linux-kernel - [PATCH 1/5] KVM: x86: MMU: Make force_pt

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Message-Id: <20151015194049.8baba43bcb79d0fd1c335d1a@lab.ntt.co.jp>
Date:	Thu, 15 Oct 2015 19:40:49 +0900
From:	Takuya Yoshikawa <yoshikawa_takuya_b1@....ntt.co.jp>
To:	pbonzini@...hat.com
Cc:	kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/5] KVM: x86: MMU: Make force_pt_level bool

This will be passed to a function later.

Signed-off-by: Takuya Yoshikawa <yoshikawa_takuya_b1@....ntt.co.jp>
---
 arch/x86/kvm/mmu.c         |    8 ++++----
 arch/x86/kvm/paging_tmpl.h |    4 ++--
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index b8482c0..2262728 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2962,7 +2962,7 @@ static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, u32 error_code,
 {
 	int r;
 	int level;
-	int force_pt_level;
+	bool force_pt_level;
 	pfn_t pfn;
 	unsigned long mmu_seq;
 	bool map_writable, write = error_code & PFERR_WRITE_MASK;
@@ -3476,7 +3476,7 @@ static int tdp_page_fault(struct kvm_vcpu *vcpu, gva_t gpa, u32 error_code,
 	pfn_t pfn;
 	int r;
 	int level;
-	int force_pt_level;
+	bool force_pt_level;
 	gfn_t gfn = gpa >> PAGE_SHIFT;
 	unsigned long mmu_seq;
 	int write = error_code & PFERR_WRITE_MASK;
@@ -3497,9 +3497,9 @@ static int tdp_page_fault(struct kvm_vcpu *vcpu, gva_t gpa, u32 error_code,
 
 	if (mapping_level_dirty_bitmap(vcpu, gfn) ||
 	    !check_hugepage_cache_consistency(vcpu, gfn, PT_DIRECTORY_LEVEL))
-		force_pt_level = 1;
+		force_pt_level = true;
 	else
-		force_pt_level = 0;
+		force_pt_level = false;
 
 	if (likely(!force_pt_level)) {
 		level = mapping_level(vcpu, gfn);
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 736e6ab..07f1a4e 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -698,7 +698,7 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, u32 error_code,
 	int r;
 	pfn_t pfn;
 	int level = PT_PAGE_TABLE_LEVEL;
-	int force_pt_level;
+	bool force_pt_level;
 	unsigned long mmu_seq;
 	bool map_writable, is_self_change_mapping;
 
@@ -747,7 +747,7 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, u32 error_code,
 		force_pt_level = mapping_level_dirty_bitmap(vcpu, walker.gfn)
 		   || is_self_change_mapping;
 	else
-		force_pt_level = 1;
+		force_pt_level = true;
 	if (!force_pt_level) {
 		level = min(walker.level, mapping_level(vcpu, walker.gfn));
 		walker.gfn = walker.gfn & ~(KVM_PAGES_PER_HPAGE(level) - 1);
-- 
1.7.9.5

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