <dave.hansen@linux.intel.com>
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>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20220207230254.3342514-5-fenghua.yu@intel.com
Signed-off-by: Chen Zhuo <sagazchen@tencent.com>
Signed-off-by: Xinghui Li <korantli@tencent.com>
 		2024-06-11 21:12:36 +08:00
..
kasan ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
Kconfig ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
Kconfig.debug mm, page_owner, debug_pagealloc: save and dump freeing stack trace 2019-09-24 15:54:08 -07:00
Makefile mm: silence -Woverride-init/initializer-overrides 2019-09-24 15:54:10 -07:00
backing-dev.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
balloon_compaction.c mm/balloon_compaction: suppress allocation warnings 2019-09-04 07:42:01 -04:00
cleancache.c Driver Core and debugfs changes for 5.3-rc1 2019-07-12 12:24:03 -07:00
cma.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
cma.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cma_debug.c mm/cma_debug.c: fix the break condition in cma_maxchunk_get() 2019-05-14 09:47:45 -07:00
compaction.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
debug.c tkernel: add base tlinux kernel interfaces 2024-06-11 20:09:33 +08:00
debug_page_ref.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
dmapool.c mm: security: introduce init_on_alloc=1 and init_on_free=1 boot options 2019-07-12 11:05:46 -07:00
early_ioremap.c mm/early_ioremap: Fix boot hang with earlyprintk=efi,keep 2017-12-11 14:54:44 +01:00
fadvise.c fs: Export generic_fadvise() 2019-08-30 22:43:58 -07:00
failslab.c mm/failslab.c: by default, do not fail allocations with direct reclaim only 2019-07-12 11:05:43 -07:00
filemap.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
frame_vector.c mm: untag user pointers in get_vaddr_frames 2019-09-25 17:51:41 -07:00
frontswap.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 482 2019-06-19 17:09:52 +02:00
gup.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
gup_benchmark.c tkernel: add base tlinux kernel interfaces 2024-06-11 20:09:33 +08:00
highmem.c mm: convert totalram_pages and totalhigh_pages variables to atomic 2018-12-28 12:11:47 -08:00
hmm.c pagewalk: separate function pointers from iterator data 2019-09-07 04:28:04 -03:00
huge_memory.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
hugetlb.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
hugetlb_cgroup.c mm: hugetlb: switch to css_tryget() in hugetlb_cgroup_charge_cgroup() 2019-11-15 18:34:00 -08:00
hwpoison-inject.c hwpoison-inject: no need to check return value of debugfs_create functions 2019-06-03 15:39:40 +02:00
init-mm.c kernel/fork: Initialize mm's PASID 2024-06-11 21:12:36 +08:00
internal.h tkernel: add base tlinux kernel interfaces 2024-06-11 20:09:33 +08:00
interval_tree.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 248 2019-06-19 17:09:08 +02:00
khugepaged.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
kmemleak-test.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
kmemleak.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
ksm.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
list_lru.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
maccess.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
madvise.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
memblock.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
memcontrol.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
memfd.c mm: page cache: store only head pages in i_pages 2019-09-24 15:54:08 -07:00
memory-failure.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
memory.c x86/cpufeatures: Force disable X86_FEATURE_ENQCMD and remove update_pasid() 2024-06-11 21:05:59 +08:00
memory_hotplug.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
mempolicy.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
mempool.c docs/core-api/mm: fix return value descriptions in mm/ 2019-03-05 21:07:20 -08:00
memremap.c tkernel: add base tlinux kernel interfaces 2024-06-11 20:09:33 +08:00
memtest.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
migrate.c tkernel: add base tlinux kernel interfaces 2024-06-11 20:09:33 +08:00
mincore.c mm: untag user pointers passed to memory syscalls 2019-09-25 17:51:41 -07:00
mlock.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
mm_init.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
mmap.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
mmu_context.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
mmu_gather.c tkernel: add base tlinux kernel interfaces 2024-06-11 20:09:33 +08:00
mmu_notifier.c mm/mmu_notifiers: use the right return code for WARN_ON 2019-11-06 08:47:50 -08:00
mmzone.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mprotect.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
mremap.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
msync.c mm: untag user pointers passed to memory syscalls 2019-09-25 17:51:41 -07:00
nommu.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
oom_kill.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
page-writeback.c tkernel: add base tlinux kernel interfaces 2024-06-11 20:09:33 +08:00
page_alloc.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
page_counter.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
page_ext.c mm, page_owner: fix off-by-one error in __set_page_owner_handle() 2019-10-14 15:04:00 -07:00
page_idle.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
page_io.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
page_isolation.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
page_owner.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
page_poison.c mm/page_poison.c: fix a typo in a comment 2019-09-24 15:54:08 -07:00
page_vma_mapped.c mm: introduce page_size() 2019-09-24 15:54:08 -07:00
pagewalk.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
percpu-internal.h percpu: convert chunk hints to be based on pcpu_block_md 2019-03-13 12:25:31 -07:00
percpu-km.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428 2019-06-05 17:37:16 +02:00
percpu-stats.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428 2019-06-05 17:37:16 +02:00
percpu-vm.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428 2019-06-05 17:37:16 +02:00
percpu.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
pgtable-generic.c x86/mm: Page size aware flush_tlb_mm_range() 2018-10-09 16:51:11 +02:00
process_vm_access.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
readahead.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
rmap.c mm: include <linux/huge_mm.h> for is_vma_temporary_stack 2019-10-19 06:32:32 -04:00
rodata_test.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
shmem.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
shuffle.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
shuffle.h mm: maintain randomization of page free lists 2019-05-14 19:52:48 -07:00
slab.c tkernel: add base tlinux kernel interfaces 2024-06-11 20:09:33 +08:00
slab.h mm: slab: make page_cgroup_ino() to recognize non-compound slab pages properly 2019-11-06 08:47:50 -08:00
slab_common.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
slob.c mm, sl[aou]b: guarantee natural alignment for kmalloc(power-of-two) 2019-10-07 15:47:20 -07:00
slub.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
sparse-vmemmap.c mm/sparsemem: convert kmalloc_section_memmap() to populate_section_memmap() 2019-07-18 17:08:07 -07:00
sparse.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
swap.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
swap_cgroup.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
swap_slots.c mm, swap, get_swap_pages: use entry_size instead of cluster in parameter 2018-08-22 10:52:44 -07:00
swap_state.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
swapfile.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
truncate.c mm/thp: allow dropping THP from page cache 2019-10-19 06:32:33 -04:00
usercopy.c usercopy: Avoid HIGHMEM pfn warning 2019-09-17 15:20:17 -07:00
userfaultfd.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
util.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
vmacache.c mm: get rid of vmacache_flush_all() entirely 2018-09-13 15:18:04 -10:00
vmalloc.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
vmpressure.c mm/vmpressure.c: fix a signedness bug in vmpressure_register_event() 2019-10-07 15:47:19 -07:00
vmscan.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
vmstat.c tkernel: add base tlinux kernel interfaces 2024-06-11 20:09:33 +08:00
workingset.c mm: workingset: fix vmstat counters for shadow nodes 2019-08-13 16:06:52 -07:00
z3fold.c mm/z3fold.c: claim page in the beginning of free 2019-10-07 15:47:19 -07:00
zbud.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
zpool.c zpool: add malloc_support_movable to zpool_driver 2019-09-24 15:54:12 -07:00
zsmalloc.c ock: sync codes to ock 5.4.119-20.0009.21 2024-06-11 20:27:38 +08:00
zswap.c zswap: do not map same object twice 2019-09-24 15:54:12 -07:00