Received: by 2002:a05:6a10:8c0a:0:0:0:0 with SMTP id go10csp4039358pxb; Mon, 1 Feb 2021 10:45:55 -0800 (PST) X-Google-Smtp-Source: ABdhPJxmg0Nnw7FPfnwFCcdoYFBuhQGkRF6ERJqPiBjcIh58moSHZGMeIK8bL6HJaeCXF+mwHvsE X-Received: by 2002:a05:6402:3589:: with SMTP id y9mr20515901edc.344.1612205155678; Mon, 01 Feb 2021 10:45:55 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1612205155; cv=none; d=google.com; s=arc-20160816; b=v58JNYNV15dipl216hAHjYMG8mcuLuKHO0CIQHLAfmWZiKNDDUY+PfplHwXbgASkIO S+qJklcFZ0LzpOLLEeDt/hLR3nWH/TSfvoxh7ispMxQAGiZf61iiY3Ue5hzJqBAcNbwu 5vzJsSR2KAJmu9wAC+rr0u6/Wxf5gN53S0pAe81IMQRlS9exzOPFuTwHFgPDn3ka0BwR COcZMfXZo3BDuJgkqj61ZcQJ8+rX1so4o6Lqfzg2G3T5bvDYB8CIcS0fFxPy8HXGpjT9 F3JamY05xJ8XnAAJ0DXLop9Yg+QvRJUO6ynXIGFWXRfSlxET6Vtexgs8k1CBAshTk8E7 VLfA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:user-agent:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :dkim-signature; bh=Np+AFztqmBimfS/qEon9R+pTQKfM2XYQOn7x3TI3bz4=; b=bBKPK68BDLT8EiHHH4bJdzHWysysfA96tPw/nDtG83/qCrbxOgicGM8YxfkSUaRA4z gU6R2Z8Ex6b2L9UciLEUNJWMoOOlM0u/zB6Cw8V/EQBQzxPR/sW/R2jQmC378tqYu7Ts Azqbfao/G/gyHwyvuvc5CkCXzy65GeIHi5uPxuUzSBsudDzFZ6m2xq4Ld5ZwWVfJrjEW qruXAjWAcGVq0t47HFWvC4T9Ln94NgMFgyMvNy0YCOtQYJopYbkdUz/miZiXq5Rn54vS 8h8SF+XR0Kr8CFt7+KUHxFrhO3f06srot67IlBgRffw4cJ5pit2uC2o4yC0A4Iipl9HM EmeA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=G93LfQTh; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id l16si11028793ejd.683.2021.02.01.10.45.26; Mon, 01 Feb 2021 10:45:55 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=G93LfQTh; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232935AbhBASmi (ORCPT + 99 others); Mon, 1 Feb 2021 13:42:38 -0500 Received: from mail.kernel.org ([198.145.29.99]:34572 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232173AbhBASmc (ORCPT ); Mon, 1 Feb 2021 13:42:32 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 1757A64DDF; Mon, 1 Feb 2021 18:41:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1612204905; bh=8fU4c65Z1m9hAEXTu2nO/7NiTyQYV8Nb3hUN/A9d9Hg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=G93LfQThWoA3J0Ubyc13/PnHLPhueMAMe0lXcjaaX7CEGBd9sg5xj3kG3sWGzMa8j H6cMnZWXdJ9NLf8e3WUAh8gCfsbN5msU+B7CREiIJUdPqqh+jtCihLxeymamPOTSn2 +RYAbHscpO9ESQIyQ3eTkortaed8fnGphCAQfsW3r5nZPzvPQ5Z8+kq0JNp8vGJT8B PfSGbvVr/pRUY6ZcODZVuLsZBYIOlxXO69S8WPaHO373WmeabGpXV59/R/Rm/4wQ/s NCpod4Jnz01Witb4Vj8OlMJaNBtDj0WMnLXZRAIl/i15QLW+Lw3QuUPk/eWrfcdmL1 0cx62+JEpnm8Q== Date: Mon, 1 Feb 2021 18:41:39 +0000 From: Will Deacon To: Quentin Perret Cc: Catalin Marinas , Marc Zyngier , James Morse , Julien Thierry , Suzuki K Poulose , Rob Herring , Frank Rowand , devicetree@vger.kernel.org, android-kvm@google.com, linux-kernel@vger.kernel.org, kernel-team@android.com, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, Fuad Tabba , Mark Rutland , David Brazdil Subject: Re: [RFC PATCH v2 08/26] KVM: arm64: Make kvm_call_hyp() a function call at Hyp Message-ID: <20210201184139.GG15632@willie-the-truck> References: <20210108121524.656872-1-qperret@google.com> <20210108121524.656872-9-qperret@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210108121524.656872-9-qperret@google.com> User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jan 08, 2021 at 12:15:06PM +0000, Quentin Perret wrote: > kvm_call_hyp() has some logic to issue a function call or a hypercall > depending the EL at which the kernel is running. However, all the code > compiled under __KVM_NVHE_HYPERVISOR__ is guaranteed to run only at EL2, > and in this case a simple function call is needed. > > Add ifdefery to kvm_host.h to symplify kvm_call_hyp() in .hyp.text. > > Signed-off-by: Quentin Perret > --- > arch/arm64/include/asm/kvm_host.h | 6 ++++++ > 1 file changed, 6 insertions(+) Acked-by: Will Deacon Will