566a5f5020
amd64 and i386. Submitted by: Roger Pau Monné Sponsored by: Citrix Systems R&D Reviewed by: gibbs Approved by: re (blanket Xen) MFC after: 2 weeks sys/amd64/amd64/mp_machdep.c: sys/amd64/include/cpu.h: sys/i386/i386/mp_machdep.c: sys/i386/include/cpu.h: - Introduce two new CPU hooks for initialization and resume purposes. This allows us to get rid of the XENHVM ifdefs in mp_machdep, and also sets some hooks into common code that can be used by other hypervisor implementations. sys/amd64/conf/XENHVM: sys/i386/conf/XENHVM: - Remove these configs now that GENERIC has builtin support for Xen HVM. sys/kern/subr_smp.c: - Make sure there are no pending IPIs when suspending a system. sys/x86/xen/hvm.c: - Add cpu init and resume vectors that are called from mp_machdep using the new hooks. - Only clear the vcpu_info mapping data on resume. It is already clear for the BSP on a cold boot and is set correctly as APs are started. - Gate xen_hvm_init_cpu only to systems running under Xen. sys/x86/xen/xen_intr.c: - Gate the setup of event channels only to systems running under Xen.
92 lines
2.9 KiB
C
92 lines
2.9 KiB
C
/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* William Jolitz.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: @(#)cpu.h 5.4 (Berkeley) 5/9/91
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* $FreeBSD$
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*/
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#ifndef _MACHINE_CPU_H_
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#define _MACHINE_CPU_H_
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/*
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* Definitions unique to i386 cpu support.
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*/
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#include <machine/psl.h>
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#include <machine/frame.h>
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#include <machine/segments.h>
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#define cpu_exec(p) /* nothing */
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#define cpu_swapin(p) /* nothing */
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#define cpu_getstack(td) ((td)->td_frame->tf_rsp)
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#define cpu_setstack(td, ap) ((td)->td_frame->tf_rsp = (ap))
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#define cpu_spinwait() ia32_pause()
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#define TRAPF_USERMODE(framep) \
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(ISPL((framep)->tf_cs) == SEL_UPL)
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#define TRAPF_PC(framep) ((framep)->tf_rip)
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#ifdef _KERNEL
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/*
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* Struct containing pointers to CPU management functions whose
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* implementation is run time selectable. Selection can be made,
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* for example, based on detection of a particular CPU variant or
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* hypervisor environment.
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*/
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struct cpu_ops {
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void (*cpu_init)(void);
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void (*cpu_resume)(void);
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void (*ipi_vectored)(u_int, int);
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};
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extern struct cpu_ops cpu_ops;
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extern char btext[];
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extern char etext[];
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void cpu_halt(void);
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void cpu_reset(void);
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void fork_trampoline(void);
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void swi_vm(void *);
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/*
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* Return contents of in-cpu fast counter as a sort of "bogo-time"
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* for random-harvesting purposes.
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*/
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static __inline u_int64_t
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get_cyclecount(void)
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{
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return (rdtsc());
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}
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#endif
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#endif /* !_MACHINE_CPU_H_ */
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