Merge remote-tracking branch 'agraf/tags/signed-ppc-for-upstream' into staging

Patch queue for ppc - 2013-12-20

Alexander Graf (3):
      PPC: Use default pci bus name for grackle and heathrow
      roms: Flush icache when writing roms to guest memory
      PPC: Add VSX to hflags

Alexey Kardashevskiy (5):
      powerpc: add PVR mask support
      target-ppc: move POWER7+ to a separate family
      spapr-rtas: replace return code constants with macros
      spapr-rtas: add ibm, (get|set)-system-parameter
      spapr: make sure RMA is in first mode of first memory node

Greg Kurz (1):
      target-ppc: add stubs for KVM breakpoints

Paolo Bonzini (1):
      spapr: tie spapr-nvram to -pflash

Paul Mackerras (1):
      spapr: limit numa memory regions by ram size

Peter Crosthwaite (2):
      device_tree: s/qemu_devtree/qemu_fdt globally
      device_tree: qemu_fdt_setprop: Rename val_array arg

Tom Musta (19):
      Declare and Enable VSX
      Add MSR VSX and Associated Exception
      Add VSX Instruction Decoders
      Add VSR to Global Registers
      Add lxvd2x
      Add stxvd2x
      Add xxpermdi
      Add lxsdx
      Add lxvdsx
      Add lxvw4x
      Add stxsdx
      Add stxvw4x
      Add VSX Scalar Move Instructions
      Add VSX Vector Move Instructions
      Add Power7 VSX Logical Instructions
      Add xxmrgh/xxmrgl
      Add xxsel
      Add xxspltw
      Add xxsldwi

* agraf/tags/signed-ppc-for-upstream: (32 commits)
  spapr: limit numa memory regions by ram size
  spapr: make sure RMA is in first mode of first memory node
  device_tree: qemu_fdt_setprop: Rename val_array arg
  device_tree: s/qemu_devtree/qemu_fdt globally
  PPC: Add VSX to hflags
  Add xxsldwi
  Add xxspltw
  Add xxsel
  Add xxmrgh/xxmrgl
  Add Power7 VSX Logical Instructions
  Add VSX Vector Move Instructions
  Add VSX Scalar Move Instructions
  roms: Flush icache when writing roms to guest memory
  spapr: tie spapr-nvram to -pflash
  PPC: Use default pci bus name for grackle and heathrow
  spapr-rtas: add ibm, (get|set)-system-parameter
  spapr-rtas: replace return code constants with macros
  target-ppc: move POWER7+ to a separate family
  Add stxvw4x
  Add stxsdx
  ...

1 files changed, 39 insertions, 5 deletions

diff --git a/exec.c b/exec.c
index 00526d18c0..7e49e8e555 100644
--- a/exec.c
+++ b/exec.c
@@ -50,6 +50,7 @@
 #include "translate-all.h"
 
 #include "exec/memory-internal.h"
+#include "qemu/cache-utils.h"
 
 #include "qemu/range.h"
 
@@ -2070,9 +2071,13 @@ void cpu_physical_memory_rw(hwaddr addr, uint8_t *buf,
     address_space_rw(&address_space_memory, addr, buf, len, is_write);
 }
 
-/* used for ROM loading : can write in RAM and ROM */
-void cpu_physical_memory_write_rom(hwaddr addr,
-                                   const uint8_t *buf, int len)
+enum write_rom_type {
+    WRITE_DATA,
+    FLUSH_CACHE,
+};
+
+static inline void cpu_physical_memory_write_rom_internal(
+    hwaddr addr, const uint8_t *buf, int len, enum write_rom_type type)
 {
     hwaddr l;
     uint8_t *ptr;
@@ -2091,8 +2096,15 @@ void cpu_physical_memory_write_rom(hwaddr addr,
             addr1 += memory_region_get_ram_addr(mr);
             /* ROM/RAM case */
             ptr = qemu_get_ram_ptr(addr1);
-            memcpy(ptr, buf, l);
-            invalidate_and_set_dirty(addr1, l);
+            switch (type) {
+            case WRITE_DATA:
+                memcpy(ptr, buf, l);
+                invalidate_and_set_dirty(addr1, l);
+                break;
+            case FLUSH_CACHE:
+                flush_icache_range((uintptr_t)ptr, (uintptr_t)ptr + l);
+                break;
+            }
         }
         len -= l;
         buf += l;
@@ -2100,6 +2112,28 @@ void cpu_physical_memory_write_rom(hwaddr addr,
     }
 }
 
+/* used for ROM loading : can write in RAM and ROM */
+void cpu_physical_memory_write_rom(hwaddr addr,
+                                   const uint8_t *buf, int len)
+{
+    cpu_physical_memory_write_rom_internal(addr, buf, len, WRITE_DATA);
+}
+
+void cpu_flush_icache_range(hwaddr start, int len)
+{
+    /*
+     * This function should do the same thing as an icache flush that was
+     * triggered from within the guest. For TCG we are always cache coherent,
+     * so there is no need to flush anything. For KVM / Xen we need to flush
+     * the host's instruction cache at least.
+     */
+    if (tcg_enabled()) {
+        return;
+    }
+
+    cpu_physical_memory_write_rom_internal(start, NULL, len, FLUSH_CACHE);
+}
+
 typedef struct {
     MemoryRegion *mr;
     void *buffer;