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[Qemu-devel] [PATCH 6/7] NUMA: add hmp command set-mpol
From: |
Wanlong Gao |
Subject: |
[Qemu-devel] [PATCH 6/7] NUMA: add hmp command set-mpol |
Date: |
Tue, 18 Jun 2013 16:09:50 +0800 |
Add hmp command set-mpol to set host memory policy for a guest
NUMA node. Then we can also set node's memory policy using
the monitor command like:
(qemu) set-mpol 0 membind 0-1
Signed-off-by: Wanlong Gao <address@hidden>
---
hmp-commands.hx | 16 ++++++++++++++++
hmp.c | 22 ++++++++++++++++++++++
hmp.h | 1 +
3 files changed, 39 insertions(+)
diff --git a/hmp-commands.hx b/hmp-commands.hx
index 915b0d1..fd3505e 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -1567,6 +1567,22 @@ Executes a qemu-io command on the given block device.
ETEXI
{
+ .name = "set-mpol",
+ .args_type = "nodeid:i,mpol:s?,nodemask:s?",
+ .params = "nodeid [mpol] [nodemask]",
+ .help = "set host memory policy for a guest NUMA node",
+ .mhandler.cmd = hmp_set_mpol,
+ },
+
+STEXI
address@hidden set-mpol @var{nodeid} @var{mpol} @var{nodemask}
address@hidden set-mpol
+
+Set host memory policy for a guest NUMA node
+
+ETEXI
+
+ {
.name = "info",
.args_type = "item:s?",
.params = "[subcommand]",
diff --git a/hmp.c b/hmp.c
index 494a9aa..2e5315e 100644
--- a/hmp.c
+++ b/hmp.c
@@ -1464,3 +1464,25 @@ void hmp_qemu_io(Monitor *mon, const QDict *qdict)
hmp_handle_error(mon, &err);
}
+
+void hmp_set_mpol(Monitor *mon, const QDict *qdict)
+{
+ Error *local_err = NULL;
+ bool has_mpol = true;
+ bool has_nodemask = true;
+
+ uint64_t nodeid = qdict_get_int(qdict, "nodeid");
+ const char *mpol = qdict_get_try_str(qdict, "mpol");
+ const char *nodemask = qdict_get_try_str(qdict, "nodemask");
+
+ if (mpol == NULL) {
+ has_mpol = false;
+ }
+
+ if (nodemask == NULL) {
+ has_nodemask = false;
+ }
+
+ qmp_set_mpol(nodeid, has_mpol, mpol, has_nodemask, nodemask, &local_err);
+ hmp_handle_error(mon, &local_err);
+}
diff --git a/hmp.h b/hmp.h
index 56d2e92..81f631b 100644
--- a/hmp.h
+++ b/hmp.h
@@ -86,5 +86,6 @@ void hmp_nbd_server_stop(Monitor *mon, const QDict *qdict);
void hmp_chardev_add(Monitor *mon, const QDict *qdict);
void hmp_chardev_remove(Monitor *mon, const QDict *qdict);
void hmp_qemu_io(Monitor *mon, const QDict *qdict);
+void hmp_set_mpol(Monitor *mon, const QDict *qdict);
#endif
--
1.8.3.rc2.10.g0c2b1cf
- [Qemu-devel] [PATCH 4/7] NUMA: set guest numa nodes memory policy, (continued)
- [Qemu-devel] [PATCH 4/7] NUMA: set guest numa nodes memory policy, Wanlong Gao, 2013/06/18
- [Qemu-devel] [PATCH 1/7] Add numa_info structure to contain numa nodes info, Wanlong Gao, 2013/06/18
- [Qemu-devel] [PATCH 3/7] NUMA: parse guest numa nodes memory policy, Wanlong Gao, 2013/06/18
- Re: [Qemu-devel] [PATCH 3/7] NUMA: parse guest numa nodes memory policy, Paolo Bonzini, 2013/06/18
- Re: [Qemu-devel] [PATCH 3/7] NUMA: parse guest numa nodes memory policy, Wanlong Gao, 2013/06/18
- Re: [Qemu-devel] [PATCH 3/7] NUMA: parse guest numa nodes memory policy, Eduardo Habkost, 2013/06/18
- Re: [Qemu-devel] [PATCH 3/7] NUMA: parse guest numa nodes memory policy, Bandan Das, 2013/06/18
- Re: [Qemu-devel] [PATCH 3/7] NUMA: parse guest numa nodes memory policy, Wanlong Gao, 2013/06/19
- Re: [Qemu-devel] [PATCH 3/7] NUMA: parse guest numa nodes memory policy, Paolo Bonzini, 2013/06/19
- Re: [Qemu-devel] [PATCH 3/7] NUMA: parse guest numa nodes memory policy, Wanlong Gao, 2013/06/19
[Qemu-devel] [PATCH 6/7] NUMA: add hmp command set-mpol,
Wanlong Gao <=
[Qemu-devel] [PATCH 7/7] NUMA: show host memory policy info in info numa command, Wanlong Gao, 2013/06/18
[Qemu-devel] [PATCH 5/7] NUMA: add qmp command set-mpol to set memory policy for NUMA node, Wanlong Gao, 2013/06/18
[Qemu-devel] [PATCH 2/7] Add Linux libnuma detection, Wanlong Gao, 2013/06/18