Re: [PATCH v4 7/9] powerpc/pseries/vas: Reopen windows with DLPAR core add

2022-02-23 Thread Haren Myneni
On Wed, 2022-02-23 at 17:28 +1000, Nicholas Piggin wrote: > Excerpts from Haren Myneni's message of February 20, 2022 6:01 am: > > VAS windows can be closed in the hypervisor due to lost credits > > when the core is removed and the kernel gets fault for NX > > requests on these in-active windows. I

Re: [PATCH v4 7/9] powerpc/pseries/vas: Reopen windows with DLPAR core add

2022-02-22 Thread Nicholas Piggin
Excerpts from Haren Myneni's message of February 20, 2022 6:01 am: > > VAS windows can be closed in the hypervisor due to lost credits > when the core is removed and the kernel gets fault for NX > requests on these in-active windows. If these credits are > available later for core add, reopen thes

[PATCH v4 7/9] powerpc/pseries/vas: Reopen windows with DLPAR core add

2022-02-19 Thread Haren Myneni
VAS windows can be closed in the hypervisor due to lost credits when the core is removed and the kernel gets fault for NX requests on these in-active windows. If these credits are available later for core add, reopen these windows and set them active. When the OS sees page faults on these active