Re: Two questions about NVDIMM devices

On 9/14/20 1:40 PM, Andrea Bolognani wrote: On Thu, 2020-09-10 at 20:53 +0200, Michal Privoznik wrote: On 9/10/20 4:56 PM, Daniel P. Berrangé wrote: On Thu, Sep 10, 2020 at 04:54:08PM +0200, Milan Zamazal wrote: Daniel P. Berrangé writes: If we're enforcing this 1 MB rounding though, we

Re: Two questions about NVDIMM devices

On Thu, 2020-09-10 at 20:53 +0200, Michal Privoznik wrote: > On 9/10/20 4:56 PM, Daniel P. Berrangé wrote: > > On Thu, Sep 10, 2020 at 04:54:08PM +0200, Milan Zamazal wrote: > > > Daniel P. Berrangé writes: > > > > > > If we're enforcing this 1 MB rounding though, we really should be > > > > > >

Re: Two questions about NVDIMM devices

On 9/10/20 4:56 PM, Daniel P. Berrangé wrote: On Thu, Sep 10, 2020 at 04:54:08PM +0200, Milan Zamazal wrote: Daniel P. Berrangé writes: On Thu, Sep 10, 2020 at 04:26:40PM +0200, Milan Zamazal wrote: Daniel P. Berrangé writes: On Thu, Jul 02, 2020 at 01:21:15PM +0200, Milan Zamazal

Re: Two questions about NVDIMM devices

On Thu, Sep 10, 2020 at 04:54:08PM +0200, Milan Zamazal wrote: > Daniel P. Berrangé writes: > > > On Thu, Sep 10, 2020 at 04:26:40PM +0200, Milan Zamazal wrote: > >> Daniel P. Berrangé writes: > >> > > > >> > On Thu, Jul 02, 2020 at 01:21:15PM +0200, Milan Zamazal wrote: > >> >> Hi, > >> >> >

Re: Two questions about NVDIMM devices

Daniel P. Berrangé writes: > On Thu, Sep 10, 2020 at 04:26:40PM +0200, Milan Zamazal wrote: >> Daniel P. Berrangé writes: >> > >> > On Thu, Jul 02, 2020 at 01:21:15PM +0200, Milan Zamazal wrote: >> >> Hi, >> >> >> > >> >> I've met two situations with NVDIMM support in libvirt where I'm not >>

Re: Two questions about NVDIMM devices

On Thu, Sep 10, 2020 at 04:26:40PM +0200, Milan Zamazal wrote: > Daniel P. Berrangé writes: > > > On Thu, Jul 02, 2020 at 01:21:15PM +0200, Milan Zamazal wrote: > >> Hi, > >> > > > >> I've met two situations with NVDIMM support in libvirt where I'm not > >> sure all the parties (libvirt & I) do

Re: Two questions about NVDIMM devices

Daniel P. Berrangé writes: > On Thu, Jul 02, 2020 at 01:21:15PM +0200, Milan Zamazal wrote: >> Hi, >> > >> I've met two situations with NVDIMM 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

Re: NVDIMM in devdax mode and SELinux (was: Two questions about NVDIMM devices)

On Thu, Jul 09, 2020 at 11:53:19AM +0200, Milan Zamazal wrote: > Milan Zamazal writes: > > > Daniel P. Berrangé writes: > > > >> On Thu, Jul 02, 2020 at 01:21:15PM +0200, Milan Zamazal wrote: > >>> The second problem is that a VM fails to start with a backing NVDIMM in > >>> devdax mode due to

NVDIMM in devdax mode and SELinux (was: Two questions about NVDIMM devices)

Milan Zamazal writes: > Daniel P. Berrangé writes: > >> On Thu, Jul 02, 2020 at 01:21:15PM +0200, Milan Zamazal wrote: >>> The second problem is that a VM fails to start with a backing NVDIMM in >>> devdax mode due to SELinux preventing access to the /dev/dax* device (it >>> doesn't happen with

Re: Two questions about NVDIMM devices

Daniel P. Berrangé writes: > On Thu, Jul 02, 2020 at 01:21:15PM +0200, Milan Zamazal wrote: >> Hi, >> > >> I've met two situations with NVDIMM 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

Re: Two questions about NVDIMM devices

On Thu, Jul 02, 2020 at 01:21:15PM +0200, Milan Zamazal wrote: > Hi, > > I've met two situations with NVDIMM 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

Two questions about NVDIMM devices

Hi, I've met two situations with NVDIMM 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