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=-16.6 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham 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 F1CEDC433E0 for ; Fri, 19 Mar 2021 10:01:59 +0000 (UTC) Received: from mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by mail.kernel.org (Postfix) with ESMTP id 6714964F73 for ; Fri, 19 Mar 2021 10:01:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6714964F73 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvmarm-bounces@lists.cs.columbia.edu Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 040484B600; Fri, 19 Mar 2021 06:01:59 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@google.com Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id pxPDGL4inYOI; Fri, 19 Mar 2021 06:01:57 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id EC1B14B669; Fri, 19 Mar 2021 06:01:57 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 3C0E34B60C for ; Fri, 19 Mar 2021 06:01:56 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wAaoizK0pnjI for ; Fri, 19 Mar 2021 06:01:55 -0400 (EDT) Received: from mail-wr1-f73.google.com (mail-wr1-f73.google.com [209.85.221.73]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id 1CDC84B669 for ; Fri, 19 Mar 2021 06:01:55 -0400 (EDT) Received: by mail-wr1-f73.google.com with SMTP id p12so18987791wrn.18 for ; Fri, 19 Mar 2021 03:01:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=QCiwKULDYqVgexkGV6Dq4fSAHDULaRDXCu3D8lkxqPg=; b=YsykdfHMlrALCZI0j/lFF8X23+hN+Zu3fDiK1ID85DnPouGtnQLEmewg79JgR6rjVF kPU/iYhzhmpW8dg5GxiWf5NEbaAPjywICzQZOnlcn+pOldrRNy48XFX5MPV3IPrAXBSn 9qtwV0D9x9ZsilM3McX3RcpvJdUARTU8n08E5gu7j+N1u52VviYAWxhBVM1+gtr7z/Ow NyFvxEPGlX3fblHkO0JxtGDo+SUSPEVzgjWiR6bmEERmFVqlWBhtgJG18fTfo66C8BOR 9kK9G7CoQRoNzALus8imZsx/9855keRRGBrUso/WZ+1cKQz7/UsVIHBlcuFkJV1Rdlwe RDgQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=QCiwKULDYqVgexkGV6Dq4fSAHDULaRDXCu3D8lkxqPg=; b=JXQqUcVCpUqS8F08BTKROoUoJ539tOK2eQsWs40P4Hv33bItzs6mGhd4cJYkAqFBGy Sdo3JM09vGSAufFR225ma/ieFyRSTUTqmao2acHp6Vb9dIN9adST3SDXUg95N43U63ZI PkvicFqlgqSf+kGZReCX45i0OgqfVGMehi6Bga8K09SeOgYQQF2wwoVltdfWtaFzX7iq xJZ8lVSdmQ34QOZ6YU/6DdLUdTbve8vfbjrYrWg5HLfCtbDUi2A6mDU4gH9y7ZnhXG6N JpfyyN8/RXK2R0LcQYzhTxQhLDVaIhjjsP+wE+gykkL/xFjunpxeGWLZLlZMQ+W72abk A/gg== X-Gm-Message-State: AOAM531VpPP9koME6e+3s17YjPbI6I47HfXwwgsT0IhSgKi91/G81sme U6RgzH6BKS87ftoLEBScNlk74Etof7Ck X-Google-Smtp-Source: ABdhPJynBItS8S3NsqD1ssoT1ZqH19/azGgDhWvgPMOcebHSNlUyhK+MNUoRziO27fIkmI2sqEz5Xbr29CO/ X-Received: from r2d2-qp.c.googlers.com ([fda3:e722:ac3:10:28:9cb1:c0a8:1652]) (user=qperret job=sendgmr) by 2002:a05:600c:4f55:: with SMTP id m21mr2914524wmq.11.1616148114138; Fri, 19 Mar 2021 03:01:54 -0700 (PDT) Date: Fri, 19 Mar 2021 10:01:10 +0000 In-Reply-To: <20210319100146.1149909-1-qperret@google.com> Message-Id: <20210319100146.1149909-3-qperret@google.com> Mime-Version: 1.0 References: <20210319100146.1149909-1-qperret@google.com> X-Mailer: git-send-email 2.31.0.rc2.261.g7f71774620-goog Subject: [PATCH v6 02/38] KVM: arm64: Link position-independent string routines into .hyp.text From: Quentin Perret To: catalin.marinas@arm.com, will@kernel.org, maz@kernel.org, james.morse@arm.com, julien.thierry.kdev@gmail.com, suzuki.poulose@arm.com Cc: android-kvm@google.com, seanjc@google.com, mate.toth-pal@arm.com, linux-kernel@vger.kernel.org, robh+dt@kernel.org, tabba@google.com, kernel-team@android.com, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu From: Will Deacon Pull clear_page(), copy_page(), memcpy() and memset() into the nVHE hyp code and ensure that we always execute the '__pi_' entry point on the offchance that it changes in future. [ qperret: Commit title nits and added linker script alias ] Signed-off-by: Will Deacon Signed-off-by: Quentin Perret --- arch/arm64/include/asm/hyp_image.h | 3 +++ arch/arm64/kernel/image-vars.h | 11 +++++++++++ arch/arm64/kvm/hyp/nvhe/Makefile | 4 ++++ 3 files changed, 18 insertions(+) diff --git a/arch/arm64/include/asm/hyp_image.h b/arch/arm64/include/asm/hyp_image.h index 737ded6b6d0d..78cd77990c9c 100644 --- a/arch/arm64/include/asm/hyp_image.h +++ b/arch/arm64/include/asm/hyp_image.h @@ -56,6 +56,9 @@ */ #define KVM_NVHE_ALIAS(sym) kvm_nvhe_sym(sym) = sym; +/* Defines a linker script alias for KVM nVHE hyp symbols */ +#define KVM_NVHE_ALIAS_HYP(first, sec) kvm_nvhe_sym(first) = kvm_nvhe_sym(sec); + #endif /* LINKER_SCRIPT */ #endif /* __ARM64_HYP_IMAGE_H__ */ diff --git a/arch/arm64/kernel/image-vars.h b/arch/arm64/kernel/image-vars.h index 5aa9ed1e9ec6..4eb7a15c8b60 100644 --- a/arch/arm64/kernel/image-vars.h +++ b/arch/arm64/kernel/image-vars.h @@ -104,6 +104,17 @@ KVM_NVHE_ALIAS(kvm_arm_hyp_percpu_base); /* PMU available static key */ KVM_NVHE_ALIAS(kvm_arm_pmu_available); +/* Position-independent library routines */ +KVM_NVHE_ALIAS_HYP(clear_page, __pi_clear_page); +KVM_NVHE_ALIAS_HYP(copy_page, __pi_copy_page); +KVM_NVHE_ALIAS_HYP(memcpy, __pi_memcpy); +KVM_NVHE_ALIAS_HYP(memset, __pi_memset); + +#ifdef CONFIG_KASAN +KVM_NVHE_ALIAS_HYP(__memcpy, __pi_memcpy); +KVM_NVHE_ALIAS_HYP(__memset, __pi_memset); +#endif + #endif /* CONFIG_KVM */ #endif /* __ARM64_KERNEL_IMAGE_VARS_H */ diff --git a/arch/arm64/kvm/hyp/nvhe/Makefile b/arch/arm64/kvm/hyp/nvhe/Makefile index a6707df4f6c0..bc98f8e3d1da 100644 --- a/arch/arm64/kvm/hyp/nvhe/Makefile +++ b/arch/arm64/kvm/hyp/nvhe/Makefile @@ -9,10 +9,14 @@ ccflags-y := -D__KVM_NVHE_HYPERVISOR__ -D__DISABLE_EXPORTS hostprogs := gen-hyprel HOST_EXTRACFLAGS += -I$(objtree)/include +lib-objs := clear_page.o copy_page.o memcpy.o memset.o +lib-objs := $(addprefix ../../../lib/, $(lib-objs)) + obj-y := timer-sr.o sysreg-sr.o debug-sr.o switch.o tlb.o hyp-init.o host.o \ hyp-main.o hyp-smp.o psci-relay.o obj-y += ../vgic-v3-sr.o ../aarch32.o ../vgic-v2-cpuif-proxy.o ../entry.o \ ../fpsimd.o ../hyp-entry.o ../exception.o +obj-y += $(lib-objs) ## ## Build rules for compiling nVHE hyp code -- 2.31.0.rc2.261.g7f71774620-goog _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm