Commit graph

7 commits

Author SHA1 Message Date
Dylan Reid
70a8290514 Fix new warning with rust 1.21
Mutable references being declared mutable themselves is unnecessary and
now generates a warning.

Change-Id: I29c7652fb86e17a8eda21efc728dd09b726c304f
Signed-off-by: Dylan Reid <dgreid@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/717733
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
2017-10-13 14:45:07 -07:00
Dylan Reid
0584fe9fb2 Limit types that can be read from guest memory
Not all types are safe to read from guest memory.  Any type with a
reference or pointer will be initialized to random bits that don't refer
to a valid address.  This can cause dangling pointer and general
unsafe behavior.

To fix this, limit types that can be read with read_obj to those that
implement the unsafe trait `DataInit`.  Provide implementations of
`DataInit` for intrinsic types that are obviously safe to initialize
with random data.

Implement the needed traits for bootparam types as they are read from
the kernel image directly.

Change-Id: I1040f5bc1b2fc4c58c87d8a2ce3f618edcf6f9b1
Signed-off-by: Dylan Reid <dgreid@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/540750
Reviewed-by: Zach Reizner <zachr@chromium.org>
2017-06-27 00:20:33 -07:00
Dylan Reid
b2ae5fabd3 x86_64: Remove extra closure args and double-derefs
A few places were passing a reference to a reference, which just gets
compiled out anyways.

Some other places where passing `|e| ErrorName(e)` as a closure when
just `ErrorName` would be more succinct.

Change-Id: Ic097a81b956ef82b29fc1a15196c245bee61c251
Signed-off-by: Dylan Reid <dgreid@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/510782
Reviewed-by: Zach Reizner <zachr@chromium.org>
2017-05-29 21:49:05 -07:00
Zach Reizner
664bbcb970 x86_64: add multi-cpu setup support
This change includes support for setting up the Intel MP Spec v1.4 table
necessary for emulating multiprocessor x86 systems.

BUG=None
TEST=cargo test

Change-Id: I02ffce49dc9eecfc98f56e5bc6ac009b3e680e27
Reviewed-on: https://chromium-review.googlesource.com/514349
Commit-Ready: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Tested-by: Dylan Reid <dgreid@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2017-05-25 22:51:15 -07:00
Dylan Reid
d4eaa4056f sys_util: Add guest_memory
Add a module for accessing guest memory.
This module will replace all the slices that are used to access it
currently as those slices aren't valid because the memory is volatile
and a volatile slice doesn't exist in rust.

Modify the existing users so they no longer depend on the deprecated slice
access.

Change-Id: Ic0e86dacf66f68bd88ed9cc197cb14e45ada891d
Signed-off-by: Dylan Reid <dgreid@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/509919
2017-05-25 22:51:14 -07:00
Dylan Reid
67030be903 x86_64: Add x86_64 setup code
Change-Id: Ibdf83f8efcc92bf1f45ed9a5f95117fd9ae3ad5a
Reviewed-on: https://chromium-review.googlesource.com/483868
Commit-Ready: Dylan Reid <dgreid@chromium.org>
Tested-by: Dylan Reid <dgreid@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2017-05-12 20:58:07 -07:00
Dylan Reid
abd3707450 x86_64: Add bootparams.rs
created from bindgen bootparams.h then run rustfmt

Change-Id: I46fde6aefefb13db5f5bd79378eb17598cf890ec
Reviewed-on: https://chromium-review.googlesource.com/490908
Commit-Ready: Dylan Reid <dgreid@chromium.org>
Tested-by: Dylan Reid <dgreid@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
2017-05-11 22:27:38 -07:00