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authorAli Saidi <Ali.Saidi@ARM.com>2014-09-03 07:43:05 -0400
committerAli Saidi <Ali.Saidi@ARM.com>2014-09-03 07:43:05 -0400
commit1c0ae90027f0aea96389d0b82f2c732df72fc06c (patch)
tree96639d0aed6497ddda46634db054d14ad615ff3c /configs/common
parent16262a8fc3668d67d5eeb634e9b1a0de418e7162 (diff)
downloadgem5-1c0ae90027f0aea96389d0b82f2c732df72fc06c.tar.xz
arm: Support >2GB of memory for AArch64 systems
Diffstat (limited to 'configs/common')
-rw-r--r--configs/common/FSConfig.py27
1 files changed, 19 insertions, 8 deletions
diff --git a/configs/common/FSConfig.py b/configs/common/FSConfig.py
index a89c2a571..cc921229e 100644
--- a/configs/common/FSConfig.py
+++ b/configs/common/FSConfig.py
@@ -246,19 +246,30 @@ def makeArmSystem(mem_mode, machine_type, mdesc = None,
if dtb_filename:
self.dtb_filename = binary(dtb_filename)
self.machine_type = machine_type
- if convert.toMemorySize(mdesc.mem()) > int(self.realview.max_mem_size):
- print "The currently selected ARM platforms doesn't support"
- print " the amount of DRAM you've selected. Please try"
- print " another platform"
- sys.exit(1)
-
# 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.mem_ranges = []
+ size_remain = long(Addr(mdesc.mem()))
+ for region in self.realview._mem_regions:
+ if size_remain > long(region[1]):
+ self.mem_ranges.append(AddrRange(region[0], size=region[1]))
+ size_remain = size_remain - long(region[1])
+ else:
+ self.mem_ranges.append(AddrRange(region[0], size=size_remain))
+ size_remain = 0
+ break
+ warn("Memory size specified spans more than one region. Creating" \
+ " another memory controller for that range.")
+
+ if size_remain > 0:
+ fatal("The currently selected ARM platforms doesn't support" \
+ " the amount of DRAM you've selected. Please try" \
+ " another platform")
+
+
self.realview.setupBootLoader(self.membus, self, binary)
self.gic_cpu_addr = self.realview.gic.cpu_addr
self.flags_addr = self.realview.realview_io.pio_addr + 0x30