Hello, I am trying to understand the virtio mechanism in linux. I read that the kick function will notify the host side about the newly published buffers. I am looking especially at virtio_net.Once a packet is ready for transmission the kick function is called here. From here i traced the call and i think it goes to this. From here whe...
I know that the qemu-kvm does the device emulation stuff in KVM. Is the qemu-kvm being executed in the userspace of the host? So when a kick function is encountered, it exits the VM through a hypercall into the hypervisor, then the hypervisor hand over to qemu-kvm in host userspace. Next after doing the needed things, the qemu-kvm transi...
I'm using a UEC Cloud (with kvm) Can I restore an image, in a VM, without booting it? (like freezing the image and then restarting the image on that exact tick while skipping the whole booting) Is that what 'Snapshot' is? If it's possible, then what are the general steps to do it? Thanks ...
i compiled a static program using gcc on linux and run it under kvm. I checked every page table entry of this process in guest memory and found that some pages have been mapped and some ones are not. Is this the feature of on-demand paging? My question is whether there is a solution to make all the pte present and mapped in the page tabl...
Hi, How can I increase the size of a disk allocated to a KVM machine ? It can be lvm, raw file etc. thanks ...
Hello, so we have a life server Farm, conventional stuff not virtualized. This is to stay that way for the time beeing. The servers we are talking about are: Loadbalancer, DB master, DB Slaves (2x), Webservers (2x), CMS server. All in all 7 servers per farm. We want to have one to many rather exact "copies" of the life structure for in...
Hi All, We are looking to move all of our systems to a virtualized env. We will be going with EC2 and it appears that if we can install something like vmware or KVM on EC2 then create VMs as needed it would be the most cost effective solution for us. Is this possible? thanks! ...
I want to use the hypercall of kvm to communicate (just send strings, it is uni-directional) between the guest and vmm instead of creating a network channel between the guest os and host. I have only found the file arch/x86/include/asm/kvm_para.h in linux kernel? Is it similar to the system call of linux? How can I call these functions ...
I'm running Mac OS X with KVM Switch and when I switch to Mac OS, I have to wait few seconds until the system wakes up. I used InsomniaX but it didn't fix this issue. Do you know any fix for this delay ? ...