Re: [PATCH v4 3/9] powerpc/vas: Add paste address mmap fault handler

2022-02-22 Thread Nicholas Piggin
Excerpts from Haren Myneni's message of February 20, 2022 5:55 am: > > The user space opens VAS windows and issues NX requests by pasting > CRB on the corresponding paste address mmap. When the system lost > credits due to core removal, the kernel has to close the window in > the hypervisor and ma

[PATCH v4 3/9] powerpc/vas: Add paste address mmap fault handler

2022-02-19 Thread Haren Myneni
The user space opens VAS windows and issues NX requests by pasting CRB on the corresponding paste address mmap. When the system lost credits due to core removal, the kernel has to close the window in the hypervisor and make the window inactive by unmapping this paste address. Also the OS has to h