Re: [Xen-devel] [PATCH v4 7/8] x86: also NOP out xen_cr3 restores of XPTI

2018-03-22 Thread Wei Liu
On Mon, Mar 19, 2018 at 07:41:11AM -0600, Jan Beulich wrote: > ... despite quite likely the gain being rather limited. > > Signed-off-by: Jan Beulich Reviewed-by: Wei Liu ___ Xen-devel mailing list

Re: [Xen-devel] [PATCH v4 7/8] x86: also NOP out xen_cr3 restores of XPTI

2018-03-21 Thread Juergen Gross
On 19/03/18 14:41, Jan Beulich wrote: > ... despite quite likely the gain being rather limited. > > Signed-off-by: Jan Beulich Tested-by: Juergen Gross Reviewed-by: Juergen Gross Juergen ___

[Xen-devel] [PATCH v4 7/8] x86: also NOP out xen_cr3 restores of XPTI

2018-03-19 Thread Jan Beulich
... despite quite likely the gain being rather limited. Signed-off-by: Jan Beulich --- v4: Split off from earlier patch. --- a/xen/arch/x86/x86_64/entry.S +++ b/xen/arch/x86/x86_64/entry.S @@ -583,7 +583,8 @@ ENTRY(common_interrupt) CR4_PV32_RESTORE movq