search for: otherend_id

The attached patches allow the pciback module to perform a reset whenever a PCI device is: - attached to the pciback module, as so: echo "0000:01.07.0" > /sys/bus/pci/devices/pciback/bind - detached from the pciback module, as so: echo "0000:01.07.0" > /sys/bus/pci/devices/pciback/unbind - and when the guest is done with (internally when the guest is not using

...ng, and the first error will be saved in the store. */ -int xenbus_grant_ring(struct xenbus_device *dev, unsigned long ring_mfn) +int xenbus_grant_ring(struct xenbus_device *dev, void *vaddr, + int nr_pages, int grefs[]) { - int err = gnttab_grant_foreign_access(dev->otherend_id, ring_mfn, 0); - if (err < 0) - xenbus_dev_fatal(dev, err, "granting access to ring page"); + int i; + int err; + + for (i = 0; i < nr_pages; i++) { + unsigned long addr = (unsigned long)vaddr + + (PAGE_SIZE *...

...ng, and the first error will be saved in the store. */ -int xenbus_grant_ring(struct xenbus_device *dev, unsigned long ring_mfn) +int xenbus_grant_ring(struct xenbus_device *dev, void *vaddr, + int nr_pages, int grefs[]) { - int err = gnttab_grant_foreign_access(dev->otherend_id, ring_mfn, 0); - if (err < 0) - xenbus_dev_fatal(dev, err, "granting access to ring page"); + int i; + int err; + + for (i = 0; i < nr_pages; i++) { + unsigned long addr = (unsigned long)vaddr + + (PAGE_SIZE *...

...ng, and the first error will be saved in the store. */ -int xenbus_grant_ring(struct xenbus_device *dev, unsigned long ring_mfn) +int xenbus_grant_ring(struct xenbus_device *dev, void *vaddr, + int nr_pages, int grefs[]) { - int err = gnttab_grant_foreign_access(dev->otherend_id, ring_mfn, 0); - if (err < 0) - xenbus_dev_fatal(dev, err, "granting access to ring page"); + int i; + int err; + + for (i = 0; i < nr_pages; i++) { + unsigned long addr = (unsigned long)vaddr + + (PAGE_SIZE *...

...buff *skb, struct net_device *dev, ref = gnttab_claim_grant_reference(&np->gref_tx_head); BUG_ON((signed short)ref < 0); - mfn = pfn_to_mfn(page_to_pfn(frag->page)); + mfn = pfn_to_mfn(page_to_pfn(skb_frag_page(frag))); gnttab_grant_foreign_access_ref(ref, np->xbdev->otherend_id, mfn, GNTMAP_readonly); @@ -762,23 +762,22 @@ static RING_IDX xennet_fill_frags(struct netfront_info *np, struct skb_shared_info *shinfo = skb_shinfo(skb); int nr_frags = shinfo->nr_frags; RING_IDX cons = np->rx.rsp_cons; - skb_frag_t *frag = shinfo->frags + nr_frags; stru...

Dear list, This is the V4 of the trim support for xen-blkfront/blkback, Now we move BLKIF_OP_TRIM to BLKIF_OP_DISCARD, and dropped all "trim" stuffs in the patches, and use "discard" instead. Also we updated the helpers of blkif_x86_{32|64}_request or we will meet problems using a non-native protocol. And this patch has been tested with both SSD and raw file, with SSD we will

This is a cherry pick of two patches that add support for guest paged out frames in the XCP 2.6.32 dom0 patch queue. First patch propagates the ENOENT returned by the hypervisor in the case of a paged out page, all the way up the call chain to the MMAPBATCH_V2 ioctl. The ioctl is mainly used to harvest those return values and retry. The second patch adds retry loops to all backend grant

...ne http://lists.xensource.com/archives/html/xen-devel/2005-10/msg01199.html in the xenidc endpoint code. It is designed to be robust against stale state left in the store and was working nicely for module load and unload. There were a couple of small wins for my code: I could use the otherend and otherend_id fields from the xenbus_device instead of having my own and I was able to remove the xenbus_gather from the FE since it doesn''t need any configuration parameters other than the otherend and otherend_id fields. The BE still needs to read the USB path so I couldn''t remove the gather...

Patrick, there following patches fix xenpaging for me. Granttable handling is incomplete. If a page is gone, a GNTST_eagain should be returned to the caller to inidcate the hypercall has to be retried after a while, until the page is available again. Please review. Olaf _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com

...rame[i] = mfn_to_pfn(buffer_mfn); ring_req->u.rw.seg[i] = (struct blkif_request_segment) { .gref = ref, @@ -1269,7 +1265,7 @@ static int blkif_recover(struct blkfront_info *info) gnttab_grant_foreign_access_ref( req->u.rw.seg[j].gref, info->xbdev->otherend_id, - pfn_to_mfn(info->shadow[req->u.rw.id].frame[j]), + pfn_to_mfn(copy[i].grants_used[j]->pfn), 0); } info->shadow[req->u.rw.id].req = *req; -- 1.7.7.5 (Apple Git-26) _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org...

...efp = &d->buffer_first_gref; for (i = 0; i < buffer_num_pages; i++) { printk(KERN_INFO "Mounting GREF %d\n", *grefp); memset(&op, 0, sizeof(op)); op.host_addr = x->buffer_addr + i * PAGE_SIZE; op.flags = GNTMAP_host_map; op.ref = *grefp; op.dom = x->otherend_id; rc = HYPERVISOR_grant_table_op(GNTTABOP_map_grant_ref, &op, 1); if (rc == -ENOSYS) { goto err_unmap; } if (op.status) { DPRINTK("error: grant table mapping failed\n"); goto err_unmap; } x->buffer_handles[i] = op.handle; grefp...

...7 @@ int xenbus_map_ring_valloc(struct xenbus_device *dev, int gnt_ref, void **vaddr) BUG(); if (op.status != GNTST_okay) { - free_vm_area(area); + xen_free_vm_area(area); xenbus_dev_fatal(dev, op.status, "mapping in shared page %d from domain %d", gnt_ref, dev->otherend_id); @@ -508,7 +508,7 @@ int xenbus_unmap_ring_vfree(struct xenbus_device *dev, void *vaddr) BUG(); if (op.status == GNTST_okay) - free_vm_area(area); + xen_free_vm_area(area); else xenbus_dev_error(dev, op.status, "unmapping page at handle %d error %d", diff --git a/incl...

...7 @@ int xenbus_map_ring_valloc(struct xenbus_device *dev, int gnt_ref, void **vaddr) BUG(); if (op.status != GNTST_okay) { - free_vm_area(area); + xen_free_vm_area(area); xenbus_dev_fatal(dev, op.status, "mapping in shared page %d from domain %d", gnt_ref, dev->otherend_id); @@ -508,7 +508,7 @@ int xenbus_unmap_ring_vfree(struct xenbus_device *dev, void *vaddr) BUG(); if (op.status == GNTST_okay) - free_vm_area(area); + xen_free_vm_area(area); else xenbus_dev_error(dev, op.status, "unmapping page at handle %d error %d", diff --git a/incl...

The following series of 10 patches is a merge of the xenfb and xenconsoled functionality into the qemu-dm code. The general approach taken is to have qemu-dm provide two machine types - one for xen paravirt, the other for fullyvirt. For compatability the later is the default. The goals overall are to kill LibVNCServer, remove alot of code duplication and/or parallel impls of the same concepts, and

...alloc EXPORT_SYMBOL_GPL(xenbus_map_ring_valloc); -int xenbus_map_ring(struct xenbus_device *dev, int gnt_ref, - grant_handle_t *handle, void *vaddr) -{ - struct gnttab_map_grant_ref op; - int ret; - - gnttab_set_map_op(&op, (unsigned long)vaddr, GNTMAP_host_map, - gnt_ref, dev->otherend_id); - - gnttab_check_GNTST_eagain_do_while(GNTTABOP_map_grant_ref, &op); - - if (op.status != GNTST_okay) { - xenbus_dev_fatal(dev, op.status, - "mapping in shared page %d from domain %d", - gnt_ref, dev->otherend_id); - ret = -EINVAL; - } else { - *handle = op.handle; -...

...ENOMEM; + + gnt_list_entry->frame = + page_to_pfn(shared_page); + gnt_list_entry->gref = ref; + } else + shared_page = sg_page(sg); + + buffer_mfn = pfn_to_mfn(page_to_pfn( + shared_page)); + gnttab_grant_foreign_access_ref( ref, info->xbdev->otherend_id, buffer_mfn, - rq_data_dir(req)); + !use_pers_gnts && rq_data_dir(req)); + } + + if (use_pers_gnts) + info->shadow[id].grants_used[i] = + gnt_list_entry; + + if (use_pers_gnts && rq_data_dir(req)) { + shared_data = kmap_atomic( + pfn_to_page(gnt_...

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *

Hi Andi, This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual