Thread (37 messages) 37 messages, 4 authors, 2015-09-04

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  1. Posted marc.zyngier@arm.com (Marc Zyngier)
  2. Reviewed-by Marc Zyngier

[PATCH 4/9] arm/arm64: Implement GICD_ICFGR as RO for PPIs

From: Marc Zyngier <hidden>
Date: 2015-09-03 15:03:58
Also in: kvm, kvmarm

On 30/08/15 14:54, Christoffer Dall wrote:
The GICD_ICFGR allows the bits for the SGIs and PPIs to be read only.
We currently simulate this behavior by writing a hardcoded value to the
register for the SGIs and PPIs on every write of these bits to the
register (ignoring what the guest actually wrote), and by writing the
same value as the reset value to the register.

This is a bit counter-intuitive, as the register is RO for these bits,
and we can just implement it that way, allowing us to control the value
of the bits purely in the reset code.

Signed-off-by: Christoffer Dall <redacted>
Reviewed-by: Marc Zyngier <redacted>

	M.
-- 
Jazz is not dead. It just smells funny...
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