Re: [RFC GIT PULL] x86 Page Table Isolation (PTI) syscall entry code preparatory patches

2017-12-17 Thread Ingo Molnar
* Ingo Molnar wrote: > > was supposed to be a synchronization point, but if you do > > > > git diff 9a818d1a3235..9a818d1a3235^ > > > > it isn't actually synchronized. It's *almost* synchronized, but not > > quite. How did those cherry-picks that were already upstream

Re: [RFC GIT PULL] x86 Page Table Isolation (PTI) syscall entry code preparatory patches

2017-12-17 Thread Ingo Molnar
* Ingo Molnar wrote: > > was supposed to be a synchronization point, but if you do > > > > git diff 9a818d1a3235..9a818d1a3235^ > > > > it isn't actually synchronized. It's *almost* synchronized, but not > > quite. How did those cherry-picks that were already upstream end up > > causing

Re: [RFC GIT PULL] x86 Page Table Isolation (PTI) syscall entry code preparatory patches

2017-12-16 Thread Ingo Molnar
* Linus Torvalds wrote: > On Fri, Dec 15, 2017 at 5:58 PM, Ingo Molnar wrote: > > > > These are the x86-64 low level entry code preparatory patches for the page > > table > > isolation patches - which are required for PTI, which addresses KASLR

Re: [RFC GIT PULL] x86 Page Table Isolation (PTI) syscall entry code preparatory patches

2017-12-16 Thread Ingo Molnar
* Linus Torvalds wrote: > On Fri, Dec 15, 2017 at 5:58 PM, Ingo Molnar wrote: > > > > These are the x86-64 low level entry code preparatory patches for the page > > table > > isolation patches - which are required for PTI, which addresses KASLR and > > similar > > information leaks. > >

Re: [RFC GIT PULL] x86 Page Table Isolation (PTI) syscall entry code preparatory patches

2017-12-16 Thread Linus Torvalds
On Fri, Dec 15, 2017 at 5:58 PM, Ingo Molnar wrote: > > These are the x86-64 low level entry code preparatory patches for the page > table > isolation patches - which are required for PTI, which addresses KASLR and > similar > information leaks. Ugh. Ok, I've read through

Re: [RFC GIT PULL] x86 Page Table Isolation (PTI) syscall entry code preparatory patches

2017-12-16 Thread Linus Torvalds
On Fri, Dec 15, 2017 at 5:58 PM, Ingo Molnar wrote: > > These are the x86-64 low level entry code preparatory patches for the page > table > isolation patches - which are required for PTI, which addresses KASLR and > similar > information leaks. Ugh. Ok, I've read through this, and while I