RE: [PATCH v2 16/40] xen/arm: introduce setup_mm_mappings

2023-02-06 Thread Penny Zheng
Hi Julien > -Original Message- > From: Julien Grall > Sent: Monday, February 6, 2023 5:32 AM > To: Penny Zheng ; xen-devel@lists.xenproject.org > Cc: Wei Chen ; Stefano Stabellini > ; Bertrand Marquis ; > Volodymyr Babchuk > Subject: Re: [PATCH v2 1

Re: [PATCH v2 16/40] xen/arm: introduce setup_mm_mappings

2023-02-05 Thread Julien Grall
Hi, On 13/01/2023 05:28, Penny Zheng wrote: Function setup_pagetables is responsible for boot-time pagetable setup in MMU system. But in MPU system, we have already built up start-of-day Xen MPU memory region mapping at the very beginning in assembly. So in order to keep only one codeflow in ar