diff options
| author | Jagannathan Raman <jag.raman@oracle.com> | 2021-01-29 11:46:19 -0500 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2021-02-10 09:23:28 +0000 |
| commit | bd36adb8df5d62a2b4d4ded6357fb50b69a508fa (patch) | |
| tree | 6660a13fbf828e53aa204f57b3c6a46d60c87581 /hw/remote/message.c | |
| parent | c746b74a7d881c7da4afdd7b29353a90c445a8ab (diff) | |
multi-process: create IOHUB object to handle irq
IOHUB object is added to manage PCI IRQs. It uses KVM_IRQFD
ioctl to create irqfd to injecting PCI interrupts to the guest.
IOHUB object forwards the irqfd to the remote process. Remote process
uses this fd to directly send interrupts to the guest, bypassing QEMU.
Signed-off-by: John G Johnson <john.g.johnson@oracle.com>
Signed-off-by: Jagannathan Raman <jag.raman@oracle.com>
Signed-off-by: Elena Ufimtseva <elena.ufimtseva@oracle.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 51d5c3d54e28a68b002e3875c59599c9f5a424a1.1611938319.git.jag.raman@oracle.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'hw/remote/message.c')
| -rw-r--r-- | hw/remote/message.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/hw/remote/message.c b/hw/remote/message.c index 25341d8ad2..adab040ca1 100644 --- a/hw/remote/message.c +++ b/hw/remote/message.c @@ -18,6 +18,7 @@ #include "hw/pci/pci.h" #include "exec/memattrs.h" #include "hw/remote/memory.h" +#include "hw/remote/iohub.h" static void process_config_write(QIOChannel *ioc, PCIDevice *dev, MPQemuMsg *msg, Error **errp); @@ -65,6 +66,9 @@ void coroutine_fn mpqemu_remote_msg_loop_co(void *data) case MPQEMU_CMD_SYNC_SYSMEM: remote_sysmem_reconfig(&msg, &local_err); break; + case MPQEMU_CMD_SET_IRQFD: + process_set_irqfd_msg(pci_dev, &msg); + break; default: error_setg(&local_err, "Unknown command (%d) received for device %s" |