blob: 20328f72f9f2ba2965da1f3148ff4f533f4564cd (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Extracted from cputable.c
*
* Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
*
* Modifications for ppc64:
* Copyright (C) 2003 Dave Engebretsen <engebret@us.ibm.com>
* Copyright (C) 2005 Stephen Rothwell, IBM Corporation
*/
#include <linux/export.h>
#include <linux/cache.h>
#include <linux/of.h>
#include <asm/firmware.h>
#include <asm/kvm_guest.h>
#ifdef CONFIG_PPC64
unsigned long powerpc_firmware_features __read_mostly;
EXPORT_SYMBOL_GPL(powerpc_firmware_features);
#endif
#if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_GUEST)
DEFINE_STATIC_KEY_FALSE(kvm_guest);
int __init check_kvm_guest(void)
{
struct device_node *hyper_node;
hyper_node = of_find_node_by_path("/hypervisor");
if (!hyper_node)
return 0;
if (of_device_is_compatible(hyper_node, "linux,kvm"))
static_branch_enable(&kvm_guest);
of_node_put(hyper_node);
return 0;
}
core_initcall(check_kvm_guest); // before kvm_guest_init()
#endif
|
