Re: [PATCH v3 36/52] xen/mpu: implememt ioremap_xxx in MPU

2023-07-13 Thread Penny Zheng
Hi Ayan On 2023/7/5 22:01, Ayan Kumar Halder wrote: Hi Penny, On 26/06/2023 04:34, Penny Zheng wrote: CAUTION: This message has originated from an External Source. Please use proper judgment and caution when opening attachments, clicking links, or responding to this email. A set of functio

Re: [PATCH v3 36/52] xen/mpu: implememt ioremap_xxx in MPU

2023-07-05 Thread Ayan Kumar Halder
Hi Penny, On 26/06/2023 04:34, Penny Zheng wrote: CAUTION: This message has originated from an External Source. Please use proper judgment and caution when opening attachments, clicking links, or responding to this email. A set of function ioremap_xxx are designed to map deivce memory or rem

[PATCH v3 36/52] xen/mpu: implememt ioremap_xxx in MPU

2023-06-25 Thread Penny Zheng
A set of function ioremap_xxx are designed to map deivce memory or remap part of memory temporarily for short-time special purpose, like using ioremap_wc to temporarily remap guest kernel non-cacheable, for copying it to guest memory. As virtual translation is not supported in MPU, and we always f