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9210 remove KMDB branch debugging support
9211 ::crregs could do with cr2/cr3 support
9209 ::ttrace should be able to filter by thread
Reviewed by: Patrick Mooney <patrick.mooney@joyent.com>
Reviewed by: Yuri Pankov <yuripv@yuripv.net>

@@ -19,17 +19,17 @@
  * 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
 
-#pragma ident   "%Z%%M% %I%     %E% SMI"
-
 #ifndef _ASM
 #include <sys/types.h>
 #include <sys/segments.h>
 #include <sys/regset.h>
 #include <sys/privregs.h>

@@ -53,15 +53,10 @@
 
 #define KDIREG_DRCTL_WPALLEN_MASK       0x000000ff
 #define KDIREG_DRSTAT_RESERVED          0xffff0ff0
 #define KDIREG_DRCTL_RESERVED           0x00000700
 
-#define KDI_MSR_READ            0x1     /* read during entry (unlimited) */
-#define KDI_MSR_WRITE           0x2     /* write during exit (unlimited) */
-#define KDI_MSR_WRITEDELAY      0x4     /* write after last branch (<= 1) */
-#define KDI_MSR_CLEARENTRY      0x3     /* clear before 1st branch (<= 1) */
-
 #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

@@ -84,22 +79,10 @@
         greg_t                  dr_ctl;
         greg_t                  dr_stat;
         greg_t                  dr_addr[KDI_MAXWPIDX + 1];
 } kdi_drreg_t;
 
-typedef struct kdi_msr {
-        uint_t          msr_num;
-        uint_t          msr_type;
-        union {
-                uint64_t *_msr_valp;
-                uint64_t _msr_val;
-        } _u;
-} kdi_msr_t;
-
-#define kdi_msr_val     _u._msr_val
-#define kdi_msr_valp    _u._msr_valp
-
 /*
  * Data structure used to hold all of the state for a given CPU.
  */
 typedef struct kdi_cpusave {
         greg_t                  *krs_gregs;     /* saved registers */

@@ -109,12 +92,10 @@
         user_desc_t             *krs_gdt;       /* GDT address */
         gate_desc_t             *krs_idt;       /* IDT address */
 
         greg_t                  krs_cr0;        /* saved %cr0 */
 
-        kdi_msr_t               *krs_msr;       /* ptr to MSR save area */
-
         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 */