[kvm-unit-tests PATCH 13/16] svm: move vmcb_ident to svm_lib.c

[Maxim Levitsky <mlevitsk@xxxxxxxxxx>]

Signed-off-by: Maxim Levitsky <mlevitsk@xxxxxxxxxx>
---
 lib/x86/svm_lib.c | 54 +++++++++++++++++++++++++++++++++++++++++++++++
 lib/x86/svm_lib.h |  4 ++++
 x86/svm.c         | 54 -----------------------------------------------
 x86/svm.h         |  1 -
 4 files changed, 58 insertions(+), 55 deletions(-)

diff --git a/lib/x86/svm_lib.c b/lib/x86/svm_lib.c
index 9e82e363..2b067c65 100644
--- a/lib/x86/svm_lib.c
+++ b/lib/x86/svm_lib.c
@@ -103,3 +103,57 @@ void setup_svm(void)
 
 	setup_npt();
 }
+
+void vmcb_set_seg(struct vmcb_seg *seg, u16 selector,
+			 u64 base, u32 limit, u32 attr)
+{
+	seg->selector = selector;
+	seg->attrib = attr;
+	seg->limit = limit;
+	seg->base = base;
+}
+
+void vmcb_ident(struct vmcb *vmcb)
+{
+	u64 vmcb_phys = virt_to_phys(vmcb);
+	struct vmcb_save_area *save = &vmcb->save;
+	struct vmcb_control_area *ctrl = &vmcb->control;
+	u32 data_seg_attr = 3 | SVM_SELECTOR_S_MASK | SVM_SELECTOR_P_MASK
+		| SVM_SELECTOR_DB_MASK | SVM_SELECTOR_G_MASK;
+	u32 code_seg_attr = 9 | SVM_SELECTOR_S_MASK | SVM_SELECTOR_P_MASK
+		| SVM_SELECTOR_L_MASK | SVM_SELECTOR_G_MASK;
+	struct descriptor_table_ptr desc_table_ptr;
+
+	memset(vmcb, 0, sizeof(*vmcb));
+	asm volatile ("vmsave %0" : : "a"(vmcb_phys) : "memory");
+	vmcb_set_seg(&save->es, read_es(), 0, -1U, data_seg_attr);
+	vmcb_set_seg(&save->cs, read_cs(), 0, -1U, code_seg_attr);
+	vmcb_set_seg(&save->ss, read_ss(), 0, -1U, data_seg_attr);
+	vmcb_set_seg(&save->ds, read_ds(), 0, -1U, data_seg_attr);
+	sgdt(&desc_table_ptr);
+	vmcb_set_seg(&save->gdtr, 0, desc_table_ptr.base, desc_table_ptr.limit, 0);
+	sidt(&desc_table_ptr);
+	vmcb_set_seg(&save->idtr, 0, desc_table_ptr.base, desc_table_ptr.limit, 0);
+	ctrl->asid = 1;
+	save->cpl = 0;
+	save->efer = rdmsr(MSR_EFER);
+	save->cr4 = read_cr4();
+	save->cr3 = read_cr3();
+	save->cr0 = read_cr0();
+	save->dr7 = read_dr7();
+	save->dr6 = read_dr6();
+	save->cr2 = read_cr2();
+	save->g_pat = rdmsr(MSR_IA32_CR_PAT);
+	save->dbgctl = rdmsr(MSR_IA32_DEBUGCTLMSR);
+	ctrl->intercept = (1ULL << INTERCEPT_VMRUN) |
+		(1ULL << INTERCEPT_VMMCALL) |
+		(1ULL << INTERCEPT_SHUTDOWN);
+	ctrl->iopm_base_pa = virt_to_phys(io_bitmap);
+	ctrl->msrpm_base_pa = virt_to_phys(msr_bitmap);
+
+	if (npt_supported()) {
+		ctrl->nested_ctl = 1;
+		ctrl->nested_cr3 = (u64)pml4e;
+		ctrl->tlb_ctl = TLB_CONTROL_FLUSH_ALL_ASID;
+	}
+}
diff --git a/lib/x86/svm_lib.h b/lib/x86/svm_lib.h
index 50664b24..27c3b137 100644
--- a/lib/x86/svm_lib.h
+++ b/lib/x86/svm_lib.h
@@ -54,7 +54,11 @@ static inline void clgi(void)
 	asm volatile ("clgi");
 }
 
+void vmcb_set_seg(struct vmcb_seg *seg, u16 selector,
+				  u64 base, u32 limit, u32 attr);
+
 void setup_svm(void);
+void vmcb_ident(struct vmcb *vmcb);
 
 u64 *npt_get_pte(u64 address);
 u64 *npt_get_pde(u64 address);
diff --git a/x86/svm.c b/x86/svm.c
index bf8caf54..37b4cd38 100644
--- a/x86/svm.c
+++ b/x86/svm.c
@@ -63,15 +63,6 @@ void inc_test_stage(struct svm_test *test)
 	barrier();
 }
 
-static void vmcb_set_seg(struct vmcb_seg *seg, u16 selector,
-			 u64 base, u32 limit, u32 attr)
-{
-	seg->selector = selector;
-	seg->attrib = attr;
-	seg->limit = limit;
-	seg->base = base;
-}
-
 static test_guest_func guest_main;
 
 void test_set_guest(test_guest_func func)
@@ -85,51 +76,6 @@ static void test_thunk(struct svm_test *test)
 	vmmcall();
 }
 
-void vmcb_ident(struct vmcb *vmcb)
-{
-	u64 vmcb_phys = virt_to_phys(vmcb);
-	struct vmcb_save_area *save = &vmcb->save;
-	struct vmcb_control_area *ctrl = &vmcb->control;
-	u32 data_seg_attr = 3 | SVM_SELECTOR_S_MASK | SVM_SELECTOR_P_MASK
-		| SVM_SELECTOR_DB_MASK | SVM_SELECTOR_G_MASK;
-	u32 code_seg_attr = 9 | SVM_SELECTOR_S_MASK | SVM_SELECTOR_P_MASK
-		| SVM_SELECTOR_L_MASK | SVM_SELECTOR_G_MASK;
-	struct descriptor_table_ptr desc_table_ptr;
-
-	memset(vmcb, 0, sizeof(*vmcb));
-	asm volatile ("vmsave %0" : : "a"(vmcb_phys) : "memory");
-	vmcb_set_seg(&save->es, read_es(), 0, -1U, data_seg_attr);
-	vmcb_set_seg(&save->cs, read_cs(), 0, -1U, code_seg_attr);
-	vmcb_set_seg(&save->ss, read_ss(), 0, -1U, data_seg_attr);
-	vmcb_set_seg(&save->ds, read_ds(), 0, -1U, data_seg_attr);
-	sgdt(&desc_table_ptr);
-	vmcb_set_seg(&save->gdtr, 0, desc_table_ptr.base, desc_table_ptr.limit, 0);
-	sidt(&desc_table_ptr);
-	vmcb_set_seg(&save->idtr, 0, desc_table_ptr.base, desc_table_ptr.limit, 0);
-	ctrl->asid = 1;
-	save->cpl = 0;
-	save->efer = rdmsr(MSR_EFER);
-	save->cr4 = read_cr4();
-	save->cr3 = read_cr3();
-	save->cr0 = read_cr0();
-	save->dr7 = read_dr7();
-	save->dr6 = read_dr6();
-	save->cr2 = read_cr2();
-	save->g_pat = rdmsr(MSR_IA32_CR_PAT);
-	save->dbgctl = rdmsr(MSR_IA32_DEBUGCTLMSR);
-	ctrl->intercept = (1ULL << INTERCEPT_VMRUN) |
-		(1ULL << INTERCEPT_VMMCALL) |
-		(1ULL << INTERCEPT_SHUTDOWN);
-	ctrl->iopm_base_pa = virt_to_phys(svm_get_io_bitmap());
-	ctrl->msrpm_base_pa = virt_to_phys(svm_get_msr_bitmap());
-
-	if (npt_supported()) {
-		ctrl->nested_ctl = 1;
-		ctrl->nested_cr3 = (u64)npt_get_pml4e();
-		ctrl->tlb_ctl = TLB_CONTROL_FLUSH_ALL_ASID;
-	}
-}
-
 struct regs regs;
 
 struct regs get_regs(void)
diff --git a/x86/svm.h b/x86/svm.h
index f4343883..623f2b36 100644
--- a/x86/svm.h
+++ b/x86/svm.h
@@ -55,7 +55,6 @@ bool default_finished(struct svm_test *test);
 int get_test_stage(struct svm_test *test);
 void set_test_stage(struct svm_test *test, int s);
 void inc_test_stage(struct svm_test *test);
-void vmcb_ident(struct vmcb *vmcb);
 struct regs get_regs(void);
 int __svm_vmrun(u64 rip);
 void __svm_bare_vmrun(void);
-- 
2.26.3