Messages in this thread | | | Date | Tue, 09 Sep 2014 02:21:20 -0400 | From | Jon Masters <> | Subject | Re: [PATCH v3 13/17] ARM64 / ACPI: Add GICv2 specific ACPI boot support |
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On 09/03/2014 06:30 AM, Marc Zyngier wrote: > On 02/09/14 16:45, Hanjun Guo wrote:
>> This value is for max processors entries in MADT, and we will use it to scan MADT >> for SMP/GIC Init, I just make it big enough for GICv3/4. since ACPI core will stop >> scan MADT if the real numbers of processors entries are reached no matter >> how big ACPI_MAX_GICV3_CPU_INTERFACE_ENTRIES is, I think we can just >> define a number big enough then it will work (x86 and ia64 did the same thing). > > Also, with GICv3++, there is no such thing as a memory-mapped CPU > interface anymore. What you get is a bunch of redistributors (one per > CPU). I assume what you have here actually describe the redistributors, > and its name should reflect that.
(though you could have a GICv3/v4 system providing a legacy GICv2(m) compatibility mode having the CPU memory interfaces still defined)
Jon.
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