Re: [Xen-devel] [PATCH v11 3/3] iommu: add rmrr Xen command line option for extra rmrrs

2015-10-27 Thread Elena Ufimtseva
On Mon, Oct 26, 2015 at 07:38:06AM -0600, Jan Beulich wrote: > >>> On 22.10.15 at 19:13, wrote: > > From: Elena Ufimtseva > > > > On some platforms RMRR regions may be not specified in ACPI and thus will > > not > > be mapped 1:1 in dom0.

Re: [Xen-devel] [PATCH v11 3/3] iommu: add rmrr Xen command line option for extra rmrrs

2015-10-26 Thread Jan Beulich
>>> On 22.10.15 at 19:13, wrote: > From: Elena Ufimtseva > > On some platforms RMRR regions may be not specified in ACPI and thus will not > be mapped 1:1 in dom0. I think this may be misleading to readers: It sounds as if there was the

[Xen-devel] [PATCH v11 3/3] iommu: add rmrr Xen command line option for extra rmrrs

2015-10-22 Thread elena . ufimtseva
From: Elena Ufimtseva On some platforms RMRR regions may be not specified in ACPI and thus will not be mapped 1:1 in dom0. This causes IO Page Faults and prevents dom0 from booting in PVH mode. New Xen command line option rmrr allows to specify such devices and memory