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vhost: restrict Linux dependency to kernel vhost

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vhost-user does not depend on Linux; it can run on any POSIX system.  Restrict
vhost-kernel to Linux in hw/virtio/vhost-backend.c, everything else can be
compiled on all POSIX systems.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1543851204-41186-4-git-send-email-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1550165756-21617-4-git-send-email-pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Paolo Bonzini 2019-02-14 18:35:50 +01:00 • committed by Michael S. Tsirkin
parent 56f41de737
commit 18658a3ced
7 changed files with 33 additions and 14 deletions
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12
hw/virtio/vhost-backend.c
View file

@ -9,11 +9,14 @@
*/
#include "qemu/osdep.h"
#include <linux/vhost.h>
#include <sys/ioctl.h>
#include "hw/virtio/vhost.h"
#include "hw/virtio/vhost-backend.h"
#include "qemu/error-report.h"
#include "standard-headers/linux/vhost_types.h"
#ifdef CONFIG_LINUX
#include <linux/vhost.h>
#include <sys/ioctl.h>
static int vhost_kernel_call(struct vhost_dev *dev, unsigned long int request,
void *arg)
@ -265,18 +268,23 @@ static const VhostOps kernel_ops = {
.vhost_set_iotlb_callback = vhost_kernel_set_iotlb_callback,
.vhost_send_device_iotlb_msg = vhost_kernel_send_device_iotlb_msg,
};
#endif
int vhost_set_backend_type(struct vhost_dev *dev, VhostBackendType backend_type)
{
int r = 0;
switch (backend_type) {
#ifdef CONFIG_LINUX
case VHOST_BACKEND_TYPE_KERNEL:
dev->vhost_ops = &kernel_ops;
break;
#endif
#ifdef CONFIG_VHOST_USER
case VHOST_BACKEND_TYPE_USER:
dev->vhost_ops = &user_ops;
break;
#endif
default:
error_report("Unknown vhost backend type");
r = -1;