Re: [kvm-devel] RFC: qemu acpi hotplug

2008-01-19 Thread Avi Kivity
Glauber de Oliveira Costa wrote: When it's more close to inclusion, I'd also post it to main qemu list. But right now, I'm just aiming at a first round around this draft. The attached patch is enough to make the notifications DEVICE_CHECK and EJECT reach the kernel. As far as I understand,

Re: [kvm-devel] [PATCH] add acpi powerbutton support

2008-01-19 Thread Guido Guenther
On Sat, Jan 19, 2008 at 12:20:56AM +0200, Avi Kivity wrote: I found a piix4 acpi spec update that says that the SCI interrupt is hardwired to IRQ9 and is active high. Linux knows about this and ignores the pci irq config for this function. With the following changes Aahh, that's why Xen

Re: [kvm-devel] [PATCH] add acpi powerbutton support

2008-01-19 Thread Jan Kiszka
Guido Guenther wrote: On Tue, Jan 08, 2008 at 01:34:30PM +0900, Jun Koi wrote: Sorry for my ignorance, but what is the effect of this patch? So I can shutdown guest VM cleanly, or smt else?? system_powerdown in the commmand monitor now simulates the pressing of the acpi power button.

Re: [kvm-devel] [RFC] fix VMX TSC synchronicity

2008-01-19 Thread Andi Kleen
Avi Kivity avi-atKUWr5tajBWk0Htik3J/[EMAIL PROTECTED] writes: Thanks; that's reassuring to know that it will work (at least on Intel). Actually there are modern Intel systems which still have instable TSCs; e.g. IBM Summit multi node systems and some others. So you should still handle that

Re: [kvm-devel] [PATCH] kvm: qemu: remove SIGUSR2 from io_sigset

2008-01-19 Thread Will Trives
Hello, This patch : kvm: qemu: remove SIGUSR2 from io_sigset Applied 15th Jan 2008 looks to kill I/O performance for me. As soon as I revert it my VMs are much faster. I don't really use SMP for my guests, perhaps this patch made uniprocessor VMs slower ? Regards, Will Trives

Re: [kvm-devel] [PATCH] KVM simplified virtio balloon driver

2008-01-19 Thread Anthony Liguori
Avi Kivity wrote: Rusty Russell wrote: After discussions with Anthony Liguori, it seems that the virtio balloon can be made even simpler. Here's my attempt. Since the balloon requires Guest cooperation anyway, there seems little reason to force it to tell the Host when it wants to reuse a

[kvm-devel] kvm: qemu: remove SIGUSR2 from io_sigset patch slows VMs

2008-01-19 Thread Will Trives
Hello, This patch : kvm: qemu: remove SIGUSR2 from io_sigset Applied 15th Jan 2008 looks to kill I/O performance for me. As soon as I revert it my VMs are much faster. I don't really use SMP for my guests, perhaps this patch has made uniprocessor VMs slower ? The issue occurs even when using

Re: [kvm-devel] [PATCH] KVM simplified virtio balloon driver

2008-01-19 Thread Marcelo Tosatti
On Sat, Jan 19, 2008 at 04:37:43PM -0600, Anthony Liguori wrote: Avi Kivity wrote: Rusty Russell wrote: After discussions with Anthony Liguori, it seems that the virtio balloon can be made even simpler. Here's my attempt. Since the balloon requires Guest cooperation anyway, there seems

Re: [kvm-devel] [PATCH] KVM simplified virtio balloon driver

2008-01-19 Thread Anthony Liguori
Marcelo Tosatti wrote: On Sat, Jan 19, 2008 at 04:37:43PM -0600, Anthony Liguori wrote: Avi Kivity wrote: Rusty Russell wrote: After discussions with Anthony Liguori, it seems that the virtio balloon can be made even simpler. Here's my attempt. Since the balloon requires