[RFC PATCH 10/11] iommupt: Add RISC-V dirty tracking PTE ops

[fangyu.yu at linux.alibaba.com]

>> From: Fangyu Yu <fangyu.yu at linux.alibaba.com>
>> 
>> Implement the three dirty-tracking hooks required by the generic page
>> table framework for the RISC-V format:
>> 
>>   pt_entry_is_write_dirty():
>>     Check the D bit (bit 7) in the PTE.
>> 
>>   pt_entry_make_write_clean():
>>     Clear the D bit across the full contiguous range.
>> 
>>   pt_entry_make_write_dirty():
>>     Atomically set D via try_cmpxchg64() on a single PTE.
>> 
>> Signed-off-by: Fangyu Yu <fangyu.yu at linux.alibaba.com>
>> ---
>>  drivers/iommu/generic_pt/fmt/riscv.h | 43 ++++++++++++++++++++++++++++
>>  1 file changed, 43 insertions(+)
>
>This patch should probably go earlier in your series, before adding
>the alloc_paging flags at least.
>

Agreed. I will reorder the series and place this patch earlier.

Thanks,
Fangyu

>Jason