79ee9286f2
entirely of one machdep file lifted from the MALTA port, as well as a low-level console and tty driver for the gxemul debugging console device (the emulators stdio). As with many low-level embedded and hypervisor console devices, it is polled only, so we drive TTY I/O from a callout; we are perhaps a bit too aware of the MIPS physical maps in order to attach the console before newbus comes to life. The sample kernel configuration depends on an MD-based root file system, which is not provided. However, any 64-bit, big-endian userspace image (such as one generated for MALTA) should work. This will hopefully be supplemented by additional device drivers for gxemul-specific hardware simulations from Juli Mallett. We have found oldtestmips quite useful for testing and improving aspects of the MIPS port, so it's worth supporting better in FreeBSD. Requested by: theraven, jmallett Sponsored by: DARPA, AFRL MFC after: 3 weeks
53 lines
1.2 KiB
Plaintext
53 lines
1.2 KiB
Plaintext
#
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# GXEMUL "oldtestmips" sample kernel configuration.
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#
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# $FreeBSD$
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#
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ident GXEMUL
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machine mips mips64eb
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cpu CPU_MIPS4KC
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options HZ=100
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makeoptions ARCH_FLAGS="-march=mips64 -mabi=64"
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makeoptions KERNLOADADDR=0xffffffff80100000
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include "../gxemul/std.gxemul"
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hints "GXEMUL.hints" #Default places to look for devices.
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makeoptions DEBUG=-g #Build kernel with gdb(1) debug symbols
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makeoptions MODULES_OVERRIDE=""
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options DDB
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options KDB
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options SCHED_ULE
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options FFS #Berkeley Fast Filesystem
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# Debugging for use in -current
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#options DEADLKRES #Enable the deadlock resolver
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options INVARIANTS #Enable calls of extra sanity checking
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options INVARIANT_SUPPORT #Extra sanity checks of internal structures, required by INVARIANTS
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#options WITNESS #Enable checks to detect deadlocks and cycles
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#options WITNESS_SKIPSPIN #Don't run witness on spinlocks for speed
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#
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# This kernel configuration uses an embedded 8MB memory root file system.
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# Adjust the following path based on local requirements.
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#
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options MD_ROOT # MD is a potential root device
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options MD_ROOT_SIZE=8192
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#makeoptions MFS_IMAGE=/local/scratch/rnw24/mdroot.img
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options ROOTDEVNAME=\"ufs:md0\"
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device gxemul_cons
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device md
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device loop
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device random
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