From: Keir Fraser <keir.fraser@citrix.com>
Date: Wed, 12 May 2010 07:52:07 +0000 (+0100)
Subject: xl: Add "xl sysrq" command, a clone of "xm sysrq".
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~12186
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=c614ef19d3eaf000f08f142ae4c3831bfa06bd93;p=xen.git

xl: Add "xl sysrq" command, a clone of "xm sysrq".

Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
---

diff --git a/tools/libxl/libxl.c b/tools/libxl/libxl.c
index 1b09294016..e031582083 100644
--- a/tools/libxl/libxl.c
+++ b/tools/libxl/libxl.c
@@ -2629,3 +2629,13 @@ int libxl_send_trigger(struct libxl_ctx *ctx, uint32_t domid, char *trigger_name
 
     return rc;
 }
+
+int libxl_send_sysrq(struct libxl_ctx *ctx, uint32_t domid, char sysrq)
+{
+    char *dompath = libxl_xs_get_dompath(ctx, domid);
+
+    libxl_xs_write(ctx, XBT_NULL, libxl_sprintf(ctx, "%s/control/sysrq", dompath), "%c", sysrq);
+
+    return 0;
+}
+
diff --git a/tools/libxl/libxl.h b/tools/libxl/libxl.h
index 198d98daf2..ffed896f45 100644
--- a/tools/libxl/libxl.h
+++ b/tools/libxl/libxl.h
@@ -481,5 +481,6 @@ int libxl_sched_credit_domain_set(struct libxl_ctx *ctx, uint32_t domid,
                                   struct libxl_sched_credit *scinfo);
 int libxl_send_trigger(struct libxl_ctx *ctx, uint32_t domid,
                        char *trigger_name, uint32_t vcpuid);
+int libxl_send_sysrq(struct libxl_ctx *ctx, uint32_t domid, char sysrq);
 #endif /* LIBXL_H */
 
diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
index f1e03913fa..1e2304756e 100644
--- a/tools/libxl/xl_cmdimpl.c
+++ b/tools/libxl/xl_cmdimpl.c
@@ -3058,3 +3058,43 @@ int main_trigger(int argc, char **argv)
 
     exit(0);
 }
+
+
+int main_sysrq(int argc, char **argv)
+{
+    int opt;
+    char *sysrq = NULL;
+    char *dom = NULL;
+
+    while ((opt = getopt(argc, argv, "h")) != -1) {
+        switch (opt) {
+        case 'h':
+            help("sysrq");
+            exit(0);
+        default:
+            fprintf(stderr, "option `%c' not supported.\n", opt);
+            break;
+        }
+    }
+
+    dom = argv[optind++];
+    if (!dom || !argv[optind]) {
+        fprintf(stderr, "'xl sysrq' requires 2 arguments.\n\n");
+        help("sysrq");
+        exit(1);
+    }
+
+    find_domain(dom);
+
+    sysrq = argv[optind];
+
+    if (sysrq[1] != '\0') {
+        fprintf(stderr, "Invalid sysrq.\n\n");
+        help("sysrq");
+        exit(1);
+    }
+
+    libxl_send_sysrq(&ctx, domid, sysrq[0]);
+
+    exit(0);
+}
diff --git a/tools/libxl/xl_cmdimpl.h b/tools/libxl/xl_cmdimpl.h
index c53ba4e4b8..c08c5d1593 100644
--- a/tools/libxl/xl_cmdimpl.h
+++ b/tools/libxl/xl_cmdimpl.h
@@ -39,5 +39,6 @@ int main_domid(int argc, char **argv);
 int main_domname(int argc, char **argv);
 int main_rename(int argc, char **argv);
 int main_trigger(int argc, char **argv);
+int main_sysrq(int argc, char **argv);
 
 void help(char *command);
diff --git a/tools/libxl/xl_cmdtable.c b/tools/libxl/xl_cmdtable.c
index 3c43094631..33582a79d9 100644
--- a/tools/libxl/xl_cmdtable.c
+++ b/tools/libxl/xl_cmdtable.c
@@ -172,6 +172,11 @@ struct cmd_spec cmd_table[] = {
       "Send a trigger to a domain",
       "<Domain> <nmi|reset|init|power|sleep> [<VCPU>]",
     },
+    { "sysrq",
+      &main_sysrq,
+      "Send a sysrq to a domain",
+      "<Domain> <letter>",
+    },
 };
 
 int cmdtable_len = sizeof(cmd_table)/sizeof(struct cmd_spec);