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Re: Arch-neutral name for hardware interrupt support
- To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Tue, 2 Nov 2021 13:59:54 +0100
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- Cc: Wei Liu <wl@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Jane Malalane <jane.malalane@xxxxxxxxxx>, Bobby Eshleman <bobbyeshleman@xxxxxxxxx>, Alistair Francis <alistair.francis@xxxxxxx>, Connor Davis <connojdavis@xxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Tue, 02 Nov 2021 13:00:17 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 01.11.2021 11:47, Andrew Cooper wrote:
> Hello,
>
> On ARM, the GIC is a hard prerequisite for VMs.
>
> I can't remember what the state of RISCV is, but IIRC there is still
> some debate over how interrupts are expected to work under virt.
>
> On x86, the story is very different. PV have no hardware assistance,
> while HVM hardware assistance depends on hardware support. Therefore we
> want to introduce a new CDF flag so we can control the setting per
> domain, rather than globally as it is done now.
>
> This brings us to the question of what a suitable architecture name
> would be.
>
> Hardware Virtual Interrupts is a little too close to Hardware Virtual
> (Machine) Introspection, and Hardware Assisted Interrupts (mirroring
> HAP) doesn't seem great either.
>
> Thoughts / ideas / suggestions?
As per the subject of your mail simply "hwint"? But, as Roger says, a
good name certainly depends on the scope of what exactly you want to
cover.
Jan
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