This patchset is reincarnation of one patch discussed in the scope of QEMU 2.4 and rejected for that time. Actually we should use non-blocking descriptors in QGA on Windows in guest-file-open exactly like was done for Posix.
Signed-off-by: Denis V. Lunev <d...@openvz.org> Signed-off-by: Olga Krishtal <okrish...@virtuozzo.com> Reviewed-by: Yuri Pudgorodskiy <y...@virtuozzo.com> CC: Michael Roth <mdr...@linux.vnet.ibm.com>
