[PATCH 2/8] KVM: arm64: Remove host FPSIMD saving for non-protected KVM
Mark Brown
broonie at kernel.org
Tue Feb 4 08:55:25 PST 2025
On Tue, Feb 04, 2025 at 03:20:54PM +0000, Mark Rutland wrote:
> Now that the host eagerly saves its own FPSIMD/SVE/SME state,
> non-protected KVM never needs to save the host FPSIMD/SVE/SME state,
> and the code to do this is never used. Protected KVM still needs to
> save/restore the host FPSIMD/SVE state to avoid leaking guest state to
> the host (and to avoid revealing to the host whether the guest used
> FPSIMD/SVE/SME), and that code needs to be retained.
Reviewed-by: Mark Brown <broonie at kernel.org>
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