Commit Graph

674 Commits

Author SHA1 Message Date
Stefan Kalkowski
907de9d37f hw: move timer into board.h
Unify the generic timer implementation for ARMv7 and ARMv8.

Ref #3445
2019-08-13 12:02:26 +02:00
Stefan Kalkowski
5c7436bf10 hw: remove SMP variable from board.h
Whether an SoC has the multiprocessing extensions can be read out
from the identification registers, and does not need to be specified
in each board header.

Ref #3445
2019-08-13 12:02:26 +02:00
Stefan Kalkowski
0b77e8ea62 hw: consistently move cpu into board namespace
Ref #3445
2019-08-13 12:02:26 +02:00
Stefan Kalkowski
875858b2cc hw: integrate interrupt controllers into board.h
Additionally, unify more implementation details in between different
usage patterns of ARM's generic interrupt controller (v2)

Ref #3445
2019-08-13 12:02:26 +02:00
Martin Stein
b87e21a392 base-hw: EFI sys-table pointer in platform info
Ref #3430
2019-08-13 12:02:03 +02:00
Christian Helmuth
17d32b3e15 depot: update recipe hashes 2019-07-09 09:06:54 +02:00
Stefan Kalkowski
186c35bb09 depot: recipe for base-hw-rpi3
Ref #3407
2019-07-09 08:55:23 +02:00
Stefan Kalkowski
90d07741aa hw: support for ARM64 Raspberry Pi 3
Restriction: enables only cpu core 0 and the timer interrupt by now.

Fix #3405
2019-07-09 08:55:22 +02:00
Stefan Kalkowski
87015df66c hw: change update_pd to invalidate_tlb
In the past, the core-only privileged syscall `update_pd` was used only
to invalidate the TLB after removal of page-table entries.
By now, the whole TLB at least for one protection domain got invalidated,
but in preparation for optimization and upcomingARM v8 support,
it is necessary to deliver the virtual memory region that needs to get
invalidated. Moreover, the name of the call shall represent explicitely
that it is used to invalidate the TLB.

Ref #3405
2019-07-09 08:55:22 +02:00
Stefan Kalkowski
d9a0f76e7a hw: extend long-descriptor page table format
Ref #3405
2019-07-09 08:55:22 +02:00
Christian Helmuth
3c4c460f82 depot: update recipe hashes 2019-06-13 13:40:37 +02:00
Christian Helmuth
2b183f9497 depot: update recipe hashes 2019-05-29 10:20:52 +02:00
Sebastian Sumpf
cec050983a hw: [[fallthrough]] annotations for ARM/RISC-V
* double checked

issue #3377
2019-05-29 10:20:52 +02:00
Sebastian Sumpf
d417d26ce8 hw: fix calculation of CPU count on x86_64
On x86 the CPU count is determined through ACPI's MADT by counting the
local APICs reported there. Some platforms report more APICs
than there are actual CPUs. These might be physically disabled CPUs.
Therefore, a check if the LAPIC is actually physically enabled in
hardware fixes this issue.

Thanks to Alex Boettcher

fixes #3376
2019-05-29 10:20:52 +02:00
Sebastian Sumpf
5611020f33 hw: fix stack alignment in bootstrap for x86_64
Fix initial stack pointer alignment for x86_64 in crt0.s startup code of
bootstrap. SysV ABI states that upon function entry (rsp + 8) % 16 = 0.
There, we have to align the stack to 16 bytes before all 'call'
instruction not 8. Otherwise FPU (GP) exception might be raised later on
because of unaligned FPU accesses.

issue #3365
2019-05-29 10:20:52 +02:00
Sebastian Sumpf
da17f2cbd3 hw: eager FPU switching for x86_64
Since gcc 8.3.0 generates SSE instructions into kernel code, the
kernel itself may raise FPU exceptions and/or corrupt user level FPU
contexts thereby. Both things are not feasible, and therefore, lazy FPU
switching becomes a no go for base-hw because we cannot avoid FPU
instructions because of the entanglement of base-hw, base, and the tool
chain (libgcc_eh.a).

issue #3365
2019-05-27 14:53:32 +02:00
Stefan Kalkowski
6d8d6b5552 hw: disable alignment checking at earliest
Fix #3370
2019-05-27 14:52:52 +02:00
Sebastian Sumpf
f18285205c hw: enable FPU during CPU startup on x86
Also disable TS (task switch) flag in cr0 during kernel initialization,
so FPU faults are not raised. This became necessary since GCC lately
aggressively generates FPU instructions at arbitrary places and also at
early kernel-bootstrapping stages.

fixes #3365
2019-05-27 14:52:52 +02:00
Christian Prochaska
4fc3eca4aa base-hw: fix compile errors with GCC 8.3.0
Fixes #3326
2019-05-27 14:46:54 +02:00
Stefan Kalkowski
5c77ebb1fb hw: factor out x86 specific bootinfo
Ref #3326
2019-05-27 14:46:54 +02:00
Stefan Kalkowski
054df95ea4 hw: unify board definitions of bootstrap/core
Ref #3326
2019-05-27 14:46:54 +02:00
Adrian-Ken Rueegsegger
d131e537e9 Update Muen port
- Drop unnecessary patch
- Improved build speed/parallelization
- Increased log channel size
- Fix path in base-hw/Muen documentation
2019-05-27 14:46:53 +02:00
Stefan Kalkowski
a1e70b9ba4 kernel: differentiate board-specific components
Components like kernel, core, and bootstrap that are built for a
specific board need to reside inside the same architectural dependent
build directory. For instance there are sel4, foc, and hw kernel builds
for imx6q_sabrelite and imx7d_sabre, which have to reside inside the same
arm_v7 build directory.
This commit names those components explicitely, and adapts the run-tool to it.

Fix #3316
2019-05-27 14:46:52 +02:00
Stefan Kalkowski
c43267dbaa tool: deprecate board-specific build directories
* Introduces BOARD variable to determine actual board
* Removes formerly deprecated kernel-specific build directories

The following boards are available:

arm_v6: rpi
arm_v7a: arndale, imx53_qsb, imx53_qsb_tz, imx6q_sabrelite, imx7d_sabre,
         nit6_solox, odroid_x2, odroid_xu, panda, pbxa9, usb_armory,
         wand_quad, zynq_qemu
x86_64: pc, linux, muen
x86_32: pc, linux
riscv:  spike

Ref #3316
2019-05-27 14:46:29 +02:00
Stefan Kalkowski
13fb51eecf hw: remove implicit SoC-specific include path
Fix #3336
2019-05-16 13:11:02 +02:00
Christian Helmuth
ba51800b31 depot: update recipe hashes 2019-05-06 16:15:27 +02:00
Stefan Kalkowski
f42c21f16b platform_info: add kernel information (fix #3295) 2019-05-06 16:15:26 +02:00
Alexander Boettcher
05fa063068 vm_session: support to trace vCPU
Issue #3111
2019-05-06 16:15:26 +02:00
Martin Stein
181c78d482 timeout: use uint64_t for all plain time values
This enforces the use of unsigned 64-bit values for time in the duration type,
the timeout framework, the timer session, the userland timer-drivers, and the
alarm framework on all platforms. The commit also adapts the code that uses
these tools accross all basic repositories (base, base-*, os. gems, libports,
ports, dde_*) to use unsigned 64-bit values for time as well as far as this
does not imply profound modifications.

Fixes #3208
2019-05-06 16:15:26 +02:00
Stefan Kalkowski
e072ee480b depot: add recipe for base-hw-imx7d_sabre
Fix #3293
2019-05-06 16:15:26 +02:00
Alexander Boettcher
393643515c base: extend attach of vm_session
by offset, size, writeable and executable parameter

Issue #3111
2019-05-06 16:15:25 +02:00
Stefan Kalkowski
f074954d3d hw: use eret in hyp mode to switch mode
Instead of using `cps` instruction, use an exception return
instruction to switch from `hyp` mode to `svc` mode.
Otherwise it causes unpredicted behaviour on ARM.

Fix #3284
2019-05-06 16:15:25 +02:00
Alexander Boettcher
d2229ab381 vm_session: evaluate priority
Issue #3111
2019-05-06 16:15:25 +02:00
Alexander Boettcher
450c8dc149 vm_session: track dataspaces used by attach
Track the dataspaces used by attach and add handling of flushing VM space
when dataspace gets destroyed (not triggered via the vm_session interface).

Issue #3111
2019-05-06 16:15:25 +02:00
Christian Helmuth
6ea1179145 depot: update recipe hashes 2019-04-09 12:30:35 +02:00
Stefan Kalkowski
a147bdf406 hw: silent warning about unknown signal context
Triggering of an invalidated signal seems to be no real exception,
but something that occurs regularily. Therefore, the kernel warning
is of no use to developers anymore.

Ref #3277
2019-04-09 12:30:35 +02:00
Stefan Kalkowski
0ca199f89a hw: replace lock-safe log variants in kernel
As far as possible remove usage of warning/error/log in the kernel,
otherwise the kernel context might try to take a lock hold by a core
thread, which results in a syscall to block.

Fix #3277
2019-04-09 12:30:35 +02:00
Alexander Boettcher
ae16edf1d6 trace: support more facets of execution time
- execution time per thread context
- execution time per scheduling context
- quantum and priority

Issue #3192
2019-04-09 12:30:34 +02:00
Norman Feske
d027f12764 depot: update recipe hashes 2019-04-02 09:36:39 +02:00
Stefan Kalkowski
935abb55b7 hw: move src/lib/hw header to src/include/hw
* Remove bad style of using `src/lib` as include path

Fix #3244
2019-04-01 19:33:51 +02:00
Stefan Kalkowski
baf815d099 hw: add support for i.MX7 Dual SABRE board
Fix #3251
2019-04-01 19:33:49 +02:00
Stefan Kalkowski
8f28f884ee hw: name vm_state header explicitely
Ref #3251
2019-04-01 19:33:49 +02:00
Stefan Kalkowski
3725e91603 hw: implement power-saving kernel lock for ARM smp
Thanks to former work of Martin Stein this commit finally incorporates a
non-spinning kernel lock on multi-core ARM platforms.

Fix #1313
2019-04-01 19:33:47 +02:00
Stefan Kalkowski
e9b3569f44 hw: remove overall cache maintainance from core
This functionality is only needed in bootstrap now that kernel and
userland share the same address-space.

Fix #2699
2019-04-01 19:33:46 +02:00
Christian Helmuth
ebe71a12ed depot: update recipe hashes 2019-03-19 11:12:36 +01:00
Stefan Kalkowski
822a6e7c5f hw_riscv: strictly separate machine and syscall ids
Fix #3230
2019-03-18 15:56:59 +01:00
Martin Stein
ff2516deb2 hw: fix documentation of Kernel::update_pd
Add note that the calling thread must not be destroyed while in the syscall.

Fixes #1253
2019-03-18 15:56:59 +01:00
Stefan Kalkowski
330692350e hw: introduce non-blocking signal checking
* Introduces pending_signal syscall to check for new signals for the
  calling thread without blocking
* Implements pending_signal in the base-library specific for hw to use the
  new syscall

Fix #3217
2019-03-18 15:56:24 +01:00
Stefan Kalkowski
80fa23da5e hw: increase timing accuracy of kernel (fix #3081)
* Introduce 64-bit tick counter
* Let the timer always count when possible, also if it already fired
* Simplify the kernel syscall API to have one current time call,
  which returns the elapsed microseconds since boot
2019-03-18 15:56:23 +01:00
Stefan Kalkowski
2ecf1d887b hw: schedule on demand (Fix #3157) 2019-03-18 15:56:23 +01:00