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authorPeter Maydell <peter.maydell@linaro.org>2014-02-26 17:20:04 +0000
committerPeter Maydell <peter.maydell@linaro.org>2014-02-26 17:20:04 +0000
commit4b7fff2fabeaa3d13e23b249b855f39f0921048d (patch)
treebab91564652eb92f18b13ea08e71a5895b5fd285
parent327ed10fa2331384c1a58c794e0356e6d88089c8 (diff)
downloadqemu-arm-4b7fff2fabeaa3d13e23b249b855f39f0921048d.tar.gz
target-arm: Implement AArch64 MPIDR
Implement the AArch64 MPIDR system register. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
-rw-r--r--target-arm/helper.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/target-arm/helper.c b/target-arm/helper.c
index 9dcdf8ee2c..de70a92350 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -1435,7 +1435,8 @@ static uint64_t mpidr_read(CPUARMState *env, const ARMCPRegInfo *ri)
{
CPUState *cs = CPU(arm_env_get_cpu(env));
uint32_t mpidr = cs->cpu_index;
- /* We don't support setting cluster ID ([8..11])
+ /* We don't support setting cluster ID ([8..11]) (known as Aff1
+ * in later ARM ARM versions), or any of the higher affinity level fields,
* so these bits always RAZ.
*/
if (arm_feature(env, ARM_FEATURE_V7MP)) {
@@ -1450,7 +1451,8 @@ static uint64_t mpidr_read(CPUARMState *env, const ARMCPRegInfo *ri)
}
static const ARMCPRegInfo mpidr_cp_reginfo[] = {
- { .name = "MPIDR", .cp = 15, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 5,
+ { .name = "MPIDR", .state = ARM_CP_STATE_BOTH,
+ .opc0 = 3, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 5,
.access = PL1_R, .readfn = mpidr_read, .type = ARM_CP_NO_MIGRATE },
REGINFO_SENTINEL
};