Commit 7d4f4bda authored by Marc-André Lureau's avatar Marc-André Lureau
Browse files

doc: document ivshmem & hugepages 



Document and give some examples of hugepages support with ivshmem device
and server.

Signed-off-by: default avatarMarc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: default avatarEric Blake <eblake@redhat.com>
parent f7a199b2

qemu-doc.texi

+13 −0
Original line number Diff line number Diff line
@@ -1293,6 +1293,19 @@ copy the shared memory on migration to the destination host. With 
With the @option{peer} case, the device should be detached and then reattached

after migration using the PCI hotplug support.



@subsubsection ivshmem and hugepages



Instead of specifying the <shm size> using POSIX shm, you may specify

a memory backend that has hugepage support:



@example

qemu-system-i386 -object memory-backend-file,size=1G,mem-path=/mnt/hugepages,id=mb1

                 -device ivshmem,memdev=mb1

@end example



ivshmem-server also supports hugepages mount points with the

@option{-m} memory path argument.



@node direct_linux_boot

@section Direct Linux Boot