From c13d1683df16db16c91372177ca10c31677b5ed5 Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Mon, 26 Oct 2015 08:34:09 +0000 Subject: arm64: KVM: Implement fpsimd save/restore Implement the fpsimd save restore, keeping the lazy part in assembler (as returning to C would be overkill). Signed-off-by: Marc Zyngier Reviewed-by: Christoffer Dall --- arch/arm64/kvm/hyp/fpsimd.S | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 arch/arm64/kvm/hyp/fpsimd.S (limited to 'arch/arm64/kvm/hyp/fpsimd.S') diff --git a/arch/arm64/kvm/hyp/fpsimd.S b/arch/arm64/kvm/hyp/fpsimd.S new file mode 100644 index 000000000000..da3f22c7f14a --- /dev/null +++ b/arch/arm64/kvm/hyp/fpsimd.S @@ -0,0 +1,33 @@ +/* + * Copyright (C) 2015 - ARM Ltd + * Author: Marc Zyngier + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include + +#include + + .text + .pushsection .hyp.text, "ax" + +ENTRY(__fpsimd_save_state) + fpsimd_save x0, 1 + ret +ENDPROC(__fpsimd_save_state) + +ENTRY(__fpsimd_restore_state) + fpsimd_restore x0, 1 + ret +ENDPROC(__fpsimd_restore_state) -- cgit v1.2.3