arm: armv8 boot options to enable v8
Modifies FSConfig.py to enable ARMv8 compatibility. To boot gem5 with ARMv8: Download the v8 kernel, .dtb file, and root FS from: http://gem5.org/Download Download the ARMv8 toolchain, and add the bin dir to your path: http://www.linaro.org/engineering/engineering-projects/armv8 Build gem5 for ARM Build the v8 bootloader (in gem5/system/arm/aarch64_bootloader) Make script in gem5/system/arm/aarch64_bootloader will require v8 toolchain, drop the produced boot_emm.arm64 in $(M5_PATH)/binaries/ Run: $ build/ARM/gem5.fast configs/example/fs.py --machine-type=VExpress_EMM64 \ --kernel=/path/to/kernel/vmlinux-linaro-tracking \ --dtb-filename=/path/to/dtb/rtsm_ve-aemv8a.dtb \ --disk-image=/path/to/img/linaro-minimal-armv8.img
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1 changed files with 12 additions and 6 deletions
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@ -251,10 +251,13 @@ def makeArmSystem(mem_mode, machine_type, mdesc = None,
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self.cf0 = CowIdeDisk(driveID='master')
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self.cf0.childImage(mdesc.disk())
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# default to an IDE controller rather than a CF one
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# assuming we've got one
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try:
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self.realview.ide.disks = [self.cf0]
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except:
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# assuming we've got one; EMM64 is an exception for the moment
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if machine_type != "VExpress_EMM64":
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try:
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self.realview.ide.disks = [self.cf0]
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except:
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self.realview.cf_ctrl.disks = [self.cf0]
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else:
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self.realview.cf_ctrl.disks = [self.cf0]
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if bare_metal:
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@ -273,8 +276,11 @@ def makeArmSystem(mem_mode, machine_type, mdesc = None,
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print " another platform"
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sys.exit(1)
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boot_flags = 'earlyprintk console=ttyAMA0 lpj=19988480 norandmaps ' + \
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'rw loglevel=8 mem=%s root=/dev/sda1' % mdesc.mem()
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# Ensure that writes to the UART actually go out early in the boot
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boot_flags = 'earlyprintk=pl011,0x1c090000 console=ttyAMA0 ' + \
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'lpj=19988480 norandmaps rw loglevel=8 ' + \
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'mem=%s root=/dev/sda1' % mdesc.mem()
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self.mem_ranges = [AddrRange(self.realview.mem_start_addr,
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size = mdesc.mem())]
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self.realview.setupBootLoader(self.membus, self, binary)
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