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| author | Peter Maydell <peter.maydell@linaro.org> | 2011-02-22 18:19:43 +0000 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2011-03-07 09:46:19 +0100 |
| commit | ca27c052d992da83ce0786d81f85b87cd1f5d301 (patch) | |
| tree | 4ea796f79b4bfc9b090eb6c15ed85763203fb2e2 /cpu-exec.c | |
| parent | 3849902cd852d7de0783abc41cb0c57949d567fd (diff) | |
| download | qemu-ca27c052d992da83ce0786d81f85b87cd1f5d301.zip qemu-ca27c052d992da83ce0786d81f85b87cd1f5d301.tar.gz qemu-ca27c052d992da83ce0786d81f85b87cd1f5d301.tar.bz2 | |
target-arm: Implement a minimal set of cp14 debug registers
Newer ARM kernels try to probe for whether the CPU has hardware breakpoint
support. For this to work QEMU has to implement a minimal set of the cp14
debug registers. The architecture requires v7 cores to implement debug
and so there is no defined way to report its absence; however in practice
returning a zero DBGDIDR (ie with a reserved value for "debug architecture
version") should cause well-written hw debug users to do the right thing.
We also implement DBGDRAR and DBGDSAR as RAZ, indicating no memory mapped
debug components.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'cpu-exec.c')
0 files changed, 0 insertions, 0 deletions