Re: [PATCH v2 0/5] Export offsets of VMCS fields as note information for kdump

于 2012年05月22日 02:58, Eric Northup 写道: > On Wed, May 16, 2012 at 12:50 AM, zhangyanfei > wrote: >> >> This patch set exports offsets of VMCS fields as note information for >> kdump. We call it VMCSINFO. The purpose of VMCSINFO is to retrieve >> runtime state of guest machine image, such as register

Re: [PATCH v2 0/5] Export offsets of VMCS fields as note information for kdump

于 2012年05月21日 17:36, Avi Kivity 写道: > On 05/21/2012 12:08 PM, Yanfei Zhang wrote: >> 于 2012年05月21日 16:34, Avi Kivity 写道: >>> On 05/21/2012 05:32 AM, Yanfei Zhang wrote: 于 2012年05月21日 01:43, Avi Kivity 写道: > On 05/16/2012 10:50 AM, zhangyanfei wrote: >> This patch set exports offsets of

[PATCH v2 04/13] pci: Add PCI DMA source ID quirk

DMA transactions are tagged with the source ID of the device making the request. Occasionally hardware screws this up and uses the source ID of a different device (often the wrong function number of a multifunction device). A specific Ricoh multifunction device is a prime example of this problem

[PATCH v2 07/13] vfio: VFIO core

VFIO is a secure user level driver for use with both virtual machines and user level drivers. VFIO makes use of IOMMU groups to ensure the isolation of devices in use, allowing unprivileged user access. It's intended that VFIO will replace KVM device assignment and UIO drivers (in cases where the

[PATCH v2 11/13] pci: Create common pcibios_err_to_errno

For returning errors out to non-PCI code. Re-name xen's version. Signed-off-by: Alex Williamson Acked-by: Konrad Rzeszutek Wilk --- drivers/xen/xen-pciback/conf_space.c |6 +++--- include/linux/pci.h | 26 ++ 2 files changed, 29 insertions(+), 3

[PATCH v2 12/13] pci: Misc pci_reg additions

Fill in many missing definitions and add sizeof fields for many sections allowing for more extensive config parsing. Signed-off-by: Alex Williamson --- include/linux/pci_regs.h | 112 +- 1 files changed, 100 insertions(+), 12 deletions(-) diff --git

[PATCH v2 10/13] pci: export pci_user functions for use by other drivers

VFIO PCI support will make use of these for user initiated PCI config accesses. Signed-off-by: Alex Williamson Acked-by: Bjorn Helgaas --- drivers/pci/access.c |6 -- drivers/pci/pci.h|7 --- include/linux/pci.h |8 3 files changed, 12 insertions(+), 9 deletio

[PATCH v2 09/13] vfio: x86 IOMMU implementation

x86 is probably the wrong name for this VFIO IOMMU driver, but x86 is the primary target for it. This driver support a very simple usage model using the existing IOMMU API. The IOMMU is expected to support the full host address space with no special IOVA windows, number of mappings restrictions,

[PATCH v2 08/13] vfio: Add documentation

Signed-off-by: Alex Williamson --- Documentation/vfio.txt | 315 1 files changed, 315 insertions(+), 0 deletions(-) create mode 100644 Documentation/vfio.txt diff --git a/Documentation/vfio.txt b/Documentation/vfio.txt new file mode 100644 inde

[PATCH v2 01/13] driver core: Add iommu_group tracking to struct device

IOMMU groups allow IOMMU drivers to represent DMA visibility and isolation of devices. Multiple devices may be grouped together for the purposes of DMA. Placing a pointer on struct device enable easy access for things like streaming DMA programming and drivers like VFIO. Signed-off-by: Alex Will

[PATCH v2 00/13] IOMMU Groups + VFIO

found here on top of 3.4: git://github.com/awilliam/linux-vfio.git iommu-group-vfio-20120521 The Qemu tree has also been updated to Qemu 1.1 and can be found here: git://github.com/awilliam/qemu-vfio.git iommu-group-vfio I'd really like to make a push to get this in for 3.5, so let's talk

[PATCH v2 02/13] iommu: IOMMU Groups

IOMMU device groups are currently a rather vague associative notion with assembly required by the user or user level driver provider to do anything useful. This patch intends to grow the IOMMU group concept into something a bit more consumable. To do this, we first create an object representing t

[PATCH v2 03/13] iommu: IOMMU groups for VT-d and AMD-Vi

Add back group support for AMD & Intel. amd_iommu already tracks devices and has init and uninit routines to manage groups. intel-iommu does this on the fly, so we make use of the notifier support built into iommu groups to create and remove groups. Signed-off-by: Alex Williamson --- drivers/i

[PATCH v2 06/13] iommu: Make use of DMA quirking and ACS enabled check for groups

Incorporate DMA quirking and ACS checking into amd_iommu and intel-iommu. Note that IOMMU groups are not yet used for streaming DMA, so this doesn't immediately solve the problems with broken Ricoh devices. This a very strict implementation of ACS checking, which will often result in multifunctio

[PATCH v2 05/13] pci: Add ACS validation utility

In a PCI environment, transactions aren't always required to reach the root bus before being re-routed. Intermediate switches between an endpoint and the root bus can redirect DMA back downstream before things like IOMMUs have a chance to intervene. Legacy PCI is always susceptible to this as it

Re: [PATCH] KVM: fix async page fault working for readonly mapping

On Mon, May 21, 2012 at 04:30:41PM -0300, Marcelo Tosatti wrote: > On Mon, May 21, 2012 at 04:15:50PM +0800, Xiao Guangrong wrote: > > On 05/21/2012 04:08 PM, Gleb Natapov wrote: > > > > > On Mon, May 21, 2012 at 02:45:45PM +0800, Xiao Guangrong wrote: > > >> If we map a readonly memory space from

Re: [RFC PATCH] qemu pci: pci_add_capability enhancement to prevent damaging config space

On 22.05.2012, at 05:44, Alexey Kardashevskiy wrote: > On 22/05/12 13:21, Alexander Graf wrote: >> >> >> On 22.05.2012, at 04:02, Benjamin Herrenschmidt >> wrote: >> >>> On Fri, 2012-05-18 at 15:12 +1000, Alexey Kardashevskiy wrote: Alexander, Is that any better? :) >>> >>

Re: [RFC PATCH] qemu pci: pci_add_capability enhancement to prevent damaging config space

On 22/05/12 15:52, Alexander Graf wrote: > > > On 22.05.2012, at 05:44, Alexey Kardashevskiy wrote: > >> On 22/05/12 13:21, Alexander Graf wrote: >>> >>> >>> On 22.05.2012, at 04:02, Benjamin Herrenschmidt >>> wrote: >>> On Fri, 2012-05-18 at 15:12 +1000, Alexey Kardashevskiy wrote:

Re: [RFC PATCH] qemu pci: pci_add_capability enhancement to prevent damaging config space

On 22.05.2012, at 08:11, Alexey Kardashevskiy wrote: > On 22/05/12 15:52, Alexander Graf wrote: >> >> >> On 22.05.2012, at 05:44, Alexey Kardashevskiy wrote: >> >>> On 22/05/12 13:21, Alexander Graf wrote: On 22.05.2012, at 04:02, Benjamin Herrenschmidt wrote:

Re: [RFC PATCH] qemu pci: pci_add_capability enhancement to prevent damaging config space

On 22.05.2012, at 08:11, Alexey Kardashevskiy wrote: > On 22/05/12 15:52, Alexander Graf wrote: >> >> >> On 22.05.2012, at 05:44, Alexey Kardashevskiy wrote: >> >>> On 22/05/12 13:21, Alexander Graf wrote: On 22.05.2012, at 04:02, Benjamin Herrenschmidt wrote:

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