From nobody Thu Apr 9 06:24:24 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BD23CC4332F for ; Fri, 18 Nov 2022 06:00:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241020AbiKRGAT (ORCPT ); Fri, 18 Nov 2022 01:00:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33208 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235025AbiKRGAQ (ORCPT ); Fri, 18 Nov 2022 01:00:16 -0500 Received: from mail-pl1-x62e.google.com (mail-pl1-x62e.google.com [IPv6:2607:f8b0:4864:20::62e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CEFAE786DA for ; Thu, 17 Nov 2022 22:00:10 -0800 (PST) Received: by mail-pl1-x62e.google.com with SMTP id d20so3675360plr.10 for ; Thu, 17 Nov 2022 22:00:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=csie-ntu-edu-tw.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=q4Wk+KzFpp8McF2mDNBn6lyFAwa5ExYeoo2v/dCLoXE=; b=F6o5IA2rQckRHAgrVgFVJsNGoM3dOXI/T05L8otWp8O0NUh4J5fPSDaGJp7VPnkp/2 OTEXlejbStDWGw5Vw3VHFjA91SPh974r6KgoVy5BP7pIkGnMhcYn/Hcm8XXyLChcklDX Yuslm1FkyrYoG/q1m/IES0FpKMEh2aQoap3ZUskMIQ0MUZXvCtPBdKMFLa3t1upZ4i5G iaGoJit0pUb/g9OX5fjyVx+k3yQFbgEXmew9glBZeLVJBh4ryqUyhOS+/PtHW62Ejzl8 kieaLjS/C1/R7a/NVlpNLlhQXM3PfNaBo/kVr1GLa57CgplAeDpIUKxaT1M6cmRxwStU 4pBg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=q4Wk+KzFpp8McF2mDNBn6lyFAwa5ExYeoo2v/dCLoXE=; b=q0htru2Gqt68lSmc80TP8U5w/lFJclhX1tjATGd+8BZXu5nEBfj6wSh6L3ZsG0gD81 7CrlVr41fPg5uifgiEPkgj5KOFIDCerzCONSaXnpKIr0INa+IsdC4RVlPihFrRcbZNEm HlneS/kmsPvDKjwfVWeto3tzhOg+6jfTR35PGhpTR0zrqKHuvT2HJTyDMLgPwEhkDKS7 aJwnBV5KUfiZgzPl8o4SdjT3vvearm0tyeSl/r5xPSnTJHTgwOnEExYv+Zvwnu9GaGUJ t/+J6ImYiKct+O9j4I8tDj7qPQ1B6KTTlEv8gAOCRfP1LBCncamBU1740Isrr7AyTl3u HKOA== X-Gm-Message-State: ANoB5pnWHIYF5yHlGrQRUySeCRMOBti2h+37vQgGV1NHe0G/urZ4fgD6 DRhE26WmaCdehpM3jgnzN+/bgKtS+fgRWFxJ5Zg+tQXJtON3cbC+ekJwYWM/aUh3HN0wWDKziG5 c1wqNrwEGUP68YQsSTcdYsqAsmkDKDLtAWdaFsMz5BemJesp6OmHioK3EEASbxJ03SOB1/6ilHn tvT0CVs4JMA6gYhOSOui46wQoKQfw= X-Google-Smtp-Source: AA0mqf7JGkj+dhtm+n3CMsmmaicX6T43PbeSs87rwh9x5tEbgbshfwL2GcJwh/+hs46IiO5iW+Axqw== X-Received: by 2002:a17:90a:6904:b0:208:4bfa:51e1 with SMTP id r4-20020a17090a690400b002084bfa51e1mr11873419pjj.228.1668751210234; Thu, 17 Nov 2022 22:00:10 -0800 (PST) Received: from localhost.localdomain (2001-b011-3803-1a96-3716-7fae-2678-9ea1.dynamic-ip6.hinet.net. [2001:b011:3803:1a96:3716:7fae:2678:9ea1]) by smtp.gmail.com with ESMTPSA id h9-20020aa796c9000000b0056d98e359a5sm2169627pfq.165.2022.11.17.22.00.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 17 Nov 2022 22:00:09 -0800 (PST) From: Wei-Lin Chang To: maz@kernel.org Cc: james.morse@arm.com, alexandru.elisei@arm.com, suzuki.poulose@arm.com, oliver.upton@linux.dev, catalin.marinas@arm.com, will@kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org, Wei-Lin Chang Subject: [PATCH v2] KVM: arm64: Update comment of create_hyp_mappings Date: Fri, 18 Nov 2022 13:59:37 +0800 Message-Id: <20221118055937.14605-1-r09922117@csie.ntu.edu.tw> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Gm-Spam: 0 X-Gm-Phishy: 0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" HYP_PAGE_OFFSET is removed since 4.8, and the method for generating Hyp VAs has evolved. Update the functional description of create_hyp_mappings accordingly. Signed-off-by: Wei-Lin Chang --- Changes in v2: - Take Marc's advice arch/arm64/kvm/mmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c index 8f26c6569..6dda4f4bd 100644 --- a/arch/arm64/kvm/mmu.c +++ b/arch/arm64/kvm/mmu.c @@ -479,7 +479,7 @@ void kvm_unshare_hyp(void *from, void *to) * @prot: The protection to be applied to this range * * The same virtual address as the kernel virtual address is also used - * in Hyp-mode mapping (modulo HYP_PAGE_OFFSET) to the same underlying + * in Hyp-mode mapping (modulo a random offset) to the same underlying * physical pages. */ int create_hyp_mappings(void *from, void *to, enum kvm_pgtable_prot prot) --=20 2.34.1