KVM: Portability: Split mmu-related static inline functions to mmu.h

Since these functions need to know the details of kvm or kvm_vcpu structure,
it can't be put in x86.h.  Create mmu.h to hold them.

Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com>
Acked-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

drivers/kvm/kvm.h

@@ -396,6 +396,7 @@ void kvm_arch_hardware_disable(void *garbage);
 int kvm_arch_hardware_setup(void);
 void kvm_arch_hardware_unsetup(void);
 void kvm_arch_check_processor_compat(void *rtn);
+int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu);
 
 void kvm_free_physmem(struct kvm *kvm);
 

drivers/kvm/mmu.c

@@ -20,6 +20,7 @@
 #include "vmx.h"
 #include "kvm.h"
 #include "x86.h"
+#include "mmu.h"
 
 #include <linux/types.h>
 #include <linux/string.h>

drivers/kvm/mmu.h

@@ -0,0 +1,44 @@
+#ifndef __KVM_X86_MMU_H
+#define __KVM_X86_MMU_H
+
+#include "kvm.h"
+
+static inline void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
+{
+	if (unlikely(vcpu->kvm->n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES))
+		__kvm_mmu_free_some_pages(vcpu);
+}
+
+static inline int kvm_mmu_reload(struct kvm_vcpu *vcpu)
+{
+	if (likely(vcpu->arch.mmu.root_hpa != INVALID_PAGE))
+		return 0;
+
+	return kvm_mmu_load(vcpu);
+}
+
+static inline int is_long_mode(struct kvm_vcpu *vcpu)
+{
+#ifdef CONFIG_X86_64
+	return vcpu->arch.shadow_efer & EFER_LME;
+#else
+	return 0;
+#endif
+}
+
+static inline int is_pae(struct kvm_vcpu *vcpu)
+{
+	return vcpu->arch.cr4 & X86_CR4_PAE;
+}
+
+static inline int is_pse(struct kvm_vcpu *vcpu)
+{
+	return vcpu->arch.cr4 & X86_CR4_PSE;
+}
+
+static inline int is_paging(struct kvm_vcpu *vcpu)
+{
+	return vcpu->arch.cr0 & X86_CR0_PG;
+}
+
+#endif

drivers/kvm/svm.c

@@ -17,6 +17,7 @@
 #include "kvm_svm.h"
 #include "x86_emulate.h"
 #include "irq.h"
+#include "mmu.h"
 
 #include <linux/module.h>
 #include <linux/kernel.h>

drivers/kvm/vmx.c

@@ -21,6 +21,7 @@
 #include "irq.h"
 #include "vmx.h"
 #include "segment_descriptor.h"
+#include "mmu.h"
 
 #include <linux/module.h>
 #include <linux/kernel.h>

drivers/kvm/x86.c

@@ -19,6 +19,7 @@
 #include "x86_emulate.h"
 #include "segment_descriptor.h"
 #include "irq.h"
+#include "mmu.h"
 
 #include <linux/kvm.h>
 #include <linux/fs.h>
@@ -3139,3 +3140,9 @@ int kvm_arch_set_memory_region(struct kvm *kvm,
 
 	return 0;
 }
+
+int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
+{
+	return vcpu->arch.mp_state == VCPU_MP_STATE_RUNNABLE
+	       || vcpu->arch.mp_state == VCPU_MP_STATE_SIPI_RECEIVED;
+}

drivers/kvm/x86.h

@@ -334,44 +334,6 @@ int kvm_fix_hypercall(struct kvm_vcpu *vcpu);
 
 int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code);
 
-static inline void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
-{
-	if (unlikely(vcpu->kvm->n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES))
-		__kvm_mmu_free_some_pages(vcpu);
-}
-
-static inline int kvm_mmu_reload(struct kvm_vcpu *vcpu)
-{
-	if (likely(vcpu->arch.mmu.root_hpa != INVALID_PAGE))
-		return 0;
-
-	return kvm_mmu_load(vcpu);
-}
-
-static inline int is_long_mode(struct kvm_vcpu *vcpu)
-{
-#ifdef CONFIG_X86_64
-	return vcpu->arch.shadow_efer & EFER_LME;
-#else
-	return 0;
-#endif
-}
-
-static inline int is_pae(struct kvm_vcpu *vcpu)
-{
-	return vcpu->arch.cr4 & X86_CR4_PAE;
-}
-
-static inline int is_pse(struct kvm_vcpu *vcpu)
-{
-	return vcpu->arch.cr4 & X86_CR4_PSE;
-}
-
-static inline int is_paging(struct kvm_vcpu *vcpu)
-{
-	return vcpu->arch.cr0 & X86_CR0_PG;
-}
-
 int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3);
 int complete_pio(struct kvm_vcpu *vcpu);
 
@@ -490,10 +452,4 @@ static inline void kvm_inject_gp(struct kvm_vcpu *vcpu, u32 error_code)
 #define TSS_REDIRECTION_SIZE (256 / 8)
 #define RMODE_TSS_SIZE (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1)
 
-static inline int kvm_arch_vcpu_runnable(struct kvm_vcpu *vcpu)
-{
-	return vcpu->arch.mp_state == VCPU_MP_STATE_RUNNABLE
-	       || vcpu->arch.mp_state == VCPU_MP_STATE_SIPI_RECEIVED;
-}
-
 #endif