On Wed, Sep 21, 2022 at 06:31:28PM +0100, Marc Zyngier wrote:
> Mark Brown wrote:
> > There's no use for that hook now though.
> Care to clarify?
We don't do anything for SME even if we were to support SME with
no FP properly.
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On Tue, 20 Sep 2022 21:21:33 +0100,
Mark Brown wrote:
>
> [1 ]
> On Tue, Sep 20, 2022 at 05:44:01PM +0100, Marc Zyngier wrote:
> > Mark Brown wrote:
>
> > > void kvm_arch_vcpu_load_fp(struct kvm_vcpu *vcpu)
> > > {
> > > BUG_ON(!current->mm);
> > > - BUG_ON(test_thread_flag(TIF_SVE));
> >
On Tue, Sep 20, 2022 at 05:44:01PM +0100, Marc Zyngier wrote:
> Mark Brown wrote:
> > void kvm_arch_vcpu_load_fp(struct kvm_vcpu *vcpu)
> > {
> > BUG_ON(!current->mm);
> > - BUG_ON(test_thread_flag(TIF_SVE));
> > +
> > + fpsimd_kvm_prepare();
>
> Why is this *before* the check against
On Mon, 15 Aug 2022 23:55:23 +0100,
Mark Brown wrote:
>
> Since 8383741ab2e773a99 (KVM: arm64: Get rid of host SVE tracking/saving)
> KVM has not tracked the host SVE state, relying on the fact that we
> currently disable SVE whenever we perform a syscall. This may not be true
> in future since
Since 8383741ab2e773a99 (KVM: arm64: Get rid of host SVE tracking/saving)
KVM has not tracked the host SVE state, relying on the fact that we
currently disable SVE whenever we perform a syscall. This may not be true
in future since performance optimisation may result in us keeping SVE
enabled in
