diff options
| author | Satoru Moriya <satoru.moriya@hds.com> | 2013-04-19 16:42:06 +0200 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2013-04-22 08:52:23 -0500 |
| commit | 888a6bc63c94ef34026399117ebf6a1fa0e7a29a (patch) | |
| tree | 9a7eaa7b65500baf6099eb9118c92aa220c3b4f1 /qemu-options.hx | |
| parent | 2b316774f60291f57ca9ecb6a9f0712c532cae34 (diff) | |
Add option to mlock qemu and guest memory
In certain scenario, latency induced by paging is significant and
memory locking is needed. Also, in the scenario with untrusted
guests, latency improvement due to mlock is desired.
This patch introduces a following new option to mlock guest and
qemu memory:
-realtime mlock=on|off
Signed-off-by: Satoru Moriya <satoru.moriya@hds.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1366382526-26146-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'qemu-options.hx')
| -rw-r--r-- | qemu-options.hx | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index 5c115d1cf9..e86cc2439d 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -2583,6 +2583,19 @@ STEXI Do not start CPU at startup (you must type 'c' in the monitor). ETEXI +DEF("realtime", HAS_ARG, QEMU_OPTION_realtime, + "-realtime [mlock=on|off]\n" + " run qemu with realtime features\n" + " mlock=on|off controls mlock support (default: on)\n", + QEMU_ARCH_ALL) +STEXI +@item -realtime mlock=on|off +@findex -realtime +Run qemu with realtime features. +mlocking qemu and guest memory can be enabled via @option{mlock=on} +(enabled by default). +ETEXI + DEF("gdb", HAS_ARG, QEMU_OPTION_gdb, \ "-gdb dev wait for gdb connection on 'dev'\n", QEMU_ARCH_ALL) STEXI |