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=-1.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED 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 B609EC43387 for ; Fri, 21 Dec 2018 09:31:47 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 7D22C218F0 for ; Fri, 21 Dec 2018 09:31:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="EV6dD9pD"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="k27rEf2d" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7D22C218F0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-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=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date: Message-ID:From:References:To:Subject:Reply-To:Content-ID:Content-Description :Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=dk5+QGziTJWFawzjAOwyUs521m4oWxF2KONz7kOO4c4=; b=EV6dD9pD6iHiIh zgotxxTbkAPHuoO/nk2+MEIu/PDGovoEdK4YwZUC9228z+pulp/eE20/jP6HNezKTQOQRp+uK5kha J8WUgdy/iZ18HsYgmtOqZFJzxD9FdO0y2h0SAUqCMuqNUHhe62vxp0KS/LPAPZmKt1XH5TglfoV2m 1buB+pnWhEzf34kkPWi8hXGpNybswocBGJnWILrZ+UW7iHV+OZXr+umLUIEmDVwJ9IEV6lYjz1QeZ hJK50UvWN/a9wRW4ZH+sD/7yPwfCMOz+BLSaETd1S7yoJxXSROwXu9sKuBn+EKGC1Y6OOVMx253qf pA1wM10aFkJG8TiJqEZg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gaH9l-0003qj-NC; Fri, 21 Dec 2018 09:31:45 +0000 Received: from mail-wm1-x343.google.com ([2a00:1450:4864:20::343]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gaH9i-0003pO-3W for linux-arm-kernel@lists.infradead.org; Fri, 21 Dec 2018 09:31:43 +0000 Received: by mail-wm1-x343.google.com with SMTP id b11so4637279wmj.1 for ; Fri, 21 Dec 2018 01:31:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:subject:to:cc:references:from:openpgp:autocrypt:message-id :date:user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=NqJ1ZygM7d32i2cesM1IybGBm3lDm82mQWpm0w8o7Dw=; b=k27rEf2dEMdOw8CifYQdHb6l0R/Ct5jDpDLUktt87xsdWlSUULeZ6u1oTxTj1BCckG eswffTZBgDauF8o5o/x08jdVp7zmqR5iELP+onraOtYNyq/q+ARAhQRlJjIPIbbqaIBV vVt0/eRb3JKpdw3Udd72BoBMD+aujZ1yYHBraa2e34m8D0EuftVSFUYDDRV65mGGx8Zn VDNmna9w8H1nqNZ/joLNIVe64HMltHZ5p8Hdn3gl79/rvNq49Tkh44LSClsf0rBjxtRc 5p4pZnXPpgDkBAfnPMdfl5SnhQLFxRDkDhks52UHlon0cZa0uPlclXpcMFbxYtFqihI9 ZNnw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:subject:to:cc:references:from:openpgp :autocrypt:message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=NqJ1ZygM7d32i2cesM1IybGBm3lDm82mQWpm0w8o7Dw=; b=ELfJowITUpAhtn9dCT7YLr7oG4HQGVQg7UWFOOy0DOBpcikBxW6CxzXztQmcujO/oc d6jIKTUS7Z0vtJpylHvhXOx+mtLTHmnscFtgq40wowd3hYDa5wi8qh046cslbyicSQVW 1bWii7rngujYxgwo1idfAiJHDF2s180rMWoRBvnk+wjGIzpeH22/D1XzDoTB0BakSTmx RKCS0SteeI095XA0Vd5NIQBGJKpvSixBsrhI0Hjzmm50cSntEyG8mX2vmB4R3MZQqV/4 YsFEGMuViF57xzsJn1+herEWgPdVCV3fcGOwzG0Zq025DiGkCe6f6UQv9iXKzNlpSgaP IK4A== X-Gm-Message-State: AA+aEWbMtvcYH3a+AqZWvVy5a8xwBRe0ElXMCPUUjBfFXQXlrYKtitkP uouDHupPrCbsx6MRMcWZ/svgxrAE X-Google-Smtp-Source: ALg8bN6NfrY196JuieUaeE6s+5jl/wtM29CTI3sruqQ1pYmXCc0PTNoEy9oJIgWl/0cgwZfjFuqjZg== X-Received: by 2002:a1c:8acf:: with SMTP id m198mr2138988wmd.143.1545384690047; Fri, 21 Dec 2018 01:31:30 -0800 (PST) Received: from [192.168.10.150] ([93.56.166.5]) by smtp.googlemail.com with ESMTPSA id j8sm8329569wrt.40.2018.12.21.01.31.28 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 21 Dec 2018 01:31:29 -0800 (PST) Subject: Re: [Resend PATCH V5 0/10] x86/KVM/Hyper-v: Add HV ept tlb range flush hypercall support in KVM To: lantianyu1986@gmail.com References: <20181206132113.2691-1-Tianyu.Lan@microsoft.com> From: Paolo Bonzini Openpgp: preference=signencrypt Autocrypt: addr=pbonzini@redhat.com; keydata= mQHhBFRCcBIBDqDGsz4K0zZun3jh+U6Z9wNGLKQ0kSFyjN38gMqU1SfP+TUNQepFHb/Gc0E2 CxXPkIBTvYY+ZPkoTh5xF9oS1jqI8iRLzouzF8yXs3QjQIZ2SfuCxSVwlV65jotcjD2FTN04 hVopm9llFijNZpVIOGUTqzM4U55sdsCcZUluWM6x4HSOdw5F5Utxfp1wOjD/v92Lrax0hjiX DResHSt48q+8FrZzY+AUbkUS+Jm34qjswdrgsC5uxeVcLkBgWLmov2kMaMROT0YmFY6A3m1S P/kXmHDXxhe23gKb3dgwxUTpENDBGcfEzrzilWueOeUWiOcWuFOed/C3SyijBx3Av/lbCsHU Vx6pMycNTdzU1BuAroB+Y3mNEuW56Yd44jlInzG2UOwt9XjjdKkJZ1g0P9dwptwLEgTEd3Fo UdhAQyRXGYO8oROiuh+RZ1lXp6AQ4ZjoyH8WLfTLf5g1EKCTc4C1sy1vQSdzIRu3rBIjAvnC tGZADei1IExLqB3uzXKzZ1BZ+Z8hnt2og9hb7H0y8diYfEk2w3R7wEr+Ehk5NQsT2MPI2QBd wEv1/Aj1DgUHZAHzG1QN9S8wNWQ6K9DqHZTBnI1hUlkp22zCSHK/6FwUCuYp1zcAEQEAAbQj UGFvbG8gQm9uemluaSA8cGJvbnppbmlAcmVkaGF0LmNvbT6JAg0EEwECACMFAlRCcBICGwMH CwkIBwMCAQYVCAIJCgsEFgIDAQIeAQIXgAAKCRB+FRAMzTZpsbceDp9IIN6BIA0Ol7MoB15E 11kRz/ewzryFY54tQlMnd4xxfH8MTQ/mm9I482YoSwPMdcWFAKnUX6Yo30tbLiNB8hzaHeRj jx12K+ptqYbg+cevgOtbLAlL9kNgLLcsGqC2829jBCUTVeMSZDrzS97ole/YEez2qFpPnTV0 VrRWClWVfYh+JfzpXmgyhbkuwUxNFk421s4Ajp3d8nPPFUGgBG5HOxzkAm7xb1cjAuJ+oi/K CHfkuN+fLZl/u3E/fw7vvOESApLU5o0icVXeakfSz0LsygEnekDbxPnE5af/9FEkXJD5EoYG SEahaEtgNrR4qsyxyAGYgZlS70vkSSYJ+iT2rrwEiDlo31MzRo6Ba2FfHBSJ7lcYdPT7bbk9 AO3hlNMhNdUhoQv7M5HsnqZ6unvSHOKmReNaS9egAGdRN0/GPDWr9wroyJ65ZNQsHl9nXBqE AukZNr5oJO5vxrYiAuuTSd6UI/xFkjtkzltG3mw5ao2bBpk/V/YuePrJsnPFHG7NhizrxttB nTuOSCMo45pfHQ+XYd5K1+Cv/NzZFNWscm5htJ0HznY+oOsZvHTyGz3v91pn51dkRYN0otqr bQ4tlFFuVjArBZcapSIe6NV8C4cEiSS5AQ0EVEJxcwEIAK+nUrsUz3aP2aBjIrX3a1+C+39R nctpNIPcJjFJ/8WafRiwcEuLjbvJ/4kyM6K7pWUIQftl1P8Woxwb5nqL7zEFHh5I+hKS3haO 5pgco//V0tWBGMKinjqntpd4U4Dl299dMBZ4rRbPvmI8rr63sCENxTnHhTECyHdGFpqSzWzy 97rH68uqMpxbUeggVwYkYihZNd8xt1+lf7GWYNEO/QV8ar/qbRPG6PEfiPPHQd/sldGYavmd //o6TQLSJsvJyJDt7KxulnNT8Q2X/OdEuVQsRT5glLaSAeVAABcLAEnNgmCIGkX7TnQF8a6w gHGrZIR9ZCoKvDxAr7RP6mPeS9sAEQEAAYkDEgQYAQIACQUCVEJxcwIbAgEpCRB+FRAMzTZp scBdIAQZAQIABgUCVEJxcwAKCRC/+9JfeMeug/SlCACl7QjRnwHo/VzENWD9G2VpUOd9eRnS DZGQmPo6Mp3Wy8vL7snGFBfRseT9BevXBSkxvtOnUUV2YbyLmolAODqUGzUI8ViF339poOYN i6Ffek0E19IMQ5+CilqJJ2d5ZvRfaq70LA/Ly9jmIwwX4auvXrWl99/2wCkqnWZI+PAepkcX JRD4KY2fsvRi64/aoQmcxTiyyR7q3/52Sqd4EdMfj0niYJV0Xb9nt8G57Dp9v3Ox5JeWZKXS krFqy1qyEIypIrqcMbtXM7LSmiQ8aJRM4ZHYbvgjChJKR4PsKNQZQlMWGUJO4nVFSkrixc9R Z49uIqQK3b3ENB1QkcdMg9cxsB0Onih8zR+Wp1uDZXnz1ekto+EivLQLqvTjCCwLxxJafwKI bqhQ+hGR9jF34EFur5eWt9jJGloEPVv0GgQflQaE+rRGe+3f5ZDgRe5Y/EJVNhBhKcafcbP8 MzmLRh3UDnYDwaeguYmxuSlMdjFL96YfhRBXs8tUw6SO9jtCgBvoOIBDCxxAJjShY4KIvEpK b2hSNr8KxzelKKlSXMtB1bbHbQxiQcerAipYiChUHq1raFc3V0eOyCXK205rLtknJHhM5pfG 6taABGAMvJgm/MrVILIxvBuERj1FRgcgoXtiBmLEJSb7akcrRlqe3MoPTntSTNvNzAJmfWhd SvP0G1WDLolqvX0OtKMppI91AWVu72f1kolJg43wbaKpRJg1GMkKEI3H+jrrlTBrNl/8e20m TElPRDKzPiowmXeZqFSS1A6Azv0TJoo9as+lWF+P4zCXt40+Zhh5hdHO38EV7vFAVG3iuay6 7ToF8Uy7tgc3mdH98WQSmHcn/H5PFYk3xTP3KHB7b0FZPdFPQXBZb9+tJeZBi9gMqcjMch+Y R8dmTcQRQX14bm5nXlBF7VpSOPZMR392LY7wzAvRdhz7aeIUkdO7VelaspFk2nT7wOj1Y6uL nRxQlLkBDQRUQnHuAQgAx4dxXO6/Zun0eVYOnr5GRl76+2UrAAemVv9Yfn2PbDIbxXqLff7o yVJIkw4WdhQIIvvtu5zH24iYjmdfbg8iWpP7NqxUQRUZJEWbx2CRwkMHtOmzQiQ2tSLjKh/c HeyFH68xjeLcinR7jXMrHQK+UCEw6jqi1oeZzGvfmxarUmS0uRuffAb589AJW50kkQK9VD/9 QC2FJISSUDnRC0PawGSZDXhmvITJMdD4TjYrePYhSY4uuIV02v028TVAaYbIhxvDY0hUQE4r 8ZbGRLn52bEzaIPgl1p/adKfeOUeMReg/CkyzQpmyB1TSk8lDMxQzCYHXAzwnGi8WU9iuE1P 0wARAQABiQHzBBgBAgAJBQJUQnHuAhsMAAoJEH4VEAzNNmmxp1EOoJy0uZggJm7gZKeJ7iUp eX4eqUtqelUw6gU2daz2hE/jsxsTbC/w5piHmk1H1VWDKEM4bQBTuiJ0bfo55SWsUNN+c9hh IX+Y8LEe22izK3w7mRpvGcg+/ZRG4DEMHLP6JVsv5GMpoYwYOmHnplOzCXHvmdlW0i6SrMsB Dl9rw4AtIa6bRwWLim1lQ6EM3PWifPrWSUPrPcw4OLSwFk0CPqC4HYv/7ZnASVkR5EERFF3+ 6iaaVi5OgBd81F1TCvCX2BEyIDRZLJNvX3TOd5FEN+lIrl26xecz876SvcOb5SL5SKg9/rCB ufdPSjojkGFWGziHiFaYhbuI2E+NfWLJtd+ZvWAAV+O0d8vFFSvriy9enJ8kxJwhC0ECbSKF Y+W1eTIhMD3aeAKY90drozWEyHhENf4l/V+Ja5vOnW+gCDQkGt2Y1lJAPPSIqZKvHzGShdh8 DduC0U3xYkfbGAUvbxeepjgzp0uEnBXfPTy09JGpgWbg0w91GyfT/ujKaGd4vxG2Ei+MMNDm S1SMx7wu0evvQ5kT9NPzyq8R2GIhVSiAd2jioGuTjX6AZCFv3ToO53DliFMkVTecLptsXaes uUHgL9dKIfvpm+rNXRn9wAwGjk0X/A== Message-ID: <36f1e16f-2390-fa61-e5e0-07320abea9ba@redhat.com> Date: Fri, 21 Dec 2018 10:31:28 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.1 MIME-Version: 1.0 In-Reply-To: <20181206132113.2691-1-Tianyu.Lan@microsoft.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181221_013142_145425_0C7EB06E X-CRM114-Status: GOOD ( 17.55 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-mips@linux-mips.org, kvm@vger.kernel.org, rkrcmar@redhat.com, benh@kernel.crashing.org, will.deacon@arm.com, christoffer.dall@arm.com, paulus@ozlabs.org, hpa@zytor.com, kys@microsoft.com, kvmarm@lists.cs.columbia.edu, sthemmin@microsoft.com, mpe@ellerman.id.au, x86@kernel.org, linux@armlinux.org.uk, michael.h.kelley@microsoft.com, mingo@redhat.com, catalin.marinas@arm.com, jhogan@kernel.org, Lan Tianyu , marc.zyngier@arm.com, haiyangz@microsoft.com, kvm-ppc@vger.kernel.org, bp@alien8.de, tglx@linutronix.de, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, ralf@linux-mips.org, paul.burton@mips.com, devel@linuxdriverproject.org, vkuznets@redhat.com, linuxppc-dev@lists.ozlabs.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 06/12/18 14:21, lantianyu1986@gmail.com wrote: > From: Lan Tianyu > > For nested memory virtualization, Hyper-v doesn't set write-protect > L1 hypervisor EPT page directory and page table node to track changes > while it relies on guest to tell it changes via HvFlushGuestAddressLlist > hypercall. HvFlushGuestAddressLlist hypercall provides a way to flush > EPT page table with ranges which are specified by L1 hypervisor. > > If L1 hypervisor uses INVEPT or HvFlushGuestAddressSpace hypercall to > flush EPT tlb, Hyper-V will invalidate associated EPT shadow page table > and sync L1's EPT table when next EPT page fault is triggered. > HvFlushGuestAddressLlist hypercall helps to avoid such redundant EPT > page fault and synchronization of shadow page table. > > This patchset is based on the Patch "KVM/VMX: Check ept_pointer before > flushing ept tlb"(https://marc.info/?l=kvm&m=154408169705686&w=2). > > Change since v4: > 1) Split flush address and flush list patches. This patchset only contains > flush address patches. Will post flush list patches later. > 2) Expose function hyperv_fill_flush_guest_mapping_list() > out of hyperv file > 3) Adjust parameter of hyperv_flush_guest_mapping_range() > 4) Reorder patchset and move Hyper-V and VMX changes ahead. > > Change since v3: > 1) Remove code of updating "tlbs_dirty" in kvm_flush_remote_tlbs_with_range() > 2) Remove directly tlb flush in the kvm_handle_hva_range() > 3) Move tlb flush in kvm_set_pte_rmapp() to kvm_mmu_notifier_change_pte() > 4) Combine Vitaly's "don't pass EPT configuration info to > vmx_hv_remote_flush_tlb()" fix > > Change since v2: > 1) Fix comment in the kvm_flush_remote_tlbs_with_range() > 2) Move HV_MAX_FLUSH_PAGES and HV_MAX_FLUSH_REP_COUNT to > hyperv-tlfs.h. > 3) Calculate HV_MAX_FLUSH_REP_COUNT in the macro definition > 4) Use HV_MAX_FLUSH_REP_COUNT to define length of gpa_list in > struct hv_guest_mapping_flush_list. > > Change since v1: > 1) Convert "end_gfn" of struct kvm_tlb_range to "pages" in order > to avoid confusion as to whether "end_gfn" is inclusive or exlusive. > 2) Add hyperv tlb range struct and replace kvm tlb range struct > with new struct in order to avoid using kvm struct in the hyperv > code directly. > > > > Lan Tianyu (10): > KVM: Add tlb_remote_flush_with_range callback in kvm_x86_ops > x86/hyper-v: Add HvFlushGuestAddressList hypercall support > x86/Hyper-v: Add trace in the > hyperv_nested_flush_guest_mapping_range() > KVM/VMX: Add hv tlb range flush support > KVM/MMU: Add tlb flush with range helper function > KVM: Replace old tlb flush function with new one to flush a specified > range. > KVM: Make kvm_set_spte_hva() return int > KVM/MMU: Move tlb flush in kvm_set_pte_rmapp() to > kvm_mmu_notifier_change_pte() > KVM/MMU: Flush tlb directly in the kvm_set_pte_rmapp() > KVM/MMU: Flush tlb directly in the kvm_zap_gfn_range() > > arch/arm/include/asm/kvm_host.h | 2 +- > arch/arm64/include/asm/kvm_host.h | 2 +- > arch/mips/include/asm/kvm_host.h | 2 +- > arch/mips/kvm/mmu.c | 3 +- > arch/powerpc/include/asm/kvm_host.h | 2 +- > arch/powerpc/kvm/book3s.c | 3 +- > arch/powerpc/kvm/e500_mmu_host.c | 3 +- > arch/x86/hyperv/nested.c | 80 +++++++++++++++++++++++++++++++ > arch/x86/include/asm/hyperv-tlfs.h | 32 +++++++++++++ > arch/x86/include/asm/kvm_host.h | 9 +++- > arch/x86/include/asm/mshyperv.h | 15 ++++++ > arch/x86/include/asm/trace/hyperv.h | 14 ++++++ > arch/x86/kvm/mmu.c | 96 +++++++++++++++++++++++++++++-------- > arch/x86/kvm/paging_tmpl.h | 3 +- > arch/x86/kvm/vmx.c | 63 +++++++++++++++++------- > virt/kvm/arm/mmu.c | 6 ++- > virt/kvm/kvm_main.c | 5 +- > 17 files changed, 292 insertions(+), 48 deletions(-) > Queued, thanks. Paolo _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel