Add ioctl(VM_REINIT) to reinitialize the virtual machine state maintained

by vmm.ko. This allows the virtual machine to be restarted without having
to destroy it first.

Reviewed by:	grehan

2 files changed, 8 insertions, 0 deletions

diff --git a/lib/libvmmapi/vmmapi.c b/lib/libvmmapi/vmmapi.c
index 89c7825..5ce3d8e 100644
--- a/lib/libvmmapi/vmmapi.c
+++ b/lib/libvmmapi/vmmapi.c
@@ -367,6 +367,13 @@ vm_suspend(struct vmctx *ctx, enum vm_suspend_how how)
 	return (ioctl(ctx->fd, VM_SUSPEND, &vmsuspend));
 }
 
+int
+vm_reinit(struct vmctx *ctx)
+{
+
+	return (ioctl(ctx->fd, VM_REINIT, 0));
+}
+
 static int
 vm_inject_exception_real(struct vmctx *ctx, int vcpu, int vector,
     int error_code, int error_code_valid)
diff --git a/lib/libvmmapi/vmmapi.h b/lib/libvmmapi/vmmapi.h
index 0f2e3ae..4cc4290 100644
--- a/lib/libvmmapi/vmmapi.h
+++ b/lib/libvmmapi/vmmapi.h
@@ -69,6 +69,7 @@ int	vm_get_register(struct vmctx *ctx, int vcpu, int reg, uint64_t *retval);
 int	vm_run(struct vmctx *ctx, int vcpu, uint64_t rip,
 	       struct vm_exit *ret_vmexit);
 int	vm_suspend(struct vmctx *ctx, enum vm_suspend_how how);
+int	vm_reinit(struct vmctx *ctx);
 int	vm_apicid2vcpu(struct vmctx *ctx, int apicid);
 int	vm_inject_exception(struct vmctx *ctx, int vcpu, int vec);
 int	vm_inject_exception2(struct vmctx *ctx, int vcpu, int vec, int errcode);