Re: [kvm-devel] PV network performance comparison

2007-10-14 Thread Zhao Forrest
On 10/12/07, James Dykman <[EMAIL PROTECTED]> wrote: > Dor, > > I ran some netperf tests with your PV > virtio drivers, along with some Xen PV cases > and a few others for comparison. I thought you > (and the list) might be interested in the numbers. > > I am going to start looking for bottlenecks,

Re: [kvm-devel] kernel device reset support

2007-10-14 Thread Dong, Eddie
>N+1, for me is that synchronous device emulation (like pio and mmio) >happens in in the vcpu thread and asynchronous device emulation >(handling signals in qemu, performing dma, and injecting interrupts) >happens in the device thread. This minimizes context switching and >heavyweight exits. > If

Re: [kvm-devel] [Patch][RFC]Split kvm_vcpu to support new archs.

2007-10-14 Thread Zhang, Xiantao
Avi Kivity wrote: > Zhang, Xiantao wrote: >>> From 12457e0fb85ef32f1a1f808be294bebe8d22667c Mon Sep 17 00:00:00 >>> 2001 >> From: Zhang xiantao <[EMAIL PROTECTED]> >> Date: Fri, 12 Oct 2007 13:29:30 +0800 >> Subject: [PATCH] Split kvm_vcpu to support new archs. Define a new >> sub field kvm_arch_v

Re: [kvm-devel] Guest Time Question

2007-10-14 Thread Dong, Eddie
> >That 0.1% kills me though. do you mean, that every 1 second, 1 >will be 1ms >off? And for every second thereafter, leaving me with 1 second >drift after >only 1000 seconds? > Oh, that is not my intension :-( I just put a rought estimation here. In old Xen time, I know there are ~10-30 secon

Re: [kvm-devel] [RFC] Paravirt timer for KVM

2007-10-14 Thread Dong, Eddie
>>> 1) the PIT is periodic. a PV timer can offer a one shot >timer which >>> enables dynticks. >>> >> >> Obviously people have figured out how to do dynticks on real x86 >> hardware, so I don't accept this reason. :) >> > >Using more advanced timers like the HPET. > I'd think there is

[kvm-devel] 代开发票

2007-10-14 Thread 代开发票
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[kvm-devel] qemu-system-x86_64 locks hard when used with kvm

2007-10-14 Thread Jan Frey
Hi, I intended to use qemu-system-x86_64 with kvm for full virtualization. My host is # cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 127 model name : AMD Athlon(tm) 64 Processor 3500+ stepping: 1 cpu MHz : 1000.00

Re: [kvm-devel] [PATCH 3/4] Swapping

2007-10-14 Thread Avi Kivity
Anthony Liguori wrote: > Avi Kivity wrote: >> Anthony Liguori wrote: >>> Avi Kivity wrote: Anthony Liguori wrote: > I think it's just a matter of calling do_mmap() with the > appropriate parameters. It looks likes there's some drivers call > do_mmap() directly. >

Re: [kvm-devel] [PATCH 3/4] Swapping

2007-10-14 Thread Anthony Liguori
Avi Kivity wrote: > Anthony Liguori wrote: >> Avi Kivity wrote: >>> Anthony Liguori wrote: >>> I think it's just a matter of calling do_mmap() with the appropriate parameters. It looks likes there's some drivers call do_mmap() directly. >>> >>> This will halve t

Re: [kvm-devel] [PATCH 3/4] Swapping

2007-10-14 Thread Avi Kivity
Anthony Liguori wrote: > Avi Kivity wrote: >> Anthony Liguori wrote: >> >>> I think it's just a matter of calling do_mmap() with the appropriate >>> parameters. It looks likes there's some drivers call do_mmap() >>> directly. >>> >>> >> >> This will halve the maximum size of virtual mac

Re: [kvm-devel] [PATCH 3/4] Swapping

2007-10-14 Thread Anthony Liguori
Avi Kivity wrote: > Anthony Liguori wrote: > >> I think it's just a matter of calling do_mmap() with the appropriate >> parameters. It looks likes there's some drivers call do_mmap() directly. >> >> >> > > This will halve the maximum size of virtual machines on i386 since > userspace w

Re: [kvm-devel] [Qemu-devel] [PATCH] Fix color problems with sdl on bgr displays

2007-10-14 Thread Avi Kivity
Blue Swirl wrote: > On 10/14/07, Avi Kivity <[EMAIL PROTECTED]> wrote: > >> Some kvm users complained that the blue and red channels are flipped on >> their displays. Reverting sdl.c rev 1.40 fixed that problem, so >> apparently that commit made the problem larger than it was previously. >> >>

Re: [kvm-devel] [Qemu-devel] [PATCH] Fix color problems with sdl on bgr displays

2007-10-14 Thread Blue Swirl
On 10/14/07, Avi Kivity <[EMAIL PROTECTED]> wrote: > Some kvm users complained that the blue and red channels are flipped on > their displays. Reverting sdl.c rev 1.40 fixed that problem, so > apparently that commit made the problem larger than it was previously. > > Attached a patch the removes t

[kvm-devel] [PATCH] Fix color problems with sdl on bgr displays

2007-10-14 Thread Avi Kivity
Some kvm users complained that the blue and red channels are flipped on their displays. Reverting sdl.c rev 1.40 fixed that problem, so apparently that commit made the problem larger than it was previously. Attached a patch the removes the commit and fixes the problem. Please apply. -- err

[kvm-devel] AMD AMD690 Board with Virtualization enabled

2007-10-14 Thread Elmar Haneke
Hi, what Mainboards with AMD690 chipsets are known to enable virtualization functionality (be default or by BIOS setting)? Elmar - This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find prob

Re: [kvm-devel] [PATCH 3/4] Swapping

2007-10-14 Thread Avi Kivity
Avi Kivity wrote: I wonder if there's a more elegant way dealing with older userspaces. For instance, is there any reason why we can allocate a userspace memory region on behalf of userspace. That way swap would even work with older userspaces. >>>

Re: [kvm-devel] kvm: disabled by bios

2007-10-14 Thread Avi Kivity
Emmanuel Nicolas Millan wrote: >> Hi, >> >> is there any option to reenable virtualisation support (AMD-CPU) if it >> is disabled by bios (and Bios does not show an option to enable >> virtualisation support)? >> > > >> Elmar >> > > Hi, i'm having the same problem, my bios doesn't have

Re: [kvm-devel] OpenBSD 4.1 failes with kvm-45

2007-10-14 Thread Dan Kenigsberg
On Sat, Oct 13, 2007 at 01:36:56AM +0200, Oliver Kowalke wrote: > Hi, > I've applied the patch now the kernel detects: > cpu0: Intel Pentium Pro, II or III... > cpu0: FPU,V86,... > But I get in the next line: > kernel: page fault trap, code=0 > Stopped at trap+0x16f: testb $0x3,0x38(%ecx) Apparen