| commit | b15008a1c98d67111fcd24598d86efce64a0b4fb | [log] [tgz] |
|---|---|---|
| author | Abdulla Kamar <abdulla@google.com> | Sat Oct 14 15:28:22 2017 +1100 |
| committer | Abdulla Kamar <abdulla@google.com> | Mon Oct 16 13:52:14 2017 +1100 |
| tree | 1db2025b17a513c3ad38c9e1dd125c58c9c9eaaf | |
| parent | 50d7f9fb1422cff647d614b12e49b4d877b0ae5f [diff] |
[hypervisor] Require explicit trap for local APIC. We no longer create the trap within the kernel, but require it to be set from user-space. However, we specialise this trap, so that we map the APIC page within the address space, allowing for hardware acceleration when possible. Change-Id: I91efcc4e91e94d3934278be64c01a7b1a695a8d8
Zircon is the core platform that powers the Fuchsia OS. Zircon is composed of a microkernel (source in kernel/...) as well as a small set of userspace services, drivers, and libraries (source in system/...) necessary for the system to boot, talk to hardware, load userspace processes and run them, etc. Fuchsia builds a much larger OS on top of this foundation.
The canonical Zircon Git repository is located at: https://fuchsia.googlesource.com/zircon
A read-only mirror of the code is present at: https://github.com/fuchsia-mirror/zircon
The Zircon Kernel provides syscalls to manage processes, threads, virtual memory, inter-process communication, waiting on object state changes, and locking (via futexes).
Currently there are some temporary syscalls that have been used for early bringup work, which will be going away in the future as the long term syscall API/ABI surface is finalized. The expectation is that there will be about 100 syscalls.
Zircon syscalls are generally non-blocking. The wait_one, wait_many port_wait and thread sleep being the notable exceptions.
This page is a non-comprehensive index of the zircon documentation.