From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 34CABC43217 for ; Fri, 22 Oct 2021 18:56:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1A9F66108D for ; Fri, 22 Oct 2021 18:56:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233840AbhJVS6V (ORCPT ); Fri, 22 Oct 2021 14:58:21 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:41120 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233059AbhJVS6O (ORCPT ); Fri, 22 Oct 2021 14:58:14 -0400 Message-ID: <20211022185313.074853631@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1634928955; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=Q1D0MwonvmkUGVRF+jJM2/P6KTp+ZP3J0eVWNnnOvTE=; b=sFVZohZ+IzEXGu7FKNMMroFZxxCeMo1VlgLowt3F/E69JG2tX9onR7iR/CQqXohUMQCgOJ 5i6lcnXoD5oxOuJ7jk62gjR/tv1HGS3xqv3H/+MRmAGmzUbQ7hfWtvyRb2YTGo00eIPoyZ WLBNnZp+xqA/zQa8aDb+rno4IeJJ/uNSeGwJtvsd9bF8r2JQXSWKL+7zlhQ6HhDKEFNtDR gZWBM5ppe/KBuyfhmtQBdVgef2e5InK0ou1lx2aS3IrEEP8hPiDBVXxZQo4HXrY9WLZSCz ku7okfcTDxaROL7Jfff3+vpoXOfAKoa0fJkge5zjQ0W0T+E55oJ7Q6hTQNiPng== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1634928955; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=Q1D0MwonvmkUGVRF+jJM2/P6KTp+ZP3J0eVWNnnOvTE=; b=akyz2fS2yiySaDU80qxvDBnNyHsozzXhbwJn9q+5St2cTjAkcMVL0Mcw2S4xKY8u2C79ub mW2azR0eapbtjQDA== From: Thomas Gleixner To: LKML Cc: x86@kernel.org, "Liu, Jing2" , Paolo Bonzini , "Bae, Chang Seok" , Dave Hansen , Arjan van de Ven , kvm@vger.kernel.org, "Nakajima, Jun" , Sean Christopherson Subject: [patch V2 4/4] x86/fpu: Remove old KVM FPU interface References: <20211022184540.581350173@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Date: Fri, 22 Oct 2021 20:55:54 +0200 (CEST) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org No more users. Signed-off-by: Thomas Gleixner --- arch/x86/include/asm/fpu/api.h | 2 -- arch/x86/kernel/fpu/core.c | 32 -------------------------------- 2 files changed, 34 deletions(-) --- --- a/arch/x86/include/asm/fpu/api.h +++ b/arch/x86/include/asm/fpu/api.h @@ -131,14 +131,12 @@ static inline void fpstate_init_soft(str DECLARE_PER_CPU(struct fpu *, fpu_fpregs_owner_ctx); /* fpstate-related functions which are exported to KVM */ -extern void fpu_init_fpstate_user(struct fpu *fpu); extern void fpstate_clear_xstate_component(struct fpstate *fps, unsigned int xfeature); /* KVM specific functions */ extern bool fpu_alloc_guest_fpstate(struct fpu_guest *gfpu); extern void fpu_free_guest_fpstate(struct fpu_guest *gfpu); extern int fpu_swap_kvm_fpstate(struct fpu_guest *gfpu, bool enter_guest); -extern void fpu_swap_kvm_fpu(struct fpu *save, struct fpu *rstor, u64 restore_mask); extern void fpu_copy_guest_fpstate_to_uabi(struct fpu_guest *gfpu, void *buf, unsigned int size, u32 pkru); extern int fpu_copy_uabi_to_guest_fpstate(struct fpu_guest *gfpu, const void *buf, u64 xcr0, u32 *vpkru); --- a/arch/x86/kernel/fpu/core.c +++ b/arch/x86/kernel/fpu/core.c @@ -245,29 +245,6 @@ int fpu_swap_kvm_fpstate(struct fpu_gues } EXPORT_SYMBOL_GPL(fpu_swap_kvm_fpstate); -void fpu_swap_kvm_fpu(struct fpu *save, struct fpu *rstor, u64 restore_mask) -{ - fpregs_lock(); - - if (save) { - struct fpstate *fpcur = current->thread.fpu.fpstate; - - if (test_thread_flag(TIF_NEED_FPU_LOAD)) - memcpy(&save->fpstate->regs, &fpcur->regs, fpcur->size); - else - save_fpregs_to_fpstate(save); - } - - if (rstor) { - restore_mask &= XFEATURE_MASK_FPSTATE; - restore_fpregs_from_fpstate(rstor->fpstate, restore_mask); - } - - fpregs_mark_activate(); - fpregs_unlock(); -} -EXPORT_SYMBOL_GPL(fpu_swap_kvm_fpu); - void fpu_copy_guest_fpstate_to_uabi(struct fpu_guest *gfpu, void *buf, unsigned int size, u32 pkru) { @@ -437,15 +414,6 @@ void fpstate_reset(struct fpu *fpu) __fpstate_reset(fpu->fpstate); } -#if IS_ENABLED(CONFIG_KVM) -void fpu_init_fpstate_user(struct fpu *fpu) -{ - fpstate_reset(fpu); - fpstate_init_user(fpu->fpstate); -} -EXPORT_SYMBOL_GPL(fpu_init_fpstate_user); -#endif - /* Clone current's FPU state on fork */ int fpu_clone(struct task_struct *dst) {