Re: [Xen-devel] [PATCH 1/5] x86/cpuidle: switch to uniform meaning of "max_cstate="

2019-06-11 Thread Jan Beulich
>>> On 10.06.19 at 17:48, wrote: > On 23/05/2019 13:16, Jan Beulich wrote: >> While the MWAIT idle driver already takes it to mean an actual C state, >> the ACPI idle driver so far used it as a list index. The list index, >> however, is an implementation detail of Xen and affected by firmware >> s

Re: [Xen-devel] [PATCH 1/5] x86/cpuidle: switch to uniform meaning of "max_cstate="

2019-06-10 Thread Andrew Cooper
On 23/05/2019 13:16, Jan Beulich wrote: > While the MWAIT idle driver already takes it to mean an actual C state, > the ACPI idle driver so far used it as a list index. The list index, > however, is an implementation detail of Xen and affected by firmware > settings (i.e. not necessarily uniform fo

[Xen-devel] [PATCH 1/5] x86/cpuidle: switch to uniform meaning of "max_cstate="

2019-05-23 Thread Jan Beulich
While the MWAIT idle driver already takes it to mean an actual C state, the ACPI idle driver so far used it as a list index. The list index, however, is an implementation detail of Xen and affected by firmware settings (i.e. not necessarily uniform for a particular system). While touching this cod