[PATCH v2 07/25] KVM: x86/mmu: remove "bool base_only" arguments

From: Paolo Bonzini <pbonzini@redhat.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: dmatlack@google.com, seanjc@google.com
Subject: [PATCH v2 07/25] KVM: x86/mmu: remove "bool base_only" arguments
Date: Mon, 21 Feb 2022 11:22:25 -0500	[thread overview]
Message-ID: <20220221162243.683208-8-pbonzini@redhat.com> (raw)
In-Reply-To: <20220221162243.683208-1-pbonzini@redhat.com>

The argument is always false now that kvm_mmu_calc_root_page_role has
been removed.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/mmu/mmu.c | 66 +++++++++++++++---------------------------
 1 file changed, 23 insertions(+), 43 deletions(-)

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index f3494dcc4e2f..7c835253a330 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -4680,47 +4680,30 @@ static void paging32_init_context(struct kvm_mmu *context)
 	context->direct_map = false;
 }
 
-static union kvm_mmu_extended_role kvm_calc_mmu_role_ext(struct kvm_vcpu *vcpu,
-							 const struct kvm_mmu_role_regs *regs)
-{
-	union kvm_mmu_extended_role ext = {0};
-
-	if (____is_cr0_pg(regs)) {
-		ext.cr0_pg = 1;
-		ext.cr4_pae = ____is_cr4_pae(regs);
-		ext.cr4_smep = ____is_cr4_smep(regs);
-		ext.cr4_smap = ____is_cr4_smap(regs);
-		ext.cr4_pse = ____is_cr4_pse(regs);
-
-		/* PKEY and LA57 are active iff long mode is active. */
-		ext.cr4_pke = ____is_efer_lma(regs) && ____is_cr4_pke(regs);
-		ext.cr4_la57 = ____is_efer_lma(regs) && ____is_cr4_la57(regs);
-		ext.efer_lma = ____is_efer_lma(regs);
-	}
-
-	ext.valid = 1;
-
-	return ext;
-}
-
 static union kvm_mmu_role kvm_calc_mmu_role_common(struct kvm_vcpu *vcpu,
-						   const struct kvm_mmu_role_regs *regs,
-						   bool base_only)
+						   const struct kvm_mmu_role_regs *regs)
 {
 	union kvm_mmu_role role = {0};
 
 	role.base.access = ACC_ALL;
 	if (____is_cr0_pg(regs)) {
+		role.ext.cr0_pg = 1;
 		role.base.efer_nx = ____is_efer_nx(regs);
 		role.base.cr0_wp = ____is_cr0_wp(regs);
+
+		role.ext.cr4_pae = ____is_cr4_pae(regs);
+		role.ext.cr4_smep = ____is_cr4_smep(regs);
+		role.ext.cr4_smap = ____is_cr4_smap(regs);
+		role.ext.cr4_pse = ____is_cr4_pse(regs);
+
+		/* PKEY and LA57 are active iff long mode is active. */
+		role.ext.cr4_pke = ____is_efer_lma(regs) && ____is_cr4_pke(regs);
+		role.ext.cr4_la57 = ____is_efer_lma(regs) && ____is_cr4_la57(regs);
+		role.ext.efer_lma = ____is_efer_lma(regs);
 	}
 	role.base.smm = is_smm(vcpu);
 	role.base.guest_mode = is_guest_mode(vcpu);
-
-	if (base_only)
-		return role;
-
-	role.ext = kvm_calc_mmu_role_ext(vcpu, regs);
+	role.ext.valid = 1;
 
 	return role;
 }
@@ -4740,10 +4723,9 @@ static inline int kvm_mmu_get_tdp_level(struct kvm_vcpu *vcpu)
 
 static union kvm_mmu_role
 kvm_calc_tdp_mmu_root_page_role(struct kvm_vcpu *vcpu,
-				const struct kvm_mmu_role_regs *regs,
-				bool base_only)
+				const struct kvm_mmu_role_regs *regs)
 {
-	union kvm_mmu_role role = kvm_calc_mmu_role_common(vcpu, regs, base_only);
+	union kvm_mmu_role role = kvm_calc_mmu_role_common(vcpu, regs);
 
 	role.base.ad_disabled = (shadow_accessed_mask == 0);
 	role.base.level = kvm_mmu_get_tdp_level(vcpu);
@@ -4758,7 +4740,7 @@ static void init_kvm_tdp_mmu(struct kvm_vcpu *vcpu,
 {
 	struct kvm_mmu *context = &vcpu->arch.root_mmu;
 	union kvm_mmu_role new_role =
-		kvm_calc_tdp_mmu_root_page_role(vcpu, regs, false);
+		kvm_calc_tdp_mmu_root_page_role(vcpu, regs);
 
 	if (new_role.as_u64 == context->mmu_role.as_u64)
 		return;
@@ -4787,10 +4769,9 @@ static void init_kvm_tdp_mmu(struct kvm_vcpu *vcpu,
 
 static union kvm_mmu_role
 kvm_calc_shadow_root_page_role_common(struct kvm_vcpu *vcpu,
-				      const struct kvm_mmu_role_regs *regs,
-				      bool base_only)
+				      const struct kvm_mmu_role_regs *regs)
 {
-	union kvm_mmu_role role = kvm_calc_mmu_role_common(vcpu, regs, base_only);
+	union kvm_mmu_role role = kvm_calc_mmu_role_common(vcpu, regs);
 
 	role.base.smep_andnot_wp = role.ext.cr4_smep && !____is_cr0_wp(regs);
 	role.base.smap_andnot_wp = role.ext.cr4_smap && !____is_cr0_wp(regs);
@@ -4801,11 +4782,10 @@ kvm_calc_shadow_root_page_role_common(struct kvm_vcpu *vcpu,
 
 static union kvm_mmu_role
 kvm_calc_shadow_mmu_root_page_role(struct kvm_vcpu *vcpu,
-				   const struct kvm_mmu_role_regs *regs,
-				   bool base_only)
+				   const struct kvm_mmu_role_regs *regs)
 {
 	union kvm_mmu_role role =
-		kvm_calc_shadow_root_page_role_common(vcpu, regs, base_only);
+		kvm_calc_shadow_root_page_role_common(vcpu, regs);
 
 	role.base.direct = !____is_cr0_pg(regs);
 
@@ -4847,7 +4827,7 @@ static void kvm_init_shadow_mmu(struct kvm_vcpu *vcpu,
 {
 	struct kvm_mmu *context = &vcpu->arch.root_mmu;
 	union kvm_mmu_role new_role =
-		kvm_calc_shadow_mmu_root_page_role(vcpu, regs, false);
+		kvm_calc_shadow_mmu_root_page_role(vcpu, regs);
 
 	shadow_mmu_init_context(vcpu, context, regs, new_role);
 }
@@ -4857,7 +4837,7 @@ kvm_calc_shadow_npt_root_page_role(struct kvm_vcpu *vcpu,
 				   const struct kvm_mmu_role_regs *regs)
 {
 	union kvm_mmu_role role =
-		kvm_calc_shadow_root_page_role_common(vcpu, regs, false);
+		kvm_calc_shadow_root_page_role_common(vcpu, regs);
 
 	role.base.direct = false;
 	role.base.level = kvm_mmu_get_tdp_level(vcpu);
@@ -4958,7 +4938,7 @@ kvm_calc_nested_mmu_role(struct kvm_vcpu *vcpu, const struct kvm_mmu_role_regs *
 {
 	union kvm_mmu_role role;
 
-	role = kvm_calc_shadow_root_page_role_common(vcpu, regs, false);
+	role = kvm_calc_shadow_root_page_role_common(vcpu, regs);
 
 	/*
 	 * Nested MMUs are used only for walking L2's gva->gpa, they never have
-- 
2.31.1


