| /linux/kernel/livepatch/ |
| H A D | shadow.c | 70 static inline bool klp_shadow_match(struct klp_shadow *shadow, void *obj, in klp_shadow_match() argument
73 return shadow->obj == obj && shadow->id == id; in klp_shadow_match()
85 struct klp_shadow *shadow; in klp_shadow_get() local
89 hash_for_each_possible_rcu(klp_shadow_hash, shadow, node, in klp_shadow_get()
92 if (klp_shadow_match(shadow, obj, id)) { in klp_shadow_get()
94 return shadow->data; in klp_shadow_get()
234 static void klp_shadow_free_struct(struct klp_shadow *shadow, in klp_shadow_free_struct() argument
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()
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| /linux/drivers/scsi/ |
| H A D | xen-scsifront.c | 121 struct vscsifrnt_shadow *shadow[VSCSIIF_MAX_REQS]; member
163 info->shadow[id] = NULL; in _scsifront_put_rqid()
182 struct vscsifrnt_shadow *shadow) in scsifront_do_request() argument
186 struct scsi_cmnd *sc = shadow->sc; in scsifront_do_request()
197 info->shadow[id] = shadow; in scsifront_do_request()
198 shadow->rqid = id; in scsifront_do_request()
204 ring_req->act = shadow->act; in scsifront_do_request()
205 ring_req->ref_rqid = shadow->ref_rqid; in scsifront_do_request()
206 ring_req->nr_segments = shadow->nr_segments; in scsifront_do_request()
220 for (i = 0; i < (shadow->nr_segments & ~VSCSIIF_SG_GRANT); i++) in scsifront_do_request()
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| /linux/Documentation/livepatch/ |
| H A D | shadow-vars.rst | 6 additional "shadow" data with existing data structures. Shadow data is
8 unmodified. The shadow variable API described in this document is used
9 to allocate/add and remove/free shadow variables to/from their parents.
13 shadow data. The numeric identifier is a simple enumeration that may be
14 used to describe shadow variable version, class or type, etc. More
16 numeric id subsequently filters hashtable queries. Multiple shadow
24 (See the full API usage docbook notes in livepatch/shadow.c.)
26 A hashtable references all shadow variables. These references are
30 meta-data and shadow-data:
37 - data[] - storage for shadow data
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| /linux/mm/kmsan/ |
| H A D | init.c | 99 struct page *shadow, *origin; member
118 struct page *shadow, *origin; in kmsan_memblock_free_pages() local
120 if (!held_back[order].shadow) { in kmsan_memblock_free_pages()
121 held_back[order].shadow = page; in kmsan_memblock_free_pages()
128 shadow = held_back[order].shadow; in kmsan_memblock_free_pages()
130 kmsan_setup_meta(page, shadow, origin, order); in kmsan_memblock_free_pages()
132 held_back[order].shadow = NULL; in kmsan_memblock_free_pages()
170 struct page *page, *shadow, *origin; in do_collection() local
174 shadow = smallstack_pop(&collect); in do_collection()
176 kmsan_setup_meta(page, shadow, origin, collect.order); in do_collection()
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| H A D | shadow.c | 85 void *shadow; in kmsan_get_shadow_origin_ptr() local
97 shadow = kmsan_get_metadata(address, KMSAN_META_SHADOW); in kmsan_get_shadow_origin_ptr()
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()
173 struct page *shadow, *origin; in kmsan_alloc_page() local
180 shadow = shadow_page_for(page); in kmsan_alloc_page()
184 __memset(page_address(shadow), 0, PAGE_SIZE * pages); in kmsan_alloc_page()
193 __memset(page_address(shadow), -1, PAGE_SIZE * pages); in kmsan_alloc_page()
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| H A D | instrumentation.c | 139 static inline void get_param0_metadata(u64 *shadow, in get_param0_metadata() argument
144 *shadow = *(u64 *)(ctx->cstate.param_tls); in get_param0_metadata()
148 static inline void set_retval_metadata(u64 shadow, depot_stack_handle_t origin) in set_retval_metadata() argument
152 *(u64 *)(ctx->cstate.retval_tls) = shadow; in set_retval_metadata()
162 u64 shadow; in __msan_memmove() local
164 get_param0_metadata(&shadow, &origin); in __msan_memmove()
176 set_retval_metadata(shadow, origin); in __msan_memmove()
187 u64 shadow; in __msan_memcpy() local
189 get_param0_metadata(&shadow, &origin); in __msan_memcpy()
203 set_retval_metadata(shadow, origin); in __msan_memcpy()
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| H A D | hooks.c | 154 struct page *shadow, *origin; in kmsan_ioremap_page_range() local
164 shadow = alloc_pages(gfp_mask, 1); in kmsan_ioremap_page_range()
166 if (!shadow || !origin) { in kmsan_ioremap_page_range()
172 vmalloc_shadow(start + off + PAGE_SIZE), prot, &shadow, in kmsan_ioremap_page_range()
178 shadow = NULL; in kmsan_ioremap_page_range()
202 if (shadow) in kmsan_ioremap_page_range()
203 __free_pages(shadow, 1); in kmsan_ioremap_page_range()
222 struct page *shadow, *origin; in kmsan_iounmap_page_range() local
234 shadow = kmsan_vmalloc_to_page_or_null((void *)v_shadow); in kmsan_iounmap_page_range()
238 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()
94 shadow = &mod->portc_shadow; in ttl_set_value()
100 *shadow |= BIT(offset); in ttl_set_value()
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| /linux/drivers/gpu/drm/xe/ |
| H A D | xe_mem_pool.c | 41 struct xe_bo *shadow; member
74 struct xe_bo *shadow; in pool_shadow_init() local
77 xe_assert(xe, !pool->shadow); in pool_shadow_init()
88 shadow = xe_managed_bo_create_pin_map(xe, tile, in pool_shadow_init()
94 if (IS_ERR(shadow)) in pool_shadow_init()
95 return PTR_ERR(shadow); in pool_shadow_init()
97 pool->shadow = shadow; in pool_shadow_init()
195 xe_tile_assert(tile, pool->shadow); in xe_mem_pool_sync()
197 xe_map_memcpy_to(xe, &pool->shadow->vmap, 0, in xe_mem_pool_sync()
217 xe_tile_assert(tile, pool->shadow); in xe_mem_pool_swap_shadow_locked()
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| /linux/drivers/block/ |
| H A D | xen-blkfront.c | 190 struct blk_shadow shadow[]; member
291 rinfo->shadow_free = rinfo->shadow[free].req.u.rw.id; in get_id_from_freelist()
292 rinfo->shadow[free].req.u.rw.id = 0x0fffffee; /* debug */ in get_id_from_freelist()
299 if (rinfo->shadow[id].req.u.rw.id != id) in add_id_to_freelist()
301 if (rinfo->shadow[id].request == NULL) in add_id_to_freelist()
303 rinfo->shadow[id].req.u.rw.id = rinfo->shadow_free; in add_id_to_freelist()
304 rinfo->shadow[id].request = NULL; in add_id_to_freelist()
543 rinfo->shadow[id].request = req; in blkif_ring_get_request()
544 rinfo->shadow[id].status = REQ_PROCESSING; in blkif_ring_get_request()
545 rinfo->shadow[id].associated_id = NO_ASSOCIATED_ID; in blkif_ring_get_request()
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| /linux/drivers/irqchip/ |
| H A D | irq-econet-en751221.c | 74 u8 shadow; in econet_chmask() local
83 shadow = econet_intc.interrupt_shadows[hwirq]; in econet_chmask()
84 if (WARN_ON_ONCE(shadow == IS_SHADOW)) in econet_chmask()
86 else if (shadow != NOT_PERCPU && smp_processor_id() == 1) in econet_chmask()
87 hwirq = shadow; in econet_chmask()
219 u32 shadow = shadows[i + 1]; in get_shadow_interrupts() local
222 if (shadow > IRQ_COUNT) { in get_shadow_interrupts()
224 node, field, i + 1, shadow); in get_shadow_interrupts()
239 if (econet_intc.interrupt_shadows[shadow] != NOT_PERCPU) { in get_shadow_interrupts()
241 node, field, i + 1, shadow); in get_shadow_interrupts()
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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 | 79 u8 *shadow_first, *shadow_last, *shadow; in kasan_check_range() local
115 for (shadow = shadow_first; shadow <= shadow_last; shadow++) { in kasan_check_range()
116 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/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()
446 if (val != lpm_priv->shadow.group_control) in ps3_write_pm()
451 lpm_priv->shadow.group_control = val; in ps3_write_pm()
454 if (val != lpm_priv->shadow.debug_bus_control) 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()
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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)
87 direct mode; otherwise it operates in shadow mode (see below).
121 The principal data structure is the shadow page, 'struct kvm_mmu_page'. A
122 shadow page contains 512 sptes, which can be either leaf or nonleaf sptes. A
123 shadow page may contain a mix of leaf and nonleaf sptes.
126 is not related to a translation directly. It points to other shadow pages.
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.
167 For first-level shadow pages, role.quadrant can be 0 or 1 and denotes the
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| /linux/drivers/usb/host/ |
| H A D | xen-hcd.c | 84 struct usb_shadow shadow[XENUSB_URB_RING_SIZE]; member
565 info->shadow_free = info->shadow[free].req.id; in xenhcd_get_id_from_freelist()
566 info->shadow[free].req.id = 0x0fff; /* debug */ in xenhcd_get_id_from_freelist()
573 info->shadow[id].req.id = info->shadow_free; in xenhcd_add_id_to_freelist()
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()
728 nr_segs = shadow->req.nr_buffer_segs; in xenhcd_gnttab_done()
730 if (xenusb_pipeisoc(shadow->req.pipe)) in xenhcd_gnttab_done()
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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/arch/s390/kvm/ |
| H A D | trace-s390.h | 340 TP_PROTO(unsigned long start, unsigned long end, unsigned int shadow),
341 TP_ARGS(start, end, shadow),
346 __field(unsigned int, shadow)
352 __entry->shadow = shadow;
356 __entry->start, __entry->end, __entry->shadow)
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| /linux/drivers/gpu/drm/nouveau/nvkm/subdev/bios/ |
| H A D | shadow.c | 30 struct shadow { struct
39 shadow_fetch(struct nvkm_bios *bios, struct shadow *mthd, u32 upto) in shadow_fetch() argument
52 shadow_image(struct nvkm_bios *bios, int idx, u32 offset, struct shadow *mthd) in shadow_image()
110 shadow_method(struct nvkm_bios *bios, struct shadow *mthd, const char *name) in shadow_method()
177 struct shadow mthds[] = { in nvbios_shadow()
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| /linux/drivers/net/phy/ |
| H A D | bcm-phy-lib.h | 59 int bcm_phy_write_shadow(struct phy_device *phydev, u16 shadow,
61 int bcm_phy_read_shadow(struct phy_device *phydev, u16 shadow);
86 void bcm_phy_get_stats(struct phy_device *phydev, u64 *shadow,
88 void bcm_phy_update_stats_shadow(struct phy_device *phydev, u64 *shadow);
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| /linux/drivers/gpu/drm/qxl/ |
| H A D | qxl_display.c | 445 is_primary = qobj->shadow ? qobj->shadow->is_primary : qobj->is_primary; in qxl_framebuffer_surface_dirty()
680 primary = bo->shadow ? bo->shadow : bo; in qxl_primary_atomic_update()
707 if (bo->shadow) in qxl_primary_atomic_disable()
708 bo = bo->shadow; in qxl_primary_atomic_disable()
842 if (user_bo->shadow != qdev->dumb_shadow_bo) { in qxl_prepare_shadow()
843 if (user_bo->shadow) { in qxl_prepare_shadow()
844 qxl_bo_unpin(user_bo->shadow); in qxl_prepare_shadow()
846 (&user_bo->shadow->tbo.base); in qxl_prepare_shadow()
847 user_bo->shadow = NULL; in qxl_prepare_shadow()
850 user_bo->shadow = qdev->dumb_shadow_bo; in qxl_prepare_shadow()
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| /linux/drivers/media/i2c/ |
| H A D | tvaudio.c | 126 audiocmd shadow; member
163 chip->shadow.bytes[1] = val; in chip_write()
173 if (subaddr + 1 >= ARRAY_SIZE(chip->shadow.bytes)) { in chip_write()
182 chip->shadow.bytes[subaddr+1] = val; in chip_write()
204 val = (chip->shadow.bytes[1] & ~mask) | (val & mask); in chip_write_masked()
206 if (subaddr + 1 >= ARRAY_SIZE(chip->shadow.bytes)) { in chip_write_masked()
213 val = (chip->shadow.bytes[subaddr+1] & ~mask) | (val & mask); in chip_write_masked()
281 if (cmd->count + cmd->bytes[0] - 1 >= ARRAY_SIZE(chip->shadow.bytes)) { in chip_cmd()
296 chip->shadow.bytes[i+cmd->bytes[0]] = cmd->bytes[i]; in chip_cmd()
441 int t = chip->shadow.bytes[TDA9840_SW + 1] & ~0x7e; in tda9840_setaudmode()
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| /linux/drivers/media/dvb-frontends/ |
| H A D | itd1000.c | 77 itd1000_write_regs(state, (reg - 1) & 0xff, &state->shadow[(reg - 1) & 0xff], 1); in itd1000_read_reg()
90 state->shadow[r] = tmp; in itd1000_write_reg()
382 memset(state->shadow, 0xff, sizeof(state->shadow)); in itd1000_attach()
384 state->shadow[i] = itd1000_read_reg(state, i); in itd1000_attach()
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