search for: free_vm_area

Don't use alloc_vm_area()/free_vm_area() directly, instead define xen_alloc_vm_area()/xen_free_vm_area() and use them. alloc_vm_area()/free_vm_area() are used to allocate/free area which are for grant table mapping. Xen/x86 grant table is based on virtual address so that alloc_vm_area()/free_vm_area() are suitable. On the other hand Xe...

Don't use alloc_vm_area()/free_vm_area() directly, instead define xen_alloc_vm_area()/xen_free_vm_area() and use them. alloc_vm_area()/free_vm_area() are used to allocate/free area which are for grant table mapping. Xen/x86 grant table is based on virtual address so that alloc_vm_area()/free_vm_area() are suitable. On the other hand Xe...

...ring_ref, evtchn_port_t evtchn) { + struct vm_struct *area; int err; /* Already connected through? */ if (blkif->irq) return 0; - if ( (blkif->blk_ring_area = alloc_vm_area(PAGE_SIZE)) == NULL ) - return -ENOMEM; - - err = map_frontend_page(blkif, shared_page); - if (err) { - free_vm_area(blkif->blk_ring_area); - return err; - } + area = xenbus_map_ring_valloc(blkif->be->dev, ring_ref); + if (IS_ERR(area)) + return PTR_ERR(area); + blkif->blk_ring_area = area; switch (blkif->blk_protocol) { case BLKIF_PROTOCOL_NATIVE: { blkif_sring_t *sring; - sring = (b...

Hi, Xenoprof buffers are mapped into the kernel using direct_kernel_remap_pfn_range(). I need to unmap the buffer when it is not needed anymore. However, I could not find any function that unmaps pages previously mapped with direct_kernel_remap_pfn_range(). Any suggestion on how to do this? Thanks Renato _______________________________________________ Xen-devel mailing list

Hi Jeremy. According to your suggestion, I recreated patches for Ingo's x86.git tree. And this patch series includes Eddie's modification. Please review and forward them. (or push back to respin.) Recently the xen-ia64 community started to make efforts to merge xen/ia64 Linux to upstream. The first step is to merge up domU portion. This patchset is preliminary for xen/ia64 domU linux

Hi Jeremy. According to your suggestion, I recreated patches for Ingo's x86.git tree. And this patch series includes Eddie's modification. Please review and forward them. (or push back to respin.) Recently the xen-ia64 community started to make efforts to merge xen/ia64 Linux to upstream. The first step is to merge up domU portion. This patchset is preliminary for xen/ia64 domU linux

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

Hi Folks, To build drivers externally using linux-2.6-xen-sparse/drivers/xen/util.c, I need the symbols get_vm_area and remove_vm_area exported (they were exported previously - not any more in the latest version). Am I missing something here? -Himanshu -- ------------------------------------------------------------------------- Himanshu Raj PhD Student, GaTech (www.cc.gatech.edu/~rhim) I

...ref[i], + op[i].dom = dev->otherend_id, + op[i].host_addr = arbitrary_virt_to_machine(pte[i]).maddr; + }; if (HYPERVISOR_grant_table_op(GNTTABOP_map_grant_ref, &op, 1)) BUG(); - if (op.status != GNTST_okay) { - free_vm_area(area); - kfree(node); - xenbus_dev_fatal(dev, op.status, - "mapping in shared page %d from domain %d", - gnt_ref, dev->otherend_id); - return op.status; + node->nr_handles =...

...ref[i], + op[i].dom = dev->otherend_id, + op[i].host_addr = arbitrary_virt_to_machine(pte[i]).maddr; + }; if (HYPERVISOR_grant_table_op(GNTTABOP_map_grant_ref, &op, 1)) BUG(); - if (op.status != GNTST_okay) { - free_vm_area(area); - kfree(node); - xenbus_dev_fatal(dev, op.status, - "mapping in shared page %d from domain %d", - gnt_ref, dev->otherend_id); - return op.status; + node->nr_handles =...

...ref[i], + op[i].dom = dev->otherend_id, + op[i].host_addr = arbitrary_virt_to_machine(pte[i]).maddr; + }; if (HYPERVISOR_grant_table_op(GNTTABOP_map_grant_ref, &op, 1)) BUG(); - if (op.status != GNTST_okay) { - free_vm_area(area); - kfree(node); - xenbus_dev_fatal(dev, op.status, - "mapping in shared page %d from domain %d", - gnt_ref, dev->otherend_id); - return op.status; + node->nr_handles =...

...d_info *); static void backend_changed(struct xenbus_watch *, const char **, unsigned int); +static void xen_vbd_sync(struct xen_vbd *vbd); struct xenbus_device *xen_blkbk_xenbus(struct backend_info *be) { @@ -232,6 +233,7 @@ static void xen_blkif_disconnect(struct xen_blkif *blkif) free_vm_area(blkif->blk_ring_area); blkif->blk_rings.common.sring = NULL; } + xen_vbd_sync(&blkif->vbd); } void xen_blkif_free(struct xen_blkif *blkif) @@ -332,6 +334,12 @@ static void xen_vbd_free(struct xen_vbd *vbd) vbd->bdev = NULL; } +static void xen_vbd_sync(struct xen_vbd *v...

Hi. Recently the xen-ia64 community started to make efforts to merge xen/ia64 Linux to upstream. The first step is to merge up domU portion. This patchset is preliminary for xen/ia64 domU linux making the current xen/x86 domU code more arch generic and adding missing definitions and files. Diffstat: arch/x86/xen/Makefile | 4 +- arch/x86/xen/grant-table.c | 91

Hi. Recently the xen-ia64 community started to make efforts to merge xen/ia64 Linux to upstream. The first step is to merge up domU portion. This patchset is preliminary for xen/ia64 domU linux making the current xen/x86 domU code more arch generic and adding missing definitions and files. Diffstat: arch/x86/xen/Makefile | 4 +- arch/x86/xen/grant-table.c | 91

Hi. Recently the xen-ia64 community started to make efforts to merge xen/ia64 Linux to upstream. The first step is to merge up domU portion. This patchset is preliminary for xen/ia64 domU linux making the current xen/x86 domU code more arch generic and adding missing definitions and files. Diffstat: arch/x86/xen/Makefile | 4 +- arch/x86/xen/grant-table.c | 91

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

Hi. This patchset implements xen/ia64 domU support. Qing He and Eddie Dong also has been woring on pv_ops so that I want to discuss before going further and avoid duplicated work. I suppose that Eddie will also post his own patch. So reviewing both patches, we can reach to better pv_ops interface. - I didn't changed the ia64 intrinsic paravirtulization abi from the last post. Presumably it

Hi. This patchset implements xen/ia64 domU support. Qing He and Eddie Dong also has been woring on pv_ops so that I want to discuss before going further and avoid duplicated work. I suppose that Eddie will also post his own patch. So reviewing both patches, we can reach to better pv_ops interface. - I didn't changed the ia64 intrinsic paravirtulization abi from the last post. Presumably it

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 block

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 block