Lines Matching refs:option
8 Most parameters take the form `option=value`. Different options on
14 All boolean option may be explicitly enabled using a `value` of
20 In addition, a boolean option may be enabled by simply stating its
82 The **acpi** option is used to control a set of four related boolean
94 The `acpi=noirq` option causes Xen to not parse the ACPI MADT table
96 which requires this option to function should be blacklisted.
104 the domain 0 kernel this option is automatically propagated to the
133 `s3_mode` instructs Xen to set up the boot time (option `vga=`) video
182 in combination with cpuidle. This option is only expected to be useful for
190 The functionality that this option controls is only available when Xen has been
202 This option is disabled by default, to protect domains from a DoS by a
260 This option reduces boot time on machines with a large amount of RAM while
285 The option is available when `CONFIG_XEN_SHSTK` is compiled in, and
290 Shadow Stacks are incompatible with 32bit PV guests. This option will
300 some platforms, the "maxcpus" option may need to be used to further adjust
325 Both option `com1` and `com2` follow the same format.
362 unless the parameter is explicitly specified with name=value option, it
377 * `dev` - accepted values are `pci` OR `amt`. If this option
420 `pv` indicates that Xen should use Xen's PV console. This option is
425 `none` indicates that Xen should not use a console. This option only
448 `console_timestamps` alone will enable the `date` option.
497 * `verbose` option can be included as a string or also as `verbose=<integer>`
502 This option allows for fine tuning of the facilities Xen will use, after
542 **Warning: This option is not fully effective on Family 15h processors or
568 recommended not to use this option, as doing so causes an unnecessary
583 combination with the **low_crashinfo** command line option.
601 which would otherwise require escaping of the < option
710 The `pv` option is only available when `CONFIG_PV` is compiled in. The
711 `pvh` option is only available when `CONFIG_HVM` is compiled in. When
721 paging. This option is unavailable when `CONFIG_SHADOW_PAGING` is
735 * The `cpuid-faulting` boolean is an interim option, is only applicable to
762 This option is only applicable to x86 PV dom0's, and defaults to false.
765 functionality on a per-device basis, and will cause this option to be
769 This option is hardwired to false for x86 PVH dom0's (where a non-identity
776 This option is hardwired to true for x86 PVH dom0's (as RAM belonging to
788 and this option is a coarse-grain workaround for those errors.
793 This option is disabled by default, and deprecated and intended for
804 * The `none` option is intended for development purposes only, and skips
808 Incorrect use of this option may result in a malfunctioning system.
866 the maximum (i.e., `max` overrides the `min` option). If there isn't
883 If you use this option then it is highly recommended that you disable
888 This option doesn't have effect if pv-shim mode is enabled.
943 disable it (edid=no). This option should not normally be required
1000 this option can enabled to regain performance.
1012 **Warning: No guarantee is made that this runtime option will be retained
1014 intended as an emergency option for people who first chose fast, then
1036 Specify how the FLASK security server should be configured. This option is only
1078 requirement can be relaxed. This option is particularly useful for nested
1144 Other cases where this option might be a benefit is on VT-x hardware when
1159 The optional `<rate-limited level>` option instructs which severities
1193 system including a hardware domain with the specified domain ID. This option is
1221 When the hmp-unsafe option is disabled (default), CPUs that are not
1256 This option is intended for development and testing purposes.
1332 hardware, and this option is ignored. It is enabled by default on Intel
1335 This option is ignored on ARM, and the pagetables are always shared.
1342 This option is only valid on x86.
1349 This option depends on `intremap`, and is disabled by default due to some
1352 This option is only valid on x86, and only builds of Xen with HVM support.
1355 before switching to a crash kernel. This option is inactive by default and
1381 similar to Linux's `intel_iommu=igfx_off` option. If specifying `no-igfx`
1410 **WARNING: This command line option is deprecated, and superseded by
1445 This option is intended for debugging purposes only. Enable MSR_DEBUGCTL.LBR
1459 The optional `<rate-limited level>` option instructs which severities
1467 This option is only useful for hosts with a 32bit dom0 kernel, wishing
1486 This option is ignored in **pv-shim** mode.
1551 This option relaxes the check for Domain 0 (or when using `all`, all PV
1592 domain 0 kernel this option is automatically propagated to the domain
1601 it is available. This option can be used to cause Xen to fall back to
1622 Do not execute real-mode bootstrap code when booting Xen. This option
1624 the **vga** option, which relies on real mode to set the video mode.
1639 This option is ignored in **pv-shim** mode.
1665 This option can be specified more than once (up to 8 times at present).
1749 shadow stacks, this option will be overridden to `false`. Backwards
1800 This option is intended for use by a toolstack, when choosing to run a PV
1952 This option inverts the logic, so that the scheduler in effect tries
1989 All SErrors will cause the whole system to crash. This option should only
2017 in some cases and generally lower security risk the option defaults to false.
2028 in some cases and generally lower security risk the option defaults to false.
2050 The option `ssbd=` is used to control the state of Speculative Store
2073 **WARNING: Any use of this option may interfere with heuristics. Use with
2079 `smt`, `pv-l1tf`, `tsx` control, unless the respective option(s) have been
2113 `ibrs=` option can be used to force or prevent Xen using the feature itself.
2118 option can be used to force (the default) or prevent Xen from issuing branch
2122 option can be used to force or prevent Xen using the feature itself. On AMD
2123 hardware, this is a global option applied at boot, and not virtualised for
2127 On all hardware, the `eager-fpu=` option can be used to force or prevent Xen
2132 On hardware supporting L1D_FLUSH, the `l1d-flush=` option can be used to force
2143 On hardware supporting SRBDS_CTRL, the `srb-lock=` option can be used to force
2212 mitigated by disabling TSX, as this is the lowest overhead option.
2234 image). Note further that use of this option has an unspecified effect
2289 `ask` option. (N.B menu modes are displayed in hex, so `<mode>`
2339 As a result, use of the **watchdog** option will override and disable
2342 * The `bts` option enables performance monitoring, and permits additional
2348 * The `ipc` option allows access to the most minimal set of counters
2352 * The `arch` option allows access to the pre-defined architectural events.
2379 means "wait for event". This option, which is ARM specific, changes the
2419 In the case that x2apic is in use, this option switches between physical and
2465 Specify which XSM module should be enabled. This option is only available if
2471 separated option in kconfig must also be enabled.
2473 unprivileged VMs. To choose this, the separated option in kconfig must also