Re: [PATCH v6 00/12] NVIDIA Tegra memory controller and IOMMU support

2014-11-10 Thread Alexandre Courbot
On 11/08/2014 01:00 AM, Thierry Reding wrote: From: Thierry Reding tred...@nvidia.com This is the sixth installment in the Tegra IOMMU and memory controller support series. This version addresses the final outstanding comments from Olof about using proper Kconfig symbols to track the

[PATCH] iommu/amd: fix accounting of device_state

2014-11-10 Thread Oded Gabbay
This patch fixes a bug in the accounting of the device_state. In the current code, the device_state was put (decremented) too many times, which sometimes lead to the driver getting stuck permanently in put_device_state_wait(). That happen because the device_state-count would go below zero, which

Re: [PATCH] iommu/arm-smmu: Play nice on non-ARM/SMMU systems

2014-11-10 Thread Will Deacon
On Fri, Nov 07, 2014 at 03:26:18PM +, Thierry Reding wrote: From: Thierry Reding tred...@nvidia.com Currently the driver registers IOMMU bus operations for all busses even if no ARM SMMU is present on a system. Depending on the driver probing order this prevents the driver for the real

Re: [PATCH 05/13] KVM: Update IRTE according to guest interrupt configuration changes

2014-11-10 Thread Alex Williamson
On Mon, 2014-11-10 at 14:26 +0800, Feng Wu wrote: When guest changes its interrupt configuration (such as, vector, etc.) for direct-assigned devices, we need to update the associated IRTE with the new guest vector, so external interrupts from the assigned devices can be injected to guests

Re: several messages

2014-11-10 Thread Jiang Liu
On 2014/11/11 2:15, Thomas Gleixner wrote: On Mon, 10 Nov 2014, Feng Wu wrote: VT-d Posted-Interrupts is an enhancement to CPU side Posted-Interrupt. With VT-d Posted-Interrupts enabled, external interrupts from direct-assigned devices can be delivered to guests without VMM intervention

RE: several messages

2014-11-10 Thread Wu, Feng
-Original Message- From: Jiang Liu [mailto:jiang@linux.intel.com] Sent: Tuesday, November 11, 2014 10:29 AM To: Thomas Gleixner; Wu, Feng Cc: g...@kernel.org; pbonz...@redhat.com; David Woodhouse; j...@8bytes.org; mi...@redhat.com; H. Peter Anvin; x...@kernel.org;