kvm_isadep.c revision 0a47c91c895e274dd0990009919e30e984364a8b
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra/*
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra * CDDL HEADER START
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra *
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra * The contents of this file are subject to the terms of the
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra * Common Development and Distribution License (the "License").
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra * You may not use this file except in compliance with the License.
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra *
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra * or http://www.opensolaris.org/os/licensing.
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra * See the License for the specific language governing permissions
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra * and limitations under the License.
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra *
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra * When distributing Covered Code, include this CDDL HEADER in each
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra * If applicable, add the following below this CDDL HEADER, with the
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra * fields enclosed by brackets "[]" replaced with your own identifying
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra * information: Portions Copyright [yyyy] [name of copyright owner]
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra *
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra * CDDL HEADER END
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra */
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra/*
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra * Use is subject to license terms.
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra */
d17b05b6ba5ce4569b13b250fe44164219de8c53Jerry Jelinek/*
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra * Copyright (c) 2012, Joyent, Inc. All rights reserved.
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra */
de710d24d2fae4468e64da999e1d952a247f142cJosef 'Jeff' Sipek
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra/*
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra * Libkvm Kernel Target Intel component
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra *
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra * This file provides the Intel-dependent portion of the libkvm kernel target.
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra * For more details on the implementation refer to mdb_kvm.c.
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra */
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra#include <mdb/mdb_target_impl.h>
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra#include <mdb/mdb_kreg_impl.h>
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra#include <mdb/mdb_errno.h>
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra#include <mdb/mdb_err.h>
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra#include <mdb/mdb_kvm.h>
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra#include <mdb/mdb_ks.h>
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra#include <mdb/mdb.h>
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra#include <mdb/kvm_isadep.h>
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra#include <sys/cpuvar.h>
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra#include <sys/privmregs.h>
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misraint
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misrakt_getareg(mdb_tgt_t *t, mdb_tgt_tid_t tid,
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra const char *rname, mdb_tgt_reg_t *rp)
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra{
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra const mdb_tgt_regdesc_t *rdp;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra kt_data_t *kt = t->t_data;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra if (tid != kt->k_tid)
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra return (set_errno(EMDB_NOREGS));
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra for (rdp = kt->k_rds; rdp->rd_name != NULL; rdp++) {
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra if (strcmp(rname, rdp->rd_name) == 0) {
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra *rp = kt->k_regs->kregs[rdp->rd_num];
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra if (rdp->rd_flags & MDB_TGT_R_32)
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra *rp &= 0xffffffffULL;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra else if (rdp->rd_flags & MDB_TGT_R_16)
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra *rp &= 0xffffULL;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra else if (rdp->rd_flags & MDB_TGT_R_8H)
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra *rp = (*rp & 0xff00ULL) >> 8;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra else if (rdp->rd_flags & MDB_TGT_R_8L)
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra *rp &= 0xffULL;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra return (0);
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra }
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra }
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra return (set_errno(EMDB_BADREG));
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra}
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misraint
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misrakt_putareg(mdb_tgt_t *t, mdb_tgt_tid_t tid, const char *rname, mdb_tgt_reg_t r)
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra{
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra const mdb_tgt_regdesc_t *rdp;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra kt_data_t *kt = t->t_data;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra if (tid != kt->k_tid)
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra return (set_errno(EMDB_NOREGS));
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra for (rdp = kt->k_rds; rdp->rd_name != NULL; rdp++) {
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra if (strcmp(rname, rdp->rd_name) == 0) {
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra if (rdp->rd_flags & MDB_TGT_R_32)
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra r &= 0xffffffffULL;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra else if (rdp->rd_flags & MDB_TGT_R_16)
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra r &= 0xffffULL;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra else if (rdp->rd_flags & MDB_TGT_R_8H)
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra r = (r & 0xffULL) << 8;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra else if (rdp->rd_flags & MDB_TGT_R_8L)
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra r &= 0xffULL;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra kt->k_regs->kregs[rdp->rd_num] = (kreg_t)r;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra return (0);
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra }
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra }
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra return (set_errno(EMDB_BADREG));
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra}
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misraint
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misrakt_kvmregs(mdb_tgt_t *t, uint_t cpuid, mdb_tgt_gregset_t *kregs)
d3d50737e566cade9a08d73d2af95105ac7cd960Rafael Vanoni{
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra kt_data_t *kt = t->t_data;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra privmregs_t mregs;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra int ret;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra if ((ret = kt->k_kb_ops->kb_getmregs(kt->k_cookie, cpuid, &mregs)) != 0)
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra return (ret);
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra kt_regs_to_kregs(&mregs.pm_gregs, kregs);
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra return (0);
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra}
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misrastatic int
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misrakt_cpu2cpuid(uintptr_t cpup)
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra{
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra cpu_t cpu;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra if (mdb_vread(&cpu, sizeof (cpu_t), cpup) != sizeof (cpu_t))
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra return (-1);
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra return (cpu.cpu_id);
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra}
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misraint
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misrakt_cpustack(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra{
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra mdb_tgt_t *t = mdb.m_target;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra mdb_tgt_gregset_t regs;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra intptr_t cpuid = 0;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra uint_t verbose = 0;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra int i;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra if (flags & DCMD_ADDRSPEC) {
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra if ((cpuid = kt_cpu2cpuid(addr)) < 0) {
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra (void) set_errno(EMDB_NOMAP);
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra mdb_warn("failed to find cpuid for cpu at %p", addr);
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra return (DCMD_ERR);
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra }
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra flags &= ~DCMD_ADDRSPEC;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra }
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra i = mdb_getopts(argc, argv,
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra 'c', MDB_OPT_UINTPTR, &cpuid,
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra 'v', MDB_OPT_SETBITS, 1, &verbose,
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra NULL);
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra argc -= i;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra argv += i;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra if (kt_kvmregs(t, cpuid, &regs) != 0) {
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra mdb_warn("failed to get regs for cpu %d\n", cpuid);
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra return (DCMD_ERR);
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra }
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra /*
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra * Tell the stack walker that we have regs.
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra */
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra flags |= DCMD_ADDRSPEC;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra addr = regs.kregs[KREG_FP];
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra if (verbose)
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra return (kt_stackv(addr, flags, argc, argv));
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra else
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra return (kt_stack(addr, flags, argc, argv));
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra}
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra/*ARGSUSED*/
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misraint
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misrakt_cpuregs(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra{
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra mdb_tgt_t *t = mdb.m_target;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra mdb_tgt_gregset_t regs;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra intptr_t cpuid = 0;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra int i;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra if (flags & DCMD_ADDRSPEC) {
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra if (argc != 0)
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra return (DCMD_USAGE);
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra if ((cpuid = kt_cpu2cpuid(addr)) < 0) {
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra (void) set_errno(EMDB_NOMAP);
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra mdb_warn("failed to find cpuid for cpu at %p", addr);
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra return (DCMD_ERR);
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra }
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra }
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra i = mdb_getopts(argc, argv,
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra 'c', MDB_OPT_UINTPTR, &cpuid,
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra NULL);
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra argc -= i;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra argv += i;
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra if (argc != 0)
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra return (DCMD_USAGE);
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra if (kt_kvmregs(t, cpuid, &regs) != 0) {
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra mdb_warn("failed to get regs for cpu %d\n", cpuid);
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra return (DCMD_ERR);
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra }
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra return (kt_regs((uintptr_t)&regs, flags, argc, argv));
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra}
dbed73cbda2229fd1aa6dc5743993cae7f0a7ee9Sangeeta Misra