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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*
* Copyright 2018 Joyent, Inc.
*/
#ifndef _SYS_KDI_REGS_H
#define _SYS_KDI_REGS_H
#ifndef _ASM
#include <sys/types.h>
#include <sys/segments.h>
#include <sys/regset.h>
#include <sys/privregs.h>
#endif
#if defined(__amd64)
#include <amd64/sys/kdi_regs.h>
#elif defined(__i386)
#include <ia32/sys/kdi_regs.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
#define KDI_NCRUMBS 5
#define KDI_CPU_STATE_NONE 0
#define KDI_CPU_STATE_MASTER 1
#define KDI_CPU_STATE_SLAVE 2
#define KDIREG_DRCTL_WPALLEN_MASK 0x000000ff
#define KDIREG_DRSTAT_RESERVED 0xffff0ff0
#define KDIREG_DRCTL_RESERVED 0x00000700
#ifndef _ASM
/*
* We maintain a ring buffer of bread crumbs for debugging purposes. The
* current buffer pointer is advanced along the ring with each intercepted
* trap (debugger entry, invalid memory access, fault during step, etc).
*/
typedef struct kdi_crumb {
greg_t krm_cpu_state; /* This CPU's state at last entry */
greg_t krm_pc; /* Instruction pointer at trap */
greg_t krm_sp; /* Stack pointer at trap */
greg_t krm_trapno; /* The last trap number */
greg_t krm_flag; /* KAIF_CRUMB_F_* */
} kdi_crumb_t;
#define KDI_MAXWPIDX 3
/*
* Storage for %dr0-3, %dr6, and %dr7.
*/
typedef struct kdi_drreg {
greg_t dr_ctl;
greg_t dr_stat;
greg_t dr_addr[KDI_MAXWPIDX + 1];
} kdi_drreg_t;
/*
* Data structure used to hold all of the state for a given CPU.
*/
typedef struct kdi_cpusave {
greg_t *krs_gregs; /* saved registers */
kdi_drreg_t krs_dr; /* saved debug registers */
user_desc_t *krs_gdt; /* GDT address */
gate_desc_t *krs_idt; /* IDT address */
greg_t krs_cr0; /* saved %cr0 */
uint_t krs_cpu_state; /* KDI_CPU_STATE_* mstr/slv */
uint_t krs_cpu_flushed; /* Have caches been flushed? */
uint_t krs_cpu_id; /* this CPU's ID */
/* Bread crumb ring buffer */
ulong_t krs_curcrumbidx; /* Current krs_crumbs idx */
kdi_crumb_t *krs_curcrumb; /* Pointer to current crumb */
kdi_crumb_t krs_crumbs[KDI_NCRUMBS]; /* Crumbs */
} kdi_cpusave_t;
#endif /* !_ASM */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_KDI_REGS_H */
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