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kern: implement revised IPI/SGI semantics

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Michael Scire 2022-03-22 23:02:10 -07:00 • committed by SciresM
parent 9d89835ff8
commit ff07ba4201
9 changed files with 103 additions and 20 deletions
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10
libraries/libmesosphere/include/mesosphere/kern_select_cpu.hpp
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@ -67,6 +67,16 @@ namespace ams::kern {
return mask;
}();
static constexpr inline u64 ConvertVirtualCoreMaskToPhysical(u64 v_core_mask) {
u64 p_core_mask = 0;
while (v_core_mask != 0) {
const u64 next = __builtin_ctzll(v_core_mask);
v_core_mask &= ~(static_cast<u64>(1) << next);
p_core_mask |= (static_cast<u64>(1) << cpu::VirtualToPhysicalCoreMap[next]);
}
return p_core_mask;
}
}
static_assert(cpu::NumCores <= cpu::NumVirtualCores);