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174 commits

Author SHA1 Message Date
Sean Cross
d0d687a239 utra: fix build on non-hardware release 
This adds svd2utra, which enables building for non-embedded harware.

It also fixes some build issues, and paves the way for generating UTRA
at compile-time.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-05 10:13:51 +08:00
Sean Cross
d4f0496371 kernel: remove unused debug data 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-04 19:08:29 +08:00
Sean Cross
8759f552f7 kernel: syscall: allow returning to the kernel 
If nothing is running, don't crash when the timer hits.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-04 18:28:58 +08:00
Sean Cross
fa23cfa88b kernel: services: update some debug comments 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-04 18:28:29 +08:00
Sean Cross
7843189c45 kernel: remove printing of "hello, world!" 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-04 18:28:02 +08:00
Sean Cross
a00151b4de kernel: use IRQ 0 for UART 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-10-04 18:27:49 +08:00
Sean Cross
5f4ee01a0d kernel: use fixed address for debug port 
Don't use the hardware address, since it is not likely to be in
the universal address space.

Signed-off-by: Sean <xobs@ci.betrusted.io>
 2020-10-04 18:13:58 +08:00
Sean
bbab52be7f kernel: flush MMU when we rotate the SATP value 
Signed-off-by: Sean <xobs@ci.betrusted.io>
 2020-10-04 18:12:27 +08:00
bunnie
711e5ea910 slot in utra references 2020-10-02 04:52:03 +08:00
bunnie
4cded404e3 fix offset of UART 2020-09-26 01:36:45 +08:00
bunnie
44f1a6b307 Merge branch 'master' of https://github.com/betrusted-io/xous-core into dvt-hardware 2020-09-25 17:50:24 +08:00
bunnie
8cc85f4e11 mods for running on DVT hardware 2020-09-25 17:50:02 +08:00
Sean Cross
e5583a7646 kernel: fix message sender parameter 
The `sender` was, previously, somewhat mislabeled. It was a combination
of PID and TID, except when it wasn't.

Instead, make this value a combination of ConnectionID and queue index.
This makes it easier to reason about which connection we're responding
to.

Additionally, don't expose teh global Server Index Table to userspace
programs.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-09-23 10:52:22 +08:00
Sean Cross
435612a370 kernel: syscall: use new is_blocking() call 
This removes the need to manually specify whether a call is blocking.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-09-22 22:14:03 +08:00
Sean Cross
43002b8627 kernel: add blocking scalars 
Add a new type: BlockingScalar, that can be used to do blocking scalar
calls such as sleep().

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-09-22 22:05:18 +08:00
Sean Cross
6d931ccc33 kernel: irq: disable irqs during handler 
This fixes issue #1, which correctly noted the comment was correct but
the code implementation was not correct.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-09-22 21:13:56 +08:00
Sean
1b59719a74 kernel: hosted: support per-thread memory messages 
Previously, each process could return one chunk of memory. With this
change, processes can now return one chunk of memory per thread. This
enables multiple threads to lend memory to a server.

Signed-off-by: Sean <xobs@ci.betrusted.io>
 2020-09-03 13:20:16 +08:00
Sean
3e6d3904fb kernel: hosted: handle TrySendMessage the same as SendMessage 
With the introduction of TrySendMessage, the kernel needs to know that
this data structure should be transmitted over the wire in the same
manner as SendMessage. Previously it was not special-casing this, which
resulted in memory errors.

Signed-off-by: Sean <xobs@ci.betrusted.io>
 2020-09-03 13:17:01 +08:00
Sean
2dc0545eaa kernel: test: print informative error when kernel data changes 
When the message coming in from the client to a server changes, print
an informative message rather than just "left != right".

Signed-off-by: Sean <xobs@ci.betrusted.io>
 2020-09-03 13:13:44 +08:00
Sean Cross
77426aaf56 kernel: hosted: ignore errors from shutting down network socket 
When running on Linux, attempting to shut down a network socket that
has already been closed results in an error. That is, if the client
disconnects, then the server will throw an error when it also attempts
to disconnect.

Ignore errors to `.shutdown()` to fix `cargo test` on Linux.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-09-03 10:19:05 +08:00
Sean Cross
cd7f8f67fc kernel: rename Connect/SendMessage to TryConnect/TrySendMessage 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-30 17:39:29 +08:00
Sean Cross
ae6dda0ad3 kernel: fix tests after message body rename 
The test suite hadn't been updated to work with the new naming
convention.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-30 10:47:10 +08:00
Sean Cross
fbda077aff kernel: remove excess println() statements 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-30 10:46:48 +08:00
Sean Cross
96c5739cdd kernel: fix remaining warnings 
This fixes all remaining warnings in the kernel. For now.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-30 01:17:35 +08:00
Sean Cross
bc92f4b042 kernel: services: fix build on riscv 
Somehow the build broke. Oops.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-30 00:36:39 +08:00
Sean Cross
25824df335 kernel: services: print fewer diagnostic messages 
These were printed a lot, which is not a thing we want right now.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-30 00:36:11 +08:00
Sean Cross
d87b59d47c kernel: riscv: print fewer debug messages 
The IRQ handler was very noisy, which generated a lot of spew.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-30 00:35:28 +08:00
Sean Cross
9af28d0a90 kernel: irq: fix build 
We were missing some packages when building on riscv.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-30 00:34:49 +08:00
Sean Cross
b78a71c495 kernel: print-panics: implement this feature in debug.rs 
With this feature enabled, claim the kernel UART for panic printing.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-30 00:34:41 +08:00
Sean Cross
8f70c0640c kernel: fix server indexing 
Server IDs were being improperly indexed, resulting in a
probably-invalid server index being returned.

Adjust these so that correct server indices are returned.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-29 22:10:24 +08:00
Sean Cross
0ca7fe6f12 kernel/loader: fix build arguments 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-18 12:10:46 +08:00
Sean Cross
bb17038bfe kernel: rename "xous" to "xous-kernel" in import 
Cargo appears to cache packages in the workspace when multiple packages
use the same crate. Unfortunately, Xous uses different features
depending on whether it's running in the kernel or in userspace.

Pull the kernel version of "xous" in under a different namespace in
order to force it to use a different build.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-17 18:37:40 +08:00
Sean Cross
cb959eb1cf kernel: fix interrupts 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-10 22:43:38 +08:00
Sean Cross
31f63c3f5f kernel: threads work now 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-10 22:05:06 +08:00
Sean Cross
1d23bc5aae kernel: first multiple threads working 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-10 21:17:48 +08:00
Sean Cross
a467d6fcc7 kernel: baremetal: 2nd process starts to run and crashes 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-10 16:06:38 +08:00
Sean Cross
75449f1deb kernel: get PID1 running, now working on PID2 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-10 00:35:37 +08:00
Sean Cross
10ecacd136 kernel: native: create process for initial processes 
These all need to bootstrap themselves.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 23:08:54 +08:00
Sean Cross
bef0168c20 kernel: more warning fixes 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 22:14:14 +08:00
Sean Cross
ba30b4919d kernel: remove more warnings 
Still haven't run it on real hardware, but this removes more warnings
from the system.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 21:52:28 +08:00
Sean Cross
0006d4d99c kernel: get building 
This is where the story really starts...

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 21:33:21 +08:00
Sean Cross
8ccecb6d99 kernel: down to 12 errors again 
Slowly chipping away at it.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 20:59:31 +08:00
Sean Cross
299b9fc298 kernel: start working on lifetime errors 
Only about 24 errors, so it's better than it could have been.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 19:45:02 +08:00
Sean Cross
8925964754 kernel: on to lifetime issues now! 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 19:38:15 +08:00
Sean Cross
30fef020f2 baremetal: just one more build error for this phase 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 19:27:43 +08:00
Sean Cross
e7a4927943 kernel: down to 7 compile errors 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 19:21:54 +08:00
Sean Cross
9bba5cbe4d server: pass memory buffer to server init 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 19:02:05 +08:00
Sean Cross
e48e1820f6 kernel: down to 12 errors 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 18:27:18 +08:00
Sean Cross
814be7cd84 kernel: down to 29 errors on bare metal 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 16:48:58 +08:00
Sean Cross
ebf568dadd baremetal: slowly whittling down the number of errors 
Signed-off-by: Sean Cross <sean@xobs.io>
 2020-08-09 16:14:34 +08:00