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Message-ID: <bfe244a08572b1d57dcb5c538bcb70e9f45761f6.camel@infradead.org>
Subject: Re: [PATCH] xen: Allow platform PCI interrupt to be shared
From:   David Woodhouse <dwmw2@infradead.org>
To:     Andrew Cooper <Andrew.Cooper3@citrix.com>,
        Juergen Gross <jgross@suse.com>,
        Stefano Stabellini <sstabellini@kernel.org>,
        xen-devel <xen-devel@lists.xenproject.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Paul Durrant <paul@xen.org>
Date:   Wed, 18 Jan 2023 14:43:13 +0000
In-Reply-To: <d45d172b-0d9e-a45c-36da-3ed42c909081@citrix.com>
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         <e0b75988-bee6-e0c7-0dda-86e1e973ba74@citrix.com>
         <82e6a68f3cb8c0e440f7dc848fa3444725b3f893.camel@infradead.org>
         <973f9ebd-173e-6753-7799-a660994e38de@citrix.com>
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         <d45d172b-0d9e-a45c-36da-3ed42c909081@citrix.com>
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On Wed, 2023-01-18 at 14:39 +0000, Andrew Cooper wrote:
> On 18/01/2023 2:26 pm, David Woodhouse wrote:?
> > > There is no actual thing called PVHVM.=C2=A0 That diagram has caused =
far more
> > > damage than good...
> > >
> > > There's HVM (and by this, I mean the hypervisor's interpretation mean=
ing
> > > VT-x or SVM), and a spectrum of things the guest kernel can do if it
> > > desires.
> > >=20
> > > I'm pretty sure Linux knows all of them.
> >
> > But don't we want to refrain from providing the legacy PC platform devi=
ces?
>=20
> That also exists and works fine (and is one slice on the spectrum).=C2=A0=
 KVM
> even borrowed our PVH boot API because we'd already done the hard work
> in Linux.

Ah, but it doesn't exist in qemu (on KVM) yet ;)

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