From 0534c6e4a656d79990d81cccf402d126262bbc3b Mon Sep 17 00:00:00 2001
From: Timo Kreuzer <timo.kreuzer@reactos.org>
Date: Wed, 28 Jan 2009 23:34:04 +0000
Subject: [PATCH] KD64: implement case 0 for KdpReadControlSpace, which returns
 a pointer to the Pcr.

svn path=/branches/ros-amd64-bringup/; revision=39191
---
 reactos/ntoskrnl/kd64/kdapi.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/reactos/ntoskrnl/kd64/kdapi.c b/reactos/ntoskrnl/kd64/kdapi.c
index ce0080af69b..e5b3f106e11 100644
--- a/reactos/ntoskrnl/kd64/kdapi.c
+++ b/reactos/ntoskrnl/kd64/kdapi.c
@@ -319,16 +319,26 @@ KdpReadControlSpace(IN PDBGKD_MANIPULATE_STATE64 State,
 #if defined (_M_AMD64)
     if ((ULONG)ReadMemory->TargetBaseAddress <= 2)
     {
+        PKPRCB Prcb = KiProcessorBlock[State->Processor];
+        PKIPCR Pcr = CONTAINING_RECORD(Prcb, KIPCR, Prcb);
+
         switch ((ULONG_PTR)ReadMemory->TargetBaseAddress)
         {
+            case 0:
+                /* Copy a pointer to the Pcr */
+                ControlStart = &Pcr;
+                RealLength = sizeof(PVOID);
+                break;
+
             case 1:
-                ControlStart = &KiProcessorBlock[State->Processor];
+                /* Copy a pointer to the Prcb */
+                ControlStart = &Prcb;
                 RealLength = sizeof(PVOID);
                 break;
 
             case 2:
-                ControlStart = &KiProcessorBlock[State->Processor]->
-                                         ProcessorState.SpecialRegisters;
+                /* Copy SpecialRegisters */
+                ControlStart = &Prcb->ProcessorState.SpecialRegisters;
                 RealLength = sizeof(KSPECIAL_REGISTERS);
                 break;