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From: Mikael Pettersson <mikpelinux@gmail.com>
To: Mikulas Patocka <mpatocka@redhat.com>
Cc: Tony Luck <tony.luck@intel.com>,
	Fenghua Yu <fenghua.yu@intel.com>,
	linux-ia64@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/5] ia64 ski emulator patches
Date: Fri, 24 Jan 2014 14:42:23 +0100	[thread overview]
Message-ID: <21218.28095.779306.523187@gargle.gargle.HOWL> (raw)
In-Reply-To: <alpine.LRH.2.02.1401232041520.16873@file01.intranet.prod.int.rdu2.redhat.com>

Mikulas Patocka writes:
 > Hi
 > 
 > Here I'm sending some ia64 patches to make it work in the ski emulator. 
 > This has been broken for a long time.

Thanks.  I've recently started running 3.x kernels on ia64 via ski,
but I'm getting random kernel crashes with 3.13.  I'll give your
patches a try shortly.

I've written a few patches to improve other aspects of running the
kernel on ski:
- ski patch to use tun/tap networking (no need to run ski as root)
- ski patch to implement a fixed-frequency ITC (the ITC is currently
  highly variable, completely breaking basic timekeeping)
- kernel patch to turn PAL_HALT_LIGHT into a new SSC_HALT_LIGHT,
  and a corresponing ski patch to pause() on SSC_HALT_LIGHT; this
  together with the fixed-frequency ITC patch allows ski to idle
  with very low host CPU overhead when the guest kernel idles
- kernel patch to bump the RAM size from 130MB to 2GB

I'd be happy to share these patches if there's interest in them.

/Mikael

  parent reply	other threads:[~2014-01-24 13:42 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-24  1:52 Mikulas Patocka
2014-01-24  1:52 ` [PATCH 1/5] ia64: limit stack size for the ski emulator Mikulas Patocka
2014-01-24  1:52   ` [PATCH 2/5] ia64 simeth: fix bugs in the ski emulator ethernet driver Mikulas Patocka
2014-01-24  1:53     ` [PATCH 3/5] ia64 simserial: fix sleeping with interrupts disabled Mikulas Patocka
2014-01-24  1:53       ` [PATCH 4/5] ia64 simscsi: fix race condition and simplify the code Mikulas Patocka
2014-01-24  1:53         ` [PATCH 5/5] ia64: fix warnings Mikulas Patocka
2014-01-24  2:07           ` [PATCH] ia64: validate user arguments in csum_partial_copy_from_user Mikulas Patocka
2014-02-07 16:05             ` Mikulas Patocka
2014-01-24 13:42 ` Mikael Pettersson [this message]
2014-01-24 14:40   ` [PATCH 0/5] ia64 ski emulator patches Mikulas Patocka
2014-01-25 17:51     ` Mikael Pettersson
2014-01-25 20:41       ` Mikulas Patocka
2014-01-25 21:08         ` Mikael Pettersson
2014-01-28 14:46           ` Mikael Pettersson
2014-01-24 17:33   ` Mikulas Patocka
2014-01-25 17:42     ` Mikael Pettersson
2014-01-24 22:59   ` Luck, Tony
2014-01-25 18:02     ` Mikael Pettersson

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