Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20140912' into staging

target-arm:
 * add "linux,stdout-path" to the virt DTB
 * fix a long standing bug with IRQ disabling on Cortex-M CPUs
 * implement input interrupt logic in the PL061
 * fix failure to load correct SP/PC on reset of Cortex-M CPUs
   if the vector table is not in a ROM-blob-in-RAM
 * provide flash devices for boot ROMs in the virt board
 * implement architectural watchpoints
 * fix misimplementation of Inner Shareable TLB operations that
   caused instability of guests in TCG SMP configurations
 * configure PL011 and PL031 in the virt board correctly with
   level-triggered interrupts rather than edge-triggered
 * support providing a device tree blob to ROM (firmware)
   images as well as to kernels

# gpg: Signature made Fri 12 Sep 2014 14:19:08 BST using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"

* remotes/pmaydell/tags/pull-target-arm-20140912: (23 commits)
  hw/arm/boot: enable DTB support when booting ELF images
  hw/arm/boot: load device tree to base of DRAM if no -kernel option was passed
  hw/arm/boot: pass an address limit to and return size from load_dtb()
  hw/arm/boot: load DTB as a ROM image
  hw/arm/virt: fix pl011 and pl031 irq flags
  target-arm: Make *IS TLB maintenance ops affect all CPUs
  target-arm: Push legacy wildcard TLB ops back into v6
  target-arm: Implement minimal DBGVCR, OSDLR_EL1, MDCCSR_EL0
  target-arm: Remove comment about MDSCR_EL1 being dummy implementation
  target-arm: Set DBGDSCR.MOE for debug exceptions taken to AArch32
  target-arm: Implement handling of fired watchpoints
  target-arm: Move extended_addresses_enabled() to internals.h
  target-arm: Implement setting of watchpoints
  cpu-exec: Make debug_excp_handler a QOM CPU method
  exec.c: Record watchpoint fault address and direction
  exec.c: Provide full set of dummy wp remove functions in user-mode
  exec.c: Relax restrictions on watchpoint length and alignment
  hw/arm/virt: Provide flash devices for boot ROMs
  target-arm: Fix broken indentation in arm_cpu_reest()
  target-arm: Fix resetting issues on ARMv7-M CPUs
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 5 insertions, 12 deletions

diff --git a/cpu-exec.c b/cpu-exec.c
index 7b5d2e21d0..bd93165209 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -295,16 +295,10 @@ static inline TranslationBlock *tb_find_fast(CPUArchState *env)
     return tb;
 }
 
-static CPUDebugExcpHandler *debug_excp_handler;
-
-void cpu_set_debug_excp_handler(CPUDebugExcpHandler *handler)
-{
-    debug_excp_handler = handler;
-}
-
 static void cpu_handle_debug_exception(CPUArchState *env)
 {
     CPUState *cpu = ENV_GET_CPU(env);
+    CPUClass *cc = CPU_GET_CLASS(cpu);
     CPUWatchpoint *wp;
 
     if (!cpu->watchpoint_hit) {
@@ -312,9 +306,8 @@ static void cpu_handle_debug_exception(CPUArchState *env)
             wp->flags &= ~BP_WATCHPOINT_HIT;
         }
     }
-    if (debug_excp_handler) {
-        debug_excp_handler(env);
-    }
+
+    cc->debug_excp_handler(cpu);
 }
 
 /* main execution loop */
@@ -618,8 +611,8 @@ int cpu_exec(CPUArchState *env)
                        We avoid this by disabling interrupts when
                        pc contains a magic address.  */
                     if (interrupt_request & CPU_INTERRUPT_HARD
-                        && ((IS_M(env) && env->regs[15] < 0xfffffff0)
-                            || !(env->daif & PSTATE_I))) {
+                        && !(env->daif & PSTATE_I)
+                        && (!IS_M(env) || env->regs[15] < 0xfffffff0)) {
                         cpu->exception_index = EXCP_IRQ;
                         cc->do_interrupt(cpu);
                         next_tb = 0;