[PATCH] Forward DB# exceptions to real mode guests

2008-07-12 Thread Mohammed Gamal
From: Jan Kiszka [EMAIL PROTECTED] This fixes the issue booting FreeDOS under userspace kvm-70rc1 and above. Signed-off-by: Mohammed Gamal [EMAIL PROTECTED] --- arch/x86/kvm/vmx.c | 12 include/asm-x86/kvm_host.h |1 + 2 files changed, 13 insertions(+), 0

Re: Sharing variables/memory between host and guest ?

2008-07-12 Thread Dor Laor
Arn wrote: How can one share memory (a few variables not necessarily a page) between host/hypervisor and guest VM ? Since the guest is just a process within the host, there should be existing ways to do this. It's not that straight forward since the host has its pfn (page frame number) while

Re: rtl8139 stop working under high load

2008-07-12 Thread Dor Laor
Farkas Levente wrote: hi, i'm just switch to the use rtl8139 network emulator in kvm-70 for the guests, but under high load it's simple stop working. a reboot or even a service network restart solve the problem, but imho there should have to be some bug in the qemu's rtl8139 code. and there

Re: kvm guest loops_per_jiffy miscalibration under host load

2008-07-12 Thread Marcelo Tosatti
Hi David, On Fri, Jul 11, 2008 at 03:18:54PM -0600, David S. Ahern wrote: What's the status with this for full virt guests? The consensus seems to be that fullvirt guests need assistance from the management app (libvirt) to have boosted priority during their boot stage, so loops_per_jiffy

Re: [ANNOUNCE] kvm-autotest

2008-07-12 Thread Marcelo Tosatti
Hi Uri, On Thu, Jul 10, 2008 at 03:09:36PM +0300, Uri Lublin wrote: You see guests as clients and the host as the server. We were thinking of the host as a client and multi-host operations to be done by a server. guest-operations would be done using ssh (for linux guests) as your example

Re: rtl8139 stop working under high load

2008-07-12 Thread Farkas Levente
Dor Laor wrote: Farkas Levente wrote: hi, i'm just switch to the use rtl8139 network emulator in kvm-70 for the guests, but under high load it's simple stop working. a reboot or even a service network restart solve the problem, but imho there should have to be some bug in the qemu's rtl8139

Re: [RFC][PATCH] Add HPET emulation to qemu

2008-07-12 Thread Alexander Graf
Hi Beth, On Jul 10, 2008, at 5:48 AM, Beth Kon wrote: This patch, based on an earlier patch by Alexander Graf, adds HPET emulation to qemu. I am sending out a separate patch to kvm with the required bios changes. This work is incomplete. Wow it's good to see that someone's working on it. I

Re: KVM, SCSI OpenSolaris

2008-07-12 Thread james
On 12/07/2008, at 12:15 AM, Thomas Mueller wrote: On Thu, 10 Jul 2008 15:50:41 -0500, Anthony Liguori wrote: I don't quite following what you are saying. Are you saying that OpenSolaris no longer supports the SCSI card we emulate? That seems unfortunate on their part. I would also be

Re: Sharing variables/memory between host and guest ?

2008-07-12 Thread Arn
Thanks Dor. More below. How can one share memory (a few variables not necessarily a page) between host/hypervisor and guest VM ? Since the guest is just a process within the host, there should be existing ways to do this. It's not that straight forward since the host has its pfn (page frame

Re: Sharing variables/memory between host and guest ?

2008-07-12 Thread Eric Van Hensbergen
On Sat, Jul 12, 2008 at 4:03 PM, Arn [EMAIL PROTECTED] wrote: A paravirtualized driver can take care of that with driver in the guest and device side in qemu/host kernel. You can use 9p virtio solution in Linux that implements a shared file system. I had a look at the 9p related slides on

Re: Sharing variables/memory between host and guest ?

2008-07-12 Thread Arn
Eric, thanks for the prompt response, a few more questions: The virtio portions of the kernel were just added in 2.6.24, the server portion has not yet been integrated into the kvm-qemu mainline, but is fairly trivial to merge. You can also use the TCP/IP version of the 9p transport to get

Re: Sharing variables/memory between host and guest ?

2008-07-12 Thread Eric Van Hensbergen
On Sat, Jul 12, 2008 at 4:59 PM, Arn [EMAIL PROTECTED] wrote: Eric, thanks for the prompt response, a few more questions: The virtio portions of the kernel were just added in 2.6.24, the server portion has not yet been integrated into the kvm-qemu mainline, but is fairly trivial to merge.