Commit graph

7 commits

Author SHA1 Message Date
Tristan Muntsinger
4133b0120d crosvm: x86_64 guest support for android device-tree
This device tree is derived from the Android fstab file which is
provided via command line flag.

BUG=chromium:922737
TEST=None
CQ-DEPEND=CL:1415390
CQ-DEPEND=CL:1415270

Change-Id: Idd007c844f84cab3ff37be16a718f14e5f630312
Reviewed-on: https://chromium-review.googlesource.com/1370058
Commit-Ready: Daniel Verkamp <dverkamp@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2019-01-28 14:17:10 -08:00
David Tolnay
1d4d44a8e2 sync: Mutex type with methods that panic instead of return error
This CL adds a crate `sync` containing a type sync::Mutex which wraps
the standard library Mutex and mirrors the same methods, except that
they panic where the standard library would return a PoisonError. This
API codifies our error handling strategy around poisoned mutexes in
crosvm.

- Crosvm releases are built with panic=abort so poisoning never occurs.
  A panic while a mutex is held (or ever) takes down the entire process.
  Thus we would like for code not to have to consider the possibility of
  poison.

- We could ask developers to always write `.lock().unwrap()` on a
  standard library mutex. However, we would like to stigmatize the use
  of unwrap. It is confusing to permit unwrap but only on mutex lock
  results. During code review it may not always be obvious whether a
  particular unwrap is unwrapping a mutex lock result or a different
  error that should be handled in a more principled way.

Developers should feel free to use sync::Mutex anywhere in crosvm that
they would otherwise be using std::sync::Mutex.

TEST=boot linux

Change-Id: I9727b6f8fee439edb4a8d52cf19d59acf04d990f
Reviewed-on: https://chromium-review.googlesource.com/1359923
Commit-Ready: David Tolnay <dtolnay@chromium.org>
Tested-by: David Tolnay <dtolnay@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-12-05 01:13:41 -08:00
Daniel Verkamp
56f283b297 Revert "Revert "linux: Convert all virtio devices to PCI""
This reverts commit c8986f14a8.

Re-land the virtio PCI conversion after the preceding fixes.

BUG=chromium:854766
TEST=Boot crosvm on nami and kevin

Change-Id: I3699e3ed1a45cecc99c51e352d0cf0c32bc4116f
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1265862
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2018-10-12 23:07:16 -07:00
Daniel Verkamp
c8986f14a8 Revert "linux: Convert all virtio devices to PCI"
This reverts commit d635acbaf3.

This commit seems to be responsible for introducing hung tasks in tests,
so let's revert it for now to get the tests green and debug it offline.

BUG=chromium:891806
TEST=None

Change-Id: I83504058baeae00909d9fb4f4bb704a144a0dfaf
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1259408
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2018-10-04 00:37:22 -07:00
Daniel Verkamp
d635acbaf3 linux: Convert all virtio devices to PCI
Change the main create_virtio_devs() function to create virtio devices
using the PCI transport rather than MMIO.

BUG=chromium:854766
TEST=Boot crosvm and verify that all virtio devices still work

Change-Id: I9a6e60b21edea1e5ac2b3ae5c91793d45cf5063a
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1241541
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2018-10-02 09:17:25 -07:00
Dylan Reid
ef7352f208 Remove the device manager and use the new resource allocator
Allow IRQs to be assigned before creating device manager.

For PCI, we need to add devices with interrupts before MMIO setup. Add
the ability to tell the architecture device manager about IRQs that we
have stolen.

There was only one function in device_manager and all of its state is
now delegated to the resource allocator, remove it.

Change-Id: I9afa0e3081a20cb024551ef18ae34fe76a1ef39d
Reviewed-on: https://chromium-review.googlesource.com/1089720
Commit-Ready: Dylan Reid <dgreid@chromium.org>
Tested-by: Dylan Reid <dgreid@chromium.org>
Reviewed-by: Sonny Rao <sonnyrao@chromium.org>
2018-06-29 17:50:17 -07:00
Sonny Rao
2ffa0cbe5b crosvm: aarch64 guest support
- removes old ARMv7a (32-bit) bindings as we're only supporting aarch64
  guests right now
- switches both ARMv7 and aarch64 builds to use aarch64 kvm bindings
- adds support for ARMv8 Linux guest with dynamic flattened-device-tree

CQ-DEPEND=990894
BUG=chromium:797868
TEST=./build_test passes on all architectures
TEST=crosvm runs on caroline
TEST=crosvm runs on kevin built with USE="kvm_host"

Change-Id: I7fc4fc4017ed87fd23a1bc50e3ebb05377040006
Reviewed-on: https://chromium-review.googlesource.com/969987
Commit-Ready: Sonny Rao <sonnyrao@chromium.org>
Tested-by: Sonny Rao <sonnyrao@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-04-03 12:50:37 -07:00