Commit Graph

8 Commits

Author SHA1 Message Date
Norman Feske
cb579ec8d7 hw: minor 64-bit fixes 2015-02-16 13:40:36 +01:00
Martin Stein
be7d5b4827 hw: use context-area base that is ok for VEA9X4-TZ
On VEA9X4-TZ, the context-area overlaps with the virtual area of the
text, data and bss. However, we can't simply change the link address as
the core image (used physically respectively 1:1 mapped) needs to be in
this particular RAM-region as it is the only one that can be protected
against a VM. Thus I've moved the context area to a place where it
shouldn't disturb any HW-platform.

Fixes #1337
2015-01-07 10:41:22 +01:00
Martin Stein
9c027fd9bd hw: remove deprecated TLB declaration
fix #1320
2014-12-19 13:58:47 +01:00
Martin Stein
b8ba3a7a22 hw: rename Kernel::Processor Kernel::Cpu
Kernel::Processor was a confusing remnant from the old scheme where we had a
Processor_driver (now Genode::Cpu) and a Processor (now Kernel::Cpu).
This commit also updates the in-code documentation and the variable and
function naming accordingly.

fix #1274
2014-11-28 12:02:35 +01:00
Martin Stein
a5cf09fa6e hw: re-organize file structure
fix #1197
2014-08-15 10:19:48 +02:00
Christian Prochaska
a46de84f89 Fix race condition in page fault notification
When a page fault cannot be resolved, the GDB monitor can get a hint about
which thread faulted by evaluating the thread state object returned by
'Cpu_session::state()'. Unfortunately, with the current implementation,
the signal which informs GDB monitor about the page fault is sent before
the thread state object of the faulted thread has been updated, so it
can happen that the faulted thread cannot be determined immediately
after receiving the signal.

With this commit, the thread state gets updated before the signal is sent.

At least on base-nova it can also happen that the thread state is not
accessible yet after receiving the page fault notification. For this
reason, GDB monitor needs to retry its query until the state is
accessible.

Fixes #1206.
2014-07-24 10:18:07 +02:00
Stefan Kalkowski
786fe805da base: introduce caching attributes (fix #1184)
On ARM it's relevant to not only distinguish between ordinary cached memory
and write-combined one, but also having non-cached memory too. To insert the
appropriated page table entries e.g.: in the base-hw kernel, we need to preserve
the information about the kind of memory from allocation until the pager
resolves a page fault. Therefore, this commit introduces a new Cache_attribute
type, and replaces the write_combined boolean with the new type where necessary.
2014-06-26 10:57:26 +02:00
Norman Feske
ca971bbfd8 Move repositories to 'repos/' subdirectory
This patch changes the top-level directory layout as a preparatory
step for improving the tools for managing 3rd-party source codes.
The rationale is described in the issue referenced below.

Issue #1082
2014-05-14 16:08:00 +02:00