| From | Thomas Gleixner <> | Subject | Re: [RFC PATCH v3 23/59] KVM: x86: Allow host-initiated WRMSR to set X2APIC regardless of CPUID | Date | Thu, 25 Nov 2021 20:41:48 +0100 |
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On Wed, Nov 24 2021 at 16:20, isaku yamahata wrote: > Let userspace, or in the case of TDX, KVM itself, enable X2APIC even if > X2APIC is not reported as supported in the guest's CPU model. KVM > generally does not force specific ordering between ioctls(), e.g. this > forces userspace to configure CPUID before MSRs. And for TDX, vCPUs > will always run with X2APIC enabled, e.g. KVM will want/need to enable > X2APIC from time zero.
This is complete crap. Fix the broken user space and do not add horrible hacks to the kernel.
Thanks,
tglx
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