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Arch-neutral name for hardware interrupt support
- To: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Mon, 1 Nov 2021 10:47:26 +0000
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- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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?
~Andrew
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