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qemu-doc: Fix ivshmem huge page example 

Option parameter "share" is missing.  Without it, you get a *private*
mmap(), which defeats ivshmem's purpose pretty thoroughly ;)

While there, switch to the conventional mountpoint of hugetlbfs
/dev/hugepages.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1458066895-20632-5-git-send-email-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2016-03-15 19:34:19 +01:00
parent 3625c739ea
commit ad4929384b
1 changed files with 1 additions and 1 deletions
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qemu-doc.texi
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@ -1311,7 +1311,7 @@ Instead of specifying the <shm size> using POSIX shm, you may specify
a memory backend that has hugepage support: a memory backend that has hugepage support:
@example @example
qemu-system-i386 -object memory-backend-file,size=1G,mem-path=/mnt/hugepages/my-shmem-file,id=mb1 qemu-system-i386 -object memory-backend-file,size=1G,mem-path=/dev/hugepages/my-shmem-file,share,id=mb1
-device ivshmem,x-memdev=mb1 -device ivshmem,x-memdev=mb1
@end example @end example