[Qemu-devel] [PATCH 0/4] Fix incorrect use of tb_invalidate_phys_page_range by target-xtensa

[Max Filippov]

Avi reported [1] that target-xtensa incorrectly supply virtual addresses
to tb_invalidate_phys_page_range. Currently there's no way to invalidate
all cached TBs at the given virtual address in softmmu mode. As a shortcut
solution I translate virtual address to physical address using guest TLB
and reuse most of breakpoint_invalidate() code to invalidate TB at that
physical address.

This series is extracted from my recent xtensa pull request, build of
usermode targets is fixed.

[1] http://lists.gnu.org/archive/html/qemu-devel/2012-03/msg03572.html

Max Filippov (4):
  exec: provide tb_invalidate_phys_addr function
  target-xtensa: fix tb invalidation for IBREAK and LOOP
  target-xtensa: add tests for LBEG/LEND invalidation
  target-xtensa: add test for IBREAK invalidation

 exec-all.h                    |    1 +
 exec.c                        |    9 +++++--
 target-xtensa/op_helper.c     |   29 ++++++++++++++---------
 target-xtensa/translate.c     |    2 +
 tests/tcg/xtensa/test_break.S |   34 +++++++++++++++++++++++++++
 tests/tcg/xtensa/test_loop.S  |   50 +++++++++++++++++++++++++++++++++++++++++
 6 files changed, 111 insertions(+), 14 deletions(-)

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1.7.7.6