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arm: Add support for automatic boot loader selection

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Add support for automatically selecting a boot loader that matches the
guest system's kernel. Instead of accepting a single boot loader, the
ArmSystem class now accepts a vector of boot loaders. When
initializing a system, the we now look for the first boot loader with
an architecture that matches the kernel.

This changeset makes it possible to use the same system for both
64-bit and 32-bit kernels.
This commit is contained in:
Andreas Sandberg
2015-12-03 23:53:37 +00:00
parent 146dfd0356
commit a1aeff27ce
3 changed files with 55 additions and 12 deletions
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7
src/arch/arm/ArmSystem.py
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@@ -1,4 +1,4 @@
# Copyright (c) 2009, 2012-2013 ARM Limited
# Copyright (c) 2009, 2012-2013, 2015 ARM Limited
# All rights reserved.
#
# The license below extends only to copyright in the software and shall
@@ -50,7 +50,10 @@ class ArmSystem(System):
cxx_header = "arch/arm/system.hh"
load_addr_mask = 0xffffffff
multi_proc = Param.Bool(True, "Multiprocessor system?")
boot_loader = Param.String("", "File that contains the boot loader code if any")
boot_loader = VectorParam.String([],
"File that contains the boot loader code. Zero or more files may be "
"specified. The first boot loader that matches the kernel's "
"architecture will be used.")
gic_cpu_addr = Param.Addr(0, "Addres of the GIC CPU interface")
flags_addr = Param.Addr(0, "Address of the flags register for MP booting")
have_security = Param.Bool(False,