From 871480933a1c28f8a9fed4c4d34d06c439a7a422 Mon Sep 17 00:00:00 2001 From: Srikant Patnaik Date: Sun, 11 Jan 2015 12:28:04 +0530 Subject: Moved, renamed, and deleted files The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure. --- arch/x86/kernel/cpu/hypervisor.c | 78 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 arch/x86/kernel/cpu/hypervisor.c (limited to 'arch/x86/kernel/cpu/hypervisor.c') diff --git a/arch/x86/kernel/cpu/hypervisor.c b/arch/x86/kernel/cpu/hypervisor.c new file mode 100644 index 00000000..755f64fb --- /dev/null +++ b/arch/x86/kernel/cpu/hypervisor.c @@ -0,0 +1,78 @@ +/* + * Common hypervisor code + * + * Copyright (C) 2008, VMware, Inc. + * Author : Alok N Kataria + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + */ + +#include +#include +#include + +/* + * Hypervisor detect order. This is specified explicitly here because + * some hypervisors might implement compatibility modes for other + * hypervisors and therefore need to be detected in specific sequence. + */ +static const __initconst struct hypervisor_x86 * const hypervisors[] = +{ +#ifdef CONFIG_XEN_PVHVM + &x86_hyper_xen_hvm, +#endif + &x86_hyper_vmware, + &x86_hyper_ms_hyperv, +}; + +const struct hypervisor_x86 *x86_hyper; +EXPORT_SYMBOL(x86_hyper); + +static inline void __init +detect_hypervisor_vendor(void) +{ + const struct hypervisor_x86 *h, * const *p; + + for (p = hypervisors; p < hypervisors + ARRAY_SIZE(hypervisors); p++) { + h = *p; + if (h->detect()) { + x86_hyper = h; + printk(KERN_INFO "Hypervisor detected: %s\n", h->name); + break; + } + } +} + +void __cpuinit init_hypervisor(struct cpuinfo_x86 *c) +{ + if (x86_hyper && x86_hyper->set_cpu_features) + x86_hyper->set_cpu_features(c); +} + +void __init init_hypervisor_platform(void) +{ + + detect_hypervisor_vendor(); + + if (!x86_hyper) + return; + + init_hypervisor(&boot_cpu_data); + + if (x86_hyper->init_platform) + x86_hyper->init_platform(); +} -- cgit