| /linux/kernel/livepatch/ |
| H A D | shadow.c | 73 return shadow->obj == obj && shadow->id == id; in klp_shadow_match()
85 struct klp_shadow *shadow; in klp_shadow_get() local
92 if (klp_shadow_match(shadow, obj, id)) { in klp_shadow_get()
94 return shadow->data; in klp_shadow_get()
237 hash_del_rcu(&shadow->node); in klp_shadow_free_struct()
239 dtor(shadow->obj, shadow->data); in klp_shadow_free_struct()
240 kfree_rcu(shadow, rcu_head); in klp_shadow_free_struct()
255 struct klp_shadow *shadow; in klp_shadow_free() local
265 klp_shadow_free_struct(shadow, dtor); in klp_shadow_free()
285 struct klp_shadow *shadow; in klp_shadow_free_all() local
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| /linux/drivers/scsi/ |
| H A D | xen-scsifront.c | 197 info->shadow[id] = shadow; in scsifront_do_request()
308 shadow = info->shadow[id]; in scsifront_cdb_cmd_done()
309 sc = shadow->sc; in scsifront_cdb_cmd_done()
336 struct vscsifrnt_shadow *shadow = info->shadow[id]; in scsifront_sync_cmd_done() local
351 kfree(shadow); in scsifront_sync_cmd_done()
374 shadow = info->shadow[ring_rsp->rqid]; in scsifront_do_response()
502 seg = shadow->sg ? : shadow->seg; in map_data_for_request()
672 shadow = kzalloc(sizeof(*shadow), GFP_NOIO); in scsifront_action_handler()
673 if (!shadow) in scsifront_action_handler()
708 kfree(shadow); in scsifront_action_handler()
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| /linux/Documentation/livepatch/ |
| H A D | shadow-vars.rst | 24 (See the full API usage docbook notes in livepatch/shadow.c.)
30 meta-data and shadow-data:
37 - data[] - storage for shadow data
48 * klp_shadow_get() - retrieve a shadow variable data pointer
51 * klp_shadow_alloc() - allocate and add a new shadow variable
60 - allocate a new shadow variable
69 - return existing shadow variable
73 - allocate a new shadow variable
83 - free shadow variable
91 - free shadow variable
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| /linux/Documentation/arch/x86/ |
| H A D | shstk.rst | 14 CET introduces shadow stack and indirect branch tracking (IBT). A shadow stack
23 shadow stack and kernel IBT are supported.
103 if shadow stack is disabled.
130 the shadow stack stores only return addresses, a large shadow stack covers
135 shadow stack is enabled, the shadow stack specific state is pushed onto the
136 shadow stack. Today this is only the old SSP (shadow stack pointer), pushed
139 restorer address to the shadow stack to help userspace avoid a shadow stack
142 So the shadow stack signal frame format is as follows::
150 32 bit execution while shadow stack is enabled by the allocating shadow stacks
162 shadow access triggers a page fault with the shadow stack access bit set
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| /linux/mm/kmsan/ |
| H A D | init.c | 97 struct page *shadow, *origin; member
116 struct page *shadow, *origin; in kmsan_memblock_free_pages() local
118 if (!held_back[order].shadow) { in kmsan_memblock_free_pages()
119 held_back[order].shadow = page; in kmsan_memblock_free_pages()
126 shadow = held_back[order].shadow; in kmsan_memblock_free_pages()
128 kmsan_setup_meta(page, shadow, origin, order); in kmsan_memblock_free_pages()
130 held_back[order].shadow = NULL; in kmsan_memblock_free_pages()
168 struct page *page, *shadow, *origin; in do_collection() local
172 shadow = smallstack_pop(&collect); in do_collection()
216 if (held_back[i].shadow) in kmsan_memblock_discard()
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| H A D | shadow.c | 85 void *shadow; in kmsan_get_shadow_origin_ptr() local
98 if (!shadow) in kmsan_get_shadow_origin_ptr()
101 ret.shadow = shadow; in kmsan_get_shadow_origin_ptr()
108 ret.shadow = dummy_store_page; in kmsan_get_shadow_origin_ptr()
112 ret.shadow = dummy_load_page; in kmsan_get_shadow_origin_ptr()
175 struct page *shadow, *origin; in kmsan_alloc_page() local
182 shadow = shadow_page_for(page); in kmsan_alloc_page()
280 void *shadow, *origin; in kmsan_init_alloc_meta_for_range() local
289 if (!shadow || !origin) in kmsan_init_alloc_meta_for_range()
308 set_no_shadow_origin_page(&shadow[i]); in kmsan_setup_meta()
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| H A D | instrumentation.c | 143 *shadow = *(u64 *)(ctx->cstate.param_tls); in get_param0_metadata()
151 *(u64 *)(ctx->cstate.retval_tls) = shadow; in set_retval_metadata()
161 u64 shadow; in __msan_memmove() local
163 get_param0_metadata(&shadow, &origin); in __msan_memmove()
175 set_retval_metadata(shadow, origin); in __msan_memmove()
186 u64 shadow; in __msan_memcpy() local
188 get_param0_metadata(&shadow, &origin); in __msan_memcpy()
202 set_retval_metadata(shadow, origin); in __msan_memcpy()
213 u64 shadow; in __msan_memset() local
215 get_param0_metadata(&shadow, &origin); in __msan_memset()
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| H A D | hooks.c | 156 struct page *shadow, *origin; in kmsan_ioremap_page_range() local
166 shadow = alloc_pages(gfp_mask, 1); in kmsan_ioremap_page_range()
168 if (!shadow || !origin) { in kmsan_ioremap_page_range()
174 vmalloc_shadow(start + off + PAGE_SIZE), prot, &shadow, in kmsan_ioremap_page_range()
180 shadow = NULL; in kmsan_ioremap_page_range()
204 if (shadow) in kmsan_ioremap_page_range()
205 __free_pages(shadow, 1); in kmsan_ioremap_page_range()
224 struct page *shadow, *origin; in kmsan_iounmap_page_range() local
236 shadow = kmsan_vmalloc_to_page_or_null((void *)v_shadow); in kmsan_iounmap_page_range()
240 if (shadow) in kmsan_iounmap_page_range()
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| /linux/include/linux/ |
| H A D | scx200_gpio.h | 13 #define __SCx200_GPIO_SHADOW unsigned long *shadow = scx200_gpio_shadow+bank
16 #define __SCx200_GPIO_OUT __asm__ __volatile__("outsl":"=mS" (shadow):"d" (ioaddr), "0" (shadow))
46 set_bit(index, shadow); /* __set_bit()? */ in scx200_gpio_set_high()
57 clear_bit(index, shadow); /* __clear_bit()? */ in scx200_gpio_set_low()
69 set_bit(index, shadow); in scx200_gpio_set()
71 clear_bit(index, shadow); in scx200_gpio_set()
81 change_bit(index, shadow); in scx200_gpio_change()
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| /linux/drivers/gpio/ |
| H A D | gpio-janz-ttl.c | 60 u8 *shadow; in ttl_get_value() local
64 shadow = &mod->porta_shadow; in ttl_get_value()
66 shadow = &mod->portb_shadow; in ttl_get_value()
69 shadow = &mod->portc_shadow; in ttl_get_value()
74 ret = *shadow & BIT(offset); in ttl_get_value()
83 u8 *shadow; in ttl_set_value() local
87 shadow = &mod->porta_shadow; in ttl_set_value()
90 shadow = &mod->portb_shadow; in ttl_set_value()
100 *shadow |= BIT(offset); in ttl_set_value()
102 *shadow &= ~BIT(offset); in ttl_set_value()
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| H A D | gpio-mm-lantiq.c | 31 u16 shadow; /* shadow the latches state */ member
47 __raw_writew(chip->shadow, chip->mmchip.regs); in ltq_mm_apply()
65 chip->shadow |= (1 << offset); in ltq_mm_set()
67 chip->shadow &= ~(1 << offset); in ltq_mm_set()
104 u32 shadow; in ltq_mm_probe() local
118 if (!of_property_read_u32(pdev->dev.of_node, "lantiq,shadow", &shadow)) in ltq_mm_probe()
119 chip->shadow = shadow; in ltq_mm_probe()
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| H A D | gpio-stp-xway.c | 84 u32 shadow; /* shadow the shift registers state */ member
121 chip->shadow |= BIT(gpio); in xway_stp_set()
123 chip->shadow &= ~BIT(gpio); in xway_stp_set()
124 xway_stp_w32(chip->virt, chip->shadow, XWAY_STP_CPU0); in xway_stp_set()
235 u32 shadow, groups, dsl, phy; in xway_stp_probe() local
258 if (!of_property_read_u32(pdev->dev.of_node, "lantiq,shadow", &shadow)) in xway_stp_probe()
259 chip->shadow = shadow; in xway_stp_probe()
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| H A D | gpio-latch.c | 58 unsigned long *shadow; member
81 assign_bit(offset, priv->shadow, val); in gpio_latch_set_unlocked()
85 test_bit(latch * priv->n_latched_gpios + i, priv->shadow)); in gpio_latch_set_unlocked()
160 priv->shadow = devm_bitmap_zalloc(&pdev->dev, n_latches * priv->n_latched_gpios, in gpio_latch_probe()
162 if (!priv->shadow) in gpio_latch_probe()
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| /linux/fs/nilfs2/ |
| H A D | mdt.c | 479 if (shadow) { in nilfs_mdt_clear()
480 struct inode *s_inode = shadow->inode; in nilfs_mdt_clear()
482 shadow->inode = NULL; in nilfs_mdt_clear()
516 struct nilfs_shadow_map *shadow) in nilfs_mdt_setup_shadow_map() argument
521 INIT_LIST_HEAD(&shadow->frozen_buffers); in nilfs_mdt_setup_shadow_map()
527 shadow->inode = s_inode; in nilfs_mdt_setup_shadow_map()
528 mi->mi_shadow = shadow; in nilfs_mdt_setup_shadow_map()
540 struct nilfs_shadow_map *shadow = mi->mi_shadow; in nilfs_mdt_save_to_shadow_map() local
541 struct inode *s_inode = shadow->inode; in nilfs_mdt_save_to_shadow_map()
580 &shadow->frozen_buffers); in nilfs_mdt_freeze_buffer()
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| /linux/mm/kasan/ |
| H A D | report_sw_tags.c | 51 u8 *shadow; in kasan_get_alloc_size() local
62 shadow = (u8 *)kasan_mem_to_shadow(object); in kasan_get_alloc_size()
64 if (*shadow != KASAN_TAG_INVALID) in kasan_get_alloc_size()
68 shadow++; in kasan_get_alloc_size()
81 u8 *shadow = (u8 *)kasan_mem_to_shadow(addr); in kasan_print_tags() local
83 pr_err("Pointer tag: [%02x], memory tag: [%02x]\n", addr_tag, *shadow); in kasan_print_tags()
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| H A D | sw_tags.c | 77 u8 *shadow_first, *shadow_last, *shadow; in kasan_check_range() local
113 for (shadow = shadow_first; shadow <= shadow_last; shadow++) { in kasan_check_range()
114 if (*shadow != tag) { in kasan_check_range()
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| H A D | report_generic.c | 49 u8 *shadow; in kasan_get_alloc_size() local
60 shadow = (u8 *)kasan_mem_to_shadow(object); in kasan_get_alloc_size()
62 if (*shadow == 0) in kasan_get_alloc_size()
64 else if (*shadow >= 1 && *shadow <= KASAN_GRANULE_SIZE - 1) in kasan_get_alloc_size()
65 return size + *shadow; in kasan_get_alloc_size()
68 shadow++; in kasan_get_alloc_size()
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| /linux/drivers/block/ |
| H A D | xen-blkfront.c | 190 struct blk_shadow shadow[]; member
304 rinfo->shadow[id].request = NULL; in add_id_to_freelist()
543 rinfo->shadow[id].request = req; in blkif_ring_get_request()
611 struct blk_shadow *shadow = &rinfo->shadow[setup->id]; in blkif_setup_rw_req_grant() local
1247 if (!rinfo->shadow[i].request) in blkif_free_ring()
1280 kvfree(rinfo->shadow[i].sg); in blkif_free_ring()
1281 rinfo->shadow[i].sg = NULL; in blkif_free_ring()
2074 struct blk_shadow *shadow = rinfo->shadow; in blkfront_resume() local
2078 if (!shadow[j].request) in blkfront_resume()
2236 kvfree(rinfo->shadow[i].sg); in blkfront_setup_indirect()
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| /linux/mm/ |
| H A D | workingset.c | 210 static void unpack_shadow(void *shadow, int *memcgidp, pg_data_t **pgdat, in unpack_shadow() argument
213 unsigned long entry = xa_to_value(shadow); in unpack_shadow()
271 unpack_shadow(shadow, &memcg_id, &pgdat, token, workingset); in lru_gen_test_recent()
280 static void lru_gen_refault(struct folio *folio, void *shadow) in lru_gen_refault() argument
340 static void lru_gen_refault(struct folio *folio, void *shadow) in lru_gen_refault() argument
418 bool workingset_test_recent(void *shadow, bool file, bool *workingset) in workingset_test_recent() argument
432 bool recent = lru_gen_test_recent(shadow, file, in workingset_test_recent()
440 unpack_shadow(shadow, &memcgid, &pgdat, &eviction, workingset); in workingset_test_recent()
530 void workingset_refault(struct folio *folio, void *shadow) in workingset_refault() argument
540 lru_gen_refault(folio, shadow); in workingset_refault()
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| /linux/Documentation/dev-tools/ |
| H A D | kmsan.rst | 125 KMSAN shadow memory
131 setting its shadow bytes to ``0xff``) is called poisoning, marking it
132 initialized (setting the shadow bytes to ``0x00``) is called unpoisoning.
141 ``mm/kmsan/`` to persist shadow values.
145 When a value is read from memory, its shadow memory is also obtained and
148 shadow of the result depending on those values and their shadows.
156 In this case the shadow of ``a`` is ``0``, shadow of ``b`` is ``0xffffffff``,
233 void *shadow, *origin;
309 For each use of a value the compiler emits a shadow check that calls
377 struct page *shadow, *origin;
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| /linux/drivers/ps3/ |
| H A D | ps3-lpm.c | 128 struct ps3_lpm_shadow_regs shadow; member
394 return lpm_priv->shadow.pm_control; in ps3_read_pm()
398 return lpm_priv->shadow.pm_start_stop; in ps3_read_pm()
409 return lpm_priv->shadow.group_control; in ps3_read_pm()
411 return lpm_priv->shadow.debug_bus_control; in ps3_read_pm()
451 lpm_priv->shadow.group_control = val; in ps3_write_pm()
459 lpm_priv->shadow.debug_bus_control = val; in ps3_write_pm()
465 if (val != lpm_priv->shadow.pm_control) in ps3_write_pm()
471 lpm_priv->shadow.pm_control = val; in ps3_write_pm()
483 lpm_priv->shadow.pm_start_stop = val; in ps3_write_pm()
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| /linux/samples/livepatch/ |
| H A D | Makefile | 3 obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-shadow-mod.o
4 obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-shadow-fix1.o
5 obj-$(CONFIG_SAMPLE_LIVEPATCH) += livepatch-shadow-fix2.o
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| /linux/drivers/gpu/drm/amd/amdgpu/ |
| H A D | amdgpu_vm_sdma.c | 44 if (table->shadow) in amdgpu_vm_sdma_map_table()
45 r = amdgpu_ttm_alloc_gart(&table->shadow->tbo); in amdgpu_vm_sdma_map_table()
271 if (vmbo->shadow) in amdgpu_vm_sdma_update()
272 amdgpu_vm_sdma_set_ptes(p, vmbo->shadow, pe, addr, in amdgpu_vm_sdma_update()
281 (vmbo->shadow ? 2 : 1); in amdgpu_vm_sdma_update()
296 if (vmbo->shadow) in amdgpu_vm_sdma_update()
297 amdgpu_vm_sdma_copy_ptes(p, vmbo->shadow, pe, nptes); in amdgpu_vm_sdma_update()
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| /linux/drivers/usb/host/ |
| H A D | xen-hcd.c | 574 info->shadow[id].urb = NULL; in xenhcd_add_id_to_freelist()
718 struct usb_shadow *shadow = info->shadow + id; in xenhcd_gnttab_done() local
722 if (!shadow->in_flight) { in xenhcd_gnttab_done()
726 shadow->in_flight = false; in xenhcd_gnttab_done()
738 shadow->req.nr_buffer_segs = 0; in xenhcd_gnttab_done()
789 req = &info->shadow[id].req; in xenhcd_do_request()
807 *req = info->shadow[id].req; in xenhcd_do_request()
810 info->shadow[id].urb = urb; in xenhcd_do_request()
862 info->shadow[req_id].urb = NULL; in xenhcd_cancel_all_enqueued_urbs()
1490 info->shadow[i].req.id = i + 1; in xenhcd_create_hcd()
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| /linux/Documentation/virt/kvm/x86/ |
| H A D | mmu.rst | 4 The x86 kvm shadow mmu
55 spte shadow pte (referring to pfns)
152 The level in the shadow paging hierarchy that this shadow page belongs to.
166 so multiple shadow pages are needed to shadow one guest page.
228 at the shadow page structure.
340 - walk shadow page table
386 - look up new shadow roots
387 - synchronize newly reachable shadow pages
392 - look up new shadow roots
393 - synchronize newly reachable shadow pages
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