[Bug 1030588] Re: [FFE] support emulated systems w/ > 2G of memory

[Micah Gersten]

Unsubscribing sponsors until this FFe is approved

** Changed in: qemu-linaro (Ubuntu Quantal)
       Status: In Progress => New

** Changed in: qemu-linaro (Ubuntu Quantal)
     Assignee: Fathi Boudra (fboudra) => (unassigned)

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Title:
  [FFE] support emulated systems w/ > 2G of memory

Status in “qemu-linaro” package in Ubuntu:
  New
Status in “qemu-linaro” source package in Precise:
  New
Status in “qemu-linaro” source package in Quantal:
  New

Bug description:
  [Impact]
  Allows the usage of the highbank model on amd64 systems.

  [Fix]
    http://git.linaro.org/gitweb?p=qemu/qemu-linaro.git;a=commitdiff;h=80a2ba3d3cf33b777d6a45776b0625b9a4283951
  [Test Case]
  On an amd64 system w/ > 4G of RAM:
  $ sudo qemu-system-arm -nographic -M highbank -m 4089 -kernel ~/vmlinuz-3.2.0-2000-highbank -append console=ttyAMA0 -dtb ~/highbank.dtb

  You can use the vmlinuz and highbank.dtb files from the latest linux-
  image-XXX-highbank package.

  When things work, you'll see kernel boot messages. When they don't, you'll get an error:
  qemu: could not load kernel '/home/ubuntu/vmlinuz-3.2.0-2000-highbank'
  [Regression Potential]
  The only issue I can see is if a caller was counting on size overflow behavior, which seems unlikely.

  [Original Report]
  Please apply this patch from upstream:
    http://git.linaro.org/gitweb?p=qemu/qemu-linaro.git;a=commitdiff;h=80a2ba3d3cf33b777d6a45776b0625b9a4283951
  This patch allows QEMU to support emulated systems with > 2G of memory, a requirement for supporting the Calxeda "highbank" target.

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