Re: [PATCH RFC v1 0/2] VM fork detection for RNG

On Thu, Feb 24, 2022 at 11:57:34AM +0100, Jason A. Donenfeld wrote: > On Thu, Feb 24, 2022 at 11:56 AM Daniel P. Berrangé > wrote: > > IIRC this part of the QEMU doc was making an implicit assumption > > about the way QEMU is to be used by mgmt apps doing snapshots. > > > > Instead of using the '

Re: [PATCH RFC v1 0/2] VM fork detection for RNG

On 24.02.22 11:43, Daniel P. Berrangé wrote: On Thu, Feb 24, 2022 at 09:53:59AM +0100, Alexander Graf wrote: Hey Jason, On 23.02.22 14:12, Jason A. Donenfeld wrote: This small series picks up work from Amazon that seems to have stalled out later year around this time: listening for the vmgeni

Re: [PATCH RFC v1 0/2] VM fork detection for RNG

On Thu, Feb 24, 2022 at 11:56 AM Daniel P. Berrangé wrote: > IIRC this part of the QEMU doc was making an implicit assumption > about the way QEMU is to be used by mgmt apps doing snapshots. > > Instead of using the 'loadvm' command on the existing running QEMU > process, the doc seems to tacitly

Re: [PATCH RFC v1 0/2] VM fork detection for RNG

On Thu, Feb 24, 2022 at 09:22:50AM +0100, Laszlo Ersek wrote: > (+Daniel, +Rich) > > On 02/23/22 17:08, Jason A. Donenfeld wrote: > > On Wed, Feb 23, 2022 at 2:12 PM Jason A. Donenfeld wrote: > >> second patch is the reason this is just an RFC: it's a cleanup of the > >> ACPI driver from last yea

Re: [PATCH RFC v1 0/2] VM fork detection for RNG

Hi Alex, Strangely your message never made it to me, and I had to pull this out of Lore after seeing Daniel's reply to it. I wonder what's up. On Thu, Feb 24, 2022 at 09:53:59AM +0100, Alexander Graf wrote: > The main problem with VMGenID is that it is inherently racy. There will > always be a (

Re: [PATCH RFC v1 0/2] VM fork detection for RNG

Hi Lazlo, Thanks for your reply. On Thu, Feb 24, 2022 at 9:23 AM Laszlo Ersek wrote: > QEMU's related design is documented in > . I'll link to this document on the 2/2 patch next to the other ones. > "they can also use the data

Re: [PATCH RFC v1 0/2] VM fork detection for RNG

On Thu, Feb 24, 2022 at 09:53:59AM +0100, Alexander Graf wrote: > Hey Jason, > > On 23.02.22 14:12, Jason A. Donenfeld wrote: > > This small series picks up work from Amazon that seems to have stalled > > out later year around this time: listening for the vmgenid ACPI > > notification, and using i

Re: [PATCH RFC v1 0/2] VM fork detection for RNG

Hey Jason, On 23.02.22 14:12, Jason A. Donenfeld wrote: This small series picks up work from Amazon that seems to have stalled out later year around this time: listening for the vmgenid ACPI notification, and using it to "do something." Last year, that something involved a complicated userspace

Re: [PATCH RFC v1 0/2] VM fork detection for RNG

(+Daniel, +Rich) On 02/23/22 17:08, Jason A. Donenfeld wrote: > On Wed, Feb 23, 2022 at 2:12 PM Jason A. Donenfeld wrote: >> second patch is the reason this is just an RFC: it's a cleanup of the >> ACPI driver from last year, and I don't really have much experience >> writing, testing, debugging,

Re: [PATCH RFC v1 0/2] VM fork detection for RNG

On Wed, Feb 23, 2022 at 5:08 PM Jason A. Donenfeld wrote: > > On Wed, Feb 23, 2022 at 2:12 PM Jason A. Donenfeld wrote: > > second patch is the reason this is just an RFC: it's a cleanup of the > > ACPI driver from last year, and I don't really have much experience > > writing, testing, debugging

Re: [PATCH RFC v1 0/2] VM fork detection for RNG

On Wed, Feb 23, 2022 at 2:12 PM Jason A. Donenfeld wrote: > second patch is the reason this is just an RFC: it's a cleanup of the > ACPI driver from last year, and I don't really have much experience > writing, testing, debugging, or maintaining these types of drivers. > Ideally this thread would

[PATCH RFC v1 0/2] VM fork detection for RNG

This small series picks up work from Amazon that seems to have stalled out later year around this time: listening for the vmgenid ACPI notification, and using it to "do something." Last year, that something involved a complicated userspace mmap chardev, which seems frought with difficulty. This yea