[PATCH v5 0/2] kvm/arm64: Try stage2 block mapping for host device MMIO

[Keqian Zhu]

Hi Marc,

Kindly remind. :)

BRs,
Keqian

On 2021/5/7 19:03, Keqian Zhu wrote:
> Hi Marc,
> 
> This rebases to newest mainline kernel.
> 
> Thanks,
> Keqian
> 
> 
> We have two pathes to build stage2 mapping for MMIO regions.
> 
> Create time's path and stage2 fault path.
> 
> Patch#1 removes the creation time's mapping of MMIO regions
> Patch#2 tries stage2 block mapping for host device MMIO at fault path
> 
> Changelog:
> 
> v5:
>  - Rebase to newest mainline.
> 
> v4:
>  - use get_vma_page_shift() handle all cases. (Marc)
>  - get rid of force_pte for device mapping. (Marc)
> 
> v3:
>  - Do not need to check memslot boundary in device_rough_page_shift(). (Marc)
> 
> 
> Keqian Zhu (2):
>   kvm/arm64: Remove the creation time's mapping of MMIO regions
>   kvm/arm64: Try stage2 block mapping for host device MMIO
> 
>  arch/arm64/kvm/mmu.c | 99 ++++++++++++++++++++++++--------------------
>  1 file changed, 54 insertions(+), 45 deletions(-)
>