[RFC 0/2] irqchip/gic-v3-its: Introduce virtual ITS

Boqun Feng boqun.feng at gmail.com
Tue Jun 22 08:53:11 PDT 2021


Hi Marc,

Here is an RFC for supporting platforms having LPI supported but without
ITS. And this is for the virtual PCI support for ARM64 Hyper-V guests.
We currently choose this approach (LPI w/o ITS) because a) it's allowed
for GICv3 and b) ITS may not be a more efficient way to configure LPIs
compared to hypercalls, but we'd like to get feedbacks from the
community.

Besides, patch #1 fixes a bug which I found while I was at it.

Looking forwards to any comment and suggestion!

Regards,
Boqun

Boqun Feng (2):
  irqchip/gic-v3-its: Free collections if its domain initialization
    fails
  irqchip/gic-v3-its: Introduce virtual ITS

 drivers/irqchip/irq-gic-v3-its.c | 124 ++++++++++++++++++++++++++++---
 1 file changed, 115 insertions(+), 9 deletions(-)

-- 
2.30.2




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