| /linux/arch/arm64/kvm/vgic/ |
| H A D | vgic-its.c | 3 * GICv3 ITS emulation
28 static int vgic_its_save_tables_v0(struct vgic_its *its);
29 static int vgic_its_restore_tables_v0(struct vgic_its *its);
30 static int vgic_its_commit_v0(struct vgic_its *its);
71 * If this LPI is already mapped on another ITS, we increase its refcount
155 * struct vgic_its_abi - ITS abi ops and settings
159 * @save_tables: save the ITS tables into guest RAM
160 * @restore_tables: restore the ITS internal structs from tables
169 int (*save_tables)(struct vgic_its *its);
170 int (*restore_tables)(struct vgic_its *its);
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| H A D | vgic-debug.c | 289 * struct vgic_its_iter - Iterator for traversing VGIC ITS device tables.
294 * over the ITS device tables. It holds pointers to both the current device
307 * table, it was marked to indicate the end of iteration by setting its
319 * vgic_its_iter_next - Advances the iterator to the next entry in the ITS tables.
320 * @its: The VGIC ITS structure.
328 static void vgic_its_iter_next(struct vgic_its *its, struct vgic_its_iter *iter) in vgic_its_iter_next() argument
334 if (list_is_last(&dev->dev_list, &its->device_list)) { in vgic_its_iter_next()
356 * This function initializes the iterator to the beginning of the ITS tables
366 struct vgic_its *its = s->private; in vgic_its_debug_start() local
371 mutex_lock(&its->its_lock); in vgic_its_debug_start()
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| /linux/drivers/irqchip/ |
| H A D | irq-gic-v3-its.c | 44 #include "irq-gic-its-msi-parent.h"
83 * value of BASER register configuration and ITS page size.
95 * The ITS structure - contains most of the infrastructure, with the
131 #define is_v4(its) (!!((its)->typer & GITS_TYPER_VLPIS)) argument
132 #define is_v4_1(its) (!!((its)->typer & GITS_TYPER_VMAPP)) argument
133 #define device_ids(its) (FIELD_GET(GITS_TYPER_DEVBITS, (its)->typer) + 1) argument
165 * The ITS view of a device - belongs to an ITS, owns an interrupt
166 * translation table, and a list of interrupts. If it some of its
172 struct its_node *its; member
298 static bool require_its_list_vmovp(struct its_vm *vm, struct its_node *its) in require_its_list_vmovp() argument
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| H A D | irq-gic-v5-its.c | 6 #define pr_fmt(fmt) "GICv5 ITS: " fmt
24 #include "irq-gic-its-msi-parent.h"
64 static void gicv5_its_dcache_clean(struct gicv5_its_chip_data *its, void *start, in gicv5_its_dcache_clean() argument
69 if (its->flags & ITS_FLAGS_NON_COHERENT) in gicv5_its_dcache_clean()
75 static void its_write_table_entry(struct gicv5_its_chip_data *its, __le64 *entry, in its_write_table_entry() argument
79 gicv5_its_dcache_clean(its, entry, sizeof(*entry)); in its_write_table_entry()
82 #define devtab_cfgr_field(its, f) \ argument
83 FIELD_GET(GICV5_ITS_DT_CFGR_##f, (its)->devtab_cfgr.cfgr)
85 static int gicv5_its_cache_sync(struct gicv5_its_chip_data *its) in gicv5_its_cache_sync() argument
87 return gicv5_wait_for_op_atomic(its->its_base, GICV5_ITS_STATUSR, in gicv5_its_cache_sync()
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| H A D | irq-gic-its-msi-parent.c | 11 #include "irq-gic-its-msi-parent.h"
80 * Also tell the ITS that the signalling will come from a proxy in its_pci_msi_prepare()
91 /* ITS specific DeviceID, as the core ITS ignores dev. */ in its_pci_msi_prepare()
135 /* ITS specific DeviceID */ in its_v5_pci_msi_prepare()
137 /* ITS translate frame physical address */ in its_v5_pci_msi_prepare()
159 /* GICv5 ITS domain matches the MSI controller node parent */ in of_pmsi_get_msi_info()
199 /* ITS specific DeviceID, as the core ITS ignores dev. */ in its_pmsi_prepare()
225 /* ITS specific DeviceID */ in its_v5_pmsi_prepare()
227 /* ITS translate frame physical address */ in its_v5_pmsi_prepare()
320 .prefix = "ITS-",
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| /linux/arch/mips/generic/ |
| H A D | Platform | 18 its-y := vmlinux.its.S
19 its-$(CONFIG_FIT_IMAGE_FDT_BOSTON) += board-boston.its.S
20 its-$(CONFIG_FIT_IMAGE_FDT_NI169445) += board-ni169445.its.S
21 its-$(CONFIG_FIT_IMAGE_FDT_OCELOT) += board-ocelot.its.S
22 its-$(CONFIG_FIT_IMAGE_FDT_LUTON) += board-luton.its.S
23 its-$(CONFIG_FIT_IMAGE_FDT_JAGUAR2) += board-jaguar2.its.S
24 its-$(CONFIG_FIT_IMAGE_FDT_SERVAL) += board-serval.its.S
25 its-$(CONFIG_FIT_IMAGE_FDT_XILFPGA) += board-xilfpga.its.S
26 its-$(CONFIG_FIT_IMAGE_FDT_MARDUK) += board-marduk.its.S
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| /linux/Documentation/virt/kvm/devices/ |
| H A D | arm-vgic-its.rst | 4 ARM Virtual Interrupt Translation Service (ITS)
10 The ITS allows MSI(-X) interrupts to be injected into guests. This extension is
11 optional. Creating a virtual ITS controller also requires a host GICv3 (see
12 arm-vgic-v3.txt), but does not depend on having physical ITS controllers.
14 There can be multiple ITS controllers per guest, each of them has to have
26 Base address in the guest physical address space of the GICv3 ITS
37 -ENODEV Incorrect attribute or the ITS is not supported.
46 request the initialization of the ITS, no additional parameter in
50 reset the ITS, no additional parameter in kvm_device_attr.addr.
51 See "ITS Reset State" section.
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| /linux/tools/perf/pmu-events/arch/x86/knightslanding/ |
| H A D | cache.json | 145 …t accounts for responses from a snoop request hit with data forwarded from its Far(not in the same…
155 …t accounts for responses from a snoop request hit with data forwarded from its Far(not in the same…
165 …hat accounts for responses from snoop request hit with data forwarded from its Near-other tile L2 …
175 …t accounts for responses from a snoop request hit with data forwarded from its Near-other tile's L…
185 …t accounts for responses from a snoop request hit with data forwarded from its Near-other tile's L…
195 …ads and prefetch code read requests that accounts for responses which hit its own tile's L2 with …
205 …ads and prefetch code read requests that accounts for responses which hit its own tile's L2 with …
215 …ads and prefetch code read requests that accounts for responses which hit its own tile's L2 with …
225 …ads and prefetch code read requests that accounts for responses which hit its own tile's L2 with …
265 …t accounts for responses from a snoop request hit with data forwarded from its Far(not in the same…
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| /linux/tools/testing/selftests/timers/ |
| H A D | posix_timers.c | 261 struct itimerspec its; in check_sig_ign() local
300 its.it_value.tv_sec = 0; in check_sig_ign()
301 its.it_value.tv_nsec = 100000000; in check_sig_ign()
302 its.it_interval.tv_sec = 0; in check_sig_ign()
303 its.it_interval.tv_nsec = 100000000; in check_sig_ign()
304 timer_settime(timerid, 0, &its, NULL); in check_sig_ign()
347 struct itimerspec its; in check_rearm() local
373 its.it_value.tv_sec = 0; in check_rearm()
374 its.it_value.tv_nsec = 100000000; in check_rearm()
375 its.it_interval.tv_sec = 0; in check_rearm()
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| /linux/arch/mips/boot/ |
| H A D | Makefile | 115 targets += vmlinux.its.S
120 $(obj)/vmlinux.its.S: $(addprefix $(srctree)/arch/mips/$(PLATFORM)/,$(ITS_INPUTS)) FORCE
123 targets += vmlinux.its
124 targets += vmlinux.gz.its
125 targets += vmlinux.bz2.its
126 targets += vmlinux.lzma.its
127 targets += vmlinux.lzo.its
129 quiet_cmd_cpp_its_S = ITS $@
139 $(obj)/vmlinux.its: $(obj)/vmlinux.its.S $(VMLINUX) FORCE
142 $(obj)/vmlinux.gz.its: $(obj)/vmlinux.its.S $(VMLINUX) FORCE
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| /linux/Documentation/admin-guide/hw-vuln/ |
| H A D | indirect-target-selection.rst | 3 Indirect Target Selection (ITS)
6 ITS is a vulnerability in some Intel CPUs that support Enhanced IBRS and were
7 released before Alder Lake. ITS may allow an attacker to control the prediction
10 ITS is assigned CVE-2024-28956 with a CVSS score of 4.7 (Medium).
28 Below is the list of ITS affected CPUs [#f2]_ [#f3]_:
48 - IBPB isolation is affected on all ITS affected CPUs, and need a microcode
53 - Intel Atom CPUs are not affected by ITS.
58 in the lower half of the cacheline are vulnerable to ITS, the basic idea behind
62 compilers. ITS-vulnerable retpoline sites are runtime patched to point to newly
63 added ITS-safe thunks. These safe thunks consists of indirect branch in the
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| /linux/arch/um/os-Linux/ |
| H A D | time.c | 63 struct itimerspec its; in os_timer_set_interval() local
65 its.it_value.tv_sec = nsecs / UM_NSEC_PER_SEC; in os_timer_set_interval()
66 its.it_value.tv_nsec = nsecs % UM_NSEC_PER_SEC; in os_timer_set_interval()
68 its.it_interval.tv_sec = nsecs / UM_NSEC_PER_SEC; in os_timer_set_interval()
69 its.it_interval.tv_nsec = nsecs % UM_NSEC_PER_SEC; in os_timer_set_interval()
71 if (timer_settime(event_high_res_timer[cpu], 0, &its, NULL) == -1) in os_timer_set_interval()
79 struct itimerspec its = { in os_timer_one_shot() local
87 timer_settime(event_high_res_timer[cpu], 0, &its, NULL); in os_timer_one_shot()
97 struct itimerspec its; in os_timer_disable() local
99 memset(&its, 0, sizeof(struct itimerspec)); in os_timer_disable()
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| /linux/Documentation/admin-guide/device-mapper/ |
| H A D | vdo-design.rst | 50 the next phase of its operation requires access to the structures in the
54 each zone has an implicit lock on the structures it manages for all its
76 when the index is full, it should cull its oldest records to make space for
113 only a subset of the block name as its key, so it cannot guarantee that an
127 mapping each block name to the chapter containing its newest record. This
131 not been deleted from its chapter. Like the chapter index, the volume index
132 uses only a subset of the block name as its key and can not definitively
140 request looks up its name in the chapter index. This will indicate either
142 new, the request will look for its name in the indicated record page.
160 splitting its key space into many sub-lists, each starting at a fixed key
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| /linux/Documentation/power/ |
| H A D | runtime_pm.rst | 108 the helper functions described in Section 4 for the device until its status
113 mechanism allowing the device to request a change of its power state, such as
136 4 for the device, until its status is directly set to either 'active', or
148 idle callback with the device as its argument.
264 PM core as 'suspended', regardless of its real hardware status
321 then run pm_runtime_autosuspend(dev) and return its result
382 return its result
386 return its result;
389 if its return value is checked by the caller, as this is likely to
408 pm_request_idle(dev) and return its result
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| /linux/Documentation/devicetree/bindings/interrupt-controller/ |
| H A D | arm,gic-v5.yaml | 22 - zero or more ITS (Interrupt Translation Service)
132 "^its@[0-9a-f]+$":
135 GICv5 has zero or more Interrupt Translation Services (ITS) that are
137 ITS is connected to an IRS.
142 const: arm,gic-v5-its
146 - description: ITS config frames
168 Present if the GIC ITS permits programming shareability and
176 GICv5 ITS has one or more translate register frames.
182 - description: ITS translate frames
248 its@2f120000 {
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| H A D | arm,gic-v3.yaml | 189 "^gic-its@": false
192 "^(msi-controller|gic-its|interrupt-controller)@[0-9a-f]+$":
195 GICv3 has one or more Interrupt Translation Services (ITS) that are
199 const: arm,gic-v3-its
203 Present if the GIC ITS permits programming shareability and
217 Specifies the base physical address and size of the ITS registers.
220 socionext,synquacer-pre-its:
223 address and size of the pre-ITS window.
258 compatible = "arm,gic-v3-its";
284 compatible = "arm,gic-v3-its";
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| /linux/tools/perf/pmu-events/arch/arm64/fujitsu/a64fx/ |
| H A D | pipeline.json | 75 …"PublicDescription": "This event counts requests in L1D cache pipeline#0 that its sce bit of tagge…
78 …"BriefDescription": "This event counts requests in L1D cache pipeline#0 that its sce bit of tagged…
81 …"PublicDescription": "This event counts requests in L1D cache pipeline#0 that its pfe bit of tagge…
84 …"BriefDescription": "This event counts requests in L1D cache pipeline#0 that its pfe bit of tagged…
87 …"PublicDescription": "This event counts requests in L1D cache pipeline#1 that its sce bit of tagge…
90 …"BriefDescription": "This event counts requests in L1D cache pipeline#1 that its sce bit of tagged…
93 …"PublicDescription": "This event counts requests in L1D cache pipeline#1 that its pfe bit of tagge…
96 …"BriefDescription": "This event counts requests in L1D cache pipeline#1 that its pfe bit of tagged…
129 …"PublicDescription": "This event counts requests in L1D cache pipeline#0 that its sector cache ID …
132 …"BriefDescription": "This event counts requests in L1D cache pipeline#0 that its sector cache ID i…
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| /linux/drivers/acpi/arm64/ |
| H A D | iort.c | 156 * ITS ID and base address to the list from where we can get it back later on.
157 * @trans_id: ITS ID.
158 * @base: ITS base address.
184 * iort_deregister_domain_token() - Deregister domain token based on ITS ID
185 * @trans_id: ITS ID.
205 * iort_find_domain_token() - Find domain token based on given ITS ID
206 * @trans_id: ITS ID.
512 * Get the special ID mapping index (if any) and skip its in iort_node_map_id()
559 * optional step 2: map the initial dev id if its parent is not in iort_node_map_platform_id()
561 * as NC (named component) -> SMMU -> ITS. If the type is matched, in iort_node_map_platform_id()
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| /linux/Documentation/ABI/testing/ |
| H A D | sysfs-bus-usb | 142 connected to its receiver dongle, and, for example, consider
210 which wraps to 0 after its maximum is reached. This file supports
237 connection between a port and its connector.
329 See USB specs for its meaning.
335 See USB specs for its meaning.
344 Changing its value will change the device's configuration
351 See USB specs for its meaning.
357 See USB specs for its meaning.
363 See USB specs for its meaning.
369 See USB specs for its meaning.
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| /linux/Documentation/admin-guide/ |
| H A D | cgroup-v2.rst | 163 is no longer referenced in its current hierarchy. Because per-cgroup
275 A process can be migrated into a cgroup by writing its PID to the
326 Marking a cgroup threaded makes it join the resource domain of its
377 A domain cgroup is turned into a threaded domain when one of its child
388 threaded domain, its operations are confined inside each threaded
402 threads in the cgroup and its descendants. All consumptions which
407 between threads in a non-leaf cgroup and its child cgroups. Each
423 live processes in it. Its value is 0 if there is no live process in
424 the cgroup and its descendants; otherwise, 1. poll and [id]notify
473 the target resource across its immediate children will be controlled.
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| /linux/drivers/base/power/ |
| H A D | common.c | 23 * its reference counter. Return 0 if new object has been created or refcount
48 /* kfree() verifies that its argument is nonzero. */ in dev_pm_get_subsys_data()
84 * dev_pm_domain_attach - Attach a device to its PM domain.
122 * dev_pm_domain_attach_by_id - Associate a device with one of its PM domains.
133 * in case its device requires power management through multiple PM domains. The
135 * towards its original device. Depending on the use-case and if needed, the
142 * Returns the virtual created device when successfully attached to its PM
158 * dev_pm_domain_attach_by_name - Associate a device with one of its PM domains.
175 * dev_pm_domain_attach_list - Associate a device with its PM domains.
180 * This function helps to attach a device to its multiple PM domains. The
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| /linux/rust/kernel/ |
| H A D | opp.rs | 43 // SAFETY: The requirements are satisfied by the existence of [`Device`] and its safety in new()
183 // SAFETY: The requirements are satisfied by the existence of [`Device`] and its safety in new()
195 // SAFETY: The requirements are satisfied by the existence of [`Device`] and its safety in drop()
493 // SAFETY: The requirements are satisfied by the existence of [`Device`] and its safety in set()
505 // closure is `FnOnce` because it moves the variable `clk_names` out of its environment in set()
576 /// The following example demonstrates how to get OPP [`Table`] for a [`Cpumask`] and set its
626 // SAFETY: By the safety requirements, ptr is valid and its refcount will be incremented. in from_raw_table()
642 // SAFETY: The requirements are satisfied by the existence of the [`Device`] and its safety in from_dev()
662 // SAFETY: The requirements are satisfied by the existence of the [`Device`] and its safety in from_of()
680 // SAFETY: The requirements are satisfied by the existence of the [`Device`] and its safety in remove_of()
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| /linux/Documentation/admin-guide/cgroup-v1/ |
| H A D | cpusets.rst | 57 include CPUs in its CPU affinity mask, and using the mbind(2) and
58 set_mempolicy(2) system calls to include Memory Nodes in its memory
61 schedule a task on a CPU that is not allowed in its cpus_allowed
145 - in fork and exit, to attach and detach a task from its cpuset.
191 command. The properties of a cpuset, such as its flags, allowed
211 - Its CPUs and Memory Nodes must be a subset of its parents.
212 - It can't be marked exclusive unless its parent is.
213 - If its cpu or memory is exclusive, they may not overlap any sibling.
253 isolating each job's user allocation in its own cpuset. To do this,
398 The algorithmic cost of load balancing and its impact on key shared
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| /linux/Documentation/driver-api/pm/ |
| H A D | devices.rst | 58 example, a parent device cannot be suspended unless all of its child
147 The :c:member:`power.can_wakeup` flag just records whether the device (and its
152 its system wakeup mechanism and for notifying the PM core of system wakeup
207 runtime power-managed by its driver. Writing "on" calls
216 system-wide transition to a sleep state even though its :c:member:`runtime_auto`
237 and then turn its hardware as "off" as possible during suspend_noirq. The
239 before reactivating its class I/O queues.
255 its parent; and can't be removed or suspended after that parent.
331 method must not update its state in case it is necessary to resume it
351 PM, then its prepare callback must never return a positive value. This
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| /linux/Documentation/security/ |
| H A D | IMA-templates.rst | 90 - "ima": its format is ``d|n``;
91 - "ima-ng" (default): its format is ``d-ng|n-ng``;
92 - "ima-ngv2": its format is ``d-ngv2|n-ng``;
93 - "ima-sig": its format is ``d-ng|n-ng|sig``;
94 - "ima-sigv2": its format is ``d-ngv2|n-ng|sig``;
95 - "ima-buf": its format is ``d-ng|n-ng|buf``;
96 - "ima-modsig": its format is ``d-ng|n-ng|sig|d-modsig|modsig``;
97 …- "evm-sig": its format is ``d-ng|n-ng|evmsig|xattrnames|xattrlengths|xattrvalues|iuid|igid|imode`…
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