search for: pstore_info

...+#include <uapi/linux/virtio_pstore.h> > + > +#define VIRT_PSTORE_ORDER 2 > +#define VIRT_PSTORE_BUFSIZE (4096 << VIRT_PSTORE_ORDER) > + > +struct virtio_pstore { > + struct virtio_device *vdev; > + struct virtqueue *vq; > + struct pstore_info pstore; > + struct virtio_pstore_hdr hdr; > + size_t buflen; > + u64 id; > + > + /* Waiting for host to ack */ > + wait_queue_head_t acked; > +}; > + > +static u16 to_virtio_type(struct virti...

...linux/virtio_config.h> +#include <uapi/linux/virtio_ids.h> +#include <uapi/linux/virtio_pstore.h> + +#define VIRT_PSTORE_ORDER 2 +#define VIRT_PSTORE_BUFSIZE (4096 << VIRT_PSTORE_ORDER) + +struct virtio_pstore { + struct virtio_device *vdev; + struct virtqueue *vq; + struct pstore_info pstore; + struct virtio_pstore_hdr hdr; + size_t buflen; + u64 id; + + /* Waiting for host to ack */ + wait_queue_head_t acked; +}; + +static u16 to_virtio_type(struct virtio_pstore *vps, enum pstore_type_id type) +{ + u16 ret; + + switch (type) { + case PSTORE_TYPE_DMESG: + ret = cpu_to_vi...

...lt;uapi/linux/virtio_ids.h> +#include <uapi/linux/virtio_pstore.h> + +#define VIRT_PSTORE_ORDER 2 +#define VIRT_PSTORE_BUFSIZE (4096 << VIRT_PSTORE_ORDER) +#define VIRT_PSTORE_NR_REQ 128 + +struct virtio_pstore { + struct virtio_device *vdev; + struct virtqueue *vq[2]; + struct pstore_info pstore; + struct virtio_pstore_req req[VIRT_PSTORE_NR_REQ]; + struct virtio_pstore_res res[VIRT_PSTORE_NR_REQ]; + unsigned int req_id; + + /* Waiting for host to ack */ + wait_queue_head_t acked; + int failed; +}; + +#define TYPE_TABLE_ENTRY(_entry) \ + { PSTORE_TYPE_##_entry, VIRTIO_PSTORE...

...lt;uapi/linux/virtio_ids.h> +#include <uapi/linux/virtio_pstore.h> + +#define VIRT_PSTORE_ORDER 2 +#define VIRT_PSTORE_BUFSIZE (4096 << VIRT_PSTORE_ORDER) +#define VIRT_PSTORE_NR_REQ 128 + +struct virtio_pstore { + struct virtio_device *vdev; + struct virtqueue *vq[2]; + struct pstore_info pstore; + struct virtio_pstore_req req[VIRT_PSTORE_NR_REQ]; + struct virtio_pstore_res res[VIRT_PSTORE_NR_REQ]; + unsigned int req_id; + + /* Waiting for host to ack */ + wait_queue_head_t acked; + int failed; +}; + +#define TYPE_TABLE_ENTRY(_entry) \ + { PSTORE_TYPE_##_entry, VIRTIO_PSTORE...

...BUFSIZE (4096 << VIRT_PSTORE_ORDER) > +#define VIRT_PSTORE_NR_REQ 128 > + > +struct virtio_pstore { > + struct virtio_device *vdev; > + struct virtqueue *vq[2]; I'd add named fields instead of an array here, vq[0] vq[1] all over the place is hard to read. > + struct pstore_info pstore; > + struct virtio_pstore_req req[VIRT_PSTORE_NR_REQ]; > + struct virtio_pstore_res res[VIRT_PSTORE_NR_REQ]; > + unsigned int req_id; > + > + /* Waiting for host to ack */ > + wait_queue_head_t acked; > + int failed; > +}; > + > +#define TYPE_TABLE_ENTRY(_e...

...BUFSIZE (4096 << VIRT_PSTORE_ORDER) > +#define VIRT_PSTORE_NR_REQ 128 > + > +struct virtio_pstore { > + struct virtio_device *vdev; > + struct virtqueue *vq[2]; I'd add named fields instead of an array here, vq[0] vq[1] all over the place is hard to read. > + struct pstore_info pstore; > + struct virtio_pstore_req req[VIRT_PSTORE_NR_REQ]; > + struct virtio_pstore_res res[VIRT_PSTORE_NR_REQ]; > + unsigned int req_id; > + > + /* Waiting for host to ack */ > + wait_queue_head_t acked; > + int failed; > +}; > + > +#define TYPE_TABLE_ENTRY(_e...

...uapi/linux/virtio_pstore.h> > + > +#define VIRT_PSTORE_ORDER 2 > +#define VIRT_PSTORE_BUFSIZE (4096 << VIRT_PSTORE_ORDER) > +#define VIRT_PSTORE_NR_REQ 128 > + > +struct virtio_pstore { > + struct virtio_device *vdev; > + struct virtqueue *vq[2]; > + struct pstore_info pstore; > + struct virtio_pstore_req req[VIRT_PSTORE_NR_REQ]; > + struct virtio_pstore_res res[VIRT_PSTORE_NR_REQ]; > + unsigned int req_id; > + > + /* Waiting for host to ack */ > + wait_queue_head_t acked; > + int failed; > +}; > + > +#define TYPE_TABLE_ENTRY(_e...

...uapi/linux/virtio_pstore.h> > + > +#define VIRT_PSTORE_ORDER 2 > +#define VIRT_PSTORE_BUFSIZE (4096 << VIRT_PSTORE_ORDER) > +#define VIRT_PSTORE_NR_REQ 128 > + > +struct virtio_pstore { > + struct virtio_device *vdev; > + struct virtqueue *vq[2]; > + struct pstore_info pstore; > + struct virtio_pstore_req req[VIRT_PSTORE_NR_REQ]; > + struct virtio_pstore_res res[VIRT_PSTORE_NR_REQ]; > + unsigned int req_id; > + > + /* Waiting for host to ack */ > + wait_queue_head_t acked; > + int failed; > +}; > + > +#define TYPE_TABLE_ENTRY(_e...

...type, > > + enum kmsg_dump_reason reason, > > + u64 *id, unsigned int part, int count, > > + bool compressed, size_t size, > > + struct pstore_info *psi) > > +{ > > + struct virtio_pstore *vps = psi->data; > > + struct virtio_pstore_hdr *hdr = &vps->hdr; > > + struct scatterlist sg[2]; > > + unsigned int flags = compressed ? VIRTIO_PSTORE_FL_COMPRESSED : 0; > > + > > +...

...type, > > + enum kmsg_dump_reason reason, > > + u64 *id, unsigned int part, int count, > > + bool compressed, size_t size, > > + struct pstore_info *psi) > > +{ > > + struct virtio_pstore *vps = psi->data; > > + struct virtio_pstore_hdr *hdr = &vps->hdr; > > + struct scatterlist sg[2]; > > + unsigned int flags = compressed ? VIRTIO_PSTORE_FL_COMPRESSED : 0; > > + > > +...

Hello, This is v2 of the virtio-pstore work. In this patchset I addressed most of feedbacks from previous version. Limiting disk size is not implemented yet. * changes in v2) - update VIRTIO_ID_PSTORE to 22 (Cornelia, Stefan) - make buffer size configurable (Cornelia) - support PSTORE_TYPE_CONSOLE (Kees) - use separate virtqueues for read and write - support concurrent async

Hello, This is v2 of the virtio-pstore work. In this patchset I addressed most of feedbacks from previous version. Limiting disk size is not implemented yet. * changes in v2) - update VIRTIO_ID_PSTORE to 22 (Cornelia, Stefan) - make buffer size configurable (Cornelia) - support PSTORE_TYPE_CONSOLE (Kees) - use separate virtqueues for read and write - support concurrent async

...gt; + enum kmsg_dump_reason reason, >> > + u64 *id, unsigned int part, int count, >> > + bool compressed, size_t size, >> > + struct pstore_info *psi) >> > +{ >> > + struct virtio_pstore *vps = psi->data; >> > + struct virtio_pstore_hdr *hdr = &vps->hdr; >> > + struct scatterlist sg[2]; >> > + unsigned int flags = compressed ? VIRTIO_PSTORE_FL_COMPRESSED : 0; &gt...

Hello, This is another iteration of the virtio-pstore work. I've addressed all comments from Daniel Berrange on the qemu side. * changes in v4) - use qio_channel_file_new_path() (Daniel) - rename to delete_old_pstore_file (Daniel) - convert G_REMOVE_SOURCE to FALSE (Daniel) * changes in v3) - use QIOChannel API (Stefan, Daniel) - add bound check for malcious guests

Hello, This is another iteration of the virtio-pstore work. I've addressed all comments from Daniel Berrange on the qemu side. * changes in v4) - use qio_channel_file_new_path() (Daniel) - rename to delete_old_pstore_file (Daniel) - convert G_REMOVE_SOURCE to FALSE (Daniel) * changes in v3) - use QIOChannel API (Stefan, Daniel) - add bound check for malcious guests

Hello, This patchset is a proof of concept of virtio-pstore idea [1]. It has some rough edges and I'm not familiar with this area, so please give me feedbacks and advices if I'm going to a wrong direction. It started from the fact that dumping ftrace buffer at kernel oops/panic takes too much time. Although there's a way to reduce the size of the original data, sometimes I want to

Hello, This patchset is a proof of concept of virtio-pstore idea [1]. It has some rough edges and I'm not familiar with this area, so please give me feedbacks and advices if I'm going to a wrong direction. It started from the fact that dumping ftrace buffer at kernel oops/panic takes too much time. Although there's a way to reduce the size of the original data, sometimes I want to

...t virtio_pstore { > > > + struct virtio_device *vdev; > > > + struct virtqueue *vq[2]; > > > > I'd add named fields instead of an array here, vq[0] > > vq[1] all over the place is hard to read. > > Will change. > > > > > > + struct pstore_info pstore; > > > + struct virtio_pstore_req req[VIRT_PSTORE_NR_REQ]; > > > + struct virtio_pstore_res res[VIRT_PSTORE_NR_REQ]; > > > + unsigned int req_id; > > > + > > > + /* Waiting for host to ack */ > > > + wait_queue_head_t acked; > >...

...t virtio_pstore { > > > + struct virtio_device *vdev; > > > + struct virtqueue *vq[2]; > > > > I'd add named fields instead of an array here, vq[0] > > vq[1] all over the place is hard to read. > > Will change. > > > > > > + struct pstore_info pstore; > > > + struct virtio_pstore_req req[VIRT_PSTORE_NR_REQ]; > > > + struct virtio_pstore_res res[VIRT_PSTORE_NR_REQ]; > > > + unsigned int req_id; > > > + > > > + /* Waiting for host to ack */ > > > + wait_queue_head_t acked; > >...

...T_PSTORE_NR_REQ 128 > > + > > +struct virtio_pstore { > > + struct virtio_device *vdev; > > + struct virtqueue *vq[2]; > > I'd add named fields instead of an array here, vq[0] > vq[1] all over the place is hard to read. Will change. > > > + struct pstore_info pstore; > > + struct virtio_pstore_req req[VIRT_PSTORE_NR_REQ]; > > + struct virtio_pstore_res res[VIRT_PSTORE_NR_REQ]; > > + unsigned int req_id; > > + > > + /* Waiting for host to ack */ > > + wait_queue_head_t acked; > > + int failed; > > +};...