Re: [Xen-devel] [PATCH v3 4/7] xen/x86: use invpcid for flushing the TLB

On 22/03/18 16:35, Jan Beulich wrote: On 21.03.18 at 13:51, wrote: >> --- a/docs/misc/xen-command-line.markdown >> +++ b/docs/misc/xen-command-line.markdown >> @@ -1380,6 +1380,14 @@ Because responsibility for APIC setup is shared >> between Xen and the >> domain 0 kernel

Re: [Xen-devel] [PATCH v3 4/7] xen/x86: use invpcid for flushing the TLB

>>> On 21.03.18 at 13:51, wrote: > --- a/docs/misc/xen-command-line.markdown > +++ b/docs/misc/xen-command-line.markdown > @@ -1380,6 +1380,14 @@ Because responsibility for APIC setup is shared > between Xen and the > domain 0 kernel this option is automatically propagated to

[Xen-devel] [PATCH v3 4/7] xen/x86: use invpcid for flushing the TLB

If possible use the INVPCID instruction for flushing the TLB instead of toggling cr4.pge for that purpose. While at it remove the dependency on cr4.pge being required for mtrr loading, as this will be required later anyway. Add a command line option "noinvpcid" for deactivating the use of