KVM: x86: Drop now-redundant MAXPHYADDR and GPA rsvd bits from vCPU creation

Drop the manual initialization of maxphyaddr and reserved_gpa_bits during
vCPU creation now that kvm_arch_vcpu_create() unconditionally invokes
kvm_vcpu_after_set_cpuid(), which handles all such CPUID caching.

None of the helpers between the existing code in kvm_arch_vcpu_create()
and the call to kvm_vcpu_after_set_cpuid() consume maxphyaddr or
reserved_gpa_bits (though auditing vmx_vcpu_create() and svm_vcpu_create()
isn't exactly easy).

Link: https://lore.kernel.org/r/20241128013424.4096668-13-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index a82f3db4da1b39cacd1e701bbbf93cc74cc34037..503bfcbc1735a2a026349273595d5efa5ac0040d 100644 (file)
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -12258,9 +12258,6 @@ int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu)
                goto free_emulate_ctxt;
        }
 
-       vcpu->arch.maxphyaddr = cpuid_query_maxphyaddr(vcpu);
-       vcpu->arch.reserved_gpa_bits = kvm_vcpu_reserved_gpa_bits_raw(vcpu);
-
        kvm_async_pf_hash_reset(vcpu);
 
        if (kvm_check_has_quirk(vcpu->kvm, KVM_X86_QUIRK_STUFF_FEATURE_MSRS)) {