linux-kernel - [PATCH 46/54] KVM: x86/mmu: Use MMU's role to determine PTTYPE

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Date:   Tue, 22 Jun 2021 10:57:31 -0700
From:   Sean Christopherson <seanjc@...gle.com>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     Sean Christopherson <seanjc@...gle.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Jim Mattson <jmattson@...gle.com>,
        Joerg Roedel <joro@...tes.org>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Yu Zhang <yu.c.zhang@...ux.intel.com>,
        Maxim Levitsky <mlevitsk@...hat.com>
Subject: [PATCH 46/54] KVM: x86/mmu: Use MMU's role to determine PTTYPE

Use the MMU's role instead of vCPU state or role_regs to determine the
PTTYPE, i.e. which helpers to wire up.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@...gle.com>
---
 arch/x86/kvm/mmu/mmu.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 4e11cb284006..92260cf48d5e 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -4637,9 +4637,9 @@ static void init_kvm_tdp_mmu(struct kvm_vcpu *vcpu)
 	context->inject_page_fault = kvm_inject_page_fault;
 	context->root_level = role_regs_to_root_level(&regs);
 
-	if (!is_paging(vcpu))
+	if (!is_cr0_pg(context))
 		context->gva_to_gpa = nonpaging_gva_to_gpa;
-	else if (is_pae(vcpu))
+	else if (is_cr4_pae(context))
 		context->gva_to_gpa = paging64_gva_to_gpa;
 	else
 		context->gva_to_gpa = paging32_gva_to_gpa;
@@ -4689,9 +4689,9 @@ static void shadow_mmu_init_context(struct kvm_vcpu *vcpu, struct kvm_mmu *conte
 
 	context->mmu_role.as_u64 = new_role.as_u64;
 
-	if (!____is_cr0_pg(regs))
+	if (!is_cr0_pg(context))
 		nonpaging_init_context(context);
-	else if (____is_cr4_pae(regs))
+	else if (is_cr4_pae(context))
 		paging64_init_context(context);
 	else
 		paging32_init_context(context);
-- 
2.32.0.288.g62a8d224e6-goog