[libvirt] [PATCH] qemu: Use log output for pty assignment if 'info chardev' is unavailable
Daniel P. Berrange
berrange at redhat.com
Sun Jan 17 13:04:17 UTC 2010
On Sat, Jan 16, 2010 at 06:48:36PM +0100, Matthias Bolte wrote:
> qemudFindCharDevicePTYsMonitor reports an error if 'info chardev' didn't
> provide information for a requested device, even if the log output parsing
> had found the pty path for that device. This makes pty assignment fail for
> older QEMU/KVM versions. For example KVM 72 on Debian doesn't support
> 'info chardev', so qemuMonitorTextGetPtyPaths cannot parse any useful
> information and the hash for device-id-to-pty-path mapping stays empty.
>
> Make qemudFindCharDevicePTYsMonitor report an error only if the log output
> parsing and the 'info chardev' parsing failed to provide the pty path.
> ---
> src/qemu/qemu_driver.c | 14 +++++++++++---
> 1 files changed, 11 insertions(+), 3 deletions(-)
>
> diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
> index d13119f..783d9fc 100644
> --- a/src/qemu/qemu_driver.c
> +++ b/src/qemu/qemu_driver.c
> @@ -1428,9 +1428,17 @@ qemudFindCharDevicePTYsMonitor(virConnectPtr conn,
> \
> const char *path = (const char *) virHashLookup(paths, id); \
> if (path == NULL) { \
> - qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,\
> - _("no assigned pty for device %s"), id); \
> - return -1; \
> + if (chr->data.file.path == NULL) { \
> + /* neither the log output nor 'info chardev' had a */ \
> + /* pty path for this chardev, report an error */ \
> + qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR, \
> + _("no assigned pty for device %s"), id); \
> + return -1; \
> + } else { \
> + /* 'info chardev' had no pty path for this chardev, */\
> + /* but the log output had, so we're fine */ \
> + continue; \
> + } \
> } \
> \
> VIR_FREE(chr->data.file.path); \
ACK,
Daniel
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