search for: unmappings

Hello everyone! If this message was posted twice, my apologies. I'm having issues with my webmail today... I am using the testing version of NUT from SVN at changeset 582. I have successfully created a stub for newhidups driver for my Dynex DX-800U UPS, but I am completely lost on the customization of it. I've followed the hid-subdrivers.txt instructions and I understand I need to

http://bugs.freedesktop.org/show_bug.cgi?id=14941 Summary: ioremap leak in DRM Product: xorg Version: unspecified Platform: x86-64 (AMD64) OS/Version: Linux (All) Status: NEW Severity: minor Priority: medium Component: Driver/nouveau AssignedTo: nouveau at lists.freedesktop.org ReportedBy:

This is version 0.5 of the virtio-iommu specification, the paravirtualized IOMMU. This version addresses feedback from v0.4 and adds an event virtqueue. Please find the specification, LaTeX sources and pdf, at: git://linux-arm.org/virtio-iommu.git viommu/v0.5 http://linux-arm.org/git?p=virtio-iommu.git;a=blob;f=dist/v0.5/virtio-iommu-v0.5.pdf A detailed changelog since v0.4 follows. You can find

This is version 0.5 of the virtio-iommu specification, the paravirtualized IOMMU. This version addresses feedback from v0.4 and adds an event virtqueue. Please find the specification, LaTeX sources and pdf, at: git://linux-arm.org/virtio-iommu.git viommu/v0.5 http://linux-arm.org/git?p=virtio-iommu.git;a=blob;f=dist/v0.5/virtio-iommu-v0.5.pdf A detailed changelog since v0.4 follows. You can find

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

On Fri, Oct 12, 2018 at 02:06:28PM -0700, Daniel Verkamp wrote: > From: Changpeng Liu <changpeng.liu at intel.com> > > In commit 88c85538, "virtio-blk: add discard and write zeroes features > to specification" (https://github.com/oasis-tcs/virtio-spec), the virtio There is some issues in this spec. For one using the multiple ranges also for write zeroes is rather

On Fri, Oct 12, 2018 at 02:06:28PM -0700, Daniel Verkamp wrote: > From: Changpeng Liu <changpeng.liu at intel.com> > > In commit 88c85538, "virtio-blk: add discard and write zeroes features > to specification" (https://github.com/oasis-tcs/virtio-spec), the virtio There is some issues in this spec. For one using the multiple ranges also for write zeroes is rather

Hello, I find "discard":"unmap" is defaultly enabled in qemu cmdline(libvirt v6.6, qemu v5.1): XML: <disk type="file" device="disk"> <driver name="qemu" type="qcow2"/> <source file="/var/lib/libvirt/images/new.qcow2" index="2"/> <backingStore/> <target

On Oct 17, 2017, at 8:48 AM, LLSJ Kr?ger <llsjk at lakruger.za.org> wrote: > Results of 'lsusb -vvv -d 3344:' [...] > wDescriptorLength 136 > Report Descriptors: > ** UNAVAILABLE ** > Can you please re-run lsusb, possibly as root, to grab the contents of the "Report Descriptors" section? (Running "usbhid-ups"

On Thu, Apr 16, 2015 at 8:06 PM, Vince Hsu <vinceh at nvidia.com> wrote: > This patch implements a way to aggregate the small pages and make them be > mapped as big page(s) by utilizing the platform IOMMU if supported. And then > we can enable compression support for these big pages later. > > Signed-off-by: Vince Hsu <vinceh at nvidia.com> > --- >

On Sat, Apr 18, 2015 at 12:37 AM, Terje Bergstrom <tbergstrom at nvidia.com> wrote: > > On 04/17/2015 02:11 AM, Alexandre Courbot wrote: >> >> Tracking the PDE and PTE of each memory chunk can probably be avoided >> if you change your unmapping strategy. Currently you are going through >> the list of nvkm_vm_bp_list, but you know your PDE and PTE are always

Add infrastructure to keep track of GPU virtual address (VA) mappings with a decicated VA space manager implementation. New UAPIs, motivated by Vulkan sparse memory bindings graphics drivers start implementing, allow userspace applications to request multiple and arbitrary GPU VA mappings of buffer objects. The DRM GPU VA manager is intended to serve the following purposes in this context. 1)

On Thu, Oct 22, 2020 at 10:57:05 +0800, Han Han wrote: > Hello, > I find "discard":"unmap" is defaultly enabled in qemu cmdline(libvirt > v6.6, qemu v5.1): > XML: > <disk type="file" device="disk"> > <driver name="qemu" type="qcow2"/> > <source

Add infrastructure to keep track of GPU virtual address (VA) mappings with a decicated VA space manager implementation. New UAPIs, motivated by Vulkan sparse memory bindings graphics drivers start implementing, allow userspace applications to request multiple and arbitrary GPU VA mappings of buffer objects. The DRM GPU VA manager is intended to serve the following purposes in this context. 1)

Hi Xen folks! I''ve faced with one strange thing in ARM version of Xen: when I use xc_map_foreign_bulk() to map some memory from domU to dom0, after unmap() for previous returned address - memory is not freed at all. Let''s look at call stack: xc_map_foreign() -> linux_privcmd_map_foreign_bulk() -> { addr = mmap(fd); ioctl(fd, IOCTL_PRIVCMD_MMAPBATCH_V2 );

Add infrastructure to keep track of GPU virtual address (VA) mappings with a decicated VA space manager implementation. New UAPIs, motivated by Vulkan sparse memory bindings graphics drivers start implementing, allow userspace applications to request multiple and arbitrary GPU VA mappings of buffer objects. The DRM GPU VA manager is intended to serve the following purposes in this context. 1)

----- Forwarded message from braindevices <notifications@github.com> ----- Subject: [libguestfs/libguestfs] is there a way to set discard=unmap when using guestmount? (#52) I cannot find anything in the document. This option is very important for dynamic qcow2 disks. Without out this the IO is super slow even on tmpfs only 3MB/s. Subject: Re: [libguestfs/libguestfs] is there a way to

Is it possible to make discard='unmap' the default for virtio-scsi disks? (Related, is it possible to make virtio-scsi the default disk type, rather than virtio-blk?) Thanks! -- ======================================================================== Ian Pilcher arequipeno@gmail.com -------- "I grew up before Mark Zuckerberg invented

Add a flush_iotlb_range to allow flushing of an iova range instead of a full flush in the dma-iommu path. Allow the iommu_unmap_fast to return newly freed page table pages and pass the freelist to queue_iova in the dma-iommu ops path. This patch is useful for iommu drivers (in this case the intel iommu driver) which need to wait for the ioTLB to be flushed before newly free/unmapped page table

Add a flush_iotlb_range to allow flushing of an iova range instead of a full flush in the dma-iommu path. Allow the iommu_unmap_fast to return newly freed page table pages and pass the freelist to queue_iova in the dma-iommu ops path. This patch is useful for iommu drivers (in this case the intel iommu driver) which need to wait for the ioTLB to be flushed before newly free/unmapped page table