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[Qemu-devel] [PATCH v1 08/37] vhost-pci-slave/msg: VHOST_USER_SET_FEATUR
From: |
Wei Wang |
Subject: |
[Qemu-devel] [PATCH v1 08/37] vhost-pci-slave/msg: VHOST_USER_SET_FEATURES |
Date: |
Sat, 17 Dec 2016 18:43:18 +0800 |
Store the feature bits that have been negotiated between the master device
and driver. The feature bits will be negotiated with the slave driver.
Signed-off-by: Wei Wang <address@hidden>
---
hw/virtio/vhost-pci-slave.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/hw/virtio/vhost-pci-slave.c b/hw/virtio/vhost-pci-slave.c
index 4f445c2..bc6120c 100644
--- a/hw/virtio/vhost-pci-slave.c
+++ b/hw/virtio/vhost-pci-slave.c
@@ -50,6 +50,13 @@ static int vp_slave_get_features(CharBackend *chr_be,
VhostUserMsg *msg)
return vp_slave_write(chr_be, msg);
}
+static void vp_slave_set_features(VhostUserMsg *msg)
+{
+ /* Clear the protocol feature bit, which is useless for the device */
+ vp_slave->feature_bits = msg->payload.u64
+ & ~(1 << VHOST_USER_F_PROTOCOL_FEATURES);
+}
+
static void vp_slave_event(void *opaque, int event)
{
switch (event) {
@@ -98,6 +105,9 @@ static void vp_slave_read(void *opaque, const uint8_t *buf,
int size)
if (ret < 0)
goto err_handling;
break;
+ case VHOST_USER_SET_FEATURES:
+ vp_slave_set_features(&msg);
+ break;
default:
error_report("vhost-pci-slave does not support msg request = %d",
msg.request);
--
2.7.4
- [Qemu-devel] [PATCH v1 00/37] Implementation of vhost-pci for inter-vm commucation, Wei Wang, 2016/12/17
- [Qemu-devel] [PATCH v1 01/37] vhost-pci-net: the fundamental vhost-pci-net device emulation, Wei Wang, 2016/12/17
- [Qemu-devel] [PATCH v1 02/37] vhost-pci-net: the fundamental implementation of vhost-pci-net-pci, Wei Wang, 2016/12/17
- [Qemu-devel] [PATCH v1 04/37] vl: add the vhost-pci-slave command line option, Wei Wang, 2016/12/17
- [Qemu-devel] [PATCH v1 03/37] vhost-user: share the vhost-user protocol related structures, Wei Wang, 2016/12/17
- [Qemu-devel] [PATCH v1 05/37] vhost-pci-slave: start the implementation of vhost-pci-slave, Wei Wang, 2016/12/17
- [Qemu-devel] [PATCH v1 06/37] vhost-pci-slave: set up the fundamental handlers for the server socket, Wei Wang, 2016/12/17
- [Qemu-devel] [PATCH v1 08/37] vhost-pci-slave/msg: VHOST_USER_SET_FEATURES,
Wei Wang <=
- [Qemu-devel] [PATCH v1 07/37] vhost-pci-slave/msg: VHOST_USER_GET_FEATURES, Wei Wang, 2016/12/17
- [Qemu-devel] [PATCH v1 09/37] vhost-pci-slave/msg: VHOST_USER_GET_PROTOCOL_FEATURES, Wei Wang, 2016/12/17
- [Qemu-devel] [PATCH v1 10/37] vhost-pci-slave/msg: VHOST_USER_SET_PROTOCOL_FEATURES, Wei Wang, 2016/12/17
- [Qemu-devel] [PATCH v1 11/37] vhost-user/msg: VHOST_USER_PROTOCOL_F_SET_DEVICE_ID, Wei Wang, 2016/12/17
- [Qemu-devel] [PATCH v1 12/37] vhost-pci-slave/msg: VHOST_USER_SET_DEVICE_ID, Wei Wang, 2016/12/17
- [Qemu-devel] [PATCH v1 14/37] vhost-pci-slave/msg: VHOST_USER_SET_OWNER, Wei Wang, 2016/12/17
- [Qemu-devel] [PATCH v1 13/37] vhost-pci-slave/msg: VHOST_USER_GET_QUEUE_NUM, Wei Wang, 2016/12/17
- [Qemu-devel] [PATCH v1 15/37] vhost-pci-slave/msg: VHOST_USER_SET_MEM_TABLE, Wei Wang, 2016/12/17
- [Qemu-devel] [PATCH v1 17/37] vhost-pci-slave/msg: VHOST_USER_SET_VRING_BASE, Wei Wang, 2016/12/17
- [Qemu-devel] [PATCH v1 16/37] vhost-pci-slave/msg: VHOST_USER_SET_VRING_NUM, Wei Wang, 2016/12/17