Re: [Xen-devel] [PATCH v3 0/4] x86/iommu: PVH Dom0 workarounds for missing RMRR entries

2018-08-17 Thread Roger Pau Monné
On Thu, Aug 16, 2018 at 10:43:54AM -0600, Tamas K Lengyel wrote: > I double checked and the option is set properly but I'm still getting > the same non-present entry faults as before. At the moment I don't > have serial access so not sure how to verify that the option took > effect. This is my

Re: [Xen-devel] [PATCH v3 0/4] x86/iommu: PVH Dom0 workarounds for missing RMRR entries

2018-08-17 Thread Jan Beulich
>>> On 16.08.18 at 18:43, wrote: > Booting just linux with both options works just fine, I grepped the > dmesg log for the device that causes the issues with Xen but there are > no errors in the log: Well, this as well as ... > I double checked and the option is set properly but I'm still

Re: [Xen-devel] [PATCH v3 0/4] x86/iommu: PVH Dom0 workarounds for missing RMRR entries

2018-08-16 Thread Tamas K Lengyel
On Wed, Aug 15, 2018 at 12:40 AM Jan Beulich wrote: > > >>> On 15.08.18 at 03:00, wrote: > > On Wed, Aug 8, 2018 at 3:54 AM Jan Beulich wrote: > >> > >> >>> On 08.08.18 at 10:25, wrote: > >> > On Tue, Aug 07, 2018 at 10:45:32AM -0600, Tamas K Lengyel wrote: > >> >> On Tue, Aug 7, 2018 at 10:04

Re: [Xen-devel] [PATCH v3 0/4] x86/iommu: PVH Dom0 workarounds for missing RMRR entries

2018-08-15 Thread Jan Beulich
>>> On 15.08.18 at 03:00, wrote: > On Wed, Aug 8, 2018 at 3:54 AM Jan Beulich wrote: >> >> >>> On 08.08.18 at 10:25, wrote: >> > On Tue, Aug 07, 2018 at 10:45:32AM -0600, Tamas K Lengyel wrote: >> >> On Tue, Aug 7, 2018 at 10:04 AM Tamas K Lengyel >> >> wrote: >> >> (XEN) [VT-D]iommu.c:919:

Re: [Xen-devel] [PATCH v3 0/4] x86/iommu: PVH Dom0 workarounds for missing RMRR entries

2018-08-14 Thread Tamas K Lengyel
On Wed, Aug 8, 2018 at 3:54 AM Jan Beulich wrote: > > >>> On 08.08.18 at 10:25, wrote: > > On Tue, Aug 07, 2018 at 10:45:32AM -0600, Tamas K Lengyel wrote: > >> On Tue, Aug 7, 2018 at 10:04 AM Tamas K Lengyel > >> wrote: > >> (XEN) [VT-D]iommu.c:919: iommu_fault_status: Fault Overflow > >>

Re: [Xen-devel] [PATCH v3 0/4] x86/iommu: PVH Dom0 workarounds for missing RMRR entries

2018-08-08 Thread Jan Beulich
>>> On 08.08.18 at 10:25, wrote: > On Tue, Aug 07, 2018 at 10:45:32AM -0600, Tamas K Lengyel wrote: >> On Tue, Aug 7, 2018 at 10:04 AM Tamas K Lengyel >> wrote: >> (XEN) [VT-D]iommu.c:919: iommu_fault_status: Fault Overflow >> (XEN) [VT-D]iommu.c:921: iommu_fault_status: Primary Pending Fault >>

Re: [Xen-devel] [PATCH v3 0/4] x86/iommu: PVH Dom0 workarounds for missing RMRR entries

2018-08-08 Thread Roger Pau Monné
On Tue, Aug 07, 2018 at 10:45:32AM -0600, Tamas K Lengyel wrote: > On Tue, Aug 7, 2018 at 10:04 AM Tamas K Lengyel > wrote: > (XEN) [VT-D]iommu.c:919: iommu_fault_status: Fault Overflow > (XEN) [VT-D]iommu.c:921: iommu_fault_status: Primary Pending Fault > (XEN) [VT-D]DMAR:[DMA Read] Request

Re: [Xen-devel] [PATCH v3 0/4] x86/iommu: PVH Dom0 workarounds for missing RMRR entries

2018-08-07 Thread Tamas K Lengyel
On Tue, Aug 7, 2018 at 10:45 AM Tamas K Lengyel wrote: > > On Tue, Aug 7, 2018 at 10:04 AM Tamas K Lengyel > wrote: > > > > On Tue, Aug 7, 2018 at 9:09 AM Roger Pau Monné wrote: > > > > > > On Tue, Aug 07, 2018 at 08:45:07AM -0600, Tamas K Lengyel wrote: > > > > On Tue, Aug 7, 2018 at 8:37 AM

Re: [Xen-devel] [PATCH v3 0/4] x86/iommu: PVH Dom0 workarounds for missing RMRR entries

2018-08-07 Thread Tamas K Lengyel
On Tue, Aug 7, 2018 at 10:04 AM Tamas K Lengyel wrote: > > On Tue, Aug 7, 2018 at 9:09 AM Roger Pau Monné wrote: > > > > On Tue, Aug 07, 2018 at 08:45:07AM -0600, Tamas K Lengyel wrote: > > > On Tue, Aug 7, 2018 at 8:37 AM Roger Pau Monné > > > wrote: > > > > > > > > On Tue, Aug 07, 2018 at

Re: [Xen-devel] [PATCH v3 0/4] x86/iommu: PVH Dom0 workarounds for missing RMRR entries

2018-08-07 Thread Jan Beulich
>>> On 07.08.18 at 18:04, wrote: >> > > > (XEN) [VT-D]iommu.c:919: iommu_fault_status: Fault Overflow >> > > > (XEN) [VT-D]iommu.c:921: iommu_fault_status: Primary Pending Fault >> > > > (XEN) [VT-D]DMAR:[DMA Read] Request device [:00:02.0] fault addr >> > > > 4625f3a000, iommu reg =

Re: [Xen-devel] [PATCH v3 0/4] x86/iommu: PVH Dom0 workarounds for missing RMRR entries

2018-08-07 Thread Tamas K Lengyel
On Tue, Aug 7, 2018 at 9:09 AM Roger Pau Monné wrote: > > On Tue, Aug 07, 2018 at 08:45:07AM -0600, Tamas K Lengyel wrote: > > On Tue, Aug 7, 2018 at 8:37 AM Roger Pau Monné wrote: > > > > > > On Tue, Aug 07, 2018 at 08:29:49AM -0600, Tamas K Lengyel wrote: > > > > On Tue, Aug 7, 2018 at 8:04 AM

Re: [Xen-devel] [PATCH v3 0/4] x86/iommu: PVH Dom0 workarounds for missing RMRR entries

2018-08-07 Thread Andrew Cooper
On 07/08/18 15:45, Tamas K Lengyel wrote: > On Tue, Aug 7, 2018 at 8:37 AM Roger Pau Monné wrote: >> On Tue, Aug 07, 2018 at 08:29:49AM -0600, Tamas K Lengyel wrote: >>> On Tue, Aug 7, 2018 at 8:04 AM Roger Pau Monne wrote: Hello, The following series implement a workaround for

Re: [Xen-devel] [PATCH v3 0/4] x86/iommu: PVH Dom0 workarounds for missing RMRR entries

2018-08-07 Thread Roger Pau Monné
On Tue, Aug 07, 2018 at 08:45:07AM -0600, Tamas K Lengyel wrote: > On Tue, Aug 7, 2018 at 8:37 AM Roger Pau Monné wrote: > > > > On Tue, Aug 07, 2018 at 08:29:49AM -0600, Tamas K Lengyel wrote: > > > On Tue, Aug 7, 2018 at 8:04 AM Roger Pau Monne > > > wrote: > > > > > > > > Hello, > > > > > >

Re: [Xen-devel] [PATCH v3 0/4] x86/iommu: PVH Dom0 workarounds for missing RMRR entries

2018-08-07 Thread Tamas K Lengyel
On Tue, Aug 7, 2018 at 8:37 AM Roger Pau Monné wrote: > > On Tue, Aug 07, 2018 at 08:29:49AM -0600, Tamas K Lengyel wrote: > > On Tue, Aug 7, 2018 at 8:04 AM Roger Pau Monne wrote: > > > > > > Hello, > > > > > > The following series implement a workaround for missing RMRR > > > entries for a PVH

Re: [Xen-devel] [PATCH v3 0/4] x86/iommu: PVH Dom0 workarounds for missing RMRR entries

2018-08-07 Thread Roger Pau Monné
On Tue, Aug 07, 2018 at 08:29:49AM -0600, Tamas K Lengyel wrote: > On Tue, Aug 7, 2018 at 8:04 AM Roger Pau Monne wrote: > > > > Hello, > > > > The following series implement a workaround for missing RMRR > > entries for a PVH Dom0. It's based on the iommu_inclusive_mapping VTd > > option. > > >

Re: [Xen-devel] [PATCH v3 0/4] x86/iommu: PVH Dom0 workarounds for missing RMRR entries

2018-08-07 Thread Tamas K Lengyel
On Tue, Aug 7, 2018 at 8:04 AM Roger Pau Monne wrote: > > Hello, > > The following series implement a workaround for missing RMRR > entries for a PVH Dom0. It's based on the iommu_inclusive_mapping VTd > option. > > The PVH workaround identity maps all regions marked as reserved in the > memory

[Xen-devel] [PATCH v3 0/4] x86/iommu: PVH Dom0 workarounds for missing RMRR entries

2018-08-07 Thread Roger Pau Monne
Hello, The following series implement a workaround for missing RMRR entries for a PVH Dom0. It's based on the iommu_inclusive_mapping VTd option. The PVH workaround identity maps all regions marked as reserved in the memory map. Note that this workaround is enabled by default on Intel hardware.