6276a074c6
Put all config options needed to run Linux as a guest behind a CONFIG_HYPERVISOR_GUEST menu so that they don't get built-in by default but be selectable by the user. Also, make all units which depend on x86_hyper, depend on this new symbol so that compilation doesn't fail when CONFIG_HYPERVISOR_GUEST is disabled but those units assume its presence. Sort options in the new HYPERVISOR_GUEST menu, adapt config text and drop redundant select. Signed-off-by: Borislav Petkov <bp@suse.de> Link: http://lkml.kernel.org/r/1362428421-9244-3-git-send-email-bp@alien8.de Cc: Dmitry Torokhov <dtor@vmware.com> Cc: K. Y. Srinivasan <kys@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
65 lines
2 KiB
C
65 lines
2 KiB
C
/*
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* Copyright (C) 2008, VMware, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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* NON INFRINGEMENT. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#ifndef _ASM_X86_HYPERVISOR_H
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#define _ASM_X86_HYPERVISOR_H
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#ifdef CONFIG_HYPERVISOR_GUEST
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#include <asm/kvm_para.h>
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#include <asm/xen/hypervisor.h>
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/*
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* x86 hypervisor information
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*/
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struct hypervisor_x86 {
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/* Hypervisor name */
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const char *name;
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/* Detection routine */
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bool (*detect)(void);
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/* Adjust CPU feature bits (run once per CPU) */
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void (*set_cpu_features)(struct cpuinfo_x86 *);
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/* Platform setup (run once per boot) */
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void (*init_platform)(void);
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/* X2APIC detection (run once per boot) */
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bool (*x2apic_available)(void);
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};
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extern const struct hypervisor_x86 *x86_hyper;
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/* Recognized hypervisors */
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extern const struct hypervisor_x86 x86_hyper_vmware;
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extern const struct hypervisor_x86 x86_hyper_ms_hyperv;
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extern const struct hypervisor_x86 x86_hyper_xen_hvm;
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extern const struct hypervisor_x86 x86_hyper_kvm;
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extern void init_hypervisor(struct cpuinfo_x86 *c);
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extern void init_hypervisor_platform(void);
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extern bool hypervisor_x2apic_available(void);
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#else
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static inline void init_hypervisor(struct cpuinfo_x86 *c) { }
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static inline void init_hypervisor_platform(void) { }
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static inline bool hypervisor_x2apic_available(void) { return false; }
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#endif /* CONFIG_HYPERVISOR_GUEST */
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#endif /* _ASM_X86_HYPERVISOR_H */
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