On 20/07/18 10:58, Olaf Hering wrote:
> Am Fri, 20 Jul 2018 10:38:30 +0100
> schrieb Andrew Cooper :
>
>> On 20/07/18 10:21, Olaf Hering wrote:
>>> Is the loss of cpuflags intentional?
>> Yes, but they've got nothing to do with Spectre.
> Thank you, Andrew. After a few more reboots I figured
Am Fri, 20 Jul 2018 10:38:30 +0100
schrieb Andrew Cooper :
> On 20/07/18 10:21, Olaf Hering wrote:
> > Is the loss of cpuflags intentional?
> Yes, but they've got nothing to do with Spectre.
Thank you, Andrew. After a few more reboots I figured that booting without any
cmdline option makes no
On 20/07/18 10:21, Olaf Hering wrote:
> On a host that is booted with the following command line, certain cpu flags
> disappear in xen-4.9 and later:
>
> (XEN) Command line: loglvl=all guest_loglvl=all console=com1 com1=57600
> cpuid=ibrsb,stibp,ibpb,ssbd
On a host that is booted with the following command line, certain cpu flags
disappear in xen-4.9 and later:
(XEN) Command line: loglvl=all guest_loglvl=all console=com1 com1=57600
cpuid=ibrsb,stibp,ibpb,ssbd spec-ctrl=ibrs,ibpb,ssbd,bti-thunk=retpoline
xpti=yes
On my test system the
