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KVM: selftests: x86: Cache host CPU vendor (AMD vs. Intel)
Cache the host CPU vendor for userspace and share it with guest code. All the current callers of this_cpu* actually care about host cpu so they are updated to check host_cpu_is*. Suggested-by: Sean Christopherson <seanjc@google.com> Reviewed-by: David Matlack <dmatlack@google.com> Signed-off-by: Vishal Annapurve <vannapurve@google.com> Link: https://lore.kernel.org/r/20230111004445.416840-3-vannapurve@google.com Signed-off-by: Sean Christopherson <seanjc@google.com>
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