293ab7c941
address space on the amd64 architecture. The amd64 architecture requires kernel code and global variables to reside in the highest 2GB of the 64-bit virtual address space. Thus, KERNBASE cannot change. However, KERNBASE is sometimes used as the start of the kernel virtual address space. Henceforth, VM_MIN_KERNEL_ADDRESS should be used instead. Since KERNBASE and VM_MIN_KERNEL_ADDRESS are still the same address, there should be no visible effect from this change (yet).
92 lines
3.0 KiB
C
92 lines
3.0 KiB
C
/*-
|
|
* Copyright (c) 2003-2007 Joseph Koshy
|
|
* Copyright (c) 2007 The FreeBSD Foundation
|
|
* All rights reserved.
|
|
*
|
|
* Portions of this software were developed by A. Joseph Koshy under
|
|
* sponsorship from the FreeBSD Foundation and Google, Inc.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/* Machine dependent interfaces */
|
|
|
|
#ifndef _MACHINE_PMC_MDEP_H
|
|
#define _MACHINE_PMC_MDEP_H 1
|
|
|
|
#include <dev/hwpmc/hwpmc_amd.h>
|
|
#include <dev/hwpmc/hwpmc_piv.h>
|
|
|
|
union pmc_md_op_pmcallocate {
|
|
struct pmc_md_amd_op_pmcallocate pm_amd;
|
|
struct pmc_md_p4_op_pmcallocate pm_p4;
|
|
uint64_t __pad[4];
|
|
};
|
|
|
|
/* Logging */
|
|
#define PMCLOG_READADDR PMCLOG_READ64
|
|
#define PMCLOG_EMITADDR PMCLOG_EMIT64
|
|
|
|
#ifdef _KERNEL
|
|
|
|
union pmc_md_pmc {
|
|
struct pmc_md_amd_pmc pm_amd;
|
|
struct pmc_md_p4_pmc pm_p4;
|
|
};
|
|
|
|
struct pmc;
|
|
|
|
#define PMC_TRAPFRAME_TO_PC(TF) ((TF)->tf_rip)
|
|
#define PMC_TRAPFRAME_TO_FP(TF) ((TF)->tf_rbp)
|
|
#define PMC_TRAPFRAME_TO_SP(TF) ((TF)->tf_rsp)
|
|
|
|
#define PMC_AT_FUNCTION_PROLOGUE_PUSH_BP(I) \
|
|
(((I) & 0xffffffff) == 0xe5894855) /* pushq %rbp; movq %rsp,%rbp */
|
|
#define PMC_AT_FUNCTION_PROLOGUE_MOV_SP_BP(I) \
|
|
(((I) & 0x00ffffff) == 0x00e58948) /* movq %rsp,%rbp */
|
|
#define PMC_AT_FUNCTION_EPILOGUE_RET(I) \
|
|
(((I) & 0xFF) == 0xC3) /* ret */
|
|
|
|
#define PMC_IN_TRAP_HANDLER(PC) \
|
|
((PC) >= (uintptr_t) start_exceptions && \
|
|
(PC) < (uintptr_t) end_exceptions)
|
|
|
|
#define PMC_IN_KERNEL_STACK(S,START,END) \
|
|
((S) >= (START) && (S) < (END))
|
|
#define PMC_IN_KERNEL(va) (((va) >= DMAP_MIN_ADDRESS && \
|
|
(va) < DMAP_MAX_ADDRESS) || ((va) >= VM_MIN_KERNEL_ADDRESS && \
|
|
(va) < VM_MAX_KERNEL_ADDRESS))
|
|
|
|
#define PMC_IN_USERSPACE(va) ((va) <= VM_MAXUSER_ADDRESS)
|
|
|
|
/*
|
|
* Prototypes
|
|
*/
|
|
|
|
void start_exceptions(void), end_exceptions(void);
|
|
void pmc_x86_lapic_enable_pmc_interrupt(void);
|
|
|
|
#endif
|
|
#endif /* _MACHINE_PMC_MDEP_H */
|