Re: Qemu Agent assistance needed
Great. What about CPU/RAM usage. Do you believe it will be possible to report it to the management layer ? If not - there will be no use of qemu-ga at all on openBSD. Best Regards, Strahil Nikolov On April 29, 2019 2:49:43 PM GMT+03:00, Stuart Henderson wrote: >On 2019-04-29, Strahil Nikolov wrote: >> Yes , but not only. >> I'm using oVirt - a KVM management tool and I can currently make a >snapshot only by pausing the VM or by completely stopping it first. >> For now, it's not a big deal - as I'm still exploring openBSD , but >who knows. >> Also the management interface cannot provide details about CPU and >RAM usage , nor I cannot gracefully shut the VM down from the >interface. >> The oVirt manager allows automatic evacuation of the VM, if it >requires more memory/cpu than the host can currently providing (for a >lab overcommitting is normal). >> >> I'm just looking to enable those fancy things that make our life >easier. > >qemu-ga needs a way to communicate with the kernel to tell it to stop >filesystem activity etc. OpenBSD doesn't support this.
Re: Qemu Agent assistance needed
On 2019-04-29, Strahil Nikolov wrote: > Yes , but not only. > I'm using oVirt - a KVM management tool and I can currently make a snapshot > only by pausing the VM or by completely stopping it first. > For now, it's not a big deal - as I'm still exploring openBSD , but who knows. > Also the management interface cannot provide details about CPU and RAM usage > , nor I cannot gracefully shut the VM down from the interface. > The oVirt manager allows automatic evacuation of the VM, if it requires more > memory/cpu than the host can currently providing (for a lab overcommitting is > normal). > > I'm just looking to enable those fancy things that make our life easier. qemu-ga needs a way to communicate with the kernel to tell it to stop filesystem activity etc. OpenBSD doesn't support this.
Re: Qemu Agent assistance needed
QGA depends on specific device name in /dev. Ideally the best would be kernel-based support like vmt. Dne po 29. 4. 2019 10:03 uživatel Solene Rapenne napsal: > On Sun, Apr 28, 2019 at 11:10:14AM +, Strahil Nikolov wrote: > > Hi All, > > I am new to openBSD and I really like the idea. Sadly I do not have > > suitable hardware to run on , thus I use KVM and I would be happy if > > anyone hint me of a working solution for Qemu Guest Agent. > > Anything I dig up (via google searches) show up only suggestions , but > > nothing more.In openBSD 6.4 I successfully installed qemu (and thus > > the agent), but I can't understand how to get the device needed for > > communication with the host up and running. > > As I mainly know linux - I know that we need a kernel module that to > > be loaded and with combination of udev rules - the devices is created > > on the necessary location and with the correct rights.According to > > many google findings - openBSD doesn't support any more loadable > > kernel module support. > > I have tried to figure it out by myself, but I cannot find the > > necessary module needed, nor how to load it in a proper manner. > > Any hint is well appreciated. > > Best Regards,Strahil Nikolov > > > > qemu on openbsd doesn't support any hardware acceleration, and the > available version is quite old. > > I'm not sure it is compatible with libvirt. > >
Re: Qemu Agent assistance needed
I have installed qemu, as qemu-ga cannot be installed standalone. I qm trying to have snapshots without pausing the VM and to provide basic functionality from host. Best Regards, Strahil Niolov On April 29, 2019 11:00:42 AM GMT+03:00, Solene Rapenne wrote: >On Sun, Apr 28, 2019 at 11:10:14AM +, Strahil Nikolov wrote: >> Hi All, >> I am new to openBSD and I really like the idea. Sadly I do not have >> suitable hardware to run on , thus I use KVM and I would be happy if >> anyone hint me of a working solution for Qemu Guest Agent. >> Anything I dig up (via google searches) show up only suggestions , >but >> nothing more.In openBSD 6.4 I successfully installed qemu (and thus >> the agent), but I can't understand how to get the device needed for >> communication with the host up and running. >> As I mainly know linux - I know that we need a kernel module that to >> be loaded and with combination of udev rules - the devices is created >> on the necessary location and with the correct rights.According to >> many google findings - openBSD doesn't support any more loadable >> kernel module support. >> I have tried to figure it out by myself, but I cannot find the >> necessary module needed, nor how to load it in a proper manner. >> Any hint is well appreciated. >> Best Regards,Strahil Nikolov >> > >qemu on openbsd doesn't support any hardware acceleration, and the >available version is quite old. > >I'm not sure it is compatible with libvirt. -- Sent from my Android device with K-9 Mail. Please excuse my brevity. -- Sent from my Android device with K-9 Mail. Please excuse my brevity.
Re: Qemu Agent assistance needed
On Sun, Apr 28, 2019 at 11:10:14AM +, Strahil Nikolov wrote: > Hi All, > I am new to openBSD and I really like the idea. Sadly I do not have > suitable hardware to run on , thus I use KVM and I would be happy if > anyone hint me of a working solution for Qemu Guest Agent. > Anything I dig up (via google searches) show up only suggestions , but > nothing more.In openBSD 6.4 I successfully installed qemu (and thus > the agent), but I can't understand how to get the device needed for > communication with the host up and running. > As I mainly know linux - I know that we need a kernel module that to > be loaded and with combination of udev rules - the devices is created > on the necessary location and with the correct rights.According to > many google findings - openBSD doesn't support any more loadable > kernel module support. > I have tried to figure it out by myself, but I cannot find the > necessary module needed, nor how to load it in a proper manner. > Any hint is well appreciated. > Best Regards,Strahil Nikolov > qemu on openbsd doesn't support any hardware acceleration, and the available version is quite old. I'm not sure it is compatible with libvirt.
Re: Qemu Agent assistance needed
Yes , but not only. I'm using oVirt - a KVM management tool and I can currently make a snapshot only by pausing the VM or by completely stopping it first. For now, it's not a big deal - as I'm still exploring openBSD , but who knows. Also the management interface cannot provide details about CPU and RAM usage , nor I cannot gracefully shut the VM down from the interface. The oVirt manager allows automatic evacuation of the VM, if it requires more memory/cpu than the host can currently providing (for a lab overcommitting is normal). I'm just looking to enable those fancy things that make our life easier. Best Regards, Strahil Nikolov On April 29, 2019 12:07:32 AM GMT+03:00, Tom Smyth wrote: >Hello Strahil, >what are you trying to achieve with the Qemu Guest Agent ? > >is it quiescing during backups .>? > > > > > > >On Sun, 28 Apr 2019 at 20:59, Kristjan Komloši > wrote: >> >> On Sun, 2019-04-28 at 11:10 +, Strahil Nikolov wrote: >> > Hi All, >> > I am new to openBSD and I really like the idea. Sadly I do not have >> > suitable hardware to run on , thus I use KVM and I would be happy >if >> > anyone hint me of a working solution for Qemu Guest Agent. >> > Anything I dig up (via google searches) show up only suggestions , >> > but nothing more.In openBSD 6.4 I successfully installed qemu (and >> > thus the agent), but I can't understand how to get the device >needed >> > for communication with the host up and running. >> > As I mainly know linux - I know that we need a kernel module that >to >> > be loaded and with combination of udev rules - the devices is >created >> > on the necessary location and with the correct rights.According to >> > many google findings - openBSD doesn't support any more loadable >> > kernel module support. >> > I have tried to figure it out by myself, but I cannot find the >> > necessary module needed, nor how to load it in a proper manner. >> > Any hint is well appreciated. >> > Best Regards,Strahil Nikolov >> >> Kernel modules don't exist under OpenBSD to ensure security, so don't >> go there. Communication with host is probably best done through the >> serial console. Take a look at the boot.conf(8) manpage. >> -- Sent from my Android device with K-9 Mail. Please excuse my brevity.
Re: Qemu Agent assistance needed
Hello Strahil, what are you trying to achieve with the Qemu Guest Agent ? is it quiescing during backups .>? On Sun, 28 Apr 2019 at 20:59, Kristjan Komloši wrote: > > On Sun, 2019-04-28 at 11:10 +, Strahil Nikolov wrote: > > Hi All, > > I am new to openBSD and I really like the idea. Sadly I do not have > > suitable hardware to run on , thus I use KVM and I would be happy if > > anyone hint me of a working solution for Qemu Guest Agent. > > Anything I dig up (via google searches) show up only suggestions , > > but nothing more.In openBSD 6.4 I successfully installed qemu (and > > thus the agent), but I can't understand how to get the device needed > > for communication with the host up and running. > > As I mainly know linux - I know that we need a kernel module that to > > be loaded and with combination of udev rules - the devices is created > > on the necessary location and with the correct rights.According to > > many google findings - openBSD doesn't support any more loadable > > kernel module support. > > I have tried to figure it out by myself, but I cannot find the > > necessary module needed, nor how to load it in a proper manner. > > Any hint is well appreciated. > > Best Regards,Strahil Nikolov > > Kernel modules don't exist under OpenBSD to ensure security, so don't > go there. Communication with host is probably best done through the > serial console. Take a look at the boot.conf(8) manpage. > -- Kindest regards, Tom Smyth.
Re: Qemu Agent assistance needed
On Sun, 2019-04-28 at 11:10 +, Strahil Nikolov wrote: > Hi All, > I am new to openBSD and I really like the idea. Sadly I do not have > suitable hardware to run on , thus I use KVM and I would be happy if > anyone hint me of a working solution for Qemu Guest Agent. > Anything I dig up (via google searches) show up only suggestions , > but nothing more.In openBSD 6.4 I successfully installed qemu (and > thus the agent), but I can't understand how to get the device needed > for communication with the host up and running. > As I mainly know linux - I know that we need a kernel module that to > be loaded and with combination of udev rules - the devices is created > on the necessary location and with the correct rights.According to > many google findings - openBSD doesn't support any more loadable > kernel module support. > I have tried to figure it out by myself, but I cannot find the > necessary module needed, nor how to load it in a proper manner. > Any hint is well appreciated. > Best Regards,Strahil Nikolov Kernel modules don't exist under OpenBSD to ensure security, so don't go there. Communication with host is probably best done through the serial console. Take a look at the boot.conf(8) manpage.
