diff options
| author | David Gibson <david@gibson.dropbear.id.au> | 2012-11-12 16:46:57 +0000 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2012-12-14 13:12:54 +0100 |
| commit | 639e8102ae71ce2e46ebeffc6080767e573c0c56 (patch) | |
| tree | 5a09de7099446d237dec48b0c9d19ae8c76ca4d0 /qemu-config.c | |
| parent | 22a2611c9cef4a8c8ad96fe17b3511a6cc5fb3a1 (diff) | |
pseries: Implement PAPR NVRAM
The PAPR specification requires a certain amount of NVRAM, accessed via
RTAS, which we don't currently implement in qemu. This patch addresses
this deficiency, implementing the NVRAM as a VIO device, with some glue to
instantiate it automatically based on a machine option.
The machine option specifies a drive id, which is used to back the NVRAM,
making it persistent. If nothing is specified, the driver instead simply
allocates space for the NVRAM, which will not be persistent
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'qemu-config.c')
| -rw-r--r-- | qemu-config.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/qemu-config.c b/qemu-config.c index aa78fb9ea7..de10051654 100644 --- a/qemu-config.c +++ b/qemu-config.c @@ -579,6 +579,10 @@ static QemuOptsList qemu_machine_opts = { .name = "usb", .type = QEMU_OPT_BOOL, .help = "Set on/off to enable/disable usb", + }, { + .name = "nvram", + .type = QEMU_OPT_STRING, + .help = "Drive backing persistent NVRAM", }, { /* End of list */ } }, |