Monday 19th March 2012

This month's meetings

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Attendees

  • Andrew Stubbs
  • Åsa Sandahl
  • Ken Werner
  • Michael Hope
  • Peter Maydell
  • Richard Earnshaw
  • Rusty Russell
  • Ulrich Weigand
  • Matt Gretton-Dann

Agenda

  • Review action items from last meeting
  • Daylight savings changes
    • Switch to 0900 UTC / 10 am UK time starting next week
  • KVM
    • What shall we commit to for 2.5 months?
    • MichaelHope/Sandbox/Q1.12ToDo

    • Running Ubuntu (Thumb-2, NEON)
    • Hardware packs
      • Any special config?
    • Validation
  • Picking blueprints
    • GCC
      • Andrew's 64 bit improvements 1 by 1
      • PGO hot cold partitioning
      • vld1
    • OpenEmbedded

    • Binaries
      • Update for 2012.03
      • Anything else?

Minutes

Daylight savings:

  • 9am next week
  • 10am week after

KVM:

  • What should we commit to for ~2.5 months
  • Michael went through the high priorities
  • Many are administrative
  • Currently one card, one blueprint, one team
  • Emulation side is an infinite ocean to boil
  • A9 guest?
    • Don't implement but obvious where to hook
    • A way of tagging
    • QEMU telling the kernel what to emulate
    • Rusty will look at x86 and see how it does it
    • 'Give me an A9' versus 'give me a PMU1 + HW debug2 + ...'
    • With/without NEON
    • Don't really need one
  • CP15
    • Currently running some wildcards, need to see which hit
    • ABI between isn't defined
  • Thumb-2 MMIO
    • Quite a lot to do in the end, sent Rusty's direction
    • Range of instructions but not insane level
    • Same problem in ARM mode
    • Can we run an ARM guest kernel and keep userspace in Thumb-2?
    • Perhaps
    • Also influences killing guest - don't want guest to die on userspace

Picking blueprints:

  • GCC
    • Andrew's 64 bit improvements 1 by 1
    • PGO hot cold partitioning
    • vld1
  • OpenEmbedded

  • Binaries
    • Update for 2012.03
    • Anything else?

Sunspider:

  • Hand over to Michael
  • Will push cbuild changes
  • Looking into variance

WorkingGroups/ToolChain/Meetings/Archive/2012-03-19 (last modified 2013-08-30 11:48:58)