Add ioctls to control the X2APIC capability exposed by the virtual machine to

the guest.

At the moment this simply sets the state in the 'vcpu' instance but there is
no code that acts upon these settings.

2 files changed, 33 insertions, 0 deletions

diff --git a/lib/libvmmapi/vmmapi.c b/lib/libvmmapi/vmmapi.c
index d7e6143..78ed368 100644
--- a/lib/libvmmapi/vmmapi.c
+++ b/lib/libvmmapi/vmmapi.c
@@ -537,6 +537,35 @@ vm_get_stat_desc(struct vmctx *ctx, int index)
 		return (NULL);
 }
 
+int
+vm_get_x2apic_state(struct vmctx *ctx, int vcpu, enum x2apic_state *state)
+{
+	int error;
+	struct vm_x2apic x2apic;
+
+	bzero(&x2apic, sizeof(x2apic));
+	x2apic.cpuid = vcpu;
+
+	error = ioctl(ctx->fd, VM_GET_X2APIC_STATE, &x2apic);
+	*state = x2apic.state;
+	return (error);
+}
+
+int
+vm_set_x2apic_state(struct vmctx *ctx, int vcpu, enum x2apic_state state)
+{
+	int error;
+	struct vm_x2apic x2apic;
+
+	bzero(&x2apic, sizeof(x2apic));
+	x2apic.cpuid = vcpu;
+	x2apic.state = state;
+
+	error = ioctl(ctx->fd, VM_SET_X2APIC_STATE, &x2apic);
+
+	return (error);
+}
+
 /*
  * From Intel Vol 3a:
  * Table 9-1. IA-32 Processor States Following Power-up, Reset or INIT
diff --git a/lib/libvmmapi/vmmapi.h b/lib/libvmmapi/vmmapi.h
index 516bbc3..b918409 100644
--- a/lib/libvmmapi/vmmapi.h
+++ b/lib/libvmmapi/vmmapi.h
@@ -30,6 +30,7 @@
 #define	_VMMAPI_H_
 
 struct vmctx;
+enum x2apic_state;
 
 int	vm_create(const char *name);
 struct vmctx *vm_open(const char *name);
@@ -90,6 +91,9 @@ uint64_t *vm_get_stats(struct vmctx *ctx, int vcpu, struct timeval *ret_tv,
 		       int *ret_entries);
 const char *vm_get_stat_desc(struct vmctx *ctx, int index);
 
+int	vm_get_x2apic_state(struct vmctx *ctx, int vcpu, enum x2apic_state *s);
+int	vm_set_x2apic_state(struct vmctx *ctx, int vcpu, enum x2apic_state s);
+
 /* Reset vcpu register state */
 int	vcpu_reset(struct vmctx *ctx, int vcpu);