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=-23.5 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, UNWANTED_LANGUAGE_BODY,USER_AGENT_GIT,USER_IN_DEF_DKIM_WL 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 05159C432C3 for ; Wed, 10 Mar 2021 17:59:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D0B3C6500C for ; Wed, 10 Mar 2021 17:59:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233929AbhCJR7F (ORCPT ); Wed, 10 Mar 2021 12:59:05 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48838 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233703AbhCJR6h (ORCPT ); Wed, 10 Mar 2021 12:58:37 -0500 Received: from mail-wr1-x44a.google.com (mail-wr1-x44a.google.com [IPv6:2a00:1450:4864:20::44a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AFC3AC061760 for ; Wed, 10 Mar 2021 09:58:36 -0800 (PST) Received: by mail-wr1-x44a.google.com with SMTP id e29so8314324wra.12 for ; Wed, 10 Mar 2021 09:58:36 -0800 (PST) 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=bwje5/mTjAPXp3ucjvZl1d3xYnpG4DOJqI6qSewZTKg=; b=kTiEMz/ZmApZPyPPBuOAVVI1XfEWrDD/FlF9YL2vlvyUk0ZxpWZq3Vi1P8ENfyf0yW D17Yf4vX3j1XGW/K8xI2SLf89zP337IPhHEL/jdhn9M1+VDba9SqNKFobPjoh2NGwWSB RDixKT/u9Jildo/Y/HLiqJZSyI/IWe2xUBO5AJ5JlBNdkrd0Zu0Vf2n7fqVD+LzeY+4x KqhovBFzGi07230Rr2y0RdacrGcazfH8JgFDFtTA2H0NTq1XSLz2+EaWylvc0fhkLnu6 GBglPu+rtSYfnztBzxRMswohSH+NtYVchzFRw//FT8yJ1Yr6M0pZG+/GE+SR8cI9vlPP 4yxw== 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=bwje5/mTjAPXp3ucjvZl1d3xYnpG4DOJqI6qSewZTKg=; b=Xveq37oSmSXvd/ZFA0chCzs2bfYzIljiFxMgG1+xF9JK9MD0fmhwGY+krzM71tE+NN DJGp3mdclOgNiVrSeAJHrADMlM4MOm9+rffPTohasNKPDI3st3DfTatTJGsDF7VHg7Ud dS0+8BmUPb1PzCL8e2xh5ArMqY8EQFKdZ/dC7uIgc6RZD0a8sTOFI4Lb3p3ZsHy9tMDo 4w60oCV7P8jRnpkPGc6ALMTfPRmiOlJWVC6pmw4dE1a0lCM/TzEdH/QYfaVm/it+166T ydTIXtWgSYCC6YNhQloxOGphieQpBHLFQJGW6wICyDEuihYNnWeuEw8RWVMb6g+qBqkt lHLA== X-Gm-Message-State: AOAM533lI3SJ0tl4iWifwnw7whnptHUsHK14njPgKuNW/2q1Mn9IUnLB tf39ghBw+jZTRUpMGJC5tXymzMSVdRXI X-Google-Smtp-Source: ABdhPJyfj1AGgYu6hP2WiGG5K1co03Lv+9xUcg9I+svgyqAymq4hmK7PO5V/NqSdZBVwz+UtX25b6J8FGq9/ X-Received: from r2d2-qp.c.googlers.com ([fda3:e722:ac3:10:28:9cb1:c0a8:1652]) (user=qperret job=sendgmr) by 2002:a1c:4e0f:: with SMTP id g15mr4599326wmh.144.1615399115454; Wed, 10 Mar 2021 09:58:35 -0800 (PST) Date: Wed, 10 Mar 2021 17:57:36 +0000 In-Reply-To: <20210310175751.3320106-1-qperret@google.com> Message-Id: <20210310175751.3320106-20-qperret@google.com> Mime-Version: 1.0 References: <20210310175751.3320106-1-qperret@google.com> X-Mailer: git-send-email 2.30.1.766.gb4fecdf3b7-goog Subject: [PATCH v4 19/34] KVM: arm64: Use kvm_arch in kvm_s2_mmu 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, linux-kernel@vger.kernel.org, kernel-team@android.com, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org, tabba@google.com, mark.rutland@arm.com, dbrazdil@google.com, mate.toth-pal@arm.com, seanjc@google.com, qperret@google.com, robh+dt@kernel.org, ardb@kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In order to make use of the stage 2 pgtable code for the host stage 2, change kvm_s2_mmu to use a kvm_arch pointer in lieu of the kvm pointer, as the host will have the former but not the latter. Acked-by: Will Deacon Signed-off-by: Quentin Perret --- arch/arm64/include/asm/kvm_host.h | 2 +- arch/arm64/include/asm/kvm_mmu.h | 6 +++++- arch/arm64/kvm/mmu.c | 8 ++++---- 3 files changed, 10 insertions(+), 6 deletions(-) diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index b9d45a1f8538..90565782ce3e 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -94,7 +94,7 @@ struct kvm_s2_mmu { /* The last vcpu id that ran on each physical CPU */ int __percpu *last_vcpu_ran; - struct kvm *kvm; + struct kvm_arch *arch; }; struct kvm_arch_memory_slot { diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h index ce02a4052dcf..6f743e20cb06 100644 --- a/arch/arm64/include/asm/kvm_mmu.h +++ b/arch/arm64/include/asm/kvm_mmu.h @@ -272,7 +272,7 @@ static __always_inline u64 kvm_get_vttbr(struct kvm_s2_mmu *mmu) */ static __always_inline void __load_guest_stage2(struct kvm_s2_mmu *mmu) { - write_sysreg(kern_hyp_va(mmu->kvm)->arch.vtcr, vtcr_el2); + write_sysreg(kern_hyp_va(mmu->arch)->vtcr, vtcr_el2); write_sysreg(kvm_get_vttbr(mmu), vttbr_el2); /* @@ -283,5 +283,9 @@ static __always_inline void __load_guest_stage2(struct kvm_s2_mmu *mmu) asm(ALTERNATIVE("nop", "isb", ARM64_WORKAROUND_SPECULATIVE_AT)); } +static inline struct kvm *kvm_s2_mmu_to_kvm(struct kvm_s2_mmu *mmu) +{ + return container_of(mmu->arch, struct kvm, arch); +} #endif /* __ASSEMBLY__ */ #endif /* __ARM64_KVM_MMU_H__ */ diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c index 41f9c03cbcc3..3257cadfab24 100644 --- a/arch/arm64/kvm/mmu.c +++ b/arch/arm64/kvm/mmu.c @@ -165,7 +165,7 @@ static void *kvm_host_va(phys_addr_t phys) static void __unmap_stage2_range(struct kvm_s2_mmu *mmu, phys_addr_t start, u64 size, bool may_block) { - struct kvm *kvm = mmu->kvm; + struct kvm *kvm = kvm_s2_mmu_to_kvm(mmu); phys_addr_t end = start + size; assert_spin_locked(&kvm->mmu_lock); @@ -470,7 +470,7 @@ int kvm_init_stage2_mmu(struct kvm *kvm, struct kvm_s2_mmu *mmu) for_each_possible_cpu(cpu) *per_cpu_ptr(mmu->last_vcpu_ran, cpu) = -1; - mmu->kvm = kvm; + mmu->arch = &kvm->arch; mmu->pgt = pgt; mmu->pgd_phys = __pa(pgt->pgd); mmu->vmid.vmid_gen = 0; @@ -552,7 +552,7 @@ void stage2_unmap_vm(struct kvm *kvm) void kvm_free_stage2_pgd(struct kvm_s2_mmu *mmu) { - struct kvm *kvm = mmu->kvm; + struct kvm *kvm = kvm_s2_mmu_to_kvm(mmu); struct kvm_pgtable *pgt = NULL; spin_lock(&kvm->mmu_lock); @@ -621,7 +621,7 @@ int kvm_phys_addr_ioremap(struct kvm *kvm, phys_addr_t guest_ipa, */ static void stage2_wp_range(struct kvm_s2_mmu *mmu, phys_addr_t addr, phys_addr_t end) { - struct kvm *kvm = mmu->kvm; + struct kvm *kvm = kvm_s2_mmu_to_kvm(mmu); stage2_apply_range_resched(kvm, addr, end, kvm_pgtable_stage2_wrprotect); } -- 2.30.1.766.gb4fecdf3b7-goog