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Commit 66d5b53e authored by Fuad Tabba's avatar Fuad Tabba Committed by Marc Zyngier
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KVM: arm64: Allocate memory mapped at hyp for host sve state in pKVM



Protected mode needs to maintain (save/restore) the host's sve
state, rather than relying on the host kernel to do that. This is
to avoid leaking information to the host about guests and the
type of operations they are performing.

As a first step towards that, allocate memory mapped at hyp, per
cpu, for the host sve state. The following patch will use this
memory to save/restore the host state.

Reviewed-by: default avatarOliver Upton <oliver.upton@linux.dev>
Signed-off-by: default avatarFuad Tabba <tabba@google.com>
Link: https://lore.kernel.org/r/20240603122852.3923848-6-tabba@google.com


Signed-off-by: default avatarMarc Zyngier <maz@kernel.org>
parent e511e08a
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