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Re: [PATCH v1 5/5] i386: Hyper-V VMBus ACPI DSDT entry
From: |
Roman Kagan |
Subject: |
Re: [PATCH v1 5/5] i386: Hyper-V VMBus ACPI DSDT entry |
Date: |
Wed, 8 Apr 2020 23:47:42 +0300 |
On Wed, Apr 08, 2020 at 07:16:39AM +0300, Jon Doron wrote:
> On 07/04/2020, Maciej S. Szmigiero wrote:
> > On 07.04.2020 20:56, Roman Kagan wrote:
> > > On Mon, Apr 06, 2020 at 11:20:39AM +0300, Jon Doron wrote:
> > > > Well I want it to be merged in :-)
> > >
> > > Hmm I'm curious why, it has little to offer over virtio.
> > >
> > > Anyway the series you've posted seems to be based on a fairly old
> > > version.
> > >
> > > The one in openvz repo is more recent. It's still in need for
> > > improvement, too, but should be testable at least.
>
> Well I have implemented the hyperv synthetic kernel debugger interface, but
> on Windows 10 it requires to have a working VMBus (it's not really using it,
> but without a function vmbus that will answer to the initiate contact then
> the kdnet will simply be stuck in a loop.
I see, thanks, I've never heard of this before.
> With the synthetic kernel debugger interface you can debug older OS (Win7 up
> to latest Win10). The benefit is that its much faster than all other
> interfaces.
I guess you compare it to debugging via serial port. I wonder where the
difference comes from? I thought the transport didn't require any
significant throughput, and latency-wise the (emulated) serial port was
just as good as any other. Am I missing something?
Thanks,
Roman.
> In addition to that Michael Kelley from Microsoft has informed us that
> Microsoft might be dropped the synthetic kernel debugger interface sometime
> in the future, and it seems like the new mode is simply to use hvnet device
> for the communication (which is again much faster).
>
> Cheers,
> -- Jon.
> >
> > Isn't the one at
> > https://src.openvz.org/projects/UP/repos/qemu/commits?until=refs%2Fheads%2Fvmbus
> > the latest one?
> >
> > It seems to be last changed in October 2019 - is there a
> > later one?
> >
> > > Thanks,
> > > Roman.
> >
> > Thanks,
> > Maciej
- Re: [PATCH v1 5/5] i386: Hyper-V VMBus ACPI DSDT entry, (continued)
- Re: [PATCH v1 5/5] i386: Hyper-V VMBus ACPI DSDT entry, Jon Doron, 2020/04/03
- Re: [PATCH v1 5/5] i386: Hyper-V VMBus ACPI DSDT entry, Jon Doron, 2020/04/03
- Re: [PATCH v1 5/5] i386: Hyper-V VMBus ACPI DSDT entry, Maciej S. Szmigiero, 2020/04/03
- Re: [PATCH v1 5/5] i386: Hyper-V VMBus ACPI DSDT entry, Maciej S. Szmigiero, 2020/04/03
- Re: [PATCH v1 5/5] i386: Hyper-V VMBus ACPI DSDT entry, Maciej S. Szmigiero, 2020/04/03
- Re: [PATCH v1 5/5] i386: Hyper-V VMBus ACPI DSDT entry, Roman Kagan, 2020/04/06
- Re: [PATCH v1 5/5] i386: Hyper-V VMBus ACPI DSDT entry, Jon Doron, 2020/04/06
- Re: [PATCH v1 5/5] i386: Hyper-V VMBus ACPI DSDT entry, Roman Kagan, 2020/04/07
- Re: [PATCH v1 5/5] i386: Hyper-V VMBus ACPI DSDT entry, Maciej S. Szmigiero, 2020/04/07
- Re: [PATCH v1 5/5] i386: Hyper-V VMBus ACPI DSDT entry, Jon Doron, 2020/04/08
- Re: [PATCH v1 5/5] i386: Hyper-V VMBus ACPI DSDT entry,
Roman Kagan <=
- Re: [PATCH v1 5/5] i386: Hyper-V VMBus ACPI DSDT entry, Jon Doron, 2020/04/08
- Re: [PATCH v1 5/5] i386: Hyper-V VMBus ACPI DSDT entry, Roman Kagan, 2020/04/08
- Re: [PATCH v1 5/5] i386: Hyper-V VMBus ACPI DSDT entry, Maciej S. Szmigiero, 2020/04/08
Re: [PATCH v1 5/5] i386: Hyper-V VMBus ACPI DSDT entry, Igor Mammedov, 2020/04/06
[PATCH v1 4/5] vmbus: vmbus implementation, Jon Doron, 2020/04/03
Re: [PATCH v1 0/5] hyperv: VMBus implementation, no-reply, 2020/04/03