| 1 | |
| 2 | |
| 3 | * Extracted from cputable.c
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| 4 | *
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| 5 | * Copyright (C) 2001 Ben. Herrenschmidt ([email protected])
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| 6 | *
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| 7 | * Modifications for ppc64:
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| 8 | * Copyright (C) 2003 Dave Engebretsen <[email protected]>
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| 9 | * Copyright (C) 2005 Stephen Rothwell, IBM Corporation
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| 10 |
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| 11 |
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| 12 | #include <linux/export.h>
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| 13 | #include <linux/cache.h>
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| 14 | #include <linux/of.h>
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| 15 |
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| 16 | #include <asm/firmware.h>
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| 17 | #include <asm/kvm_guest.h>
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| 18 |
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| 19 | #ifdef CONFIG_PPC64
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| 20 | unsigned long powerpc_firmware_features __read_mostly;
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| 21 | EXPORT_SYMBOL_GPL(powerpc_firmware_features);
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| 22 | #endif
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| 23 |
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| 24 | #if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_GUEST)
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| 25 | DEFINE_STATIC_KEY_FALSE(kvm_guest);
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| 26 | EXPORT_SYMBOL_GPL(kvm_guest);
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| 27 |
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| 28 | int __init check_kvm_guest(void)
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| 29 | {
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| 30 | struct device_node *hyper_node;
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| 31 |
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| 32 | hyper_node = of_find_node_by_path("/hypervisor");
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| 33 | if (!hyper_node)
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| 34 | return 0;
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| 35 |
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| 36 | if (of_device_is_compatible(hyper_node, "linux,kvm"))
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| 37 | static_branch_enable(&kvm_guest);
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| 38 |
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| 39 | of_node_put(hyper_node);
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| 40 | return 0;
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| 41 | }
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| 42 | core_initcall(check_kvm_guest); |
| 43 | #endif
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