KVM: arm64: nv: Add emulation of AT S12E{0,1}{R,W}

Browse source

On the face of it, AT S12E{0,1}{R,W} is pretty simple. It is the
combination of AT S1E{0,1}{R,W}, followed by an extra S2 walk.

However, there is a great deal of complexity coming from combining
the S1 and S2 attributes to report something consistent in PAR_EL1.

This is an absolute mine field, and I have a splitting headache.

Signed-off-by: Marc Zyngier <maz@kernel.org>

...

This commit is contained in:

Marc Zyngier 2024-06-19 08:44:52 +01:00

parent e794049b9a

commit be04cebf3e

2 changed files with 254 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

arch/arm64/include/asm/kvm_asm.h

View file

253

arch/arm64/kvm/at.c

View file