From 6b765ba8b79814eddaa4c10a5cc140b636bb9df8 Mon Sep 17 00:00:00 2001 From: Anthony Gutierrez Date: Tue, 18 Feb 2014 17:20:56 -0500 Subject: 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 --- configs/common/FSConfig.py | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) (limited to 'configs/common') diff --git a/configs/common/FSConfig.py b/configs/common/FSConfig.py index 31f6a66db..cb1a004da 100644 --- a/configs/common/FSConfig.py +++ b/configs/common/FSConfig.py @@ -251,10 +251,13 @@ def makeArmSystem(mem_mode, machine_type, mdesc = None, self.cf0 = CowIdeDisk(driveID='master') self.cf0.childImage(mdesc.disk()) # default to an IDE controller rather than a CF one - # assuming we've got one - try: - self.realview.ide.disks = [self.cf0] - except: + # assuming we've got one; EMM64 is an exception for the moment + if machine_type != "VExpress_EMM64": + try: + self.realview.ide.disks = [self.cf0] + except: + self.realview.cf_ctrl.disks = [self.cf0] + else: self.realview.cf_ctrl.disks = [self.cf0] if bare_metal: @@ -273,8 +276,11 @@ def makeArmSystem(mem_mode, machine_type, mdesc = None, print " another platform" sys.exit(1) - boot_flags = 'earlyprintk console=ttyAMA0 lpj=19988480 norandmaps ' + \ - 'rw loglevel=8 mem=%s root=/dev/sda1' % mdesc.mem() + # Ensure that writes to the UART actually go out early in the boot + boot_flags = 'earlyprintk=pl011,0x1c090000 console=ttyAMA0 ' + \ + 'lpj=19988480 norandmaps rw loglevel=8 ' + \ + 'mem=%s root=/dev/sda1' % mdesc.mem() + self.mem_ranges = [AddrRange(self.realview.mem_start_addr, size = mdesc.mem())] self.realview.setupBootLoader(self.membus, self, binary) -- cgit v1.2.3