Re: [PATCH 0/4] x86/xen: do some paravirt cleanup

2020-11-17 Thread Peter Zijlstra
On Mon, Nov 16, 2020 at 04:22:57PM +0100, Juergen Gross wrote: > Eliminate the usergs_sysret64 paravirt call completely and switch > the swapgs one to use ALTERNATIVE instead. This requires to fix the > IST based exception entries for Xen PV to use the same mechanism as > NMI and debug exception al

[PATCH 0/4] x86/xen: do some paravirt cleanup

2020-11-16 Thread Juergen Gross
Eliminate the usergs_sysret64 paravirt call completely and switch the swapgs one to use ALTERNATIVE instead. This requires to fix the IST based exception entries for Xen PV to use the same mechanism as NMI and debug exception already do. Juergen Gross (4): x86/xen: use specific Xen pv interrupt