>>> "Wu, Feng" 09/08/15 4:39 AM >>>
>> From: Jan Beulich [mailto:jbeul...@suse.com]
>> Sent: Monday, September 07, 2015 6:43 PM
>> >>> On 06.09.15 at 03:49, wrote:
>> >> From: Jan Beulich [mailto:jbeul...@suse.com]
>> >> Sent: Friday, September 04, 2015 10:31 PM
>> >> >>> On 25.08.15 at 03:57, w
> -Original Message-
> From: Jan Beulich [mailto:jbeul...@suse.com]
> Sent: Monday, September 07, 2015 6:43 PM
> To: Wu, Feng
> Cc: Tian, Kevin; Zhang, Yang Z; xen-devel@lists.xen.org
> Subject: RE: [Xen-devel] [PATCH v6 04/18] vt-d: VT-d Posted-Interrupts feature
>
>>> On 06.09.15 at 03:49, wrote:
>> From: Jan Beulich [mailto:jbeul...@suse.com]
>> Sent: Friday, September 04, 2015 10:31 PM
>> >>> On 25.08.15 at 03:57, wrote:
>> > --- a/xen/drivers/passthrough/vtd/iommu.c
>> > +++ b/xen/drivers/passthrough/vtd/iommu.c
>> > @@ -2079,6 +2079,9 @@ static int ini
> -Original Message-
> From: Jan Beulich [mailto:jbeul...@suse.com]
> Sent: Friday, September 04, 2015 10:31 PM
> To: Wu, Feng
> Cc: Tian, Kevin; Zhang, Yang Z; xen-devel@lists.xen.org
> Subject: Re: [Xen-devel] [PATCH v6 04/18] vt-d: VT-d Posted-Interrupts f
>>> On 25.08.15 at 03:57, wrote:
> --- a/xen/drivers/passthrough/vtd/iommu.c
> +++ b/xen/drivers/passthrough/vtd/iommu.c
> @@ -2079,6 +2079,9 @@ static int init_vtd_hw(void)
> disable_intremap(drhd->iommu);
> }
>
> +if ( !iommu_intremap )
> +iommu_intpost = 0;
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.
CC: Yang Zhang
CC: Kevin Tian
Signed-off-by: Fe
