[RFC][PATCH 4/7] KVM: Export necessary function to modules()

[RFC][PATCH 4/7] KVM: Export necessary function to modules()

[Yang, Sheng]

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From 1b7e6dcffe5845a05b7bfe42b52d680f17f34d5d Mon Sep 17 00:00:00 2001
From: Sheng Yang <sheng.yang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Date: Fri, 1 Feb 2008 06:41:35 +0800
Subject: [PATCH] KVM: Export necessary function to modules()

The function load_pdptrs() is needed by VMX for EPT in PAE mode. The function
gfn_to_hva() is needed by VMX for supporting EPT swap.

Signed-off-by: Sheng Yang <sheng.yang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
 arch/x86/kvm/x86.c         |    1 +
 include/asm-x86/kvm_host.h |    1 +
 include/linux/kvm_host.h   |    1 +
 virt/kvm/kvm_main.c        |    3 ++-
 4 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 8f94a0b..31cdf09 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -202,6 +202,7 @@ out:

 	return ret;
 }
+EXPORT_SYMBOL_GPL(load_pdptrs);

 static bool pdptrs_changed(struct kvm_vcpu *vcpu)
 {
diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
index c1d52af..b133317 100644
--- a/include/asm-x86/kvm_host.h
+++ b/include/asm-x86/kvm_host.h
@@ -425,6 +425,7 @@ void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int 
slot);
 void kvm_mmu_zap_all(struct kvm *kvm);
 unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm);
 void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int 
kvm_nr_mmu_pages);
+int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3);

 enum emulation_result {
 	EMULATE_DONE,       /* no further processing */
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index a84c912..8c55beb 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -182,6 +182,7 @@ int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int 
offset, int len);
 int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len);
 struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn);
 int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn);
+unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn);
 void mark_page_dirty(struct kvm *kvm, gfn_t gfn);

 void kvm_vcpu_block(struct kvm_vcpu *vcpu);
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 8fc12dc..0e6d89d 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -443,7 +443,7 @@ int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn)
 }
 EXPORT_SYMBOL_GPL(kvm_is_visible_gfn);

-static unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn)
+unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn)
 {
 	struct kvm_memory_slot *slot;

@@ -453,6 +453,7 @@ static unsigned long gfn_to_hva(struct kvm *kvm, gfn_t 
gfn)
 		return bad_hva();
 	return (slot->userspace_addr + (gfn - slot->base_gfn) * PAGE_SIZE);
 }
+EXPORT_SYMBOL_GPL(gfn_to_hva);

 /*
  * Requires current->mm->mmap_sem to be held
--
debian.1.5.3.7.1-dirty


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From 1b7e6dcffe5845a05b7bfe42b52d680f17f34d5d Mon Sep 17 00:00:00 2001
From: Sheng Yang <sheng.yang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Date: Fri, 1 Feb 2008 06:41:35 +0800
Subject: [PATCH] KVM: Export necessary function to modules()

The function load_pdptrs() is needed by VMX for EPT in PAE mode. The function
gfn_to_hva() is needed by VMX for supporting EPT swap.

Signed-off-by: Sheng Yang <sheng.yang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
---
 arch/x86/kvm/x86.c         |    1 +
 include/asm-x86/kvm_host.h |    1 +
 include/linux/kvm_host.h   |    1 +
 virt/kvm/kvm_main.c        |    3 ++-
 4 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 8f94a0b..31cdf09 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -202,6 +202,7 @@ out:
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(load_pdptrs);
 
 static bool pdptrs_changed(struct kvm_vcpu *vcpu)
 {
diff --git a/include/asm-x86/kvm_host.h b/include/asm-x86/kvm_host.h
index c1d52af..b133317 100644
--- a/include/asm-x86/kvm_host.h
+++ b/include/asm-x86/kvm_host.h
@@ -425,6 +425,7 @@ void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot);
 void kvm_mmu_zap_all(struct kvm *kvm);
 unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm);
 void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages);
+int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3);
 
 enum emulation_result {
 	EMULATE_DONE,       /* no further processing */
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index a84c912..8c55beb 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -182,6 +182,7 @@ int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len);
 int kvm_clear_guest(struct kvm *kvm, gpa_t gpa, unsigned long len);
 struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn);
 int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn);
+unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn);
 void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
 
 void kvm_vcpu_block(struct kvm_vcpu *vcpu);
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 8fc12dc..0e6d89d 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -443,7 +443,7 @@ int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn)
 }
 EXPORT_SYMBOL_GPL(kvm_is_visible_gfn);
 
-static unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn)
+unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn)
 {
 	struct kvm_memory_slot *slot;
 
@@ -453,6 +453,7 @@ static unsigned long gfn_to_hva(struct kvm *kvm, gfn_t gfn)
 		return bad_hva();
 	return (slot->userspace_addr + (gfn - slot->base_gfn) * PAGE_SIZE);
 }
+EXPORT_SYMBOL_GPL(gfn_to_hva);
 
 /*
  * Requires current->mm->mmap_sem to be held
-- 
debian.1.5.3.7.1-dirty


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