Displaying 8 results from an estimated 8 matches for "qemudomainmemorydevicealignsize".
2020 Jul 02
3
Two questions about NVDIMM devices
...VDIMM support in libvirt where I'm not
sure all the parties (libvirt & I) do the things correctly.
The first problem is with memory alignment and size changes. In
addition to the size changes applied to NVDIMMs by QEMU, libvirt also
makes some NVDIMM size changes for better alignments, in
qemuDomainMemoryDeviceAlignSize. This can lead to the size being
rounded up, exceeding the size of the backing device and QEMU failing to
start the VM for that reason (I've experienced that actually). I work
with emulated NVDIMM devices, not a bare metal hardware, so one might
argue that in practice the device sizes should...
2020 Sep 10
2
Re: Two questions about NVDIMM devices
...re all the parties (libvirt & I) do the things correctly.
>>
>> The first problem is with memory alignment and size changes. In
>> addition to the size changes applied to NVDIMMs by QEMU, libvirt also
>> makes some NVDIMM size changes for better alignments, in
>> qemuDomainMemoryDeviceAlignSize. This can lead to the size being
>> rounded up, exceeding the size of the backing device and QEMU failing to
>> start the VM for that reason (I've experienced that actually). I work
>> with emulated NVDIMM devices, not a bare metal hardware, so one might
>> argue that...
2020 Sep 10
2
Re: Two questions about NVDIMM devices
...hings correctly.
>> >>
>> >> The first problem is with memory alignment and size changes. In
>> >> addition to the size changes applied to NVDIMMs by QEMU, libvirt also
>> >> makes some NVDIMM size changes for better alignments, in
>> >> qemuDomainMemoryDeviceAlignSize. This can lead to the size being
>> >> rounded up, exceeding the size of the backing device and QEMU failing to
>> >> start the VM for that reason (I've experienced that actually). I work
>> >> with emulated NVDIMM devices, not a bare metal hardware, so one...
2020 Jul 02
0
Re: Two questions about NVDIMM devices
...I'm not
> sure all the parties (libvirt & I) do the things correctly.
>
> The first problem is with memory alignment and size changes. In
> addition to the size changes applied to NVDIMMs by QEMU, libvirt also
> makes some NVDIMM size changes for better alignments, in
> qemuDomainMemoryDeviceAlignSize. This can lead to the size being
> rounded up, exceeding the size of the backing device and QEMU failing to
> start the VM for that reason (I've experienced that actually). I work
> with emulated NVDIMM devices, not a bare metal hardware, so one might
> argue that in practice the...
2020 Sep 10
0
Re: Two questions about NVDIMM devices
...rt & I) do the things correctly.
> >>
> >> The first problem is with memory alignment and size changes. In
> >> addition to the size changes applied to NVDIMMs by QEMU, libvirt also
> >> makes some NVDIMM size changes for better alignments, in
> >> qemuDomainMemoryDeviceAlignSize. This can lead to the size being
> >> rounded up, exceeding the size of the backing device and QEMU failing to
> >> start the VM for that reason (I've experienced that actually). I work
> >> with emulated NVDIMM devices, not a bare metal hardware, so one might
>...
2020 Sep 10
0
Re: Two questions about NVDIMM devices
...;> >>
> >> >> The first problem is with memory alignment and size changes. In
> >> >> addition to the size changes applied to NVDIMMs by QEMU, libvirt also
> >> >> makes some NVDIMM size changes for better alignments, in
> >> >> qemuDomainMemoryDeviceAlignSize. This can lead to the size being
> >> >> rounded up, exceeding the size of the backing device and QEMU failing to
> >> >> start the VM for that reason (I've experienced that actually). I work
> >> >> with emulated NVDIMM devices, not a bare metal h...
2020 Jul 02
2
Re: Two questions about NVDIMM devices
...re all the parties (libvirt & I) do the things correctly.
>>
>> The first problem is with memory alignment and size changes. In
>> addition to the size changes applied to NVDIMMs by QEMU, libvirt also
>> makes some NVDIMM size changes for better alignments, in
>> qemuDomainMemoryDeviceAlignSize. This can lead to the size being
>> rounded up, exceeding the size of the backing device and QEMU failing to
>> start the VM for that reason (I've experienced that actually). I work
>> with emulated NVDIMM devices, not a bare metal hardware, so one might
>> argue that...
2020 Sep 10
2
Re: Two questions about NVDIMM devices
...gt;>
>>>>>> The first problem is with memory alignment and size changes. In
>>>>>> addition to the size changes applied to NVDIMMs by QEMU, libvirt also
>>>>>> makes some NVDIMM size changes for better alignments, in
>>>>>> qemuDomainMemoryDeviceAlignSize. This can lead to the size being
>>>>>> rounded up, exceeding the size of the backing device and QEMU failing to
>>>>>> start the VM for that reason (I've experienced that actually). I work
>>>>>> with emulated NVDIMM devices, not a bare m...