Commit graph

9 commits

Author SHA1 Message Date
Michael LeMay 73774def6b x86, galileo: Add sample non-driver protection domain
This patch adds a simple non-driver protection domain sample to serve
as an example for defining other non-driver protection domains.  It
simply performs a ping-pong test of protection domain switching
latency during boot, including optional accesses to a private metadata
region, and prints out the results.
2016-04-22 08:16:43 -07:00
Michael LeMay 3908253038 x86: Add support for (paging-based) protection domains
This patch implements a simple, lightweight form of protection domains
using a pluggable framework.  Currently, the following plugin is
available:

 - Flat memory model with paging.

The overall goal of a protection domain implementation within this
framework is to define a set of resources that should be accessible to
each protection domain and to prevent that protection domain from
accessing other resources.  The details of each implementation of
protection domains may differ substantially, but they should all be
guided by the principle of least privilege.  However, that idealized
principle is balanced against the practical objectives of limiting the
number of relatively time-consuming context switches and minimizing
changes to existing code.

For additional information, please refer to cpu/x86/mm/README.md.

This patch also causes the C compiler to be used as the default linker
and assembler.
2016-03-21 17:18:06 -07:00
Michael LeMay e0d124c7c5 galileo: Add example to print out IMR information
This patch adds an example program to print out information about the
configuration of the Intel Quark X1000 SoC Isolated Memory Regions
(IMRs), the Host System Management Mode Controls register, and the
Host Memory I/O Boundary register.
2016-03-17 08:35:49 -07:00
Michael LeMay 1f445172ff galileo: Fix build help message in examples
This patch fixes examples/galileo/Makefile so that it actually
displays the intended help message when an unrecognized EXAMPLE is
selected.
2016-02-16 21:19:44 -08:00
Michael LeMay b82d92e373 galileo: Add I2C callbacks example
This patch adds an example for I2C callbacks that is very similar to
the i2c-LSM9DS0 example except that it uses a PWM device that is built
into the platform.
2016-02-16 21:19:44 -08:00
Ricardo de Almeida Gonzaga 77327181e0 galileo: Add GPIO interrupt example
This patch introduces an example application to demonstrate how to use
GPIO driver APIs to manipulate interrupt pins.

The application uses default galileo pinmux initialization and sets
the GPIO 5 (IO2) as output pin and GPIO 6 (IO3) as interrupt. It toggles
the output pin stat at every half second in order to emulate an interrupt.
This triggers an interrupt and the application callback is called.
2015-12-21 08:06:14 -02:00
Ricardo de Almeida Gonzaga 61e06c632a galileo: Add GPIO input example
This patch introduces an example application to demonstrate how to use
GPIO driver APIs to manipulate input pins.

The application uses default galileo pinmux initialization and sets the
GPIO 5 (IO2) as output pin and GPIO 6 (IO3) as input. It toggles the
output pin state at every half second and checks the value on input pin.
2015-12-21 08:06:14 -02:00
Ricardo de Almeida Gonzaga 7dfd753b21 galileo: Add I2C master example
This patch adds an example application that shows how to use I2C driver
APIs to communicate with LSM9DS0 sensor. At every 5 seconds, the
application reads the "Who Am I" register from gyroscope sensor and
prints if the register value matches the expected value.
2015-12-21 08:06:14 -02:00
Ricardo de Almeida Gonzaga cc51f89b31 galileo: Add GPIO output example
This patch introduces an example application to demonstrate how to use
GPIO driver APIs to manipulate output pins. The application sets the
GPIO 4 pin as output pin and toggles its state at every half second.
2015-12-21 08:06:14 -02:00