Support for automatic detection of serial PCI cards and their I/O ports on x86 #4
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Performed in 'slow_trapentry'. Was 'fix_exception_ip.patch'.
Restrict the appliance of ERRATA 743622 to CPU revisions: r2p0-r2p2. Was 'foc_arm_errata.patch'
The syscall l4_task_cap_equal almost returns false although the referenced kernel-objects are equal. This patch changes the semantic of the syscall so that whenever two capabilities refering the same kernel-object are compared it will return true. Please refer to the discussion of the following mail thread: http://www.mail-archive.com/l4-hackers@os.inf.tu-dresden.de/msg05162.html Was 'foc_caps_equal.patch'
Return true if thread is ready. Was: 'foc_exregs_ret_state.patch'
This patch enables the user land to use the CPU's single stepping mode on x86_32 platforms. It is needed to enable the use of GDB monitor for user-level debugging. Was: 'foc_single_step_x86.patch'
Was: 'imx53_support.patch'
Increase the size of the JDB kernel object names buffer. The original size was too small for some Genode scenarios and caused missing thread names in the kernel debugger thread list. Was: 'jdb_kobject_names.patch'
In sigma0 normally no answer tag to a request/fault is created. It simply uses the message tag received with the request. This doesn't work out when I/O ports are requested. This patch constructs an appropriate answer tag. Moreover, we have to enable I/O port protection in the kernel configuration. Was: 'sigma0_ioport.patch'
When sigma0 runs on a lower priority than the rest of the threads in the system it might come to the point that while answering a page fault or I/O memory area request the timeslice of the caller (core-pager) gets fully consumed. As long as other threads are still executable and don't block sigma0 won't do progress anymore, because it runs at the lowest priority. This commit simply sets sigma0's priority to the highest in the system. Was: 'sigma0_prio.patch'
Fix multiple definition of 'init_errata_workarounds'
Added 'exynos5' bsp, enabled MMU and UART, disabled caches.
Stage2, GIC, timer, UART, FPU running on single core.
Second CPU is up and receives timer interrupts. Caches are still disabled.
Added errata 774769, also there is no need to clean the cache on page table update.
This patch is needed for the Genode KDB terminal. Fixes #1.
Use carry bit in EFLAGS to pass thread state to ex_reg caller. Do not touch other bits, which might disable interrupts on kernel exit. Fixes #2.
With this patch, the kernel fetches serial data also when the '-serial_esc' option is not set. To keep the patch minimally invasive, the 'serial ESC' functionality gets enabled by default and the existence of the '-serial_esc' argument gets only checked when an ESC character was received and the decision of entering the kernel debugger or not needs to be made. Fixes #3.
With this patch the comport are tried to read out from the BIOS Data Area on x86 machines. The BDA Area are part of the first physical page and may contain the non-default io ports of the comport. When used together with 'bender' from the 'morbo' toolchain, even serial PCI cards (also Intel's AMT Serial Over Line adapter) are detected automatically.
iloskutov
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Nov 5, 2013
Depends on - ssumpf/foc#4 - which adds BDA read out of I/O ports to FOC kernel. Issue genodelabs#768
cproc
pushed a commit
to cproc/genode
that referenced
this pull request
May 12, 2014
Depends on - ssumpf/foc#4 - which adds BDA read out of I/O ports to FOC kernel. Issue genodelabs#768
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@ssumpf: What do you think ?