commit c45ca702322e6ffa030aca54ca131b264b5cec85
author Ben Warren <ben@skyportsystems.com> Mon Feb 20 19:56:18 2017 -0800
committer Gerd Hoffmann <kraxel@redhat.com> Fri Feb 24 15:01:20 2017 +0100
tree 3b3dfa9e7489cb4b9958988a923dc4ccdec1e383
parent 31b6229da2d00e5202692669887e4e82f8354735

QEMU fw_cfg: Add functions for accessing files by key

Due to memory contraints, when resuming from S3 the fw_cfg "files" API
isn't available.  This adds a simple API to get a file 'key', and to
write to the file using the key as a reference.

Signed-off-by: Ben Warren <ben@skyportsystems.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
(cherry picked from commit 336b60bb10196adf287489cca4fd17092d9fac5e)