Re: [Xen-devel] [RFC v2 02/15] iommu: Add iommu_intpost to control VT-d Posted-Interrupts feature

2015-06-09 Thread Jan Beulich
>>> On 08.05.15 at 11:07, wrote: > @@ -51,6 +52,7 @@ bool_t __read_mostly iommu_passthrough; > bool_t __read_mostly iommu_snoop = 1; > bool_t __read_mostly iommu_qinval = 1; > bool_t __read_mostly iommu_intremap = 1; > +bool_t __read_mostly iommu_intpost = 0; Pointless initializer. > @@ -94,7

[Xen-devel] [RFC v2 02/15] iommu: Add iommu_intpost to control VT-d Posted-Interrupts feature

2015-05-08 Thread Feng Wu
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 when guest is running in non-root mode. This patch adds variable 'iommu_intpost' to contr