> On Sep 24, 2019, at 11:09 AM, Jim Mattson <jmattson@xxxxxxxxxx> wrote: > > On Tue, Sep 24, 2019 at 10:29 AM Nadav Amit <nadav.amit@xxxxxxxxx> wrote: >>> On Sep 20, 2019, at 12:44 PM, Jim Mattson <jmattson@xxxxxxxxxx> wrote: >>> >>> On Fri, Sep 20, 2019 at 12:36 PM Krish Sadhukhan >>> <krish.sadhukhan@xxxxxxxxxx> wrote: >>>> On 9/19/19 4:02 PM, Jim Mattson wrote: >>>>> Ensure that support for RDPRU is not enumerated in the guest's CPUID >>>>> and that the RDPRU instruction raises #UD. >>>> >>>> >>>> The AMD spec says, >>>> >>>> "When the CPL>0 with CR4.TSD=1, the RDPRUinstruction will >>>> generate a #UD fault." >>>> >>>> So we don't need to check the CR4.TSD value here ? >>> >>> KVM should set CPUID Fn8000_0008_EBX[RDPRU] to 0. >>> >>> However, I should modify the test so it passes (or skips) on hardware. :-) >> >> Thanks for making this exception. Just wondering: have you or anyone else >> used this functionality - of running tests on bare-metal? > > I have not. However, if there is a simple way to add this testing to > our workflow, I would be happy to ask the team to do so before sending > submissions upstream. I guess I should build some script that uses idrac to automate this process.
