diff options
| author | Cam Macdonell <cam@cs.ualberta.ca> | 2010-07-27 10:54:13 -0600 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2010-10-11 16:33:42 -0500 |
| commit | ec810f662a2944a3042426838c8715a016c855fc (patch) | |
| tree | 870c85952d051cec22c0092a2cd9ae04556ebabe /qemu-char.h | |
| parent | 9367dbbe6d4169ae58f356166329f9a42d88d624 (diff) | |
RESEND: Inter-VM shared memory PCI device
resend for bug fix related to removal of irqfd
Support an inter-vm shared memory device that maps a shared-memory object as a
PCI device in the guest. This patch also supports interrupts between guest by
communicating over a unix domain socket. This patch applies to the qemu-kvm
repository.
-device ivshmem,size=<size in format accepted by -m>[,shm=<shm name>]
Interrupts are supported between multiple VMs by using a shared memory server
by using a chardev socket.
-device ivshmem,size=<size in format accepted by -m>[,shm=<shm name>]
[,chardev=<id>][,msi=on][,ioeventfd=on][,vectors=n][,role=peer|master]
-chardev socket,path=<path>,id=<id>
The shared memory server, sample programs and init scripts are in a git repo here:
www.gitorious.org/nahanni
Signed-off-by: Cam Macdonell <cam@cs.ualberta.ca>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
(cherry picked from commit 6cbf4c8c6416237e9c323661b87d60792a9d51af)
Diffstat (limited to 'qemu-char.h')
| -rw-r--r-- | qemu-char.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/qemu-char.h b/qemu-char.h index e3a07838a4..6ea01ba179 100644 --- a/qemu-char.h +++ b/qemu-char.h @@ -94,6 +94,9 @@ void qemu_chr_info_print(Monitor *mon, const QObject *ret_data); void qemu_chr_info(Monitor *mon, QObject **ret_data); CharDriverState *qemu_chr_find(const char *name); +/* add an eventfd to the qemu devices that are polled */ +CharDriverState *qemu_chr_open_eventfd(int eventfd); + extern int term_escape_char; /* async I/O support */ |