Commit-ID: f184486c0e550c75543537c506a017b7b9cd895f
Gitweb: http://git.kernel.org/tip/f184486c0e550c75543537c506a017b7b9cd895f
Author: Sasha Levin <levinsasha928@xxxxxxxxx>
AuthorDate: Sun, 3 Jul 2011 18:38:10 +0300
Committer: Pekka Enberg <penberg@xxxxxxxxxx>
CommitDate: Sun, 3 Jul 2011 21:07:47 +0300
kvm tools: Allow pausing and debugging all running instances
Add a 'kvm [debug,pause] all' command to allow pausing or debugging
all running guests on a host.
Signed-off-by: Sasha Levin <levinsasha928@xxxxxxxxx>
Signed-off-by: Pekka Enberg <penberg@xxxxxxxxxx>
---
tools/kvm/kvm-debug.c | 10 ++++++++++
tools/kvm/kvm-pause.c | 10 ++++++++++
2 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/kvm-debug.c b/tools/kvm/kvm-debug.c
index 432ae84..676f311 100644
--- a/tools/kvm/kvm-debug.c
+++ b/tools/kvm/kvm-debug.c
@@ -7,6 +7,11 @@
#include <string.h>
#include <signal.h>
+static void do_debug(const char *name, int pid)
+{
+ kill(pid, SIGQUIT);
+}
+
int kvm_cmd_debug(int argc, const char **argv, const char *prefix)
{
int pid;
@@ -14,6 +19,11 @@ int kvm_cmd_debug(int argc, const char **argv, const char *prefix)
if (argc != 1)
die("Usage: kvm debug [instance name]\n");
+ if (strcmp(argv[0], "all") == 0) {
+ kvm__enumerate_instances(do_debug);
+ return 0;
+ }
+
pid = kvm__get_pid_by_instance(argv[0]);
if (pid < 0)
die("Failed locating instance name");
diff --git a/tools/kvm/kvm-pause.c b/tools/kvm/kvm-pause.c
index 0cb6f29..ea4f95d 100644
--- a/tools/kvm/kvm-pause.c
+++ b/tools/kvm/kvm-pause.c
@@ -7,6 +7,11 @@
#include <kvm/kvm-pause.h>
#include <kvm/kvm.h>
+static void do_pause(const char *name, int pid)
+{
+ kill(pid, SIGUSR2);
+}
+
int kvm_cmd_pause(int argc, const char **argv, const char *prefix)
{
int pid;
@@ -14,6 +19,11 @@ int kvm_cmd_pause(int argc, const char **argv, const char *prefix)
if (argc != 1)
die("Usage: kvm debug [instance name]\n");
+ if (strcmp(argv[0], "all") == 0) {
+ kvm__enumerate_instances(do_pause);
+ return 0;
+ }
+
pid = kvm__get_pid_by_instance(argv[0]);
if (pid < 0)
die("Failed locating instance name");
--
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