search for: kvm_device

Currenty the ext_param field only distinguishes between "config change" and "vring interrupt". We can do a lot more with it though, so let's enable a full byte of possible values and constants to #defines while at it. Signed-off-by: Alexander Graf <agraf at suse.de> --- drivers/s390/kvm/kvm_virtio.c | 22 ++++++++++++++++------ 1 files changed, 16 insertions(+), 6

Currenty the ext_param field only distinguishes between "config change" and "vring interrupt". We can do a lot more with it though, so let's enable a full byte of possible values and constants to #defines while at it. Signed-off-by: Alexander Graf <agraf at suse.de> --- drivers/s390/kvm/kvm_virtio.c | 22 ++++++++++++++++------ 1 files changed, 16 insertions(+), 6

...et; > } > > void kvm_arch_irq_bypass_del_producer(struct irq_bypass_consumer *cons, > diff --git a/virt/kvm/vfio.c b/virt/kvm/vfio.c > index 8fcbc50..111da52 100644 > --- a/virt/kvm/vfio.c > +++ b/virt/kvm/vfio.c > @@ -226,7 +226,6 @@ static int kvm_vfio_set_group(struct kvm_device *dev, long attr, u64 arg) > list_add_tail(&kvg->node, &kv->group_list); > kvg->vfio_group = vfio_group; > > - kvm_arch_start_assignment(dev->kvm); > > mutex_unlock(&kv->lock); > > @@ -254,7 +253,6 @@ static int kvm_vfio_set_group(st...

...et; > } > > void kvm_arch_irq_bypass_del_producer(struct irq_bypass_consumer *cons, > diff --git a/virt/kvm/vfio.c b/virt/kvm/vfio.c > index 8fcbc50..111da52 100644 > --- a/virt/kvm/vfio.c > +++ b/virt/kvm/vfio.c > @@ -226,7 +226,6 @@ static int kvm_vfio_set_group(struct kvm_device *dev, long attr, u64 arg) > list_add_tail(&kvg->node, &kv->group_list); > kvg->vfio_group = vfio_group; > > - kvm_arch_start_assignment(dev->kvm); > > mutex_unlock(&kv->lock); > > @@ -254,7 +253,6 @@ static int kvm_vfio_set_group(st...

...t; -#include <asm/io.h> -#include <asm/kvm_para.h> -#include <asm/kvm_virtio.h> -#include <asm/sclp.h> -#include <asm/setup.h> -#include <asm/irq.h> - -#define VIRTIO_SUBCODE_64 0x0D00 - -/* - * The pointer to our (page) of device descriptions. - */ -static void *kvm_devices; -static struct work_struct hotplug_work; - -struct kvm_device { - struct virtio_device vdev; - struct kvm_device_desc *desc; -}; - -#define to_kvmdev(vd) container_of(vd, struct kvm_device, vdev) - -/* - * memory layout: - * - kvm_device_descriptor - * struct kvm_device_desc - * - configur...

...t; -#include <asm/io.h> -#include <asm/kvm_para.h> -#include <asm/kvm_virtio.h> -#include <asm/sclp.h> -#include <asm/setup.h> -#include <asm/irq.h> - -#define VIRTIO_SUBCODE_64 0x0D00 - -/* - * The pointer to our (page) of device descriptions. - */ -static void *kvm_devices; -static struct work_struct hotplug_work; - -struct kvm_device { - struct virtio_device vdev; - struct kvm_device_desc *desc; -}; - -#define to_kvmdev(vd) container_of(vd, struct kvm_device, vdev) - -/* - * memory layout: - * - kvm_device_descriptor - * struct kvm_device_desc - * - configur...

...;linux/interrupt.h> +#include <linux/virtio_ring.h> +#include <asm/io.h> +#include <asm/kvm_para.h> +#include <asm/setup.h> +#include <asm/s390_ext.h> + +#include "kvm_virtio.h" + +/* + * The pointer to our (page) of device descriptions. + */ +static void *kvm_devices; + +/* + * Unique numbering for kvm devices. + */ +static unsigned int dev_index; + +struct kvm_device { + struct virtio_device vdev; + struct kvm_device_desc *desc; +}; + +#define to_kvmdev(vd) container_of(vd, struct kvm_device, vdev) + +/* + * memory layout: + * - kvm_device_descriptor + *...

...;linux/interrupt.h> +#include <linux/virtio_ring.h> +#include <asm/io.h> +#include <asm/kvm_para.h> +#include <asm/setup.h> +#include <asm/s390_ext.h> + +#include "kvm_virtio.h" + +/* + * The pointer to our (page) of device descriptions. + */ +static void *kvm_devices; + +/* + * Unique numbering for kvm devices. + */ +static unsigned int dev_index; + +struct kvm_device { + struct virtio_device vdev; + struct kvm_device_desc *desc; +}; + +#define to_kvmdev(vd) container_of(vd, struct kvm_device, vdev) + +/* + * memory layout: + * - kvm_device_descriptor + *...

...et; > } > > void kvm_arch_irq_bypass_del_producer(struct irq_bypass_consumer *cons, > diff --git a/virt/kvm/vfio.c b/virt/kvm/vfio.c > index 8fcbc50..111da52 100644 > --- a/virt/kvm/vfio.c > +++ b/virt/kvm/vfio.c > @@ -226,7 +226,6 @@ static int kvm_vfio_set_group(struct kvm_device *dev, long attr, u64 arg) > list_add_tail(&kvg->node, &kv->group_list); > kvg->vfio_group = vfio_group; > > - kvm_arch_start_assignment(dev->kvm); > > mutex_unlock(&kv->lock); > > @@ -254,7 +253,6 @@ static int kvm_vfio_set_group(st...

Currenty the ext_param field only distinguishes between "config change" and "vring interrupt". We can do a lot more with it though, so let's enable a full byte of possible values and constants to #defines while at it. Signed-off-by: Alexander Graf <agraf at suse.de> --- v1 -> v2: - move defines to virtio_s390.h --- arch/s390/include/asm/kvm_virtio.h | 6

Currenty the ext_param field only distinguishes between "config change" and "vring interrupt". We can do a lot more with it though, so let's enable a full byte of possible values and constants to #defines while at it. Signed-off-by: Alexander Graf <agraf at suse.de> --- v1 -> v2: - move defines to virtio_s390.h --- arch/s390/include/asm/kvm_virtio.h | 6

All, These days I am trying to understand the interaction relationship between the libvirt and KVM kernel module, eg. kvm_intel.ko. We know that KVM kernel module expose an entry in form of device file "/dev/kvm" which can be accessed by user space application to control, for example, create a VM using KVM_CREATE_VM with help of ioctl. Now let's say the tool virsh based upon

...t; void kvm_arch_irq_bypass_del_producer(struct irq_bypass_consumer *cons, >> diff --git a/virt/kvm/vfio.c b/virt/kvm/vfio.c >> index 8fcbc50..111da52 100644 >> --- a/virt/kvm/vfio.c >> +++ b/virt/kvm/vfio.c >> @@ -226,7 +226,6 @@ static int kvm_vfio_set_group(struct kvm_device *dev, long attr, u64 arg) >> list_add_tail(&kvg->node, &kv->group_list); >> kvg->vfio_group = vfio_group; >> >> - kvm_arch_start_assignment(dev->kvm); >> >> mutex_unlock(&kv->lock); >> >> @@ -254,7 +253...

..._consumer *cons, > diff --git a/virt/kvm/vfio.c b/virt/kvm/vfio.c > index 8fcbc50..111da52 100644 > --- a/virt/kvm/vfio.c > +++ b/virt/kvm/vfio.c > @@ -226,7 +226,6 @@ static int kvm_vfio_set_group(struct kvm_device *dev, long attr, u64 arg) > list_add_tail(&kvg->node, &kv->group_list); > kvg->vfio_group = vfio_group; > - kvm_arch_start_assignment(dev->kvm); >...

...config->del_vqs(vi->vdev); unregister_netdev(vi->dev); while (vi->pages) diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c index cbc8566..6787426 100644 --- a/drivers/s390/kvm/kvm_virtio.c +++ b/drivers/s390/kvm/kvm_virtio.c @@ -34,6 +34,11 @@ static void *kvm_devices; struct kvm_device { struct virtio_device vdev; + + /* Array of virtqueues */ + struct virtqueue **vqs; + int nvqs; + struct kvm_device_desc *desc; }; @@ -226,6 +231,61 @@ static void kvm_del_vq(struct virtqueue *vq) KVM_S390_VIRTIO_RING_ALIGN)); } +static void kvm_del_vqs...

...config->del_vqs(vi->vdev); unregister_netdev(vi->dev); while (vi->pages) diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c index cbc8566..6787426 100644 --- a/drivers/s390/kvm/kvm_virtio.c +++ b/drivers/s390/kvm/kvm_virtio.c @@ -34,6 +34,11 @@ static void *kvm_devices; struct kvm_device { struct virtio_device vdev; + + /* Array of virtqueues */ + struct virtqueue **vqs; + int nvqs; + struct kvm_device_desc *desc; }; @@ -226,6 +231,61 @@ static void kvm_del_vq(struct virtqueue *vq) KVM_S390_VIRTIO_RING_ALIGN)); } +static void kvm_del_vqs...

...qs(vi->vdev); + while (vi->pages) __free_pages(get_a_page(vi, GFP_KERNEL), 0); diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c index ba8995f..ff430e4 100644 --- a/drivers/s390/kvm/kvm_virtio.c +++ b/drivers/s390/kvm/kvm_virtio.c @@ -34,6 +34,7 @@ static void *kvm_devices; struct kvm_device { struct virtio_device vdev; + struct kvm_device_desc *desc; }; @@ -227,6 +228,38 @@ static void kvm_del_vq(struct virtqueue *vq) KVM_S390_VIRTIO_RING_ALIGN)); } +static void vp_del_vqs(struct virtio_device *vdev) +{ + struct virtqueue *vq, *n; + + list_...

...qs(vi->vdev); + while (vi->pages) __free_pages(get_a_page(vi, GFP_KERNEL), 0); diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c index ba8995f..ff430e4 100644 --- a/drivers/s390/kvm/kvm_virtio.c +++ b/drivers/s390/kvm/kvm_virtio.c @@ -34,6 +34,7 @@ static void *kvm_devices; struct kvm_device { struct virtio_device vdev; + struct kvm_device_desc *desc; }; @@ -227,6 +228,38 @@ static void kvm_del_vq(struct virtqueue *vq) KVM_S390_VIRTIO_RING_ALIGN)); } +static void vp_del_vqs(struct virtio_device *vdev) +{ + struct virtqueue *vq, *n; + + list_...

...vers/s390/virtio/kvm_virtio.c @@ -255,7 +255,7 @@ static void kvm_del_vqs(struct virtio_device *vdev) static int kvm_find_vqs(struct virtio_device *vdev, unsigned nvqs, struct virtqueue *vqs[], vq_callback_t *callbacks[], - const char *names[]) + const char * const names[]) { struct kvm_device *kdev = to_kvmdev(vdev); int i; diff --git a/drivers/s390/virtio/virtio_ccw.c b/drivers/s390/virtio/virtio_ccw.c index b2a1a81..5a433ae 100644 --- a/drivers/s390/virtio/virtio_ccw.c +++ b/drivers/s390/virtio/virtio_ccw.c @@ -635,7 +635,7 @@ out: static int virtio_ccw_find_vqs(struct virtio_devic...

...vers/s390/virtio/kvm_virtio.c @@ -255,7 +255,7 @@ static void kvm_del_vqs(struct virtio_device *vdev) static int kvm_find_vqs(struct virtio_device *vdev, unsigned nvqs, struct virtqueue *vqs[], vq_callback_t *callbacks[], - const char *names[]) + const char * const names[]) { struct kvm_device *kdev = to_kvmdev(vdev); int i; diff --git a/drivers/s390/virtio/virtio_ccw.c b/drivers/s390/virtio/virtio_ccw.c index b2a1a81..5a433ae 100644 --- a/drivers/s390/virtio/virtio_ccw.c +++ b/drivers/s390/virtio/virtio_ccw.c @@ -635,7 +635,7 @@ out: static int virtio_ccw_find_vqs(struct virtio_devic...