KVM: move segment_base() into vmx.c

segment_base() is used only by vmx so move it there.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index e3167224d93696ae60f7187937eb3338b3a6a5fc..ec891a2ce86e4fefa90c18bf5b26563e0c605527 100644 (file)
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -644,8 +644,6 @@ int emulator_write_emulated(unsigned long addr,
                            unsigned int bytes,
                            struct kvm_vcpu *vcpu);
 
-unsigned long segment_base(u16 selector);
-
 void kvm_mmu_flush_tlb(struct kvm_vcpu *vcpu);
 void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
                       const u8 *new, int bytes,
@@ -723,13 +721,6 @@ static inline void kvm_get_idt(struct desc_ptr *table)
        asm("sidt %0" : "=m"(*table));
 }
 
-static inline unsigned long kvm_read_tr_base(void)
-{
-       u16 tr;
-       asm("str %0" : "=g"(tr));
-       return segment_base(tr);
-}
-
 #ifdef CONFIG_X86_64
 static inline unsigned long read_msr(unsigned long msr)
 {

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 68712bdf040703742ccef2256308fafe8c519e51..8e2a24693be9d474724e8b1a4c633a55b60628f4 100644 (file)
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -634,6 +634,43 @@ static bool update_transition_efer(struct vcpu_vmx *vmx, int efer_offset)
        return true;
 }
 
+static unsigned long segment_base(u16 selector)
+{
+       struct desc_ptr gdt;
+       struct desc_struct *d;
+       unsigned long table_base;
+       unsigned long v;
+
+       if (!(selector & ~3))
+               return 0;
+
+       native_store_gdt(&gdt);
+       table_base = gdt.address;
+
+       if (selector & 4) {           /* from ldt */
+               u16 ldt_selector = kvm_read_ldt();
+
+               if (!(ldt_selector & ~3))
+                       return 0;
+
+               table_base = segment_base(ldt_selector);
+       }
+       d = (struct desc_struct *)(table_base + (selector & ~7));
+       v = get_desc_base(d);
+#ifdef CONFIG_X86_64
+       if (d->s == 0 && (d->type == 2 || d->type == 9 || d->type == 11))
+               v |= ((unsigned long)((struct ldttss_desc64 *)d)->base3) << 32;
+#endif
+       return v;
+}
+
+static inline unsigned long kvm_read_tr_base(void)
+{
+       u16 tr;
+       asm("str %0" : "=g"(tr));
+       return segment_base(tr);
+}
+
 static void vmx_save_host_state(struct kvm_vcpu *vcpu)
 {
        struct vcpu_vmx *vmx = to_vmx(vcpu);

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 814e72a02effcbf736f485dfc557e276944da91f..2b34dc705cfb2b51d9b94aa59de37a34953427c9 100644 (file)
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -223,36 +223,6 @@ static void drop_user_return_notifiers(void *ignore)
                kvm_on_user_return(&smsr->urn);
 }
 
-unsigned long segment_base(u16 selector)
-{
-       struct desc_ptr gdt;
-       struct desc_struct *d;
-       unsigned long table_base;
-       unsigned long v;
-
-       if (!(selector & ~3))
-               return 0;
-
-       native_store_gdt(&gdt);
-       table_base = gdt.address;
-
-       if (selector & 4) {           /* from ldt */
-               u16 ldt_selector = kvm_read_ldt();
-
-               if (!(ldt_selector & ~3))
-                       return 0;
-               table_base = segment_base(ldt_selector);
-       }
-       d = (struct desc_struct *)(table_base + (selector & ~7));
-       v = get_desc_base(d);
-#ifdef CONFIG_X86_64
-       if (d->s == 0 && (d->type == 2 || d->type == 9 || d->type == 11))
-               v |= ((unsigned long)((struct ldttss_desc64 *)d)->base3) << 32;
-#endif
-       return v;
-}
-EXPORT_SYMBOL_GPL(segment_base);
-
 u64 kvm_get_apic_base(struct kvm_vcpu *vcpu)
 {
        if (irqchip_in_kernel(vcpu->kvm))