Re: [PATCH v6 01/12] IOMMU/x86: support freeing of pagetables

2022-07-05 Thread Jan Beulich
On 28.06.2022 14:39, Roger Pau Monné wrote: > On Thu, Jun 09, 2022 at 12:16:38PM +0200, Jan Beulich wrote: >> For vendor specific code to support superpages we need to be able to >> deal with a superpage mapping replacing an intermediate page table (or >> hierarchy thereof). Consequently an iommu_a

Re: [PATCH v6 01/12] IOMMU/x86: support freeing of pagetables

2022-06-28 Thread Roger Pau Monné
On Thu, Jun 09, 2022 at 12:16:38PM +0200, Jan Beulich wrote: > For vendor specific code to support superpages we need to be able to > deal with a superpage mapping replacing an intermediate page table (or > hierarchy thereof). Consequently an iommu_alloc_pgtable() counterpart is > needed to free in

[PATCH v6 01/12] IOMMU/x86: support freeing of pagetables

2022-06-09 Thread Jan Beulich
For vendor specific code to support superpages we need to be able to deal with a superpage mapping replacing an intermediate page table (or hierarchy thereof). Consequently an iommu_alloc_pgtable() counterpart is needed to free individual page tables while a domain is still alive. Since the freeing