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authorFrederic Konrad <konrad.frederic@yahoo.fr>2025-05-26 10:55:21 +0200
committerPeter Maydell <peter.maydell@linaro.org>2025-06-16 11:26:25 +0100
commit6559e7ad8e535b70e34c79076e6cb6c09d626d0d (patch)
tree6f3bc1ab02dea1084130fb386fba3c4996933cf2 /include/hw
parent5dc8e4e892ba10e040d12afece0d36b8b6a269d6 (diff)
downloadfocaccia-qemu-6559e7ad8e535b70e34c79076e6cb6c09d626d0d.tar.gz
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hw/intc/arm_gic: introduce a first-cpu-index property
This introduces a first-cpu-index property to the arm-gic, as some SOCs
could have two separate GIC (ie: the zynqmp).

Signed-off-by: Clément Chigot <chigot@adacore.com>
Message-id: 20250526085523.809003-3-chigot@adacore.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: slightly expanded comment documenting GIC property]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include/hw')
-rw-r--r--include/hw/intc/arm_gic.h3
-rw-r--r--include/hw/intc/arm_gic_common.h2
2 files changed, 5 insertions, 0 deletions
diff --git a/include/hw/intc/arm_gic.h b/include/hw/intc/arm_gic.h
index 48f6a51a70..be923f7ed8 100644
--- a/include/hw/intc/arm_gic.h
+++ b/include/hw/intc/arm_gic.h
@@ -27,6 +27,9 @@
  *    implement the security extensions
  *  + QOM property "has-virtualization-extensions": set true if the GIC should
  *    implement the virtualization extensions
+ *  + QOM property "first-cpu-index": index of the first cpu attached to the
+ *    GIC (default 0). The CPUs connected to the GIC are assumed to be
+ *    first-cpu-index, first-cpu-index + 1, ... first-cpu-index + num-cpu - 1.
  *  + unnamed GPIO inputs: (where P is number of SPIs, i.e. num-irq - 32)
  *    [0..P-1]  SPIs
  *    [P..P+31] PPIs for CPU 0
diff --git a/include/hw/intc/arm_gic_common.h b/include/hw/intc/arm_gic_common.h
index 97fea4102d..93a3cc2bf8 100644
--- a/include/hw/intc/arm_gic_common.h
+++ b/include/hw/intc/arm_gic_common.h
@@ -129,6 +129,8 @@ struct GICState {
     uint32_t num_lrs;
 
     uint32_t num_cpu;
+    /* cpu_index of the first CPU, attached to this GIC.  */
+    uint32_t first_cpu_index;
 
     MemoryRegion iomem; /* Distributor */
     /* This is just so we can have an opaque pointer which identifies