* broken build on staging docs
@ 2018-04-12 23:07 Doug Goldstein
2018-04-13 13:58 ` [PATCH] docs/gen-html-index: Make HTML::TreeBuilder::XPath optional again Ian Jackson
` (2 more replies)
0 siblings, 3 replies; 15+ messages in thread
From: Doug Goldstein @ 2018-04-12 23:07 UTC (permalink / raw)
To: xen-devel, Ian Jackson, Lars Kurth
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Since change 7782db9260d4c6499458de4e8d9866bc0427e143 the build has been
broken. See https://gitlab.com/xen-project/xen/pipelines/20403549 for
logs. Ultimately its because HTML::TreeBuilder::XPath is now a required
Perl module. Previously the only necessary Perl modules where those
shipped in the core of Perl. While I've got no problem updating all the
containers to include it, there is a bit of a conundrum where
CentOS/RHEL don't actually package and include it. I've also checked
EPEL and its not included. Not sure what approach folks would like to
take as this will require people to bust out CPAN for RHEL/CentOS based
builds.
--
Doug Goldstein
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^ permalink raw reply [flat|nested] 15+ messages in thread* [PATCH] docs/gen-html-index: Make HTML::TreeBuilder::XPath optional again 2018-04-12 23:07 broken build on staging docs Doug Goldstein @ 2018-04-13 13:58 ` Ian Jackson 2018-04-13 16:00 ` Doug Goldstein 2018-04-13 14:25 ` broken build on staging docs Ian Jackson 2018-04-17 14:46 ` [PATCH v2 0/7] SUPPORT.md: Distinguish descriptions from caveats Ian Jackson 2 siblings, 1 reply; 15+ messages in thread From: Ian Jackson @ 2018-04-13 13:58 UTC (permalink / raw) To: xen-devel Cc: Juergen Gross, Lars Kurth, Ian Jackson, Doug Goldstein, George Dunlap 7782db9260d4 "docs/gen-html-index: Extract titles from HTML documents" requires HTML::TreeBuilder::XPath. This is sadly not as widely available as I had hoped. Work around this problem by making the use of this module optional: instead of `use'ing at the toplevel, we `require' it in the eval. If it's not present, then the title is simply not extracted and the filename is used as before, which is tolerable. Reported-by: Doug Goldstein <cardoe@cardoe.com> Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com> --- docs/gen-html-index | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/docs/gen-html-index b/docs/gen-html-index index 8258e2b..4fad6db 100644 --- a/docs/gen-html-index +++ b/docs/gen-html-index @@ -10,7 +10,6 @@ use warnings; use Getopt::Long; use IO::File; use File::Basename; -use HTML::TreeBuilder::XPath; Getopt::Long::Configure('bundling'); @@ -21,8 +20,10 @@ our @dirs; our %index; our $outdir; +our $debug; -GetOptions("i=s" => sub { read_index(@_);} ) +GetOptions("i=s" => sub { read_index(@_);}, + "D" => \$debug) or die; ($outdir,@docs) = @ARGV; @@ -68,6 +69,7 @@ sub make_linktext ($) { my $from_html; eval { + require HTML::TreeBuilder::XPath; my $tree = new HTML::TreeBuilder::XPath; my $f = "$outdir/$l.html"; open F, '<', $f or die "$l $f $!"; @@ -75,6 +77,7 @@ sub make_linktext ($) { close F; $from_html = $tree->findvalue("/html/head/title"); }; + print "$l: get title: $@" if $@ && $debug; return $from_html if $from_html; return basename($l); -- 2.1.4 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel ^ permalink raw reply related [flat|nested] 15+ messages in thread
* Re: [PATCH] docs/gen-html-index: Make HTML::TreeBuilder::XPath optional again 2018-04-13 13:58 ` [PATCH] docs/gen-html-index: Make HTML::TreeBuilder::XPath optional again Ian Jackson @ 2018-04-13 16:00 ` Doug Goldstein 2018-04-13 16:28 ` Ian Jackson 0 siblings, 1 reply; 15+ messages in thread From: Doug Goldstein @ 2018-04-13 16:00 UTC (permalink / raw) To: Ian Jackson, xen-devel; +Cc: Juergen Gross, Lars Kurth, George Dunlap On 4/13/18 8:58 AM, Ian Jackson wrote: > 7782db9260d4 "docs/gen-html-index: Extract titles from HTML documents" > requires HTML::TreeBuilder::XPath. > > This is sadly not as widely available as I had hoped. Work around > this problem by making the use of this module optional: instead of > `use'ing at the toplevel, we `require' it in the eval. If it's not > present, then the title is simply not extracted and the filename is > used as before, which is tolerable. > > Reported-by: Doug Goldstein <cardoe@cardoe.com> > Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com> Reviewed-by: Doug Goldstein <cardoe@cardoe.com> Tested-by: Doug Goldstein <cardoe@cardoe.com> The test run is here: https://gitlab.com/cardoe/xen/pipelines/20462270 -- Doug Goldstein _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel ^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [PATCH] docs/gen-html-index: Make HTML::TreeBuilder::XPath optional again 2018-04-13 16:00 ` Doug Goldstein @ 2018-04-13 16:28 ` Ian Jackson 0 siblings, 0 replies; 15+ messages in thread From: Ian Jackson @ 2018-04-13 16:28 UTC (permalink / raw) To: Doug Goldstein; +Cc: Juergen Gross, xen-devel, George Dunlap, Lars Kurth Doug Goldstein writes ("Re: [PATCH] docs/gen-html-index: Make HTML::TreeBuilder::XPath optional again"): > Reviewed-by: Doug Goldstein <cardoe@cardoe.com> > Tested-by: Doug Goldstein <cardoe@cardoe.com> > > The test run is here: https://gitlab.com/cardoe/xen/pipelines/20462270 Thanks. Since this bug was blocking the smoke test, I have pushed this fix. Ian. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel ^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: broken build on staging docs 2018-04-12 23:07 broken build on staging docs Doug Goldstein 2018-04-13 13:58 ` [PATCH] docs/gen-html-index: Make HTML::TreeBuilder::XPath optional again Ian Jackson @ 2018-04-13 14:25 ` Ian Jackson 2018-04-17 14:46 ` [PATCH v2 0/7] SUPPORT.md: Distinguish descriptions from caveats Ian Jackson 2 siblings, 0 replies; 15+ messages in thread From: Ian Jackson @ 2018-04-13 14:25 UTC (permalink / raw) To: Doug Goldstein; +Cc: Juergen Gross, xen-devel, George Dunlap, Lars Kurth Doug Goldstein writes ("broken build on staging docs"): > Since change 7782db9260d4c6499458de4e8d9866bc0427e143 the build has been > broken. See https://gitlab.com/xen-project/xen/pipelines/20403549 for > logs. Ultimately its because HTML::TreeBuilder::XPath is now a required > Perl module. Previously the only necessary Perl modules where those > shipped in the core of Perl. While I've got no problem updating all the > containers to include it, there is a bit of a conundrum where > CentOS/RHEL don't actually package and include it. I've also checked > EPEL and its not included. Not sure what approach folks would like to > take as this will require people to bust out CPAN for RHEL/CentOS based > builds. I've just posted a patch which I think will fix this for you. Can you try it please ? [PATCH] docs/gen-html-index: Make HTML::TreeBuilder::XPath optional again Thanks, Ian. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel ^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH v2 0/7] SUPPORT.md: Distinguish descriptions from caveats 2018-04-12 23:07 broken build on staging docs Doug Goldstein 2018-04-13 13:58 ` [PATCH] docs/gen-html-index: Make HTML::TreeBuilder::XPath optional again Ian Jackson 2018-04-13 14:25 ` broken build on staging docs Ian Jackson @ 2018-04-17 14:46 ` Ian Jackson 2018-04-17 14:46 ` [PATCH 1/7] docs/parse-support-md: internals: Introduce docref_a Ian Jackson ` (6 more replies) 2 siblings, 7 replies; 15+ messages in thread From: Ian Jackson @ 2018-04-17 14:46 UTC (permalink / raw) To: xen-devel; +Cc: Juergen Gross, Lars Kurth, George Dunlap The new support matrix output puts a [*] after each entry in the support matrix in many cases where the linked-to text is simply a longer description of the feature. Remedy this by distinguishing text which expands on a feature description from text which qualifies its support status. There are 3 patches to processing machinery, followed by two patches to SUPPORT.md (one to make the distinction, throughout, and one to document it); followed by two patches to fix a bug (logically these should come first, but rebasing them is annoying). The patches to SUPPORT.md would ideally go to 4.10 too. Example output: https://xenbits.xen.org/people/iwj/2018/support-matrix-example-B-v2/t.html r 1/7 docs/parse-support-md: internals: Introduce docref_a r 2/7 docs/parse-support-md: internals: Rename HasText to r 3/7 SUPPORT.md, support matrix: Treat commentary before *r 4/7 SUPPORT.md: Move descriptions up before Status info a r 5/7 SUPPORT.md: Document the new text ordering rule + 6/7 docs/parse-support.md: Add some newlines to the table + 7/7 docs/parse-support-md: Correctly handle footnotes for + = New patch in v2 * = Amended patch in v2 r = Release-acked a = Acked by appropriate maintainer and/or community manager _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel ^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH 1/7] docs/parse-support-md: internals: Introduce docref_a 2018-04-17 14:46 ` [PATCH v2 0/7] SUPPORT.md: Distinguish descriptions from caveats Ian Jackson @ 2018-04-17 14:46 ` Ian Jackson 2018-04-17 14:46 ` [PATCH 2/7] docs/parse-support-md: internals: Rename HasText to HasCaveat Ian Jackson ` (5 subsequent siblings) 6 siblings, 0 replies; 15+ messages in thread From: Ian Jackson @ 2018-04-17 14:46 UTC (permalink / raw) To: xen-devel; +Cc: Juergen Gross, Lars Kurth, Ian Jackson, George Dunlap No functional change. Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com> Release-acked-by: Juergen Gross <jgross@suse.com> --- docs/parse-support-md | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/docs/parse-support-md b/docs/parse-support-md index decda33..5bf8405 100755 --- a/docs/parse-support-md +++ b/docs/parse-support-md @@ -318,6 +318,12 @@ sub o { print @_ or die $!; } our @pending_headings; +sub docref_a ($$) { + my ($i, $realsect) = @_; + return sprintf '<a href="%s#%s">', + $version_urls[$i], $realsect->{Anchor}; +} + sub write_output_row ($) { my ($sectnode) = @_; # print STDERR 'WOR ', Dumper($d, $sectnode); @@ -364,8 +370,8 @@ sub write_output_row ($) { && $sectnode->{RealSect}{Anchor}) { my $rows = $sectnode->{RealSect}{Rows}; $nextcell = sprintf '<td rowspan=%d>', $rows; - $nextcell .= sprintf '<a href="%s#%s">[*]</a>', - $version_urls[$i], $sectnode->{RealSect}{Anchor}; + $nextcell .= docref_a $i, $sectnode->{RealSect}; + $nextcell .= '[*]</a>'; $nextcell .= '</td>'; $colspan = ''; } -- 2.1.4 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel ^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH 2/7] docs/parse-support-md: internals: Rename HasText to HasCaveat 2018-04-17 14:46 ` [PATCH v2 0/7] SUPPORT.md: Distinguish descriptions from caveats Ian Jackson 2018-04-17 14:46 ` [PATCH 1/7] docs/parse-support-md: internals: Introduce docref_a Ian Jackson @ 2018-04-17 14:46 ` Ian Jackson 2018-04-17 14:46 ` [PATCH 3/7] SUPPORT.md, support matrix: Treat commentary before status as description Ian Jackson ` (4 subsequent siblings) 6 siblings, 0 replies; 15+ messages in thread From: Ian Jackson @ 2018-04-17 14:46 UTC (permalink / raw) To: xen-devel; +Cc: Juergen Gross, Lars Kurth, Ian Jackson, George Dunlap No functional change. Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com> Release-acked-by: Juergen Gross <jgross@suse.com> --- docs/parse-support-md | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/docs/parse-support-md b/docs/parse-support-md index 5bf8405..6953930 100755 --- a/docs/parse-support-md +++ b/docs/parse-support-md @@ -34,7 +34,7 @@ our $toplevel_sectlist = new_sectlist(); # $sectlist->{KEY}{Children} = a further $sectlist # $sectlist->{KEY}{Key} = KEY # $sectlist->{KEY}{RealSect} = containing real section in @insections, so -# $sectlist->{KEY}{RealSect}{HasText}[VI] = trueish iff there was a Para +# $sectlist->{KEY}{RealSect}{HasCaveat}[VI] = trueish iff other in a Para # $sectlist->{KEY}{RealSect}{Anchor} = value for < id="" > in the pandoc html # A $sectnode represents a single section from the original markdown # document. Its subsections are in Children. @@ -57,7 +57,7 @@ our @insections; # $insections[]{Headline} = markdown content # these next are only defined for real sections, not Status elements # $insections[]{Anchor} = string -# $insections[]{HasText} = array, $sectlist->{HasText} will refer to this +# $insections[]{HasCaveat} = array, $sectlist->{HasCaveat} will refer to this our $had_unknown; # adding new variable ? it must be reset in r_toplevel @@ -77,14 +77,14 @@ sub ri_Header { Key => $id, Anchor => $id, Headline => $hl, - HasText => [], + HasCaveat => [], }; #print STDERR Dumper(\@insections); } sub ri_Para { if (@insections) { - $insections[$#insections]{HasText}[$version_index] = 1; + $insections[$#insections]{HasCaveat}[$version_index] = 1; } }; @@ -366,7 +366,7 @@ sub write_output_row ($) { my $nextcell = ''; if (!defined $colspan) { # first row of this RealSect $colspan= ' colspan="2"'; - if ($sectnode->{RealSect}{HasText}[$i] && $st + if ($sectnode->{RealSect}{HasCaveat}[$i] && $st && $sectnode->{RealSect}{Anchor}) { my $rows = $sectnode->{RealSect}{Rows}; $nextcell = sprintf '<td rowspan=%d>', $rows; -- 2.1.4 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel ^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH 3/7] SUPPORT.md, support matrix: Treat commentary before status as description 2018-04-17 14:46 ` [PATCH v2 0/7] SUPPORT.md: Distinguish descriptions from caveats Ian Jackson 2018-04-17 14:46 ` [PATCH 1/7] docs/parse-support-md: internals: Introduce docref_a Ian Jackson 2018-04-17 14:46 ` [PATCH 2/7] docs/parse-support-md: internals: Rename HasText to HasCaveat Ian Jackson @ 2018-04-17 14:46 ` Ian Jackson 2018-04-17 14:46 ` [PATCH 4/7] SUPPORT.md: Move descriptions up before Status info Ian Jackson ` (3 subsequent siblings) 6 siblings, 0 replies; 15+ messages in thread From: Ian Jackson @ 2018-04-17 14:46 UTC (permalink / raw) To: xen-devel; +Cc: Juergen Gross, Lars Kurth, Ian Jackson, George Dunlap Running text in feature sections in the markdown document currently might be (i) a caveat, qualifying or clarifying the support statement (ii) a plain description of the feature. Caveats can be version-specific and deserve the [*] annotation in the relevant feature matrix cell. They must link to SUPPORT.html for the specific version. Descriptions are not version specific. In that case the [*] annotation is visusal noise. Rather, it is better to make a hyperlink out of the text which is being expanded on. The hyperlink can point to any appropriate version. There is a question about how to notate this distinction in SUPPORT.md. After IRL discussion with George and Lars I propose that we should put text which helps describe a feature (ie, which expands on a section heading) after the heading but before the Status indications; whereas, caveats and supplementary information about the actual status, should follow the Status block. This patch implements this distinction in the support matrix generator. Only paragraphs containing _only_ italic content count as descriptive; anything else is treated as a caveat. In the code: * Add a new entry to RealSect, HasDescription * When parsing, track whether we are before or after the first Status block in a new variable $has_feature. * In ri_Para, set HasDescription set to the input document index when we encounter text before the first feature. * When writing a `heading' (ie, the table cell for a feature name) look for HasDescription and make an appropriate hyperlink. Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com> Release-acked-by: Juergen Gross <jgross@suse.com> --- docs/parse-support-md | 24 ++++++++++++++++++++++-- 1 file changed, 22 insertions(+), 2 deletions(-) diff --git a/docs/parse-support-md b/docs/parse-support-md index 6953930..653d216 100755 --- a/docs/parse-support-md +++ b/docs/parse-support-md @@ -35,6 +35,7 @@ our $toplevel_sectlist = new_sectlist(); # $sectlist->{KEY}{Key} = KEY # $sectlist->{KEY}{RealSect} = containing real section in @insections, so # $sectlist->{KEY}{RealSect}{HasCaveat}[VI] = trueish iff other in a Para +# $sectlist->{KEY}{RealSect}{HasDescription} = VI for some Emph in Para # $sectlist->{KEY}{RealSect}{Anchor} = value for < id="" > in the pandoc html # A $sectnode represents a single section from the original markdown # document. Its subsections are in Children. @@ -58,8 +59,10 @@ our @insections; # these next are only defined for real sections, not Status elements # $insections[]{Anchor} = string # $insections[]{HasCaveat} = array, $sectlist->{HasCaveat} will refer to this +# $insections[]{HasDescription} VI, likewise our $had_unknown; +our $had_feature; # adding new variable ? it must be reset in r_toplevel #---------- parsing ---------- @@ -78,13 +81,20 @@ sub ri_Header { Anchor => $id, Headline => $hl, HasCaveat => [], + HasDescription => undef, }; #print STDERR Dumper(\@insections); + $had_feature = 0; } sub ri_Para { - if (@insections) { - $insections[$#insections]{HasCaveat}[$version_index] = 1; + return unless @insections; + my $insection = $insections[$#insections]; + + if ($had_feature) { + $insection->{HasCaveat}[$version_index] = 1; + } else { + $insection->{HasDescription} //= $version_index; } }; @@ -92,6 +102,8 @@ sub parse_feature_entry ($) { my ($value) = @_; die unless @insections; + $had_feature = 1; + my $sectnode; my $realsect; foreach my $s (@insections) { @@ -183,6 +195,7 @@ sub r_toplevel ($) { @insections = (); $had_unknown = undef; + $had_feature = undef; foreach my $e (@$i) { next unless ref $e eq 'ARRAY'; @@ -346,7 +359,14 @@ sub write_output_row ($) { $span->('col', $maxdepth - $heading->{Depth} + 1) if !%{ $heading->{Children} }; o(' align="left">'); + my $end_a = ''; + my $desc_i = $heading->{RealSect}{HasDescription}; + if (defined $desc_i) { + o(docref_a $desc_i, $heading->{RealSect}); + $end_a= '</a>'; + } o($heading->{Headline}); + o($end_a); o('</th>'); } if (%{ $sectnode->{Children} }) { -- 2.1.4 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel ^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH 4/7] SUPPORT.md: Move descriptions up before Status info 2018-04-17 14:46 ` [PATCH v2 0/7] SUPPORT.md: Distinguish descriptions from caveats Ian Jackson ` (2 preceding siblings ...) 2018-04-17 14:46 ` [PATCH 3/7] SUPPORT.md, support matrix: Treat commentary before status as description Ian Jackson @ 2018-04-17 14:46 ` Ian Jackson 2018-04-17 14:47 ` [PATCH 5/7] SUPPORT.md: Document the new text ordering rule Ian Jackson ` (2 subsequent siblings) 6 siblings, 0 replies; 15+ messages in thread From: Ian Jackson @ 2018-04-17 14:46 UTC (permalink / raw) To: xen-devel; +Cc: Juergen Gross, Lars Kurth, Ian Jackson, George Dunlap This turns all the things which were treated as caveats, but which don't need to be footnoted in the matrix, into descriptions. For the benefit of the support matrix generator, this patch (or a version of it) should be backported to 4.10. Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com> Release-acked-by: Juergen Gross <jgross@suse.com> --- v2: Move definition of "PV Console (frontend) too" --- SUPPORT.md | 217 ++++++++++++++++++++++++++++++++----------------------------- 1 file changed, 113 insertions(+), 104 deletions(-) diff --git a/SUPPORT.md b/SUPPORT.md index 264b23f..3e3890b 100644 --- a/SUPPORT.md +++ b/SUPPORT.md @@ -58,32 +58,29 @@ for the definitions of the support status levels etc. ### ARM/GICv3 ITS - Status: Experimental - Extension to the GICv3 interrupt controller to support MSI. + Status: Experimental + ## Guest Type ### x86/PV - Status: Supported - Traditional Xen PV guest No hardware requirements -### x86/HVM + Status: Supported - Status, domU: Supported +### x86/HVM Fully virtualised guest using hardware virtualisation extensions Requires hardware virtualisation support (Intel VMX / AMD SVM) -### x86/PVH - Status, domU: Supported - Status, dom0: Experimental + +### x86/PVH PVH is a next-generation paravirtualized mode designed to take advantage of hardware virtualization support when possible. @@ -93,12 +90,15 @@ Requires hardware virtualisation support (Intel VMX / AMD SVM). Dom0 support requires an IOMMU (Intel VT-d / AMD IOMMU). -### ARM + Status, domU: Supported + Status, dom0: Experimental - Status: Supported +### ARM ARM only has one guest type at the moment + Status: Supported + ## Toolstack ### xl @@ -107,12 +107,12 @@ ARM only has one guest type at the moment ### Direct-boot kernel image format +Format which the toolstack accepts for direct-boot kernels + Supported, x86: bzImage, ELF Supported, ARM32: zImage Supported, ARM64: Image -Format which the toolstack accepts for direct-boot kernels - ### Dom0 init support for xl Status, SysV: Supported @@ -121,10 +121,10 @@ Format which the toolstack accepts for direct-boot kernels ### JSON output support for xl - Status: Experimental - Output of information in machine-parseable JSON format + Status: Experimental + ### Open vSwitch integration for xl Status, Linux: Supported @@ -157,17 +157,18 @@ Output of information in machine-parseable JSON format ### Hypervisor 'debug keys' - Status: Supported, not security supported - These are functions triggered either from the host serial console, or via the xl 'debug-keys' command, which cause Xen to dump various hypervisor state to the console. + Status: Supported, not security supported + ### Hypervisor synchronous console output (sync_console) +Xen command-line flag to force synchronous console output. + Status: Supported, not security supported -Xen command-line flag to force synchronous console output. Useful for debugging, but not suitable for production environments due to incurred overhead. @@ -179,56 +180,54 @@ Debugger to debug ELF guests ### Soft-reset for PV guests - Status: Supported - Soft-reset allows a new kernel to start 'from scratch' with a fresh VM state, but with all the memory from the previous state of the VM intact. This is primarily designed to allow "crash kernels", which can do core dumps of memory to help with debugging in the event of a crash. -### xentrace + Status: Supported - Status, x86: Supported +### xentrace Tool to capture Xen trace buffer data -### gcov + Status, x86: Supported - Status: Supported, Not security supported +### gcov Export hypervisor coverage data suitable for analysis by gcov or lcov. + Status: Supported, Not security supported + ## Memory Management ### Dynamic memory control - Status: Supported - Allows a guest to add or remove memory after boot-time. This is typically done by a guest kernel agent known as a "balloon driver". -### Populate-on-demand memory + Status: Supported - Status, x86 HVM: Supported +### Populate-on-demand memory This is a mechanism that allows normal operating systems with only a balloon driver to boot with memory < maxmem. -### Memory Sharing + Status, x86 HVM: Supported - Status, x86 HVM: Expermental +### Memory Sharing Allow sharing of identical pages between guests -### Memory Paging + Status, x86 HVM: Expermental - Status, x86 HVM: Experimenal +### Memory Paging Allow pages belonging to guests to be paged to disk -### Transcendent Memory + Status, x86 HVM: Experimenal - Status: Experimental +### Transcendent Memory Transcendent Memory (tmem) allows the creation of hypervisor memory pools which guests can use to store memory @@ -236,96 +235,100 @@ rather than caching in its own memory or swapping to disk. Having these in the hypervisor can allow more efficient aggregate use of memory across VMs. -### Alternative p2m + Status: Experimental - Status, x86 HVM: Tech Preview - Status, ARM: Tech Preview +### Alternative p2m Allows external monitoring of hypervisor memory by maintaining multiple physical to machine (p2m) memory mappings. + Status, x86 HVM: Tech Preview + Status, ARM: Tech Preview + ## Resource Management ### CPU Pools - Status: Supported - Groups physical cpus into distinct groups called "cpupools", with each pool having the capability of using different schedulers and scheduling properties. -### Credit Scheduler - Status: Supported +### Credit Scheduler + A weighted proportional fair share virtual CPU scheduler. This is the default scheduler. -### Credit2 Scheduler - Status: Supported +### Credit2 Scheduler + A general purpose scheduler for Xen, designed with particular focus on fairness, responsiveness, and scalability -### RTDS based Scheduler + Status: Supported - Status: Experimental +### RTDS based Scheduler A soft real-time CPU scheduler built to provide guaranteed CPU capacity to guest VMs on SMP hosts + Status: Experimental + ### ARINC653 Scheduler +A periodically repeating fixed timeslice scheduler. + Status: Supported -A periodically repeating fixed timeslice scheduler. Currently only single-vcpu domains are supported. ### Null Scheduler - Status: Experimental - A very simple, very static scheduling policy that always schedules the same vCPU(s) on the same pCPU(s). It is designed for maximum determinism and minimum overhead on embedded platforms. -### NUMA scheduler affinity + Status: Experimental - Status, x86: Supported +### NUMA scheduler affinity Enables NUMA aware scheduling in Xen + Status, x86: Supported + ## Scalability ### Super page support - Status, x86 HVM/PVH, HAP: Supported - Status, x86 HVM/PVH, Shadow, 2MiB: Supported - Status, ARM: Supported - NB that this refers to the ability of guests to have higher-level page table entries point directly to memory, improving TLB performance. On ARM, and on x86 in HAP mode, the guest has whatever support is enabled by the hardware. + +This feature is independent +of the ARM "page granularity" feature (see below). + + Status, x86 HVM/PVH, HAP: Supported + Status, x86 HVM/PVH, Shadow, 2MiB: Supported + Status, ARM: Supported + On x86 in shadow mode, only 2MiB (L2) superpages are available; furthermore, they do not have the performance characteristics of hardware superpages. -Also note is feature independent -of the ARM "page granularity" feature (see below). - ### x86/PVHVM - Status: Supported - This is a useful label for a set of hypervisor features which add paravirtualized functionality to HVM guests for improved performance and scalability. This includes exposing event channels to HVM guests. + Status: Supported + ## High Availability and Fault Tolerance ### Remus Fault Tolerance @@ -338,54 +341,54 @@ This includes exposing event channels to HVM guests. ### x86/vMCE - Status: Supported - Forward Machine Check Exceptions to appropriate guests + Status: Supported + ## Virtual driver support, guest side ### Blkfront +Guest-side driver capable of speaking the Xen PV block protocol + Status, Linux: Supported Status, FreeBSD: Supported, Security support external Status, NetBSD: Supported, Security support external Status, OpenBSD: Supported, Security support external Status, Windows: Supported -Guest-side driver capable of speaking the Xen PV block protocol - ### Netfront +Guest-side driver capable of speaking the Xen PV networking protocol + Status, Linux: Supported Status, FreeBSD: Supported, Security support external Status, NetBSD: Supported, Security support external Status, OpenBSD: Supported, Security support external Status, Windows: Supported -Guest-side driver capable of speaking the Xen PV networking protocol - ### PV Framebuffer (frontend) - Status, Linux (xen-fbfront): Supported - Guest-side driver capable of speaking the Xen PV Framebuffer protocol + Status, Linux (xen-fbfront): Supported + ### PV Console (frontend) +Guest-side driver capable of speaking the Xen PV console protocol + Status, Linux (hvc_xen): Supported Status, FreeBSD: Supported, Security support external Status, NetBSD: Supported, Security support external Status, Windows: Supported -Guest-side driver capable of speaking the Xen PV console protocol - ### PV keyboard (frontend) - Status, Linux (xen-kbdfront): Supported - Guest-side driver capable of speaking the Xen PV keyboard protocol. Note that the "keyboard protocol" includes mouse / pointer support as well. + Status, Linux (xen-kbdfront): Supported + ### PV USB (frontend) Status, Linux: Supported @@ -399,22 +402,22 @@ there is currently no xl support. ### PV TPM (frontend) - Status, Linux (xen-tpmfront): Tech Preview - Guest-side driver capable of speaking the Xen PV TPM protocol -### PV 9pfs frontend + Status, Linux (xen-tpmfront): Tech Preview - Status, Linux: Tech Preview +### PV 9pfs frontend Guest-side driver capable of speaking the Xen 9pfs protocol -### PVCalls (frontend) - Status, Linux: Tech Preview +### PVCalls (frontend) + Guest-side driver capable of making pv system calls + Status, Linux: Tech Preview + ## Virtual device support, host side For host-side virtual device support, @@ -423,6 +426,8 @@ unless otherwise noted. ### Blkback +Host-side implementations of the Xen PV block protocol. + Status, Linux (xen-blkback): Supported Status, QEMU (xen_disk), raw format: Supported Status, QEMU (xen_disk), qcow format: Supported @@ -433,42 +438,41 @@ unless otherwise noted. Status, Blktap2, raw format: Deprecated Status, Blktap2, vhd format: Deprecated -Host-side implementations of the Xen PV block protocol. Backends only support raw format unless otherwise specified. ### Netback +Host-side implementations of Xen PV network protocol + Status, Linux (xen-netback): Supported Status, FreeBSD (netback): Supported, Security support external Status, NetBSD (xennetback): Supported, Security support external -Host-side implementations of Xen PV network protocol - ### PV Framebuffer (backend) - Status, QEMU: Supported - Host-side implementation of the Xen PV framebuffer protocol -### PV Console (xenconsoled) + Status, QEMU: Supported - Status: Supported +### PV Console (xenconsoled) Host-side implementation of the Xen PV console protocol -### PV keyboard (backend) + Status: Supported - Status, QEMU: Supported +### PV keyboard (backend) Host-side implementation of the Xen PV keyboard protocol. Note that the "keyboard protocol" includes mouse / pointer support as well. -### PV USB (backend) - Status, QEMU: Supported +### PV USB (backend) + Host-side implementation of the Xen PV USB protocol + Status, QEMU: Supported + ### PV SCSI protocol (backend) Status, Linux: Experimental @@ -499,11 +503,11 @@ but has no xl support. ### Driver Domains - Status: Supported, with caveats - "Driver domains" means allowing non-Domain 0 domains with access to physical devices to act as back-ends. + Status: Supported, with caveats + See the appropriate "Device Passthrough" section for more information about security support. @@ -553,13 +557,13 @@ with dom0, driver domains, stub domains, domUs, and so on. ### x86/Nested PV - Status, x86 Xen HVM: Tech Preview - This means running a Xen hypervisor inside an HVM domain on a Xen system, with support for PV L2 guests only (i.e., hardware virtualization extensions not provided to the guest). + Status, x86 Xen HVM: Tech Preview + This works, but has performance limitations because the L1 dom0 can only access emulated L1 devices. @@ -568,19 +572,19 @@ but nobody has reported on performance. ### x86/Nested HVM - Status, x86 HVM: Experimental - This means providing hardware virtulization support to guest VMs allowing, for instance, a nested Xen to support both PV and HVM guests. It also implies support for other hypervisors, such as KVM, Hyper-V, Bromium, and so on as guests. -### vPMU + Status, x86 HVM: Experimental - Status, x86: Supported, Not security supported +### vPMU Virtual Performance Management Unit for HVM guests + Status, x86: Supported, Not security supported + Disabled by default (enable with hypervisor command line option). This feature is not security supported: see http://xenbits.xen.org/xsa/advisory-163.html @@ -604,14 +608,14 @@ when used to remove drivers and backends from domain 0 ### x86/Multiple IOREQ servers - Status: Experimental - An IOREQ server provides emulated devices to HVM and PVH guests. QEMU is normally the only IOREQ server, but Xen has support for multiple IOREQ servers. This allows for custom or proprietary device emulators to be used in addition to QEMU. + Status: Experimental + ### ARM/Non-PCI device passthrough Status: Supported, not security supported @@ -635,7 +639,11 @@ No support for QEMU backends in a 16K or 64K domain. ## Virtual Hardware, QEMU -These are devices available in HVM mode using a qemu devicemodel (the default). +This section describes supported devices available in HVM mode using a +qemu devicemodel (the default). + + Status: Support scope restricted + Note that other devices are available but not security supported. ### x86/Emulated platform devices (QEMU): @@ -685,9 +693,10 @@ See the section **Blkback** for image formats supported by QEMU. ### x86/HVM iPXE +Booting a guest via PXE. + Status: Supported, with caveats -Booting a guest via PXE. PXE inherently places full trust of the guest in the network, and so should only be used when the guest network is under the same administrative control @@ -695,17 +704,17 @@ as the guest itself. ### x86/HVM BIOS +Booting a guest via guest BIOS firmware + Status, SeaBIOS (qemu-xen): Supported Status, ROMBIOS (qemu-xen-traditional): Supported -Booting a guest via guest BIOS firmware - ### x86/HVM OVMF - Status, qemu-xen: Supported - OVMF firmware implements the UEFI boot protocol. + Status, qemu-xen: Supported + # Format and definitions This file contains prose, and machine-readable fragments. -- 2.1.4 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel ^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH 5/7] SUPPORT.md: Document the new text ordering rule 2018-04-17 14:46 ` [PATCH v2 0/7] SUPPORT.md: Distinguish descriptions from caveats Ian Jackson ` (3 preceding siblings ...) 2018-04-17 14:46 ` [PATCH 4/7] SUPPORT.md: Move descriptions up before Status info Ian Jackson @ 2018-04-17 14:47 ` Ian Jackson 2018-04-17 14:47 ` [PATCH 6/7] docs/parse-support.md: Add some newlines to the table output Ian Jackson 2018-04-17 14:47 ` [PATCH 7/7] docs/parse-support-md: Correctly handle footnotes for non-leaf sections Ian Jackson 6 siblings, 0 replies; 15+ messages in thread From: Ian Jackson @ 2018-04-17 14:47 UTC (permalink / raw) To: xen-devel; +Cc: Juergen Gross, Lars Kurth, Ian Jackson, George Dunlap Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com> Release-acked-by: Juergen Gross <jgross@suse.com> --- SUPPORT.md | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/SUPPORT.md b/SUPPORT.md index 3e3890b..9eb6958 100644 --- a/SUPPORT.md +++ b/SUPPORT.md @@ -725,6 +725,11 @@ The file is in markdown format. The machine-readable fragments are markdown literals containing RFC-822-like (deb822-like) data. +In each case, descriptions which expand on the name of a feature as +provided in the section heading, precede the Status indications. +Any paragraphs which follow the Status indication are caveats or +qualifications of the information provided in Status fields. + ## Keys found in the Feature Support subsections ### Status -- 2.1.4 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel ^ permalink raw reply related [flat|nested] 15+ messages in thread
* [PATCH 6/7] docs/parse-support.md: Add some newlines to the table output 2018-04-17 14:46 ` [PATCH v2 0/7] SUPPORT.md: Distinguish descriptions from caveats Ian Jackson ` (4 preceding siblings ...) 2018-04-17 14:47 ` [PATCH 5/7] SUPPORT.md: Document the new text ordering rule Ian Jackson @ 2018-04-17 14:47 ` Ian Jackson 2018-04-17 14:57 ` Juergen Gross 2018-04-17 14:47 ` [PATCH 7/7] docs/parse-support-md: Correctly handle footnotes for non-leaf sections Ian Jackson 6 siblings, 1 reply; 15+ messages in thread From: Ian Jackson @ 2018-04-17 14:47 UTC (permalink / raw) To: xen-devel; +Cc: Juergen Gross, Lars Kurth, Ian Jackson, George Dunlap This makes the result easier for humans to read. Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com> --- v2: New patch --- docs/parse-support-md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/parse-support-md b/docs/parse-support-md index 653d216..bbbb615 100755 --- a/docs/parse-support-md +++ b/docs/parse-support-md @@ -399,7 +399,7 @@ sub write_output_row ($) { } $st //= '-'; - o("<td$colspan>"); + o("\n<td$colspan>"); my $end_a = ''; if ($sectnode->{Key} eq 'release-support--xen-version') { o(sprintf '<a href="%s">', $version_urls[$i]); -- 2.1.4 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel ^ permalink raw reply related [flat|nested] 15+ messages in thread
* Re: [PATCH 6/7] docs/parse-support.md: Add some newlines to the table output 2018-04-17 14:47 ` [PATCH 6/7] docs/parse-support.md: Add some newlines to the table output Ian Jackson @ 2018-04-17 14:57 ` Juergen Gross 0 siblings, 0 replies; 15+ messages in thread From: Juergen Gross @ 2018-04-17 14:57 UTC (permalink / raw) To: Ian Jackson, xen-devel; +Cc: Lars Kurth, George Dunlap On 17/04/18 16:47, Ian Jackson wrote: > This makes the result easier for humans to read. > > Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com> Release-acked-by: Juergen Gross <jgross@suse.com> Juergen _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel ^ permalink raw reply [flat|nested] 15+ messages in thread
* [PATCH 7/7] docs/parse-support-md: Correctly handle footnotes for non-leaf sections 2018-04-17 14:46 ` [PATCH v2 0/7] SUPPORT.md: Distinguish descriptions from caveats Ian Jackson ` (5 preceding siblings ...) 2018-04-17 14:47 ` [PATCH 6/7] docs/parse-support.md: Add some newlines to the table output Ian Jackson @ 2018-04-17 14:47 ` Ian Jackson 2018-04-17 14:57 ` Juergen Gross 6 siblings, 1 reply; 15+ messages in thread From: Ian Jackson @ 2018-04-17 14:47 UTC (permalink / raw) To: xen-devel; +Cc: Juergen Gross, Lars Kurth, Ian Jackson, George Dunlap Non-leaf sections with footnotes must have a row of their own, for just that section, because footnotes only appear if there is status information. In that case, the footnote applies to only the rows for that section in the markdown document, ie that RealSect. And of course for a leaf section that is true too. So for footnoes we always want to use a rowspan of the number of Status elements in the section. So (i) calculate this in count_rows_sectlist and (ii) use it, instead of the total number of rows including all the subsections', when writing out the footnote ref. This bug has been present in this script since the beginning. Also, while we're here, suppress the rowspan if it would be 1. Reported-by: Lars Kurth <lars.kurth@citrix.com> Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com> --- v2: New patch Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com> --- docs/parse-support-md | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/docs/parse-support-md b/docs/parse-support-md index bbbb615..218e12b 100755 --- a/docs/parse-support-md +++ b/docs/parse-support-md @@ -296,7 +296,11 @@ sub count_rows_sectlist ($); sub count_rows_sectnode ($) { my ($sectnode) = @_; my $rows = 0; - $rows++ if $sectnode->{Status}; + $sectnode->{RealSect}{OwnRows} //= 0; + if ($sectnode->{Status}) { + $rows++; + $sectnode->{RealSect}{OwnRows}++; + } $rows += count_rows_sectlist $sectnode->{Children}; $sectnode->{Rows} = $rows; $sectnode->{RealSect}{Rows} = $rows; @@ -306,6 +310,7 @@ sub count_rows_sectnode ($) { # Now we have # $sectnode->{Rows} # $sectnode->{RealSect}{Rows} +# $sectnode->{RealSect}{OwnRows} sub count_rows_sectlist ($) { my ($sectlist) = @_; @@ -388,8 +393,10 @@ sub write_output_row ($) { $colspan= ' colspan="2"'; if ($sectnode->{RealSect}{HasCaveat}[$i] && $st && $sectnode->{RealSect}{Anchor}) { - my $rows = $sectnode->{RealSect}{Rows}; - $nextcell = sprintf '<td rowspan=%d>', $rows; + my $rows = $sectnode->{RealSect}{OwnRows}; + $nextcell = '<td'; + $nextcell .= sprintf ' rowspan=%d', $rows if $rows>1; + $nextcell .= '>'; $nextcell .= docref_a $i, $sectnode->{RealSect}; $nextcell .= '[*]</a>'; $nextcell .= '</td>'; -- 2.1.4 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel ^ permalink raw reply related [flat|nested] 15+ messages in thread
* Re: [PATCH 7/7] docs/parse-support-md: Correctly handle footnotes for non-leaf sections 2018-04-17 14:47 ` [PATCH 7/7] docs/parse-support-md: Correctly handle footnotes for non-leaf sections Ian Jackson @ 2018-04-17 14:57 ` Juergen Gross 0 siblings, 0 replies; 15+ messages in thread From: Juergen Gross @ 2018-04-17 14:57 UTC (permalink / raw) To: Ian Jackson, xen-devel; +Cc: Lars Kurth, George Dunlap On 17/04/18 16:47, Ian Jackson wrote: > Non-leaf sections with footnotes must have a row of their own, for > just that section, because footnotes only appear if there is status > information. > > In that case, the footnote applies to only the rows for that section > in the markdown document, ie that RealSect. > > And of course for a leaf section that is true too. > > So for footnoes we always want to use a rowspan of the number of > Status elements in the section. So (i) calculate this in > count_rows_sectlist and (ii) use it, instead of the total number of > rows including all the subsections', when writing out the footnote > ref. > > This bug has been present in this script since the beginning. > > Also, while we're here, suppress the rowspan if it would be 1. > > Reported-by: Lars Kurth <lars.kurth@citrix.com> > Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com> Release-acked-by: Juergen Gross <jgross@suse.com> Juergen _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel ^ permalink raw reply [flat|nested] 15+ messages in thread
end of thread, other threads:[~2018-04-17 14:57 UTC | newest] Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2018-04-12 23:07 broken build on staging docs Doug Goldstein 2018-04-13 13:58 ` [PATCH] docs/gen-html-index: Make HTML::TreeBuilder::XPath optional again Ian Jackson 2018-04-13 16:00 ` Doug Goldstein 2018-04-13 16:28 ` Ian Jackson 2018-04-13 14:25 ` broken build on staging docs Ian Jackson 2018-04-17 14:46 ` [PATCH v2 0/7] SUPPORT.md: Distinguish descriptions from caveats Ian Jackson 2018-04-17 14:46 ` [PATCH 1/7] docs/parse-support-md: internals: Introduce docref_a Ian Jackson 2018-04-17 14:46 ` [PATCH 2/7] docs/parse-support-md: internals: Rename HasText to HasCaveat Ian Jackson 2018-04-17 14:46 ` [PATCH 3/7] SUPPORT.md, support matrix: Treat commentary before status as description Ian Jackson 2018-04-17 14:46 ` [PATCH 4/7] SUPPORT.md: Move descriptions up before Status info Ian Jackson 2018-04-17 14:47 ` [PATCH 5/7] SUPPORT.md: Document the new text ordering rule Ian Jackson 2018-04-17 14:47 ` [PATCH 6/7] docs/parse-support.md: Add some newlines to the table output Ian Jackson 2018-04-17 14:57 ` Juergen Gross 2018-04-17 14:47 ` [PATCH 7/7] docs/parse-support-md: Correctly handle footnotes for non-leaf sections Ian Jackson 2018-04-17 14:57 ` Juergen Gross
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