Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20190129' into staging

target-arm queue:
 * Fix validation of 32-bit address spaces for aa32 (fixes an assert introduced in ba97be9f4a4)
 * v8m: Ensure IDAU is respected if SAU is disabled
 * gdbstub: fix gdb_get_cpu(s, pid, tid) when pid and/or tid are 0
 * exec.c: Use correct attrs in cpu_memory_rw_debug()
 * accel/tcg/user-exec: Don't parse aarch64 insns to test for read vs write
 * target/arm: Don't clear supported PMU events when initializing PMCEID1
 * memory: add memory_region_flush_rom_device()
 * microbit: Add stub NRF51 TWI magnetometer/accelerometer detection
 * tests/microbit-test: extend testing of microbit devices
 * checkpatch: Don't emit spurious warnings about block comments
 * aspeed/smc: misc bug fixes
 * xlnx-zynqmp: Don't create rpu-cluster if there are no RPUs
 * xlnx-zynqmp: Realize cluster after putting RPUs in it
 * accel/tcg: Add cluster number to TCG TB hash so differently configured
   CPUs don't pick up cached TBs for the wrong kind of CPU

# gpg: Signature made Tue 29 Jan 2019 11:59:10 GMT
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20190129: (23 commits)
  gdbstub: Simplify gdb_get_cpu_pid() to use cpu->cluster_index
  accel/tcg: Add cluster number to TCG TB hash
  qom/cpu: Add cluster_index to CPUState
  hw/arm/xlnx-zynqmp: Realize cluster after putting RPUs in it
  aspeed/smc: snoop SPI transfers to fake dummy cycles
  aspeed/smc: Add dummy data register
  aspeed/smc: define registers for all possible CS
  aspeed/smc: fix default read value
  xlnx-zynqmp: Don't create rpu-cluster if there are no RPUs
  checkpatch: Don't emit spurious warnings about block comments
  tests/microbit-test: Check nRF51 UART functionality
  tests/microbit-test: Make test independent of global_qtest
  tests/libqtest: Introduce qtest_init_with_serial()
  memory: add memory_region_flush_rom_device()
  target/arm: Don't clear supported PMU events when initializing PMCEID1
  MAINTAINERS: update microbit ARM board files
  accel/tcg/user-exec: Don't parse aarch64 insns to test for read vs write
  exec.c: Use correct attrs in cpu_memory_rw_debug()
  tests/microbit-test: add TWI stub device test
  arm: Stub out NRF51 TWI magnetometer/accelerometer detection
  ...

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

1 files changed, 18 insertions, 0 deletions

diff --git a/include/exec/memory.h b/include/exec/memory.h
index cd2f209b64..abe9cc79c0 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -1345,6 +1345,24 @@ void memory_region_reset_dirty(MemoryRegion *mr, hwaddr addr,
                                hwaddr size, unsigned client);
 
 /**
+ * memory_region_flush_rom_device: Mark a range of pages dirty and invalidate
+ *                                 TBs (for self-modifying code).
+ *
+ * The MemoryRegionOps->write() callback of a ROM device must use this function
+ * to mark byte ranges that have been modified internally, such as by directly
+ * accessing the memory returned by memory_region_get_ram_ptr().
+ *
+ * This function marks the range dirty and invalidates TBs so that TCG can
+ * detect self-modifying code.
+ *
+ * @mr: the region being flushed.
+ * @addr: the start, relative to the start of the region, of the range being
+ *        flushed.
+ * @size: the size, in bytes, of the range being flushed.
+ */
+void memory_region_flush_rom_device(MemoryRegion *mr, hwaddr addr, hwaddr size);
+
+/**
  * memory_region_set_readonly: Turn a memory region read-only (or read-write)
  *
  * Allows a memory region to be marked as read-only (turning it into a ROM).