Re: [PATCH v2 30/40] xen/mpu: disable VMAP sub-system for MPU systems

2023-01-13 Thread Jan Beulich
On 13.01.2023 06:29, Penny Zheng wrote: > VMAP in MMU system, is used to remap a range of normal memory > or device memory to another virtual address with new attributes > for specific purpose, like ALTERNATIVE feature. Since there is > no virtual address translation support in MPU system, we can

[PATCH v2 30/40] xen/mpu: disable VMAP sub-system for MPU systems

2023-01-12 Thread Penny Zheng
VMAP in MMU system, is used to remap a range of normal memory or device memory to another virtual address with new attributes for specific purpose, like ALTERNATIVE feature. Since there is no virtual address translation support in MPU system, we can not support VMAP in MPU system. So in this