KVM: VMX: Allow KVM_INTEL when building for Centaur and/or Zhaoxin CPUs

Change the dependency for KVM_INTEL, i.e. KVM w/ VMX, from Intel CPUs to
any CPU that supports the IA32_FEAT_CTL MSR and thus VMX functionality.
This effectively allows building KVM_INTEL for Centaur and Zhaoxin CPUs.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20191221044513.21680-20-sean.j.christopherson@intel.com

diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
index 840e12583b85bac9dd46d0628833e43a12f073f0..991019d5eee1e03c21bd20a6e88ee209696304e0 100644 (file)
--- a/arch/x86/kvm/Kconfig
+++ b/arch/x86/kvm/Kconfig
@@ -60,13 +60,11 @@ config KVM
          If unsure, say N.
 
 config KVM_INTEL
-       tristate "KVM for Intel processors support"
-       depends on KVM
-       # for perf_guest_get_msrs():
-       depends on CPU_SUP_INTEL
+       tristate "KVM for Intel (and compatible) processors support"
+       depends on KVM && IA32_FEAT_CTL
        ---help---
-         Provides support for KVM on Intel processors equipped with the VT
-         extensions.
+         Provides support for KVM on processors equipped with Intel's VT
+         extensions, a.k.a. Virtual Machine Extensions (VMX).
 
          To compile this as a module, choose M here: the module
          will be called kvm-intel.