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-rw-r--r--docs/conf.py2
-rw-r--r--docs/devel/build-system.rst6
-rw-r--r--docs/meson.build46
-rw-r--r--docs/sphinx/kerneldoc.py2
-rw-r--r--docs/system/cpu-models-mips.rst.inc10
5 files changed, 58 insertions, 8 deletions
diff --git a/docs/conf.py b/docs/conf.py
index 00e1b750e2..e584f68393 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -241,7 +241,7 @@ texinfo_documents = [
 # We use paths starting from qemu_docdir here so that you can run
 # sphinx-build from anywhere and the kerneldoc extension can still
 # find everything.
-kerneldoc_bin = os.path.join(qemu_docdir, '../scripts/kernel-doc')
+kerneldoc_bin = ['perl', os.path.join(qemu_docdir, '../scripts/kernel-doc')]
 kerneldoc_srctree = os.path.join(qemu_docdir, '..')
 hxtool_srctree = os.path.join(qemu_docdir, '..')
 qapidoc_srctree = os.path.join(qemu_docdir, '..')
diff --git a/docs/devel/build-system.rst b/docs/devel/build-system.rst
index 2ee368fad6..6fcf8854b7 100644
--- a/docs/devel/build-system.rst
+++ b/docs/devel/build-system.rst
@@ -404,10 +404,8 @@ Built by Meson:
 Built by Makefile:
 
 `Makefile.ninja`
-  A Makefile conversion of the build rules in build.ninja.  The conversion
-  is straightforward and, were it necessary to debug the rules produced
-  by Meson, it should be enough to look at build.ninja.  The conversion
-  is performed by scripts/ninjatool.py.
+  A Makefile include that bridges to ninja for the actual build.  The
+  Makefile is mostly a list of targets that Meson included in build.ninja.
 
 `Makefile.mtest`
   The Makefile definitions that let "make check" run tests defined in
diff --git a/docs/meson.build b/docs/meson.build
index 0340d489ac..8c222f96bb 100644
--- a/docs/meson.build
+++ b/docs/meson.build
@@ -1,4 +1,50 @@
+if get_option('sphinx_build') == ''
+  sphinx_build = find_program(['sphinx-build-3', 'sphinx-build'],
+                              required: get_option('docs'))
+else
+  sphinx_build = find_program(get_option('sphinx_build'),
+                              required: get_option('docs'))
+endif
+
+# Check if tools are available to build documentation.
+build_docs = false
+if sphinx_build.found()
+  SPHINX_ARGS = [sphinx_build]
+  # If we're making warnings fatal, apply this to Sphinx runs as well
+  if get_option('werror')
+    SPHINX_ARGS += [ '-W' ]
+  endif
+
+  # This is a bit awkward but works: create a trivial document and
+  # try to run it with our configuration file (which enforces a
+  # version requirement). This will fail if sphinx-build is too old.
+  run_command('mkdir', ['-p', tmpdir / 'sphinx'])
+  run_command('touch', [tmpdir / 'sphinx/index.rst'])
+  sphinx_build_test_out = run_command(SPHINX_ARGS + [
+    '-c', meson.current_source_dir(),
+    '-b', 'html', tmpdir / 'sphinx',
+    tmpdir / 'sphinx/out'])
+  build_docs = (sphinx_build_test_out.returncode() == 0)
+
+  if not build_docs
+    warning('@0@ exists but it is either too old or uses too old a Python version'.format(get_option('sphinx_build')))
+    if get_option('docs').enabled()
+      error('Install a Python 3 version of python-sphinx')
+    endif
+  endif
+endif
+
 if build_docs
+  SPHINX_ARGS += ['-Dversion=' + meson.project_version(), '-Drelease=' + config_host['PKGVERSION']]
+
+  sphinx_extn_depends = [ meson.source_root() / 'docs/sphinx/depfile.py',
+                          meson.source_root() / 'docs/sphinx/hxtool.py',
+                          meson.source_root() / 'docs/sphinx/kerneldoc.py',
+                          meson.source_root() / 'docs/sphinx/kernellog.py',
+                          meson.source_root() / 'docs/sphinx/qapidoc.py',
+                          meson.source_root() / 'docs/sphinx/qmp_lexer.py',
+                          qapi_gen_depends ]
+
   configure_file(output: 'index.html',
                  input: files('index.html.in'),
                  configuration: {'VERSION': meson.project_version()},
diff --git a/docs/sphinx/kerneldoc.py b/docs/sphinx/kerneldoc.py
index 3e87940206..3ac277d162 100644
--- a/docs/sphinx/kerneldoc.py
+++ b/docs/sphinx/kerneldoc.py
@@ -67,7 +67,7 @@ class KernelDocDirective(Directive):
 
     def run(self):
         env = self.state.document.settings.env
-        cmd = [env.config.kerneldoc_bin, '-rst', '-enable-lineno']
+        cmd = env.config.kerneldoc_bin + ['-rst', '-enable-lineno']
 
         filename = env.config.kerneldoc_srctree + '/' + self.arguments[0]
         export_file_patterns = []
diff --git a/docs/system/cpu-models-mips.rst.inc b/docs/system/cpu-models-mips.rst.inc
index 499b5b6fed..02cc4bb884 100644
--- a/docs/system/cpu-models-mips.rst.inc
+++ b/docs/system/cpu-models-mips.rst.inc
@@ -48,11 +48,17 @@ across all desired hosts.
 ``I6400``
     MIPS64 Processor (Release 6, 2014)
 
+``Loongson-2E``
+    MIPS64 Processor (Loongson 2, 2006)
+
 ``Loongson-2F``
     MIPS64 Processor (Loongson 2, 2008)
 
-``Loongson-2E``
-    MIPS64 Processor (Loongson 2, 2006)
+``Loongson-3A1000``
+    MIPS64 Processor (Loongson 3, 2010)
+
+``Loongson-3A4000``
+    MIPS64 Processor (Loongson 3, 2018)
 
 ``mips64dspr2``
     MIPS64 Processor (Release 2, 2006)