On Thu, Jan 04, 2018 at 12:54:50AM -0500, Russell via talk wrote:
For a problem like this one and given it's scope and complexity, it is premature to downplay the core and it's overhead issue. This is not like in the movies where the producer says, it's not a problem, we can fix it in POST. This is a preproduction issue with the actors.
If you want to get all biological about pathology. The pathology of this problem is far from well understood. Finding the proper namespace is important.
At Linus's request KAISER has been dropped. However fuckwit (Forcefully Unmap Complete Kernel With Interrupt Trampolines, ) has not been adopted, by most people anyway.
Well code I see committed in the kernel uses pti_ for the functions, so seems they settled on page table isolation. It was previously suggesting kpti for kernel page table isolation but I guess the kernel bit was deemed redundant. -- Len Sorensen