Re: [PATCH v6 09/22] vfio: VFIO_IOMMU_BIND/UNBIND_MSI

2019-04-10 Thread Marc Zyngier
Hi Vincent, On 10/04/2019 13:35, Vincent Stehlé wrote: > On Thu, Apr 04, 2019 at 08:55:25AM +0200, Auger Eric wrote: >> Hi Marc, Robin, Alex, > (..) >> Do you think this is a reasonable assumption to consider devices within >> the same host iommu group share the same MSI doorbell? > > Hi Eric, >

Re: [PATCH v6 09/22] vfio: VFIO_IOMMU_BIND/UNBIND_MSI

2019-04-10 Thread Auger Eric
Hi Vincent, On 4/10/19 2:35 PM, Vincent Stehlé wrote: > On Thu, Apr 04, 2019 at 08:55:25AM +0200, Auger Eric wrote: >> Hi Marc, Robin, Alex, > (..) >> Do you think this is a reasonable assumption to consider devices within >> the same host iommu group share the same MSI doorbell? > > Hi Eric, >

Re: [PATCH v6 09/22] vfio: VFIO_IOMMU_BIND/UNBIND_MSI

2019-04-10 Thread Vincent Stehlé
On Thu, Apr 04, 2019 at 08:55:25AM +0200, Auger Eric wrote: > Hi Marc, Robin, Alex, (..) > Do you think this is a reasonable assumption to consider devices within > the same host iommu group share the same MSI doorbell? Hi Eric, I am not sure this assumption always hold. Marc, Robin and Alex can

Re: [PATCH v6 09/22] vfio: VFIO_IOMMU_BIND/UNBIND_MSI

2019-04-03 Thread Auger Eric
Hi Marc, Robin, Alex, On 4/3/19 7:38 PM, Alex Williamson wrote: > On Wed, 3 Apr 2019 16:30:15 +0200 > Auger Eric wrote: > >> Hi Alex, >> >> On 3/22/19 11:09 PM, Alex Williamson wrote: >>> On Fri, 22 Mar 2019 10:30:02 +0100 >>> Auger Eric wrote: >>> Hi Alex, On 3/22/19 12:01 AM, Ale

Re: [PATCH v6 09/22] vfio: VFIO_IOMMU_BIND/UNBIND_MSI

2019-04-03 Thread Alex Williamson
On Wed, 3 Apr 2019 16:30:15 +0200 Auger Eric wrote: > Hi Alex, > > On 3/22/19 11:09 PM, Alex Williamson wrote: > > On Fri, 22 Mar 2019 10:30:02 +0100 > > Auger Eric wrote: > > > >> Hi Alex, > >> On 3/22/19 12:01 AM, Alex Williamson wrote: > >>> On Sun, 17 Mar 2019 18:22:19 +0100 > >>> Eric

Re: [PATCH v6 09/22] vfio: VFIO_IOMMU_BIND/UNBIND_MSI

2019-04-03 Thread Auger Eric
Hi Alex, On 3/22/19 11:09 PM, Alex Williamson wrote: > On Fri, 22 Mar 2019 10:30:02 +0100 > Auger Eric wrote: > >> Hi Alex, >> On 3/22/19 12:01 AM, Alex Williamson wrote: >>> On Sun, 17 Mar 2019 18:22:19 +0100 >>> Eric Auger wrote: >>> This patch adds the VFIO_IOMMU_BIND/UNBIND_MSI ioct

Re: [PATCH v6 09/22] vfio: VFIO_IOMMU_BIND/UNBIND_MSI

2019-03-22 Thread Alex Williamson
On Fri, 22 Mar 2019 10:30:02 +0100 Auger Eric wrote: > Hi Alex, > On 3/22/19 12:01 AM, Alex Williamson wrote: > > On Sun, 17 Mar 2019 18:22:19 +0100 > > Eric Auger wrote: > > > >> This patch adds the VFIO_IOMMU_BIND/UNBIND_MSI ioctl which aim > >> to pass/withdraw the guest MSI binding to/fro

Re: [PATCH v6 09/22] vfio: VFIO_IOMMU_BIND/UNBIND_MSI

2019-03-22 Thread Auger Eric
Hi Alex, On 3/22/19 12:01 AM, Alex Williamson wrote: > On Sun, 17 Mar 2019 18:22:19 +0100 > Eric Auger wrote: > >> This patch adds the VFIO_IOMMU_BIND/UNBIND_MSI ioctl which aim >> to pass/withdraw the guest MSI binding to/from the host. >> >> Signed-off-by: Eric Auger >> >> --- >> v3 -> v4: >>

Re: [PATCH v6 09/22] vfio: VFIO_IOMMU_BIND/UNBIND_MSI

2019-03-21 Thread Alex Williamson
On Sun, 17 Mar 2019 18:22:19 +0100 Eric Auger wrote: > This patch adds the VFIO_IOMMU_BIND/UNBIND_MSI ioctl which aim > to pass/withdraw the guest MSI binding to/from the host. > > Signed-off-by: Eric Auger > > --- > v3 -> v4: > - add UNBIND > - unwind on BIND error > > v2 -> v3: > - adapt to

[PATCH v6 09/22] vfio: VFIO_IOMMU_BIND/UNBIND_MSI

2019-03-17 Thread Eric Auger
This patch adds the VFIO_IOMMU_BIND/UNBIND_MSI ioctl which aim to pass/withdraw the guest MSI binding to/from the host. Signed-off-by: Eric Auger --- v3 -> v4: - add UNBIND - unwind on BIND error v2 -> v3: - adapt to new proto of bind_guest_msi - directly use vfio_iommu_for_each_dev v1 -> v2: