Xen project Mailing List

[Xen-devel] [PATCH 1/7] doc: sort entries of boot parameters correctly

Some of the boot parameters in docs/misc/xen-command-line.markdown are not in the correct alphabetically order. Correct that. Signed-off-by: Juergen Gross <jgross@xxxxxxxx> --- docs/misc/xen-command-line.markdown | 226 ++++++++++++++++++------------------ 1 file changed, 113 insertions(+), 113 deletions(-) diff --git a/docs/misc/xen-command-line.markdown b/docs/misc/xen-command-line.markdown index b353352adf..d175e6070b 100644 --- a/docs/misc/xen-command-line.markdown +++ b/docs/misc/xen-command-line.markdown @@ -133,6 +133,18 @@ resume. `s3_mode` instructs Xen to set up the boot time (option `vga=`) video mode during S3 resume. +### allow\_unsafe +> `= <boolean>` + +> Default: `false` + +Force boot on potentially unsafe systems. By default Xen will refuse +to boot on systems with the following errata: + +* AMD Erratum 121. Processors with this erratum are subject to a guest + triggerable Denial of Service. Override only if you trust all of + your PV guests. + ### altp2m (Intel) > `= <boolean>` @@ -147,18 +159,6 @@ Override Xen's logic for choosing the APIC driver. By default, if there are more than 8 CPUs, Xen will switch to `bigsmp` over `default`. -### allow\_unsafe -> `= <boolean>` - -> Default: `false` - -Force boot on potentially unsafe systems. By default Xen will refuse -to boot on systems with the following errata: - -* AMD Erratum 121. Processors with this erratum are subject to a guest - triggerable Denial of Service. Override only if you trust all of - your PV guests. - ### apicv > `= <boolean>` @@ -276,17 +276,6 @@ when the RSB gets overwritten. The former control all RSB overwriting, while the latter two can be used to fine tune overwriting on from HVM context, and an entry from a native (PV or Xen) context. -### xenheap\_megabytes (arm32) -> `= <size>` - -> Default: `0` (1/32 of RAM) - -Amount of RAM to set aside for the Xenheap. Must be an integer multiple of 32. - -By default will use 1/32 of the RAM up to a maximum of 1GB and with a -minimum of 32M, subject to a suitably aligned and sized contiguous -region of memory being available. - ### clocksource > `= pit | hpet | acpi | tsc` @@ -658,6 +647,24 @@ trace feature is only enabled in debugging builds of Xen. Specify the bit width of the DMA heap. +### dom0 +> `= List of [ pvh | shadow ]` + +> Sub-options: + +> `pvh` + +> Default: `false` + +Flag that makes a dom0 boot in PVHv2 mode. + +> `shadow` + +> Default: `false` + +Flag that makes a dom0 use shadow paging. Only works when "pvh" is +enabled. + ### dom0\_ioports\_disable > `= List of <hex>-<hex>` @@ -750,24 +757,6 @@ affinities to prefer but be not limited to the specified node(s). Pin dom0 vcpus to their respective pcpus -### dom0 -> `= List of [ pvh | shadow ]` - -> Sub-options: - -> `pvh` - -> Default: `false` - -Flag that makes a dom0 boot in PVHv2 mode. - -> `shadow` - -> Default: `false` - -Flag that makes a dom0 use shadow paging. Only works when "pvh" is -enabled. - ### dtuart (ARM) > `= path [:options]` @@ -824,6 +813,30 @@ effect the inverse meaning. >> Allows mapping of RuntimeServices which have no cachability attribute >> set as UC. +### ept (Intel) +> `= List of ( {no-}pml | {no-}ad )` + +Controls EPT related features. + +> Sub-options: + +> `pml` + +> Default: `true` + +>> PML is a new hardware feature in Intel's Broadwell Server and further +>> platforms which reduces hypervisor overhead of log-dirty mechanism by +>> automatically recording GPAs (guest physical addresses) when guest memory +>> gets dirty, and therefore significantly reducing number of EPT violation +>> caused by write protection of guest memory, which is a necessity to +>> implement log-dirty mechanism before PML. + +> `ad` + +> Default: Hardware dependent + +>> Have hardware keep accessed/dirty (A/D) bits updated. + ### extra\_guest\_irqs > `= [<domU number>][,<dom0 number>]` @@ -889,30 +902,6 @@ requirement can be relaxed. This option is particularly useful for nested virtualization, to allow the L1 hypervisor to use EPT even if the L0 hypervisor does not provide VM\_ENTRY\_LOAD\_GUEST\_PAT. -### ept (Intel) -> `= List of ( {no-}pml | {no-}ad )` - -Controls EPT related features. - -> Sub-options: - -> `pml` - -> Default: `true` - ->> PML is a new hardware feature in Intel's Broadwell Server and further ->> platforms which reduces hypervisor overhead of log-dirty mechanism by ->> automatically recording GPAs (guest physical addresses) when guest memory ->> gets dirty, and therefore significantly reducing number of EPT violation ->> caused by write protection of guest memory, which is a necessity to ->> implement log-dirty mechanism before PML. - -> `ad` - -> Default: Hardware dependent - ->> Have hardware keep accessed/dirty (A/D) bits updated. - ### gdb > `= com1[H,L] | com2[H,L] | dbgp` @@ -1013,6 +1002,12 @@ supported only when compiled with XSM on x86. Control Xens use of the APEI Hardware Error Source Table, should one be found. +### highmem-start +> `= <size>` + +Specify the memory boundary past which memory will be treated as highmem (x86 +debug hypervisor only). + ### hmp-unsafe (arm) > `= <boolean>` @@ -1076,12 +1071,6 @@ Specify whether guests are to be given access to physical port 80 (often used for debugging purposes), to override the DMI based detection of systems known to misbehave upon accesses to that port. -### highmem-start -> `= <size>` - -Specify the memory boundary past which memory will be treated as highmem (x86 -debug hypervisor only). - ### idle\_latency\_factor > `= <integer>` @@ -1274,16 +1263,8 @@ with **crashinfo_maxaddr**. Specify the threshold below which Xen will inform dom0 that the quantity of free memory is getting low. Specifying `0` will disable this notification. -### memop-max-order -> `= [<domU>][,[<ctldom>][,[<hwdom>][,<ptdom>]]]` - -> x86 default: `9,18,12,12` -> ARM default: `9,18,10,10` - -Change the maximum order permitted for allocation (or allocation-like) -requests issued by the various kinds of domains (in this order: -ordinary DomU, control domain, hardware domain, and - when supported -by the platform - DomU with pass-through device assigned). +### maxcpus +> `= <integer>` ### max\_cstate > `= <integer>` @@ -1294,9 +1275,6 @@ by the platform - DomU with pass-through device assigned). Specifies the number of interrupts to be use for pin (IO-APIC or legacy PIC) based interrupts. Any higher IRQs will be available for use via PCI MSI. -### maxcpus -> `= <integer>` - ### max\_lpi\_bits > `= <integer>` @@ -1323,6 +1301,17 @@ Specify verbose machine check output. Specify the maximum address of physical RAM. Any RAM beyond this limit is ignored by Xen. +### memop-max-order +> `= [<domU>][,[<ctldom>][,[<hwdom>][,<ptdom>]]]` + +> x86 default: `9,18,12,12` +> ARM default: `9,18,10,10` + +Change the maximum order permitted for allocation (or allocation-like) +requests issued by the various kinds of domains (in this order: +ordinary DomU, control domain, hardware domain, and - when supported +by the platform - DomU with pass-through device assigned). + ### mmcfg > `= <boolean>[,amd-fam10]` @@ -1442,12 +1431,6 @@ All numbers specified must be hexadecimal ones. This option can be specified more than once (up to 8 times at present). -### ple\_gap -> `= <integer>` - -### ple\_window -> `= <integer>` - ### pku > `= <boolean>` @@ -1458,6 +1441,12 @@ Flag to enable Memory Protection Keys. The protection-key feature provides an additional mechanism by which IA-32e paging controls access to usermode addresses. +### ple\_gap +> `= <integer>` + +### ple\_window +> `= <integer>` + ### psr (Intel) > `= List of ( cmt:<boolean> | rmid_max:<integer> | cat:<boolean> | > cos_max:<integer> | cdp:<boolean> )` @@ -1529,21 +1518,6 @@ guest compatibly inside an HVM container. In this mode, the kernel and initrd passed as modules to the hypervisor are constructed into a plain unprivileged PV domain. -### shim\_mem (x86) -> `= List of ( min:<size> | max:<size> | <size> )` - -Set the amount of memory that xen-shim uses. Only has effect if pv-shim mode is -enabled. Note that this value accounts for the memory used by the shim itself -plus the free memory slack given to the shim for runtime allocations. - -* `min:<size>` specifies the minimum amount of memory. Ignored if greater - than max. -* `max:<size>` specifies the maximum amount of memory. -* `<size>` specifies the exact amount of memory. Overrides both min and max. - -By default, the amount of free memory slack given to the shim for runtime usage -is 1MB. - ### rcu-idle-timer-period-ms > `= <integer>` @@ -1706,6 +1680,21 @@ hypervisors handle SErrors: All SErrors will crash the whole system. This option will avoid all overhead of the dsb/isb pairs. +### shim\_mem (x86) +> `= List of ( min:<size> | max:<size> | <size> )` + +Set the amount of memory that xen-shim uses. Only has effect if pv-shim mode is +enabled. Note that this value accounts for the memory used by the shim itself +plus the free memory slack given to the shim for runtime allocations. + +* `min:<size>` specifies the minimum amount of memory. Ignored if greater + than max. +* `max:<size>` specifies the maximum amount of memory. +* `<size>` specifies the exact amount of memory. Overrides both min and max. + +By default, the amount of free memory slack given to the shim for runtime usage +is 1MB. + ### smap > `= <boolean> | hvm` @@ -1845,14 +1834,6 @@ The optional `keep` parameter causes Xen to continue using the vga console even after dom0 has been started. The default behaviour is to relinquish control to dom0. -### viridian-version -> `= [<major>],[<minor>],[<build>]` - -> Default: `6,0,0x1772` - -<major>, <minor> and <build> must be integers. The values will be -encoded in guest CPUID 0x40000002 if viridian enlightenments are enabled. - ### viridian-spinlock-retry-count > `= <integer>` @@ -1861,6 +1842,14 @@ encoded in guest CPUID 0x40000002 if viridian enlightenments are enabled. Specify the maximum number of retries before an enlightened Windows guest will notify Xen that it has failed to acquire a spinlock. +### viridian-version +> `= [<major>],[<minor>],[<build>]` + +> Default: `6,0,0x1772` + +<major>, <minor> and <build> must be integers. The values will be +encoded in guest CPUID 0x40000002 if viridian enlightenments are enabled. + ### vpid (Intel) > `= <boolean>` @@ -1954,6 +1943,17 @@ In the case that x2apic is in use, this option switches between physical and clustered mode. The default, given no hint from the **FADT**, is cluster mode. +### xenheap\_megabytes (arm32) +> `= <size>` + +> Default: `0` (1/32 of RAM) + +Amount of RAM to set aside for the Xenheap. Must be an integer multiple of 32. + +By default will use 1/32 of the RAM up to a maximum of 1GB and with a +minimum of 32M, subject to a suitably aligned and sized contiguous +region of memory being available. + ### xpti > `= <boolean>` -- 2.13.6 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/xen-devel

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