Commit Graph

12 Commits

Author SHA1 Message Date
Rob Bradford
ae66a44d26 vmm: Support both reset and shutdown
Add a 2nd EventFd to the VM to control resetting (rebooting) the VM this
supplements the EventFd used for managing shutdown of the VM.

The default behaviour on i8042 or triple-fault based reset is currently
unchanged i.e. it will trigger a shutdown.

In order to support restarting the VM it was necessary to make start()
function take a reference to the config.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2019-09-03 19:18:49 +02:00
Rob Bradford
ebe8edd423 devices: i8042: Use error! macro
Now that we have the logging infrastructure in place there is no need to
use println!

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2019-09-03 19:18:49 +02:00
Sebastien Boeuf
658c076eb2 linters: Fix clippy issues
Latest clippy version complains about our existing code for the
following reasons:

- trait objects without an explicit `dyn` are deprecated
- `...` range patterns are deprecated
- lint `clippy::const_static_lifetime` has been renamed to
  `clippy::redundant_static_lifetimes`
- unnecessary `unsafe` block
- unneeded return statement

All these issues have been fixed through this patch, and rustfmt has
been run to cleanup potential formatting errors due to those changes.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2019-08-15 09:10:04 -07:00
Rob Bradford
d9a355f85a vmm: Add new "null" serial/console output mode
Poor performance was observed when booting kernels with "console=ttyS0"
and the serial port disabled.

This change introduces a "null" console output mode and makes it the
default for the serial console. In this case the serial port
is advertised as per other output modes but there is no input and any
output is dropped.

Fixes: #163

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2019-08-09 09:04:48 -07:00
Rob Bradford
9caad7394d build, misc: Bump vmm-sys-util dependency
The structure of the vmm-sys-util crate has changed with lots of code
moving to submodules.

This change adjusts the use of the imported structs to reference the
submodules.

Fixes: #145

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2019-08-02 07:42:20 -07:00
Rob Bradford
224f77500c devices: serial: Make the serial unit tests pass
Some refactoring has taken place since the unit tests were written:

The read/write in BusDevice now take a base address and the interrupt
handling code has changed necessitating the need for a new TestInterrupt
struct.

Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2019-07-16 17:09:05 +02:00
Samuel Ortiz
8173e1ccd7 devices: Extend the Bus trait to carry the device range base
With the range base for the IO/MMIO vm exit address, a device with
multiple ranges has all the needed information for resolving which of
its range the exit is coming from

Fixes: #87

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2019-07-08 07:39:21 +02:00
Sebastien Boeuf
c8c4a4d444 devices: Create Interrupt trait to abstract interrupt delivery
This commit anticipate the future need from having support for both
in kernel and userspace IOAPIC. The way to signal an interrupt from
the serial device will vary depending on the use case, but this should
be independent from the serial implementation itself.

That's why this patch provides a generic trait for the serial device
to call from, so that it can trigger interrupts independently from the
IOAPIC type chosen (in kernel vs userspace).

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2019-06-21 10:09:34 +02:00
Rob Bradford
ce1d90c15b devices: legacy: Fix rustfmt issue
Signed-off-by: Rob Bradford <robert.bradford@intel.com>
2019-05-10 16:32:39 +02:00
Samuel Ortiz
040ea5432d cloud-hypervisor: Add proper licensing
Add the BSD and Apache license.
Make all crosvm references point to the BSD license.
Add the right copyrights and identifier to our VMM code.
Add Intel copyright to the vm-virtio and pci crates.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2019-05-09 15:44:17 +02:00
Sebastien Boeuf
342bdc3619 devices: Add support for i8042 reset device
Introduce emulation of i8042 device to allow the guest to stop the
VM by issuing a reset event.

The device has been copied over from the Crosvm code base, relying on
the commit 0268e26e1ac9e09aa51d733482c5df139cd8d588.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
2019-05-08 08:55:00 +02:00
Samuel Ortiz
1853b350ee cloud-hypervisor: Add devices crate
Based on the Firecracker devices crate from commit 9cdb5b2.

It is a trimmed down version compared to the Firecracker one, to remove
a bunch of pulled dependencies (logger, metrics, rate limiter, etc...).

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2019-05-08 08:40:42 +02:00