sonicyang opened a new pull request #411: Flat address x86_64 port of Nuttx URL: https://github.com/apache/incubator-nuttx/pull/411 This is a flat address mode port of Nuttx to x86_64. It consists the following features: * Runs in x86_64 long mode. * Configurable SSE/AVX support. * IRQs are managed by LAPIC(X2APIC) and IOAPIC. * Used TSC_DEADLINE or APIC timer for systick. * Pages are now maps the kernel at 4GB~, but changeable. This kernel with ostest have been tested with * Qemu/KVM on a Xeon 2630v4 machine. * Bochs with broadwell_ult emulation.
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