e6882c3469
latter is a kernel option for IA64_ID_PAGE_SHIFT, which in turn determines IA64_ID_PAGE_MASK and IA64_ID_PAGE_SIZE. The constants are used instead of the literal hardcoding (in its various forms) of the size of the direct mappings created in region 6 and 7. The default and probably only workable size is still 256M, but for kicks we use 128M for LINT.
54 lines
1.5 KiB
Plaintext
54 lines
1.5 KiB
Plaintext
# $FreeBSD$
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#
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# This file contains machine dependent kernel configuration notes. For
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# machine independent notes, look in /sys/conf/NOTES.
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# directive: machine
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# This directive is mandatory. It defines the architecture to be configured
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# for. It can only be ia64 at this time.
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#
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machine ia64
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# directive: cpu
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# You must specify at least one CPU (the one you intend to run on). Deleting
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# the support for CPUs you don't need to use may make parts of the system run
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# faster. There's currently no special code for the different CPUs. Note also
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# that the cpu declares the family. We may need to add support for specifying
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# particular models.
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cpu ITANIUM
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cpu ITANIUM2
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# option: IA32
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# This option enables the support for execution of i386 (32-bit) programs on
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# ia64. It is based on the ia32 emulation in the processor.
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options IA32
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# option: LOG2_ID_PAGE_SIZE
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# Specify the log2 size of the identity (direct) mappings in regions 6 and 7
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# of the virtual address space.
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options LOG2_ID_PAGE_SIZE=27 # 128M
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# option: LOG2_PAGE_SIZE
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# Specify the log2 size of the page to be used for virtual memory management.
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# The page size being equal to 1<<LOG2_PAGE_SIZE.
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options LOG2_PAGE_SIZE=15 # 32K
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# option: SKI
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# Build support for running under the ski simulator.
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options SKI
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# option: UWX_TRACE_ENABLE
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# Build the unwinder with tracing support. This option is used to debug the
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# unwinder itself and the glue around it.
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options UWX_TRACE_ENABLE
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# MI options
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options ACPI_DEBUG
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options KSTACK_PAGES=3
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device acpi
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device agp
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device eisa
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device isa
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device pci
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