Re: [Xen-devel] S3 crash with VTD Queue Invalidation enabled

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 05.06.13 at 17:25, Ben Guthro <ben@xxxxxxxxxx> wrote:
> On Wed, Jun 5, 2013 at 11:14 AM, Jan Beulich <JBeulich@xxxxxxxx> wrote:
>> Depending on whether ATS is in use, more than one invalidation
>> can be done in the processing here - could you therefore check
>> whether there's any sign of ATS use ("iommu=verbose" should
>> make you see respective messages), and if so see whether
>> disabling it ("ats=off") makes a difference?
> 
> ATS does not appear to be running:
> 
> (XEN) [VT-D]dmar.c:737: Host address width 36
> (XEN) [VT-D]dmar.c:751: found ACPI_DMAR_DRHD:
> (XEN) [VT-D]dmar.c:412:   dmaru->address = fed90000
> (XEN) [VT-D]iommu.c:1197: drhd->address = fed90000 iommu->reg = 
> ffff82c3ffd57000
> (XEN) [VT-D]iommu.c:1199: cap = c0000020e60262 ecap = f0101a
> (XEN) [VT-D]dmar.c:338:  endpoint: 0000:00:02.0
> (XEN) [VT-D]dmar.c:751: found ACPI_DMAR_DRHD:
> (XEN) [VT-D]dmar.c:412:   dmaru->address = fed91000
> (XEN) [VT-D]iommu.c:1197: drhd->address = fed91000 iommu->reg = 
> ffff82c3ffd56000
> (XEN) [VT-D]iommu.c:1199: cap = c9008020660262 ecap = f0105a
> (XEN) [VT-D]dmar.c:354:  IOAPIC: 0000:f0:1f.0
> (XEN) [VT-D]dmar.c:332:  MSI HPET: 0000:00:0f.0
> (XEN) [VT-D]dmar.c:332:  MSI HPET: 0000:00:0f.1
> (XEN) [VT-D]dmar.c:332:  MSI HPET: 0000:00:0f.2
> (XEN) [VT-D]dmar.c:332:  MSI HPET: 0000:00:0f.3
> (XEN) [VT-D]dmar.c:332:  MSI HPET: 0000:00:0f.4
> (XEN) [VT-D]dmar.c:332:  MSI HPET: 0000:00:0f.5
> (XEN) [VT-D]dmar.c:332:  MSI HPET: 0000:00:0f.6
> (XEN) [VT-D]dmar.c:332:  MSI HPET: 0000:00:0f.7
> (XEN) [VT-D]dmar.c:426:   flags: INCLUDE_ALL
> (XEN) [VT-D]dmar.c:756: found ACPI_DMAR_RMRR:
> (XEN) [VT-D]dmar.c:338:  endpoint: 0000:00:1d.0
> (XEN) [VT-D]dmar.c:338:  endpoint: 0000:00:1a.0
> (XEN) [VT-D]dmar.c:625:   RMRR region: base_addr ba8d5000 end_address 
> ba8ebfff
> (XEN) [VT-D]dmar.c:756: found ACPI_DMAR_RMRR:
> (XEN) [VT-D]dmar.c:338:  endpoint: 0000:00:02.0
> (XEN) [VT-D]dmar.c:625:   RMRR region: base_addr bb800000 end_address 
> bf9fffff
> 
> I would expect a line with "found ACPI_DMAR_ATSR" to be printed, if it
> was found.

Right. So one less variable.

Jan


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