Re: [PATCH v4 5/9] powerpc/vas: Map paste address only if window is active

2022-02-23 Thread Haren Myneni
On Wed, 2022-02-23 at 17:11 +1000, Nicholas Piggin wrote: > Excerpts from Haren Myneni's message of February 20, 2022 5:59 am: > > The paste address mapping is done with mmap() after the window is > > opened with ioctl. If the window is closed by OS in the hypervisor > > due to DLPAR after this mma

Re: [PATCH v4 5/9] powerpc/vas: Map paste address only if window is active

2022-02-22 Thread Nicholas Piggin
Excerpts from Haren Myneni's message of February 20, 2022 5:59 am: > > The paste address mapping is done with mmap() after the window is > opened with ioctl. If the window is closed by OS in the hypervisor > due to DLPAR after this mmap(), the paste instruction returns I don't think the changelog

[PATCH v4 5/9] powerpc/vas: Map paste address only if window is active

2022-02-19 Thread Haren Myneni
The paste address mapping is done with mmap() after the window is opened with ioctl. If the window is closed by OS in the hypervisor due to DLPAR after this mmap(), the paste instruction returns failure until the OS reopens this window again. But before mmap(), DLPAR core removal can happen which