[Qemu-devel] [6161] CRIS: Dont flush kernel protected pages when modifying $pid.

[Edgar E. Iglesias]

Revision: 6161
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6161
Author:   edgar_igl
Date:     2009-01-04 15:45:17 +0000 (Sun, 04 Jan 2009)

Log Message:
-----------
CRIS: Dont flush kernel protected pages when modifying $pid.

Signed-off-by: Edgar E. Iglesias <address@hidden>

Modified Paths:
--------------
    trunk/target-cris/mmu.c

Modified: trunk/target-cris/mmu.c
===================================================================
--- trunk/target-cris/mmu.c     2009-01-04 15:42:04 UTC (rev 6160)
+++ trunk/target-cris/mmu.c     2009-01-04 15:45:17 UTC (rev 6161)
@@ -295,7 +295,7 @@
        unsigned int idx;
        uint32_t lo, hi;
        uint32_t tlb_vpn;
-       int tlb_pid, tlb_g, tlb_v, tlb_k;
+       int tlb_pid, tlb_g, tlb_v;
        unsigned int set;
        unsigned int mmu;
 
@@ -311,11 +311,8 @@
                                tlb_pid = EXTRACT_FIELD(hi, 0, 7);
                                tlb_g  = EXTRACT_FIELD(lo, 4, 4);
                                tlb_v = EXTRACT_FIELD(lo, 3, 3);
-                               tlb_k = EXTRACT_FIELD(lo, 2, 2);
 
-                               /* Kernel protected areas need to be flushed
-                                  as well.  */
-                               if (tlb_v && !tlb_g && (tlb_pid == pid || 
tlb_k)) {
+                               if (tlb_v && !tlb_g && (tlb_pid == pid)) {
                                        vaddr = tlb_vpn << TARGET_PAGE_BITS;
                                        D(fprintf(logfile,
                                                  "flush pid=%x vaddr=%x\n",