On Tue, Jun 28, 2022 at 01:23:52PM +0530, Vasant Hegde wrote:
> I think it will complicate the parsing logic. We do have `amd_iommu=off`
> option.
> How are we going to handle `amd_iommu=off,[pgtable_v1/v2]` ?
In that case everything except 'off' will be ignored. The driver might
set its interna
Hi Joerg,
On 6/23/2022 1:42 PM, Joerg Roedel wrote:
> On Fri, Jun 03, 2022 at 04:51:07PM +0530, Vasant Hegde wrote:
>> +amd_iommu_pgtable= [HW,X86-64]
>> +Specifies one of the following AMD IOMMU page table to
>> +be used for DMA remapping for DMA-API:
On Fri, Jun 03, 2022 at 04:51:07PM +0530, Vasant Hegde wrote:
> + amd_iommu_pgtable= [HW,X86-64]
> + Specifies one of the following AMD IOMMU page table to
> + be used for DMA remapping for DMA-API:
> + v1 - Use v1 page table (
From: Suravee Suthikulpanit
To allow specification whether to use v1 or v2 IOMMU pagetable for
DMA remapping when calling kernel DMA-API.
Co-developed-by: Vasant Hegde
Signed-off-by: Vasant Hegde
Signed-off-by: Suravee Suthikulpanit
---
Documentation/admin-guide/kernel-parameters.txt | 6 ++
