[libvirt] [PATCH v4 09/14] qemu: Introduce pr_helper to qemu.conf
Just like we allow users overriding path to bridge-helper
detected at compile time we can allow them to override path to
qemu-pr-helper.
Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com>
---
m4/virt-driver-qemu.m4 | 5 +++++
src/qemu/libvirtd_qemu.aug | 1 +
src/qemu/qemu.conf | 4 ++++
src/qemu/qemu_conf.c | 7 ++++++-
src/qemu/qemu_conf.h | 1 +
src/qemu/test_libvirtd_qemu.aug.in | 1 +
6 files changed, 18 insertions(+), 1 deletion(-)
diff --git a/m4/virt-driver-qemu.m4 b/m4/virt-driver-qemu.m4
index b9bafdab90..80e1d3ad46 100644
--- a/m4/virt-driver-qemu.m4
+++ b/m4/virt-driver-qemu.m4
@@ -57,6 +57,11 @@ AC_DEFUN([LIBVIRT_DRIVER_CHECK_QEMU], [
[/usr/libexec:/usr/lib/qemu:/usr/lib])
AC_DEFINE_UNQUOTED([QEMU_BRIDGE_HELPER], ["$QEMU_BRIDGE_HELPER"],
[QEMU bridge helper])
+ AC_PATH_PROG([QEMU_PR_HELPER], [qemu-pr-helper],
+ [/usr/bin/qemu-pr-helper],
+ [/usr/bin:/usr/libexec])
+ AC_DEFINE_UNQUOTED([QEMU_PR_HELPER], ["$QEMU_PR_HELPER"],
+ [QEMU PR helper])
])
AC_DEFUN([LIBVIRT_DRIVER_RESULT_QEMU], [
diff --git a/src/qemu/libvirtd_qemu.aug b/src/qemu/libvirtd_qemu.aug
index c19bf3a43a..2dc16e91fd 100644
--- a/src/qemu/libvirtd_qemu.aug
+++ b/src/qemu/libvirtd_qemu.aug
@@ -86,6 +86,7 @@ module Libvirtd_qemu =
let process_entry = str_entry "hugetlbfs_mount"
| bool_entry "clear_emulator_capabilities"
| str_entry "bridge_helper"
+ | str_entry "pr_helper"
| bool_entry "set_process_name"
| int_entry "max_processes"
| int_entry "max_files"
diff --git a/src/qemu/qemu.conf b/src/qemu/qemu.conf
index 07eab7efff..30fdd54e2c 100644
--- a/src/qemu/qemu.conf
+++ b/src/qemu/qemu.conf
@@ -775,3 +775,7 @@
# This directory is used for memoryBacking source if configured as file.
# NOTE: big files will be stored here
#memory_backing_dir = "/var/lib/libvirt/qemu/ram"
+
+# Path to the SCSI persistent reservations helper. This helper is
+# used whenever <reservations/> are enabled for SCSI disks.
+#pr_helper = "/usr/libexec/qemu-pr-helper"
diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index 36cf3a281c..8c69dbe75c 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -307,7 +307,8 @@ virQEMUDriverConfigPtr virQEMUDriverConfigNew(bool privileged)
goto error;
}
- if (VIR_STRDUP(cfg->bridgeHelperName, QEMU_BRIDGE_HELPER) < 0)
+ if (VIR_STRDUP(cfg->bridgeHelperName, QEMU_BRIDGE_HELPER) < 0 ||
+ VIR_STRDUP(cfg->prHelperName, QEMU_PR_HELPER) < 0)
goto error;
cfg->clearEmulatorCapabilities = true;
@@ -392,6 +393,7 @@ static void virQEMUDriverConfigDispose(void *obj)
}
VIR_FREE(cfg->hugetlbfs);
VIR_FREE(cfg->bridgeHelperName);
+ VIR_FREE(cfg->prHelperName);
VIR_FREE(cfg->saveImageFormat);
VIR_FREE(cfg->dumpImageFormat);
@@ -759,6 +761,9 @@ int virQEMUDriverConfigLoadFile(virQEMUDriverConfigPtr cfg,
if (virConfGetValueString(conf, "bridge_helper",
&cfg->bridgeHelperName) < 0)
goto cleanup;
+ if (virConfGetValueString(conf, "pr_helper", &cfg->prHelperName)
< 0)
+ goto cleanup;
+
if (virConfGetValueBool(conf, "mac_filter", &cfg->macFilter) <
0)
goto cleanup;
diff --git a/src/qemu/qemu_conf.h b/src/qemu/qemu_conf.h
index e1ad5463f3..7a63780c48 100644
--- a/src/qemu/qemu_conf.h
+++ b/src/qemu/qemu_conf.h
@@ -153,6 +153,7 @@ struct _virQEMUDriverConfig {
size_t nhugetlbfs;
char *bridgeHelperName;
+ char *prHelperName;
bool macFilter;
diff --git a/src/qemu/test_libvirtd_qemu.aug.in b/src/qemu/test_libvirtd_qemu.aug.in
index 688e5b9fda..c0efae47bd 100644
--- a/src/qemu/test_libvirtd_qemu.aug.in
+++ b/src/qemu/test_libvirtd_qemu.aug.in
@@ -100,3 +100,4 @@ module Test_libvirtd_qemu =
{ "1" = "mount" }
}
{ "memory_backing_dir" = "/var/lib/libvirt/qemu/ram" }
+{ "pr_helper" = "/usr/libexec/qemu-pr-helper" }
--
2.16.1