automatically compute controls according to current mode
Signed-off-by: Qing He <qing.he@xxxxxxxxx>
Signed-off-by: Eddie Dong <eddie.dong@xxxxxxxxx>
---
diff -r 625f74a9bb36 xen/arch/x86/hvm/vmx/nest.c
--- a/xen/arch/x86/hvm/vmx/nest.c Wed Sep 08 22:04:16 2010 +0800
+++ b/xen/arch/x86/hvm/vmx/nest.c Wed Sep 08 22:07:15 2010 +0800
@@ -663,3 +663,35 @@
{
return vmx_nest_handle_vmresume(regs);
}
+
+static void set_shadow_control(struct vmx_nest_struct *nest,
+ unsigned int field,
+ u32 host_value)
+{
+ u32 value;
+
+ value = (u32) __get_vvmcs(nest->vvmcs, field) | host_value;
+ __vmwrite(field, value);
+}
+
+void vmx_nest_update_exec_control(struct vcpu *v, unsigned long value)
+{
+ struct vmx_nest_struct *nest = &v->arch.hvm_vmx.nest;
+
+ set_shadow_control(nest, CPU_BASED_VM_EXEC_CONTROL, value);
+}
+
+void vmx_nest_update_secondary_exec_control(struct vcpu *v,
+ unsigned long value)
+{
+ struct vmx_nest_struct *nest = &v->arch.hvm_vmx.nest;
+
+ set_shadow_control(nest, SECONDARY_VM_EXEC_CONTROL, value);
+}
+
+void vmx_nest_update_exception_bitmap(struct vcpu *v, unsigned long value)
+{
+ struct vmx_nest_struct *nest = &v->arch.hvm_vmx.nest;
+
+ set_shadow_control(nest, EXCEPTION_BITMAP, value);
+}
diff -r 625f74a9bb36 xen/arch/x86/hvm/vmx/vmx.c
--- a/xen/arch/x86/hvm/vmx/vmx.c Wed Sep 08 22:04:16 2010 +0800
+++ b/xen/arch/x86/hvm/vmx/vmx.c Wed Sep 08 22:07:15 2010 +0800
@@ -387,18 +387,28 @@
void vmx_update_cpu_exec_control(struct vcpu *v)
{
- __vmwrite(CPU_BASED_VM_EXEC_CONTROL, v->arch.hvm_vmx.exec_control);
+ if ( v->arch.hvm_vcpu.in_nesting )
+ vmx_nest_update_exec_control(v, v->arch.hvm_vmx.exec_control);
+ else
+ __vmwrite(CPU_BASED_VM_EXEC_CONTROL, v->arch.hvm_vmx.exec_control);
}
void vmx_update_secondary_exec_control(struct vcpu *v)
{
- __vmwrite(SECONDARY_VM_EXEC_CONTROL,
- v->arch.hvm_vmx.secondary_exec_control);
+ if ( v->arch.hvm_vcpu.in_nesting )
+ vmx_nest_update_secondary_exec_control(v,
+ v->arch.hvm_vmx.secondary_exec_control);
+ else
+ __vmwrite(SECONDARY_VM_EXEC_CONTROL,
+ v->arch.hvm_vmx.secondary_exec_control);
}
void vmx_update_exception_bitmap(struct vcpu *v)
{
- __vmwrite(EXCEPTION_BITMAP, v->arch.hvm_vmx.exception_bitmap);
+ if ( v->arch.hvm_vcpu.in_nesting )
+ vmx_nest_update_exception_bitmap(v, v->arch.hvm_vmx.exception_bitmap);
+ else
+ __vmwrite(EXCEPTION_BITMAP, v->arch.hvm_vmx.exception_bitmap);
}
static int vmx_guest_x86_mode(struct vcpu *v)
diff -r 625f74a9bb36 xen/include/asm-x86/hvm/vmx/nest.h
--- a/xen/include/asm-x86/hvm/vmx/nest.h Wed Sep 08 22:04:16 2010 +0800
+++ b/xen/include/asm-x86/hvm/vmx/nest.h Wed Sep 08 22:07:15 2010 +0800
@@ -69,4 +69,9 @@
int vmx_nest_handle_vmresume(struct cpu_user_regs *regs);
int vmx_nest_handle_vmlaunch(struct cpu_user_regs *regs);
+void vmx_nest_update_exec_control(struct vcpu *v, unsigned long value);
+void vmx_nest_update_secondary_exec_control(struct vcpu *v,
+ unsigned long value);
+void vmx_nest_update_exception_bitmap(struct vcpu *v, unsigned long value);
+
#endif /* __ASM_X86_HVM_NEST_H__ */
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