utils/qemu/patches/0007-qga-invoke-separate-applets-for-guest-shutdown-modes.patch

   1 From 80ec6872aceb18c68b1cf5b6f8acd6ad667cbd4f Mon Sep 17 00:00:00 2001
   2 From: Yousong Zhou <yszhou4tech@gmail.com>
   3 Date: Thu, 17 Dec 2020 15:55:55 +0800
   4 Subject: [PATCH] qga: invoke separate applets for guest-shutdown modes
   5
   6 /sbin/shutdown is not available on OpenWrt by default
   7
   8 Origin: "main/qemu: fix shutdown from guest agent"
   9 https://gitlab.alpinelinux.org/alpine/aports/commit/76b81b486480fd9c3294cd420bcf2df01c27790d
  10 ---
  11  qga/commands-posix.c | 5 +++++
  12  1 file changed, 5 insertions(+)
  13
  14 --- a/qga/commands-posix.c
  15 +++ b/qga/commands-posix.c
  16 @@ -79,6 +79,7 @@ static void ga_wait_child(pid_t pid, int
  17  void qmp_guest_shutdown(const char *mode, Error **errp)
  18  {
  19      const char *shutdown_flag;
  20 +    const char *fallback_cmd = NULL;
  21      Error *local_err = NULL;
  22      pid_t pid;
  23      int status;
  24 @@ -100,10 +101,13 @@ void qmp_guest_shutdown(const char *mode
  25      slog("guest-shutdown called, mode: %s", mode);
  26      if (!mode || strcmp(mode, "powerdown") == 0) {
  27          shutdown_flag = powerdown_flag;
  28 +        fallback_cmd = "/sbin/poweroff";
  29      } else if (strcmp(mode, "halt") == 0) {
  30          shutdown_flag = halt_flag;
  31 +        fallback_cmd = "/sbin/halt";
  32      } else if (strcmp(mode, "reboot") == 0) {
  33          shutdown_flag = reboot_flag;
  34 +        fallback_cmd = "/sbin/reboot";
  35      } else {
  36          error_setg(errp,
  37                     "mode is invalid (valid values are: halt|powerdown|reboot");
  38 @@ -128,6 +132,7 @@ void qmp_guest_shutdown(const char *mode
  39          execl("/sbin/shutdown", "shutdown", "-h", shutdown_flag, "+0",
  40                 "hypervisor initiated shutdown", (char *)NULL);
  41  #endif
  42 +        execl(fallback_cmd, fallback_cmd, (char*)NULL);
  43          _exit(EXIT_FAILURE);
  44      } else if (pid < 0) {
  45          error_setg_errno(errp, errno, "failed to create child process");