diff options
author | Peter Maydell <peter.maydell@linaro.org> | 2019-02-01 14:55:42 +0000 |
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committer | Peter Maydell <peter.maydell@linaro.org> | 2019-02-01 14:55:42 +0000 |
commit | d847ca5128351ea3be3a92be74d7bac74e59f048 (patch) | |
tree | d82a8b4ee8624268a2e65f8c83f1210ab7ab6b0e /include/hw/arm | |
parent | 91c1e9fcbd7548db3687db946a778b8f34d1343c (diff) |
hw/arm/armsse: Give each CPU its own view of memory
Give each CPU its own container memory region. This is necessary
for two reasons:
* some devices are instantiated one per CPU and the CPU sees only
its own device
* since a memory region can only be put into one container, we must
give each armv7m object a different MemoryRegion as its 'memory'
property, or a dual-CPU configuration will assert on realize when
the second armv7m object tries to put the MR into a container when
it is already in the first armv7m object's container
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190121185118.18550-13-peter.maydell@linaro.org
Diffstat (limited to 'include/hw/arm')
-rw-r--r-- | include/hw/arm/armsse.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/hw/arm/armsse.h b/include/hw/arm/armsse.h index faf5dfed25..89f19a971f 100644 --- a/include/hw/arm/armsse.h +++ b/include/hw/arm/armsse.h @@ -135,7 +135,17 @@ typedef struct ARMSSE { IoTKitSysCtl sysctl; IoTKitSysCtl sysinfo; + /* + * 'container' holds all devices seen by all CPUs. + * 'cpu_container[i]' is the view that CPU i has: this has the + * per-CPU devices of that CPU, plus as the background 'container' + * (or an alias of it, since we can only use it directly once). + * container_alias[i] is the alias of 'container' used by CPU i+1; + * CPU 0 can use 'container' directly. + */ MemoryRegion container; + MemoryRegion container_alias[SSE_MAX_CPUS - 1]; + MemoryRegion cpu_container[SSE_MAX_CPUS]; MemoryRegion alias1; MemoryRegion alias2; MemoryRegion alias3; |