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 X-Spam-Level: X-Spam-Status: No, score=-17.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4AFE5C433DB for ; Thu, 18 Mar 2021 12:27:46 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C6C0F64F53 for ; Thu, 18 Mar 2021 12:27:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C6C0F64F53 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:Cc:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=ZFtTCrySV5pUWwITLh9DgHuMFB/8izlolT3o2uP3Iuo=; b=UffxgFoRJIrNzzloLlUS+IDbu K2rkdFWFcjaaHsEGE0UDkPeGV6WGzdn1zlT8Tw0mrjvnBsbO3Ai6bE8KUMko4fzrnPtyKaMGUmXuC WNYaobICoAkb0bu9gc6apbYgePmGtToANILnn4iREN4TsizrCmHsKPH715h87KXAt3m8ASGevfHf9 PRw5kEfTlt3Ly7uuB0PMUudNSNQna2zFORdnLM6nvrk9dK39gLaml4jbzTqbxd6qk7Gp94WRu6yn1 9NmtYYuXYwrliT8Z4a/YbauS2DiMvs4GTJIkTRj+Cj5E2ly3dPwi6fftd5mT6xCpK7xP3wpKggj53 zuK+/okBg==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lMrjM-005C0G-HH; Thu, 18 Mar 2021 12:26:24 +0000 Received: from mail.kernel.org ([198.145.29.99]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lMrim-005Bu2-Bo for linux-arm-kernel@lists.infradead.org; Thu, 18 Mar 2021 12:25:51 +0000 Received: from disco-boy.misterjones.org (disco-boy.misterjones.org [51.254.78.96]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E0D0E64F6C; Thu, 18 Mar 2021 12:25:46 +0000 (UTC) Received: from 78.163-31-62.static.virginmediabusiness.co.uk ([62.31.163.78] helo=why.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94) (envelope-from ) id 1lMrij-002OZW-3G; Thu, 18 Mar 2021 12:25:45 +0000 From: Marc Zyngier To: kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org Cc: dave.martin@arm.com, daniel.kiss@arm.com, Will Deacon , Catalin Marinas , James Morse , Julien Thierry , Suzuki K Poulose , broonie@kernel.org, ascull@google.com, qperret@google.com, kernel-team@android.com Subject: [PATCH v2 04/11] KVM: arm64: Introduce vcpu_sve_vq() helper Date: Thu, 18 Mar 2021 12:25:25 +0000 Message-Id: <20210318122532.505263-5-maz@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210318122532.505263-1-maz@kernel.org> References: <20210318122532.505263-1-maz@kernel.org> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 62.31.163.78 X-SA-Exim-Rcpt-To: kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org, dave.martin@arm.com, daniel.kiss@arm.com, will@kernel.org, catalin.marinas@arm.com, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com, broonie@kernel.org, ascull@google.com, qperret@google.com, kernel-team@android.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210318_122550_292717_ABADED30 X-CRM114-Status: GOOD ( 15.09 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The KVM code contains a number of "sve_vq_from_vl(vcpu->arch.sve_max_vl)" instances, and we are about to add more. Introduce vcpu_sve_vq() as a shorthand for this expression. Acked-by: Will Deacon Signed-off-by: Marc Zyngier --- arch/arm64/include/asm/kvm_host.h | 4 +++- arch/arm64/kvm/guest.c | 6 +++--- arch/arm64/kvm/hyp/include/hyp/switch.h | 2 +- 3 files changed, 7 insertions(+), 5 deletions(-) diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index fb1d78299ba0..e59b16008868 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -375,6 +375,8 @@ struct kvm_vcpu_arch { #define vcpu_sve_pffr(vcpu) (kern_hyp_va((vcpu)->arch.sve_state) + \ sve_ffr_offset((vcpu)->arch.sve_max_vl)) +#define vcpu_sve_max_vq(vcpu) sve_vq_from_vl((vcpu)->arch.sve_max_vl) + #define vcpu_sve_state_size(vcpu) ({ \ size_t __size_ret; \ unsigned int __vcpu_vq; \ @@ -382,7 +384,7 @@ struct kvm_vcpu_arch { if (WARN_ON(!sve_vl_valid((vcpu)->arch.sve_max_vl))) { \ __size_ret = 0; \ } else { \ - __vcpu_vq = sve_vq_from_vl((vcpu)->arch.sve_max_vl); \ + __vcpu_vq = vcpu_sve_max_vq(vcpu); \ __size_ret = SVE_SIG_REGS_SIZE(__vcpu_vq); \ } \ \ diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c index 9bbd30e62799..c763808cacdf 100644 --- a/arch/arm64/kvm/guest.c +++ b/arch/arm64/kvm/guest.c @@ -299,7 +299,7 @@ static int get_sve_vls(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg) memset(vqs, 0, sizeof(vqs)); - max_vq = sve_vq_from_vl(vcpu->arch.sve_max_vl); + max_vq = vcpu_sve_max_vq(vcpu); for (vq = SVE_VQ_MIN; vq <= max_vq; ++vq) if (sve_vq_available(vq)) vqs[vq_word(vq)] |= vq_mask(vq); @@ -427,7 +427,7 @@ static int sve_reg_to_region(struct sve_state_reg_region *region, if (!vcpu_has_sve(vcpu) || (reg->id & SVE_REG_SLICE_MASK) > 0) return -ENOENT; - vq = sve_vq_from_vl(vcpu->arch.sve_max_vl); + vq = vcpu_sve_max_vq(vcpu); reqoffset = SVE_SIG_ZREG_OFFSET(vq, reg_num) - SVE_SIG_REGS_OFFSET; @@ -437,7 +437,7 @@ static int sve_reg_to_region(struct sve_state_reg_region *region, if (!vcpu_has_sve(vcpu) || (reg->id & SVE_REG_SLICE_MASK) > 0) return -ENOENT; - vq = sve_vq_from_vl(vcpu->arch.sve_max_vl); + vq = vcpu_sve_max_vq(vcpu); reqoffset = SVE_SIG_PREG_OFFSET(vq, reg_num) - SVE_SIG_REGS_OFFSET; diff --git a/arch/arm64/kvm/hyp/include/hyp/switch.h b/arch/arm64/kvm/hyp/include/hyp/switch.h index d762d5bdc2d5..fb68271c1a0f 100644 --- a/arch/arm64/kvm/hyp/include/hyp/switch.h +++ b/arch/arm64/kvm/hyp/include/hyp/switch.h @@ -268,7 +268,7 @@ static inline bool __hyp_handle_fpsimd(struct kvm_vcpu *vcpu) if (sve_guest) { __sve_restore_state(vcpu_sve_pffr(vcpu), &vcpu->arch.ctxt.fp_regs.fpsr, - sve_vq_from_vl(vcpu->arch.sve_max_vl) - 1); + vcpu_sve_vq(vcpu) - 1); write_sysreg_el1(__vcpu_sys_reg(vcpu, ZCR_EL1), SYS_ZCR); } else { __fpsimd_restore_state(&vcpu->arch.ctxt.fp_regs); -- 2.29.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel