linux-kernel - [PATCH v2] KVM: Fix some obsolete comments

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Date:   Thu, 27 Feb 2020 11:20:54 +0800
From:   linmiaohe <linmiaohe@...wei.com>
To:     <pbonzini@...hat.com>, <rkrcmar@...hat.com>,
        <sean.j.christopherson@...el.com>, <vkuznets@...hat.com>,
        <wanpengli@...cent.com>, <jmattson@...gle.com>, <joro@...tes.org>,
        <tglx@...utronix.de>, <mingo@...hat.com>, <bp@...en8.de>,
        <hpa@...or.com>
CC:     <linmiaohe@...wei.com>, <kvm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <x86@...nel.org>
Subject: [PATCH v2] KVM: Fix some obsolete comments

From: Miaohe Lin <linmiaohe@...wei.com>

Remove some obsolete comments, fix wrong function name and description.

Reviewed-by: Vitaly Kuznetsov <vkuznets@...hat.com>
Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
---
v1->v2:
Use Oxford comma
Collect Vitaly's R-b
---
 arch/x86/kvm/vmx/nested.c | 4 ++--
 arch/x86/kvm/vmx/vmx.c    | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index 0946122a8d3b..966a5c394c06 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -2960,7 +2960,7 @@ static int nested_vmx_check_vmentry_hw(struct kvm_vcpu *vcpu)
 	/*
 	 * Induce a consistency check VMExit by clearing bit 1 in GUEST_RFLAGS,
 	 * which is reserved to '1' by hardware.  GUEST_RFLAGS is guaranteed to
-	 * be written (by preparve_vmcs02()) before the "real" VMEnter, i.e.
+	 * be written (by prepare_vmcs02()) before the "real" VMEnter, i.e.
 	 * there is no need to preserve other bits or save/restore the field.
 	 */
 	vmcs_writel(GUEST_RFLAGS, 0);
@@ -4382,7 +4382,7 @@ void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason,
  * Decode the memory-address operand of a vmx instruction, as recorded on an
  * exit caused by such an instruction (run by a guest hypervisor).
  * On success, returns 0. When the operand is invalid, returns 1 and throws
- * #UD or #GP.
+ * #UD, #GP, or #SS.
  */
 int get_vmx_mem_address(struct kvm_vcpu *vcpu, unsigned long exit_qualification,
 			u32 vmx_instruction_info, bool wr, int len, gva_t *ret)
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index a04017bdae05..efc509a7945a 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -808,7 +808,7 @@ void update_exception_bitmap(struct kvm_vcpu *vcpu)
 	if (to_vmx(vcpu)->rmode.vm86_active)
 		eb = ~0;
 	if (enable_ept)
-		eb &= ~(1u << PF_VECTOR); /* bypass_guest_pf = 0 */
+		eb &= ~(1u << PF_VECTOR);
 
 	/* When we are running a nested L2 guest and L1 specified for it a
 	 * certain exception bitmap, we must trap the same exceptions and pass
-- 
2.19.1