| commit | 7ca86dfdde03f6164f9c07a69c37d3aea961406d | [log] [tgz] |
|---|---|---|
| author | John Bauman <jbauman@google.com> | Thu Jan 24 16:33:59 2019 -0800 |
| committer | CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> | Thu Jan 31 00:00:16 2019 +0000 |
| tree | bef59a5b38c6ecbf46862faf735ec4ea89d5b2e5 | |
| parent | 94247af08e062dba8418807cb24d33f246bd81b8 [diff] |
[sysmem][astro] Allocate protected memory region on boot Use metadata to specify the size of a protected memory region, which will be created using contigous memory. Portions of that memory region can be handed out to clients as requested. Currently the memory isn't actually marked as protected using the TEE, so it's no different from regular memory. Also convert the query of the current VID and PID to read from the sysmem metadata, as pdev_get_device_info gets information about the current device, which always PDEV_VID_GENERIC and PDEV_PID_GENERIC for sysmem. Test: vkcube on astro Change-Id: I681f928ccde4e4d99787d2b0853e19ed9b9eaab0
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
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.