qemu/backends
Igor Mammedov 056b68af77 fix qemu exit on memory hotplug when allocation fails at prealloc time
When adding hostmem backend at runtime, QEMU might exit with error:
  "os_mem_prealloc: Insufficient free host memory pages available to allocate guest RAM"

It happens due to os_mem_prealloc() not handling errors gracefully.

Fix it by passing errp argument so that os_mem_prealloc() could
report error to callers and undo performed allocation when
os_mem_prealloc() fails.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1469008443-72059-1-git-send-email-imammedo@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-08-02 12:03:58 +02:00
..
baum.c Replaced get_tick_per_sec() by NANOSECONDS_PER_SECOND 2016-03-22 22:20:17 +01:00
hostmem-file.c hostmem-file: plug a small leak 2016-04-15 17:56:06 +02:00
hostmem-ram.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
hostmem.c fix qemu exit on memory hotplug when allocation fails at prealloc time 2016-08-02 12:03:58 +02:00
Makefile.objs backends: Introduce chr-testdev 2014-08-06 17:53:05 +02:00
msmouse.c msmouse: send short messages if possible. 2016-07-12 09:24:31 +02:00
rng-egd.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
rng-random.c rng-random: rename RndRandom to RngRandom 2016-05-23 12:18:43 +05:30
rng.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00
testdev.c backends: Clean up includes 2016-02-04 17:01:04 +00:00
tpm.c include/qemu/osdep.h: Don't include qapi/error.h 2016-03-22 22:20:15 +01:00