linux-kernel - [PATCH v3 18/37] KVM: VMX: Move vmx_flush

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Date:   Fri, 20 Mar 2020 14:28:14 -0700
From:   Sean Christopherson <sean.j.christopherson@...el.com>
To:     Paolo Bonzini <pbonzini@...hat.com>
Cc:     Sean Christopherson <sean.j.christopherson@...el.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, Ben Gardon <bgardon@...gle.com>,
        Junaid Shahid <junaids@...gle.com>,
        Liran Alon <liran.alon@...cle.com>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        John Haxby <john.haxby@...cle.com>,
        Miaohe Lin <linmiaohe@...wei.com>,
        Tom Lendacky <thomas.lendacky@....com>
Subject: [PATCH v3 18/37] KVM: VMX: Move vmx_flush_tlb() to vmx.c

Move vmx_flush_tlb() to vmx.c and make it non-inline static now that all
its callers live in vmx.c.

No functional change intended.

Signed-off-by: Sean Christopherson <sean.j.christopherson@...el.com>
---
 arch/x86/kvm/vmx/vmx.c | 25 +++++++++++++++++++++++++
 arch/x86/kvm/vmx/vmx.h | 25 -------------------------
 2 files changed, 25 insertions(+), 25 deletions(-)

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 477bdbc52ed0..c6affaaef138 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -2849,6 +2849,31 @@ static void exit_lmode(struct kvm_vcpu *vcpu)
 
 #endif
 
+static void vmx_flush_tlb(struct kvm_vcpu *vcpu)
+{
+	struct vcpu_vmx *vmx = to_vmx(vcpu);
+
+	/*
+	 * Flush all EPTP/VPID contexts, as the TLB flush _may_ have been
+	 * invoked via kvm_flush_remote_tlbs().  Flushing remote TLBs requires
+	 * all contexts to be flushed, not just the active context.
+	 *
+	 * Note, this also ensures a deferred TLB flush with VPID enabled and
+	 * EPT disabled invalidates the "correct" VPID, by nuking both L1 and
+	 * L2's VPIDs.
+	 */
+	if (enable_ept) {
+		ept_sync_global();
+	} else if (enable_vpid) {
+		if (cpu_has_vmx_invvpid_global()) {
+			vpid_sync_vcpu_global();
+		} else {
+			vpid_sync_vcpu_single(vmx->vpid);
+			vpid_sync_vcpu_single(vmx->nested.vpid02);
+		}
+	}
+}
+
 static void vmx_flush_tlb_gva(struct kvm_vcpu *vcpu, gva_t addr)
 {
 	/*
diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h
index bab5d62ad964..571249e18bb6 100644
--- a/arch/x86/kvm/vmx/vmx.h
+++ b/arch/x86/kvm/vmx/vmx.h
@@ -503,31 +503,6 @@ static inline struct vmcs *alloc_vmcs(bool shadow)
 
 u64 construct_eptp(struct kvm_vcpu *vcpu, unsigned long root_hpa);
 
-static inline void vmx_flush_tlb(struct kvm_vcpu *vcpu)
-{
-	struct vcpu_vmx *vmx = to_vmx(vcpu);
-
-	/*
-	 * Flush all EPTP/VPID contexts, as the TLB flush _may_ have been
-	 * invoked via kvm_flush_remote_tlbs().  Flushing remote TLBs requires
-	 * all contexts to be flushed, not just the active context.
-	 *
-	 * Note, this also ensures a deferred TLB flush with VPID enabled and
-	 * EPT disabled invalidates the "correct" VPID, by nuking both L1 and
-	 * L2's VPIDs.
-	 */
-	if (enable_ept) {
-		ept_sync_global();
-	} else if (enable_vpid) {
-		if (cpu_has_vmx_invvpid_global()) {
-			vpid_sync_vcpu_global();
-		} else {
-			vpid_sync_vcpu_single(vmx->vpid);
-			vpid_sync_vcpu_single(vmx->nested.vpid02);
-		}
-	}
-}
-
 static inline void decache_tsc_multiplier(struct vcpu_vmx *vmx)
 {
 	vmx->current_tsc_ratio = vmx->vcpu.arch.tsc_scaling_ratio;
-- 
2.24.1