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| author | Peter Maydell <peter.maydell@linaro.org> | 2019-04-26 14:30:18 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2019-04-26 14:30:18 +0100 |
| commit | 06e64339555096a2bc2d08c7e012b36a9977062c (patch) | |
| tree | d671da8ca994cbd1fe74aac0f9d7152e67ca14b7 /qemu-options.hx | |
| parent | f7526eece29cd2e36a63b6703508b24453095eb8 (diff) | |
| parent | 119906afa5ca610adb87c55ab0d8e53c9104bfc3 (diff) | |
| download | focaccia-qemu-06e64339555096a2bc2d08c7e012b36a9977062c.tar.gz focaccia-qemu-06e64339555096a2bc2d08c7e012b36a9977062c.zip | |
Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging
Machine queue, 2019-04-25 * 4.1 machine-types (Cornelia Huck) * Support MAP_SYNC on pmem memory backends (Zhang Yi) * -cpu parsing fixes and cleanups (Eduardo Habkost) * machine initialization cleanups (Wei Yang, Markus Armbruster) # gpg: Signature made Thu 25 Apr 2019 18:54:57 BST # gpg: using RSA key 2807936F984DC5A6 # gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full] # Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF D1AA 2807 936F 984D C5A6 * remotes/ehabkost/tags/machine-next-pull-request: util/mmap-alloc: support MAP_SYNC in qemu_ram_mmap() linux-headers: add linux/mman.h. scripts/update-linux-headers: add linux/mman.h util/mmap-alloc: Add a 'is_pmem' parameter to qemu_ram_mmap cpu: Fix crash with empty -cpu option cpu: Rename parse_cpu_model() to parse_cpu_option() vl: Simplify machine_parse() vl: Clean up after previous commit vl.c: allocate TYPE_MACHINE list once during bootup vl.c: make find_default_machine() local hw: add compat machines for 4.1 Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'qemu-options.hx')
| -rw-r--r-- | qemu-options.hx | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index 08749a3391..bdc74c0620 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -4233,6 +4233,11 @@ 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). +Also, we will map the backend-file with MAP_SYNC flag, which ensures the +file metadata is in sync for @option{mem-path} in case of host crash +or a power failure. MAP_SYNC requires support from both the host kernel +(since Linux kernel 4.15) and the filesystem of @option{mem-path} mounted +with DAX option. @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} |