12:45 p.m.
This is mostly useful to macOS users (see [1] for background).
The first two commits are fixes for small issues discovered while
looking into this.
Test pipeline: https://gitlab.com/abologna/libvirt/-/pipelines/409294109
[1] https://gitlab.com/libvirt/libvirt/-/issues/168
Andrea Bolognani (5):
meson: Define qemu_moddir correctly
qemu: Set QEMU data location correctly
qemu: Rename interop locations
meson: Introduce qemu_datadir option
spec: Explicitly provide locations for QEMU data
libvirt.spec.in | 6 ++++++
meson.build | 8 +++++++-
meson_options.txt | 1 +
src/qemu/qemu_interop_config.c | 11 +++++------
4 files changed, 19 insertions(+), 7 deletions(-)
--
2.31.1
12:45 p.m.
New subject: [libvirt PATCH 1/5] meson: Define qemu_moddir correctly
We can't hardcode /usr here, because the user might have
configured whatever arbitrary prefix.
Everything appeared to be okay because when joining paths
Meson will drop any component that precedes an absolute path
and libdir happens to be absolute, but we should still do
things correctly instead of relying on this.
Fixes: 2ad009eadde27491ff4248f481560953776b2a87
Signed-off-by: Andrea Bolognani <abologna(a)redhat.com>
---
meson.build | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/meson.build b/meson.build
index dd46572365..e1e4621868 100644
--- a/meson.build
+++ b/meson.build
@@ -1681,7 +1681,7 @@ if not get_option('driver_qemu').disabled()
qemu_moddir = get_option('qemu_moddir')
if qemu_moddir == ''
- qemu_moddir = '/usr' / libdir / 'qemu'
+ qemu_moddir = libdir / 'qemu'
endif
conf.set_quoted('QEMU_MODDIR', qemu_moddir)
--
2.31.1
12:45 p.m.
New subject: [libvirt PATCH 2/5] qemu: Set QEMU data location correctly
While datadir must live under prefix, there is no requirement
that its name must necessarily be "share": a different,
arbitrary name could have been provided by the user.
Fixes: 3c876d2428ee3abbb11a50698a9e225cffb72cbc
Signed-off-by: Andrea Bolognani <abologna(a)redhat.com>
---
src/qemu/qemu_interop_config.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/qemu/qemu_interop_config.c b/src/qemu/qemu_interop_config.c
index 848e8f7381..fe1bd44b41 100644
--- a/src/qemu/qemu_interop_config.c
+++ b/src/qemu/qemu_interop_config.c
@@ -80,7 +80,7 @@ qemuBuildFileList(GHashTable *files, const char *dir)
return 0;
}
-#define QEMU_SYSTEM_LOCATION PREFIX "/share/qemu"
+#define QEMU_SYSTEM_LOCATION DATADIR "/qemu"
#define QEMU_ETC_LOCATION SYSCONFDIR "/qemu"
int
--
2.31.1
12:45 p.m.
New subject: [libvirt PATCH 3/5] qemu: Rename interop locations
Use abstract names that more closely match the Meson
nomenclature.
Signed-off-by: Andrea Bolognani <abologna(a)redhat.com>
---
src/qemu/qemu_interop_config.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/src/qemu/qemu_interop_config.c b/src/qemu/qemu_interop_config.c
index fe1bd44b41..d3f1f34ecf 100644
--- a/src/qemu/qemu_interop_config.c
+++ b/src/qemu/qemu_interop_config.c
@@ -80,8 +80,8 @@ qemuBuildFileList(GHashTable *files, const char *dir)
return 0;
}
-#define QEMU_SYSTEM_LOCATION DATADIR "/qemu"
-#define QEMU_ETC_LOCATION SYSCONFDIR "/qemu"
+#define QEMU_DATADIR DATADIR "/qemu"
+#define QEMU_CONFDIR SYSCONFDIR "/qemu"
int
qemuInteropFetchConfigs(const char *name,
@@ -91,8 +91,8 @@ qemuInteropFetchConfigs(const char *name,
g_autoptr(GHashTable) files = virHashNew(g_free);
g_autofree char *homeConfig = NULL;
g_autofree char *xdgConfig = NULL;
- g_autofree char *sysLocation = virFileBuildPath(QEMU_SYSTEM_LOCATION, name, NULL);
- g_autofree char *etcLocation = virFileBuildPath(QEMU_ETC_LOCATION, name, NULL);
+ g_autofree char *dataLocation = virFileBuildPath(QEMU_DATADIR, name, NULL);
+ g_autofree char *confLocation = virFileBuildPath(QEMU_CONFDIR, name, NULL);
g_autofree virHashKeyValuePair *pairs = NULL;
size_t npairs;
virHashKeyValuePair *tmp = NULL;
@@ -117,10 +117,10 @@ qemuInteropFetchConfigs(const char *name,
homeConfig = g_strdup_printf("%s/qemu/%s", xdgConfig, name);
}
- if (qemuBuildFileList(files, sysLocation) < 0)
+ if (qemuBuildFileList(files, dataLocation) < 0)
return -1;
- if (qemuBuildFileList(files, etcLocation) < 0)
+ if (qemuBuildFileList(files, confLocation) < 0)
return -1;
if (homeConfig &&
--
2.31.1
12:45 p.m.
New subject: [libvirt PATCH 4/5] meson: Introduce qemu_datadir option
There is no guarantee that QEMU and libvirt have been configured
with the same prefix.
In particular, Homebrew on macOS will pass a different, private
prefix for each package version and then use symlinks to make
the files for a specific version appear in the usual locations.
This works perfectly fine as long as one package doesn't try to
go poking around another package's data - which is exactly what
libvirt needs to do in order to read and parse the QEMU interop
data.
qemu_datadir can now be explicitly provided to make this and
other uncommon scenarios work. The common scenario, where QEMU
and libvirt both use the same prefix, is unaffected.
https://gitlab.com/libvirt/libvirt/-/issues/168
Signed-off-by: Andrea Bolognani <abologna(a)redhat.com>
---
meson.build | 6 ++++++
meson_options.txt | 1 +
src/qemu/qemu_interop_config.c | 1 -
3 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/meson.build b/meson.build
index e1e4621868..9022bcfdc9 100644
--- a/meson.build
+++ b/meson.build
@@ -1685,6 +1685,12 @@ if not get_option('driver_qemu').disabled()
endif
conf.set_quoted('QEMU_MODDIR', qemu_moddir)
+ qemu_datadir = get_option('qemu_datadir')
+ if qemu_datadir == ''
+ qemu_datadir = datadir / 'qemu'
+ endif
+ conf.set_quoted('QEMU_DATADIR', qemu_datadir)
+
if host_machine.system() in [ 'freebsd', 'darwin' ]
default_qemu_user = 'root'
default_qemu_group = 'wheel'
diff --git a/meson_options.txt b/meson_options.txt
index 859ed36b8f..5b43cdbd6b 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -62,6 +62,7 @@ option('driver_qemu', type: 'feature', value:
'auto', description: 'QEMU/KVM dri
option('qemu_user', type: 'string', value: '', description:
'username to run QEMU system instance as')
option('qemu_group', type: 'string', value: '', description:
'groupname to run QEMU system instance as')
option('qemu_moddir', type: 'string', value: '', description:
'set the directory where QEMU modules are located')
+option('qemu_datadir', type: 'string', value: '', description:
'set the directory where QEMU shared data is located')
option('driver_remote', type: 'feature', value: 'auto',
description: 'remote driver')
option('remote_default_mode', type: 'combo', choices: ['legacy',
'direct'], value: 'direct', description: 'remote driver default
mode')
option('driver_secrets', type: 'feature', value: 'auto',
description: 'local secrets management driver')
diff --git a/src/qemu/qemu_interop_config.c b/src/qemu/qemu_interop_config.c
index d3f1f34ecf..24db722c0b 100644
--- a/src/qemu/qemu_interop_config.c
+++ b/src/qemu/qemu_interop_config.c
@@ -80,7 +80,6 @@ qemuBuildFileList(GHashTable *files, const char *dir)
return 0;
}
-#define QEMU_DATADIR DATADIR "/qemu"
#define QEMU_CONFDIR SYSCONFDIR "/qemu"
int
--
2.31.1
12:45 p.m.
New subject: [libvirt PATCH 5/5] spec: Explicitly provide locations for QEMU data
These are the defaults, but we prefer to be explicit.
Signed-off-by: Andrea Bolognani <abologna(a)redhat.com>
---
libvirt.spec.in | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/libvirt.spec.in b/libvirt.spec.in
index 5f1773ef93..80770a41bb 100644
--- a/libvirt.spec.in
+++ b/libvirt.spec.in
@@ -190,6 +190,10 @@
%define qemu_user qemu
%define qemu_group qemu
+# Locations for QEMU data
+%define qemu_moddir %{_libdir}/qemu
+%define qemu_datadir %{_datadir}/qemu
+
# RHEL releases provide stable tool chains and so it is safe to turn
# compiler warning into errors without being worried about frequent
@@ -1160,6 +1164,8 @@ export SOURCE_DATE_EPOCH=$(stat --printf='%Y'
%{_specdir}/%{name}.spec)
%{arg_packager_version} \
-Dqemu_user=%{qemu_user} \
-Dqemu_group=%{qemu_group} \
+ -Dqemu_moddir=%{qemu_moddir} \
+ -Dqemu_datadir=%{qemu_datadir} \
-Dtls_priority=%{tls_priority} \
%{?enable_werror} \
-Dexpensive_tests=enabled \
--
2.31.1
6:52 a.m.
On a Monday in 2021, Andrea Bolognani wrote:
This is mostly useful to macOS users (see [1] for background).
The first two commits are fixes for small issues discovered while
looking into this.
Test pipeline: https://gitlab.com/abologna/libvirt/-/pipelines/409294109
[1] https://gitlab.com/libvirt/libvirt/-/issues/168
Andrea Bolognani (5):
meson: Define qemu_moddir correctly
qemu: Set QEMU data location correctly
qemu: Rename interop locations
meson: Introduce qemu_datadir option
spec: Explicitly provide locations for QEMU data
libvirt.spec.in | 6 ++++++
meson.build | 8 +++++++-
meson_options.txt | 1 +
src/qemu/qemu_interop_config.c | 11 +++++------
4 files changed, 19 insertions(+), 7 deletions(-)
Reviewed-by: Ján Tomko <jtomko(a)redhat.com>
Jano
1135
days inactive
1138
days old
6 comments
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participants (2)
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