Re: [PATCHv7 05/26] vfio: introduce the VFIO_DMA_MAP_FLAG_NOEXEC flag

On Tue, 2014-09-23 at 16:46 +0200, Antonios Motakis wrote: We introduce the VFIO_DMA_MAP_FLAG_NOEXEC flag to the VFIO dma map call, and expose its availability via the capability VFIO_IOMMU_PROT_NOEXEC. This way the user can control whether the XN flag will be set on the requested mappings.

Re: [PATCHv7 05/26] vfio: introduce the VFIO_DMA_MAP_FLAG_NOEXEC flag

On Tue, 2014-09-23 at 16:21 -0600, Alex Williamson wrote: On Tue, 2014-09-23 at 16:46 +0200, Antonios Motakis wrote: We introduce the VFIO_DMA_MAP_FLAG_NOEXEC flag to the VFIO dma map call, and expose its availability via the capability VFIO_IOMMU_PROT_NOEXEC. This way the user can control

Re: [PATCHv7 10/26] vfio: platform: probe to devices on the platform bus

On Tue, 2014-09-23 at 16:46 +0200, Antonios Motakis wrote: Driver to bind to Linux platform devices, and callbacks to discover their resources to be used by the main VFIO PLATFORM code. Signed-off-by: Antonios Motakis a.mota...@virtualopensystems.com ---

Re: [PATCHv7 10/26] vfio: platform: probe to devices on the platform bus

On Fri, 2014-09-26 at 17:30 +0200, Antonios Motakis wrote: On Wed, Sep 24, 2014 at 1:01 AM, Alex Williamson alex.william...@redhat.com wrote: On Tue, 2014-09-23 at 16:46 +0200, Antonios Motakis wrote: Driver to bind to Linux platform devices, and callbacks to discover their resources

Re: [PATCH 2/5] vfio: introduce the VFIO_DMA_MAP_FLAG_NOEXEC flag

On Mon, 2014-10-13 at 15:09 +0200, Antonios Motakis wrote: We introduce the VFIO_DMA_MAP_FLAG_NOEXEC flag to the VFIO dma map call, and expose its availability via the capability VFIO_DMA_NOEXEC_IOMMU. This way the user can control whether the XN flag will be set on the requested mappings. The

Re: [PATCH v8 02/18] vfio: platform: probe to devices on the platform bus

On Mon, 2014-10-13 at 15:10 +0200, Antonios Motakis wrote: Driver to bind to Linux platform devices, and callbacks to discover their resources to be used by the main VFIO PLATFORM code. Signed-off-by: Antonios Motakis a.mota...@virtualopensystems.com ---

Re: [PATCH v2 1/6] vfio: implement iommu driver capabilities with an enum

On Mon, 2014-10-27 at 19:05 +0100, Antonios Motakis wrote: Currently a VFIO driver's IOMMU capabilities are encoded as a series of numerical defines. Replace this with an enum for future maintainability. Signed-off-by: Antonios Motakis a.mota...@virtualopensystems.com ---

Re: [RFC PATCH v4 1/3] vfio: platform: add device properties skeleton and user API

On Wed, 2015-09-09 at 11:17 +0200, Baptiste Reynal wrote: > From: Antonios Motakis > > This patch introduces an API that allows to return device properties (OF > or ACPI) of a device bound to the vfio-platform/vfio-amba driver and the > skeleton of the

Re: [RFC PATCH 2/3] vfio-pci: Allow to mmap sub-page MMIO BARs if all MMIO BARs are page aligned

On Fri, 2015-12-11 at 16:53 +0800, Yongji Xie wrote: > Current vfio-pci implementation disallows to mmap > sub-page(size < PAGE_SIZE) MMIO BARs because these BARs' mmio page > may be shared with other BARs. > > But we should allow to mmap these sub-page MMIO BARs if all MMIO BARs > are page

Re: [RFC PATCH 3/3] vfio-pci: Allow to mmap MSI-X table if EEH is supported

On Fri, 2015-12-11 at 16:53 +0800, Yongji Xie wrote: > Current vfio-pci implementation disallows to mmap MSI-X table in > case that user get to touch this directly. > > However, EEH mechanism could ensure that a given pci device > can only shoot the MSIs assigned for its PE and guest kernel also

Re: [RFC PATCH 3/3] vfio-pci: Allow to mmap MSI-X table if EEH is supported

On Thu, 2015-12-17 at 10:08 +, David Laight wrote: > > The MSI-X table is paravirtualized on vfio in general and interrupt > > remapping theoretically protects against errant interrupts, so why > > is > > this PPC64 specific? We have the same safeguards on x86 if we want > > to > > decide

Re: [RFC PATCH 3/3] vfio-pci: Allow to mmap MSI-X table if EEH is supported

On Thu, 2015-12-17 at 18:37 +0800, yongji xie wrote: > > On 2015/12/17 4:14, Alex Williamson wrote: > > On Fri, 2015-12-11 at 16:53 +0800, Yongji Xie wrote: > > > Current vfio-pci implementation disallows to mmap MSI-X table in > > > case that user get to touch this

Re: [RFC PATCH 2/3] vfio-pci: Allow to mmap sub-page MMIO BARs if all MMIO BARs are page aligned

On Thu, 2015-12-17 at 18:26 +0800, yongji xie wrote: > > On 2015/12/17 4:04, Alex Williamson wrote: > > On Fri, 2015-12-11 at 16:53 +0800, Yongji Xie wrote: > > > Current vfio-pci implementation disallows to mmap > > > sub-page(size < PAGE_SIZE) MMIO BARs be

Re: [PATCH] drivers/char/mem.c: Add /dev/ioports, supporting 16-bit and 32-bit ports

On Tue, 2015-12-29 at 22:00 +0530, Santosh Shukla wrote: > On Tue, Dec 29, 2015 at 9:50 PM, Arnd Bergmann wrote: > > On Tuesday 29 December 2015 21:25:15 Santosh Shukla wrote: > > > mistakenly added wrong email-id of alex, looping his correct one. > > > > > > On 29 December 2015

Re: [PATCH] drivers/char/mem.c: Add /dev/ioports, supporting 16-bit and 32-bit ports

On Thu, 2015-12-31 at 15:03 +0530, Santosh Shukla wrote: > On Tue, Dec 29, 2015 at 11:01 PM, Alex Williamson > <alex.william...@redhat.com> wrote: > > On Tue, 2015-12-29 at 22:00 +0530, Santosh Shukla wrote: > > > On Tue, Dec 29, 2015 at 9:50 PM, Arnd Bergmann