Re: [Qemu-devel] [PATCH] ARM - Remove fixed map code buffer restriction

2011-12-12 Thread David Gilbert
On 12 December 2011 18:10, andrzej zaborowski balr...@gmail.com wrote: On 12 December 2011 19:03, Peter Maydell peter.mayd...@linaro.org wrote: On 12 December 2011 17:24, andrzej zaborowski balr...@gmail.com wrote: BTW: I think we can also use the ld branch when we see the goto target is in

Re: [Qemu-devel] [ICON] QEMU Mascot Contest v.2

2011-11-11 Thread David Gilbert
Yes, the Q with the emu head looks nice - I kind of think the middle of the Q starts to look nicely like an egg; but perhaps that's just me. Dave

Re: [Qemu-devel] [PATCH 2/5] linux-user: add open() hijack infrastructure

2011-11-03 Thread David Gilbert
On 2 November 2011 19:23, Alexander Graf ag...@suse.de wrote: There are a number of files in /proc that expose host information to the guest program. This patch adds infrastructure to override the open() syscall for guest programs to enable us to on the fly generate guest sensible files.

Re: [Qemu-devel] [PATCH] Make cpu_single_env thread local (Linux only for now)

2011-10-07 Thread David Gilbert
On 5 October 2011 10:21, Paolo Bonzini pbonz...@redhat.com wrote: If interested people can test the patches more and submit them more formally, I'd be very glad.  I wrote it for RCU, but of course that one is not really going to be 1.0 material (even for 9p). Hmm this got a bit more complex

Re: [Qemu-devel] How to run realview-pbx-a9 image in qemu

2011-09-27 Thread David Gilbert
On 27 September 2011 14:01, loody milo...@gmail.com wrote: hi: snip Would you mind to let me know which configs you use to compile for a9 running on qemu? Kernel configs? I mostly use prebuilt kernels from the Linaro images. Dave

Re: [Qemu-devel] [PATCH 0/8] tcg/interpreter: Add TCG + interpreter for bytecode (virtual machine)

2011-09-19 Thread David Gilbert
On 18 September 2011 16:13, Stefan Weil w...@mail.berlios.de wrote: Am 18.09.2011 17:02, schrieb Mulyadi Santosa: Hi :) On Sun, Sep 18, 2011 at 02:59, Stefan Weil w...@mail.berlios.de wrote: Hello, these patches add a new code generator (TCG target) to qemu. I personally congrats you

Re: [Qemu-devel] [PATCH 0/8] tcg/interpreter: Add TCG + interpreter for bytecode (virtual machine)

2011-09-19 Thread David Gilbert
On 19 September 2011 11:20, Stefan Hajnoczi stefa...@gmail.com wrote: On Mon, Sep 19, 2011 at 9:40 AM, David Gilbert david.gilb...@linaro.org wrote: snip Is it possible to dynamically switch between the two? The two cases I'm thinking of are:  1) Using the interpreter to execute one

Re: [Qemu-devel] emulated ARM performance vs real processor ?

2011-09-02 Thread David Gilbert
On 1 September 2011 08:32, Julien Heyman bidsom...@gmail.com wrote: Hi, I was wondering if anyone had some data regarding the relative performance of any given ARM board emulated in QEMU versus the real thing. Yes, I do know this depends a lot on the host PC running qemu, but some

Re: [Qemu-devel] emulated ARM performance vs real processor ?

2011-09-02 Thread David Gilbert
On 2 September 2011 17:04, Julien Heyman bidsom...@gmail.com wrote: Thanks Dave. I use system emulation, and my main concern is just to know that the actual board will run faster than the emulation. So based on your example, and even though my target board (mini2440) is nowhere as fast as a

Re: [Qemu-devel] [PATCH] tcg: Reload local variables after return from longjmp

2011-08-11 Thread David Gilbert
On 11 August 2011 15:10, Paolo Bonzini pbonz...@redhat.com wrote: I'm not sure about what to read from there: If I make cpu_single_env thread local with __thread and leave 0d101... in, then again it works reliably on 32bit Lucid, and is flaky on 64 bit Oneiric (5/10 2 hangs, 3 segs) I've

[Qemu-devel] Multithreaded ARM regression from 0d101938

2011-08-10 Thread David Gilbert
Hi, I've just filed bug 823902 ( https://bugs.launchpad.net/qemu/+bug/823902 ) which is a mutlthreaded user mode ARM crash that goes away if I revert 0d101938 ( tcg: Reload local variables after return from longjmp ). It's actually a bit more complicated than that, in that: 1) It fails

[Qemu-devel] Defaulting SD_OPTS to cache=writeback

2011-07-27 Thread David Gilbert
Hi, Write performance on the SD emulation on ARM is rather painful with the default empty SD_OPTS; it's getting something like 130KB/s on the vexpress model With cache=writeback this goes up to a sensible 8MB/s. (This is with the file on an LUKS encrypted lvm partition that is my home directory

Re: [Qemu-devel] How to run realview-pbx-a9 image in qemu

2011-07-12 Thread David Gilbert
On 12 July 2011 07:04, Xiao Jiang jgq...@gmail.com wrote: It looks like I am not in luck, qemu still can't run successfully. I recompiled the qemu from linaro qemu tree and executed below instructions in order. 1. open window A, run below cmd. xjiang@xjiang-desktop:~/work/qemu$ sudo

Re: [Qemu-devel] How to run realview-pbx-a9 image in qemu

2011-07-11 Thread David Gilbert
On 11 July 2011 09:21, Xiao Jiang jgq...@gmail.com wrote: Hello, I downloaded latest qemu 0.14.1, it should support realview-pbx-a9 board now from below cmd. $ qemu-system-arm -M ?|grep Cortex-A9 realview-pbx-a9 ARM RealView Platform Baseboard Explore for Cortex-A9 Then I compiled a