[PATCH 1/8] KVM: arm64: Unconditionally save+flush host FPSIMD/SVE/SME state

[Mark Brown]

On Tue, Feb 04, 2025 at 03:20:53PM +0000, Mark Rutland wrote:
> There are several problems with the way hyp code lazily saves the host's
> FPSIMD/SVE state, including:

...

> Avoid these by eagerly saving and "flushing" the host's FPSIMD/SVE/SME
> state when loading a vCPU such that KVM does not need to save any of the
> host's FPSIMD/SVE/SME state. For clarity, fpsimd_kvm_prepare() is
> removed and the necessary call to fpsimd_save_and_flush_cpu_state() is
> placed in kvm_arch_vcpu_load_fp(). As 'fpsimd_state' and 'fpmr_ptr'
> should not be used, they are set to NULL; all uses of these will be
> removed in subsequent patches.

This avoid any confusion so

Reviewed-by: Mark Brown <broonie at kernel.org>
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