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| author | Dr. David Alan Gilbert <dgilbert@redhat.com> | 2019-10-25 17:57:06 +0100 |
|---|---|---|
| committer | Philippe Mathieu-Daudé <philmd@redhat.com> | 2019-11-01 19:19:24 +0100 |
| commit | 20a192203222efde055df688cc344f9efb87c372 (patch) | |
| tree | bb6ba2ab8ad856195d53e0168f0fd2fedf450720 /hw/nvram/fw_cfg.c | |
| parent | f3cad9c6dbd4b9877232c44bf2dd877353a73209 (diff) | |
| download | qemu-20a192203222efde055df688cc344f9efb87c372.zip qemu-20a192203222efde055df688cc344f9efb87c372.tar.gz qemu-20a192203222efde055df688cc344f9efb87c372.tar.bz2 | |
fw_cfg: Allow reboot-timeout=-1 again
Commit ee5d0f89de3e53cdb0dc added range checking on reboot-timeout
to only allow the range 0..65535; however both qemu and libvirt document
the special value -1 to mean don't reboot.
Allow it again.
Fixes: ee5d0f89de3e53cdb0dc ("fw_cfg: Fix -boot reboot-timeout error checking")
RH bz: https://bugzilla.redhat.com/show_bug.cgi?id=1765443
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20191025165706.177653-1-dgilbert@redhat.com>
Suggested-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <37ac197c-f20e-dd05-ff6a-13a2171c7148@redhat.com>
[PMD: Applied Laszlo's suggestions]
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Diffstat (limited to 'hw/nvram/fw_cfg.c')
| -rw-r--r-- | hw/nvram/fw_cfg.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/hw/nvram/fw_cfg.c b/hw/nvram/fw_cfg.c index aef1727..14f8437 100644 --- a/hw/nvram/fw_cfg.c +++ b/hw/nvram/fw_cfg.c @@ -237,7 +237,7 @@ static void fw_cfg_bootsplash(FWCfgState *s) static void fw_cfg_reboot(FWCfgState *s) { const char *reboot_timeout = NULL; - int64_t rt_val = -1; + uint64_t rt_val = -1; uint32_t rt_le32; /* get user configuration */ @@ -247,10 +247,11 @@ static void fw_cfg_reboot(FWCfgState *s) if (reboot_timeout) { rt_val = qemu_opt_get_number(opts, "reboot-timeout", -1); + /* validate the input */ - if (rt_val < 0 || rt_val > 0xffff) { + if (rt_val > 0xffff && rt_val != (uint64_t)-1) { error_report("reboot timeout is invalid," - "it should be a value between 0 and 65535"); + "it should be a value between -1 and 65535"); exit(1); } } |