KVM: arm64: Track SVE state in the hypervisor vcpu structure

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When dealing with a guest with SVE enabled, make sure the host SVE
state is pinned at EL2 S1, and that the hypervisor vCPU state is
correctly initialised (and then unpinned on teardown).

Co-authored-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Fuad Tabba <tabba@google.com>
Signed-off-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20250416152648.2982950-2-qperret@google.com
Signed-off-by: Marc Zyngier <maz@kernel.org>

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Fuad Tabba 2025-04-16 15:26:41 +00:00 • committed by Marc Zyngier

parent b4432656b3

commit 5db1bef933

3 changed files with 51 additions and 12 deletions

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12

arch/arm64/include/asm/kvm_host.h

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4

arch/arm64/kvm/hyp/nvhe/hyp-main.c

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47

arch/arm64/kvm/hyp/nvhe/pkvm.c

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