| commit | 4efdc6fb89614a2e3f52459c41ce60132e29b025 | [log] [tgz] |
|---|---|---|
| author | Abdulla Kamar <abdulla@google.com> | Sun Dec 02 10:28:45 2018 +1100 |
| committer | CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> | Mon Dec 03 03:09:20 2018 +0000 |
| tree | f566e0a9614b0ae724da72e88a2fb4b2b2810d0e | |
| parent | 30d23726852156e50d7a847357dfea7f31263768 [diff] |
[arm][gic] Change EOImode to separate deactivation Set the EOImode so that EOIR only drops the priority, and DIR is required to deactivate the interrupt. This allows the hypervisor to correctly take control of physical interrupts, without affecting operation of the host. In addition, this updates the boot-shim for mt8167s to enable the use of GICC_DIR, which is located 64k from the GICC base. The first page of GICC is mapped repeatedly into the the first 64k. MAC-180 Test: Test: Ran on a VIM2 (for GICv2) and QEMU (for GICv3). Change-Id: I7fd2baaa2d230f6652ced32a02807f0d8fad2f79
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.