1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Extracted from cputable.c 4 * 5 * Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org) 6 * 7 * Modifications for ppc64: 8 * Copyright (C) 2003 Dave Engebretsen <engebret@us.ibm.com> 9 * Copyright (C) 2005 Stephen Rothwell, IBM Corporation 10 */ 11 12 #include <linux/export.h> 13 #include <linux/cache.h> 14 #include <linux/of.h> 15 16 #include <asm/firmware.h> 17 #include <asm/kvm_guest.h> 18 19 #ifdef CONFIG_PPC64 20 unsigned long powerpc_firmware_features __read_mostly; 21 EXPORT_SYMBOL_GPL(powerpc_firmware_features); 22 #endif 23 24 #if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_GUEST) 25 bool check_kvm_guest(void) 26 { 27 struct device_node *hyper_node; 28 29 hyper_node = of_find_node_by_path("/hypervisor"); 30 if (!hyper_node) 31 return false; 32 33 if (!of_device_is_compatible(hyper_node, "linux,kvm")) 34 return false; 35 36 return true; 37 } 38 #endif 39