diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2011-03-22 12:16:16 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2011-06-22 15:02:08 +0000 |
| commit | 74594c9d813e4d14e9c16cc71824d8905bedc19d (patch) | |
| tree | c8bf7a0dffbcc6db04bafb63c87a2fcbb090c969 /target-arm/machine.c | |
| parent | b501b5e461fbf3f5c6cd91c8c933e6f4de627bee (diff) | |
target-arm: Minimal implementation of performance counters
Newer Linux kernels assume the existence of the performance counter
cp15 registers. Provide a minimal implementation of these registers.
We support no events. This should be compliant with the ARM ARM,
except that we don't implement the cycle counter.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-arm/machine.c')
| -rw-r--r-- | target-arm/machine.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/target-arm/machine.c b/target-arm/machine.c index a18b7dc67f..7d4fc545a6 100644 --- a/target-arm/machine.c +++ b/target-arm/machine.c @@ -44,6 +44,12 @@ void cpu_save(QEMUFile *f, void *opaque) qemu_put_be32(f, env->cp15.c7_par); qemu_put_be32(f, env->cp15.c9_insn); qemu_put_be32(f, env->cp15.c9_data); + qemu_put_be32(f, env->cp15.c9_pmcr); + qemu_put_be32(f, env->cp15.c9_pmcnten); + qemu_put_be32(f, env->cp15.c9_pmovsr); + qemu_put_be32(f, env->cp15.c9_pmxevtyper); + qemu_put_be32(f, env->cp15.c9_pmuserenr); + qemu_put_be32(f, env->cp15.c9_pminten); qemu_put_be32(f, env->cp15.c13_fcse); qemu_put_be32(f, env->cp15.c13_context); qemu_put_be32(f, env->cp15.c13_tls1); @@ -152,6 +158,12 @@ int cpu_load(QEMUFile *f, void *opaque, int version_id) env->cp15.c7_par = qemu_get_be32(f); env->cp15.c9_insn = qemu_get_be32(f); env->cp15.c9_data = qemu_get_be32(f); + env->cp15.c9_pmcr = qemu_get_be32(f); + env->cp15.c9_pmcnten = qemu_get_be32(f); + env->cp15.c9_pmovsr = qemu_get_be32(f); + env->cp15.c9_pmxevtyper = qemu_get_be32(f); + env->cp15.c9_pmuserenr = qemu_get_be32(f); + env->cp15.c9_pminten = qemu_get_be32(f); env->cp15.c13_fcse = qemu_get_be32(f); env->cp15.c13_context = qemu_get_be32(f); env->cp15.c13_tls1 = qemu_get_be32(f); |