On 07.02.2024 10:14, Roger Pau Monné wrote:
> On Tue, Feb 06, 2024 at 12:49:08PM +0100, Jan Beulich wrote:
>> On 01.02.2024 18:01, Roger Pau Monne wrote:
>>> Currently when a unity range overlaps with memory being used as RAM by the
>>> hypervisor the result would be that the IOMMU gets disabled.
On Tue, Feb 06, 2024 at 12:49:08PM +0100, Jan Beulich wrote:
> On 01.02.2024 18:01, Roger Pau Monne wrote:
> > Currently when a unity range overlaps with memory being used as RAM by the
> > hypervisor the result would be that the IOMMU gets disabled. However that's
> > not enough, as even with
On 01.02.2024 18:01, Roger Pau Monne wrote:
> Currently when a unity range overlaps with memory being used as RAM by the
> hypervisor the result would be that the IOMMU gets disabled. However that's
> not enough, as even with the IOMMU disabled the device will still access the
> affected RAM
Currently when a unity range overlaps with memory being used as RAM by the
hypervisor the result would be that the IOMMU gets disabled. However that's
not enough, as even with the IOMMU disabled the device will still access the
affected RAM areas.
Note that IVMD or RMRR ranges being placed over
