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| author | Peter Maydell <peter.maydell@linaro.org> | 2018-08-21 10:23:53 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2018-08-21 10:23:53 +0100 |
| commit | 55f4e79d794d94b2ab22b0dc99c6b05abc628656 (patch) | |
| tree | 67f9e9097c5aec4b238a0d69f59ff4f718d1a57d /qemu-options.hx | |
| parent | 90b9508e211360f243a32474d67a4d49edb80d6a (diff) | |
| parent | 56eb90af39abf66c0e80588a9f50c31e7df7320b (diff) | |
Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
pc: fixes
This includes nvdimm persistence fixes queued before the release.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Mon 20 Aug 2018 11:38:11 BST
# gpg: using RSA key 281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67
# Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469
* remotes/mst/tags/for_upstream:
migration/ram: ensure write persistence on loading all data to PMEM.
migration/ram: Add check and info message to nvdimm post copy.
mem/nvdimm: ensure write persistence to PMEM in label emulation
hostmem-file: add the 'pmem' option
configure: add libpmem support
memory, exec: switch file ram allocation functions to 'flags' parameters
memory, exec: Expose all memory block related flags.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'qemu-options.hx')
| -rw-r--r-- | qemu-options.hx | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index 4efdedfdbb..5515dfaba5 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -4048,6 +4048,13 @@ requires an alignment different than the default one used by QEMU, eg the device DAX /dev/dax0.0 requires 2M alignment rather than 4K. In such cases, users can specify the required alignment via this option. +The @option{pmem} option specifies whether the backing file specified +by @option{mem-path} is in host persistent memory that can be accessed +using the SNIA NVM programming model (e.g. Intel NVDIMM). +If @option{pmem} is set to 'on', QEMU will take necessary operations to +guarantee the persistence of its own writes to @option{mem-path} +(e.g. in vNVDIMM label emulation and live migration). + @item -object memory-backend-ram,id=@var{id},merge=@var{on|off},dump=@var{on|off},share=@var{on|off},prealloc=@var{on|off},size=@var{size},host-nodes=@var{host-nodes},policy=@var{default|preferred|bind|interleave} Creates a memory backend object, which can be used to back the guest RAM. |