Re: [PATCH v2] iommu/vt-d: Check VT-d RMRR region in BIOS is reported as reserved

2019-11-11 Thread Joerg Roedel
On Thu, Oct 17, 2019 at 04:39:19AM -0700, Yian Chen wrote: > VT-d RMRR (Reserved Memory Region Reporting) regions are reserved > for device use only and should not be part of allocable memory pool of OS. > > BIOS e820_table reports complete memory map to OS, including OS usable > memory ranges and

Re: [PATCH v2] iommu/vt-d: Check VT-d RMRR region in BIOS is reported as reserved

2019-11-06 Thread Chen, Yian
Hi Joerg, Do you have any further comment on this patch? Thanks Yian On 10/17/2019 4:39 AM, Yian Chen wrote: VT-d RMRR (Reserved Memory Region Reporting) regions are reserved for device use only and should not be part of allocable memory pool of OS. BIOS e820_table reports complete memory ma

[PATCH v2] iommu/vt-d: Check VT-d RMRR region in BIOS is reported as reserved

2019-10-17 Thread Yian Chen
VT-d RMRR (Reserved Memory Region Reporting) regions are reserved for device use only and should not be part of allocable memory pool of OS. BIOS e820_table reports complete memory map to OS, including OS usable memory ranges and BIOS reserved memory ranges etc. x86 BIOS may not be trusted to inc