linux-kernel - [PATCH 07/15] KVM: VMX: Rename vcpu_vmx's "guest_msrs_ready" to "guest_uret_msrs

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Date:   Mon, 22 Jun 2020 15:42:41 -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
Subject: [PATCH 07/15] KVM: VMX: Rename vcpu_vmx's "guest_msrs_ready" to "guest_uret_msrs_loaded"

Add "uret" to "guest_msrs_ready" to explicitly associate it with the
"guest_uret_msrs" array, and replace "ready" with "loaded" to more
precisely reflect what it tracks, e.g. "ready" could be interpreted as
meaning ready for processing (setup_msrs() has run), which is wrong.
"loaded" also aligns with the similar "guest_state_loaded" field.

No functional change intended.

Signed-off-by: Sean Christopherson <sean.j.christopherson@...el.com>
---
 arch/x86/kvm/vmx/vmx.c | 8 ++++----
 arch/x86/kvm/vmx/vmx.h | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index baf425fa7089..cebd68ea50ba 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -1142,8 +1142,8 @@ void vmx_prepare_switch_to_guest(struct kvm_vcpu *vcpu)
 	 * when guest state is loaded. This happens when guest transitions
 	 * to/from long-mode by setting MSR_EFER.LMA.
 	 */
-	if (!vmx->guest_msrs_ready) {
-		vmx->guest_msrs_ready = true;
+	if (!vmx->guest_uret_msrs_loaded) {
+		vmx->guest_uret_msrs_loaded = true;
 		for (i = 0; i < vmx->nr_active_uret_msrs; ++i)
 			kvm_set_user_return_msr(vmx->guest_uret_msrs[i].index,
 						vmx->guest_uret_msrs[i].data,
@@ -1231,7 +1231,7 @@ static void vmx_prepare_switch_to_host(struct vcpu_vmx *vmx)
 #endif
 	load_fixmap_gdt(raw_smp_processor_id());
 	vmx->guest_state_loaded = false;
-	vmx->guest_msrs_ready = false;
+	vmx->guest_uret_msrs_loaded = false;
 }
 
 #ifdef CONFIG_X86_64
@@ -1759,7 +1759,7 @@ static void setup_msrs(struct vcpu_vmx *vmx)
 		move_msr_up(vmx, index, nr_active_uret_msrs++);
 
 	vmx->nr_active_uret_msrs = nr_active_uret_msrs;
-	vmx->guest_msrs_ready = false;
+	vmx->guest_uret_msrs_loaded = false;
 
 	if (cpu_has_vmx_msr_bitmap())
 		vmx_update_msr_bitmap(&vmx->vcpu);
diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h
index 55257195cb27..a0237ff6c4e0 100644
--- a/arch/x86/kvm/vmx/vmx.h
+++ b/arch/x86/kvm/vmx/vmx.h
@@ -220,7 +220,7 @@ struct vcpu_vmx {
 	struct vmx_uret_msr   guest_uret_msrs[MAX_NR_USER_RETURN_MSRS];
 	int                   nr_uret_msrs;
 	int                   nr_active_uret_msrs;
-	bool                  guest_msrs_ready;
+	bool                  guest_uret_msrs_loaded;
 #ifdef CONFIG_X86_64
 	u64		      msr_host_kernel_gs_base;
 	u64		      msr_guest_kernel_gs_base;
-- 
2.26.0