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| author | Julian Brown <julian@codesourcery.com> | 2017-02-07 18:29:59 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2017-02-07 18:29:59 +0000 |
| commit | 40612000599e52e792d23c998377a0fa429c4036 (patch) | |
| tree | 8549aae95f252fb42907a2e7678fed6fc6b4605e /include | |
| parent | f7478a92dd9ee2276bfaa5b7317140d3f9d6a53b (diff) | |
| download | qemu-40612000599e52e792d23c998377a0fa429c4036.zip qemu-40612000599e52e792d23c998377a0fa429c4036.tar.gz qemu-40612000599e52e792d23c998377a0fa429c4036.tar.bz2 | |
arm: Correctly handle watchpoints for BE32 CPUs
In BE32 mode, sub-word size watchpoints can fail to trigger because the
address of the access is adjusted in the opcode helpers before being
compared with the watchpoint registers. This patch reverses the address
adjustment before performing the comparison with the help of a new CPUClass
hook.
This version of the patch augments and tidies up comments a little.
Signed-off-by: Julian Brown <julian@codesourcery.com>
Message-id: caaf64ffc72f6ae183015337b7afdbd4b8989cb6.1484929304.git.julian@codesourcery.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/qom/cpu.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/qom/cpu.h b/include/qom/cpu.h index ca4d0fb..45bcf21 100644 --- a/include/qom/cpu.h +++ b/include/qom/cpu.h @@ -132,6 +132,8 @@ struct TranslationBlock; * @cpu_exec_exit: Callback for cpu_exec cleanup. * @cpu_exec_interrupt: Callback for processing interrupts in cpu_exec. * @disas_set_info: Setup architecture specific components of disassembly info + * @adjust_watchpoint_address: Perform a target-specific adjustment to an + * address before attempting to match it against watchpoints. * * Represents a CPU family or model. */ @@ -195,6 +197,7 @@ typedef struct CPUClass { bool (*cpu_exec_interrupt)(CPUState *cpu, int interrupt_request); void (*disas_set_info)(CPUState *cpu, disassemble_info *info); + vaddr (*adjust_watchpoint_address)(CPUState *cpu, vaddr addr, int len); } CPUClass; #ifdef HOST_WORDS_BIGENDIAN |