Add new parameter memory_backing_dir where files will be stored when
memoryBacking
source is selected as file.
Value is stored inside char* memoryBackingDir
---
src/qemu/libvirtd_qemu.aug | 3 +++
src/qemu/qemu.conf | 4 ++++
src/qemu/qemu_conf.c | 9 +++++++++
src/qemu/qemu_conf.h | 2 ++
src/qemu/test_libvirtd_qemu.aug.in | 1 +
5 files changed, 19 insertions(+)
diff --git a/src/qemu/libvirtd_qemu.aug b/src/qemu/libvirtd_qemu.aug
index de723b2..82bae9e 100644
--- a/src/qemu/libvirtd_qemu.aug
+++ b/src/qemu/libvirtd_qemu.aug
@@ -109,6 +109,8 @@ module Libvirtd_qemu =
let gluster_debug_level_entry = int_entry "gluster_debug_level"
+ let memory_entry = str_entry "memory_backing_dir"
+
(* Each entry in the config is one of the following ... *)
let entry = default_tls_entry
| vnc_entry
@@ -125,6 +127,7 @@ module Libvirtd_qemu =
| log_entry
| nvram_entry
| gluster_debug_level_entry
+ | memory_entry
let comment = [ label "#comment" . del /#[ \t]*/ "# " . store /([^
\t\n][^\n]*)?/ . del /\n/ "\n" ]
let empty = [ label "#empty" . eol ]
diff --git a/src/qemu/qemu.conf b/src/qemu/qemu.conf
index a8cd369..97d769d 100644
--- a/src/qemu/qemu.conf
+++ b/src/qemu/qemu.conf
@@ -673,3 +673,7 @@
# devices entries throughout the domain lifetime. This namespace is turned on
# by default.
#namespaces = [ "mount" ]
+
+# 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"
diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index 6613d59..0223a95 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -186,6 +186,8 @@ virQEMUDriverConfigPtr virQEMUDriverConfigNew(bool
privileged)
goto error;
if (virAsprintf(&cfg->nvramDir, "%s/nvram", cfg->libDir) < 0)
goto error;
+ if (virAsprintf(&cfg->memoryBackingDir, "%s/ram", cfg->libDir) < 0)
+ goto error;
} else {
char *rundir;
char *cachedir;
@@ -231,6 +233,8 @@ virQEMUDriverConfigPtr virQEMUDriverConfigNew(bool
privileged)
if (virAsprintf(&cfg->nvramDir,
"%s/qemu/nvram", cfg->configBaseDir) < 0)
goto error;
+ if (virAsprintf(&cfg->memoryBackingDir, "%s/qemu/ram",
cfg->configBaseDir) < 0)
+ goto error;
}
if (virAsprintf(&cfg->configDir, "%s/qemu", cfg->configBaseDir) < 0)
@@ -408,6 +412,8 @@ static void virQEMUDriverConfigDispose(void *obj)
VIR_FREE(cfg->lockManagerName);
virFirmwareFreeList(cfg->firmwares, cfg->nfirmwares);
+
+ VIR_FREE(cfg->memoryBackingDir);
}
@@ -835,6 +841,9 @@ int virQEMUDriverConfigLoadFile(virQEMUDriverConfigPtr cfg,
}
}
+ if (virConfGetValueString(conf, "memory_backing_dir",
&cfg->memoryBackingDir) < 0)
+ goto cleanup;
+
ret = 0;
cleanup:
diff --git a/src/qemu/qemu_conf.h b/src/qemu/qemu_conf.h
index 92a7a50..91904ed 100644
--- a/src/qemu/qemu_conf.h
+++ b/src/qemu/qemu_conf.h
@@ -195,6 +195,8 @@ struct _virQEMUDriverConfig {
virFirmwarePtr *firmwares;
size_t nfirmwares;
unsigned int glusterDebugLevel;
+
+ char *memoryBackingDir;
};
/* Main driver state */
diff --git a/src/qemu/test_libvirtd_qemu.aug.in
b/src/qemu/test_libvirtd_qemu.aug.in
index a749f09..bd25235 100644
--- a/src/qemu/test_libvirtd_qemu.aug.in
+++ b/src/qemu/test_libvirtd_qemu.aug.in
@@ -94,3 +94,4 @@ module Test_libvirtd_qemu =
{ "namespaces"
{ "1" = "mount" }
}
+{ "memory_backing_dir" = "/var/lib/libvirt/qemu/ram" }
--
2.7.4
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