Re: [Xen-devel] [PATCH v2 0/6] xen/x86: various XPTI speedups

2018-03-05 Thread Dario Faggioli
On Fri, 2018-03-02 at 09:13 +0100, Juergen Gross wrote: > The complete series has been verified to still mitigate against > Meltdown attacks. A simple performance test (make -j 4 in the Xen > hypervisor directory) showed significant improvements compared to the > state without this series (so with

[Xen-devel] [PATCH v2 0/6] xen/x86: various XPTI speedups

2018-03-02 Thread Juergen Gross
This patch series aims at reducing the overhead of the XPTI Meltdown mitigation. It is based on Jan's XPTI speedup series and Wei's series for support of PCID and INVPCID. Patch 1 had been posted before, the main changes in this patch are due to addressing Jan's comments on my first version. The m