From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yw1-f201.google.com (mail-yw1-f201.google.com [209.85.128.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 287351CCED9 for ; Tue, 5 Nov 2024 05:53:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730786032; cv=none; b=eerFbyvI11xODxJKHq382UXs+XoqKQBRTnLjLgD8+6UfEqlDJS1+rKS4Q+p4HPuUsIpH5g9AVAvS79xdlfMZOAAyC+QitIrwtnNOAK9zMCqvOKhD4MIcbBq8iwTCMsaCqhY3que0H05ZqGjFATqlRxqPB4M+bKy54xDeuJ89Gtw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730786032; c=relaxed/simple; bh=eJlzUMcpOmWHJiSJMWY8rp4QK+XoHVpYEtzFQswiFbk=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=F1FNYbb5XLLd+QTALZxTrq5VzLlJ6ngtuJ2SLF5HO219PNZtzXQR1vupQInmDNobJJWlbEmKVYQkWx4TCINiDbMvxAYMoTtAVIyBxFIxc/LKQsm8Hri6K+jTIJNzfvh8PvnEgOflJxIDmQfIaFM1yDJZqU0J8U5b0iLh3vdcV2g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=1Q5zT7Kd; arc=none smtp.client-ip=209.85.128.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="1Q5zT7Kd" Received: by mail-yw1-f201.google.com with SMTP id 00721157ae682-6ea9618de40so29701177b3.3 for ; Mon, 04 Nov 2024 21:53:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1730786030; x=1731390830; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=o6I0lsXsH1rGJHzKMzLgK+XDkNKkWp36WmP2kFDs1jI=; b=1Q5zT7Kd+V13xaQXEcSOv4hkamoujUdt7E3nfBqylUkbKCBoCIzsP7OIwsRF3/2UFU G2aydnex1ijP4WXi4ITjtvFS2TE3Cco+PuKkxcIvoJT78H8dd2Tn75WS2Ak6gec7psbo sg5rlJR4fP20yeHjgDFLan58rQJj0hv610DSjbOAlTSRl64YT2S1QHbrhIM0ndFDL2gO IYuEEfVRBSO3cNeK5XNEUXUesq4q9CK4HpQd6R/UZRxt6ayb0H4cdX3C+ORxxW7cYIty WJ1547FYsfjZ13Vx0HLtDEP9J52TT5dX88rEZQNu5MeJoRD/lL/FCpcatXNGJPwD9tUL fmKA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730786030; x=1731390830; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=o6I0lsXsH1rGJHzKMzLgK+XDkNKkWp36WmP2kFDs1jI=; b=HBvcf2WRkcGEuNBbmgseBWpgHXKXo2u2HgQKPcID6Kqw8KwxguQ9L9ztVPvpjgncxN /HCaEgp6W+oHKL7hrffUZO6tgeqRT5RljvGNpVIAuccsv6D1jKSFwpOUGD+0JUSUz2uE blBRsT6vFArrZiDZZOLkgguyScAHrrN5a1727sw8J9AzQxL7GguzQImdXs9FIpIb97gn 6qt5pspNoiDcQxiTDJyrEqON3Sb3+NG+OactdRqs0/4a4nlNwUORR0/zbxsEA3m9pj85 QDYlcaIMOPlI5J5ou7ffc/MFWSjt5OrAW0vRHagvhQnfyQfGFz+OWaXPEdgzAvNU57dg j+Ag== X-Forwarded-Encrypted: i=1; AJvYcCXXjPgv8qjP8ah9DYtGzYizQcb14WZJNmsfUt91PxcYhspgAKFwCXehZocuGXir6NwXMgMmZcyNUnXZDQU=@vger.kernel.org X-Gm-Message-State: AOJu0YyDvabVJM75SpOqpvAoLg/Vq0QTbYCAfWKMEWyTV2NXeB6UBqqI zmPCBbj4RkXGsBbmiqyuwvXjneCx/NAC+w2jqLY7p8wDEhRhMYu2WODfxMqDl3+tqLZX42oHuL7 xUg== X-Google-Smtp-Source: AGHT+IHmt5sO/CGCgduHfJxMGbReWDqaMZI7StkG46sJTWcczU8fUEuPHD4g/HJnJzDHoYjdX9OGGAkVpzc= X-Received: from zagreus.c.googlers.com ([fda3:e722:ac3:cc00:9d:3983:ac13:c240]) (user=seanjc job=sendgmr) by 2002:a05:690c:4489:b0:6db:c6eb:bae9 with SMTP id 00721157ae682-6e9d898f08bmr16943867b3.2.1730786030202; Mon, 04 Nov 2024 21:53:50 -0800 (PST) Date: Mon, 4 Nov 2024 21:53:48 -0800 In-Reply-To: <173039503553.1508387.3074658713815866060.b4-ty@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20241009154953.1073471-1-seanjc@google.com> <173039503553.1508387.3074658713815866060.b4-ty@google.com> Message-ID: Subject: Re: [PATCH v3 00/14] KVM: selftests: Morph max_guest_mem to mmu_stress From: Sean Christopherson To: Marc Zyngier , Oliver Upton , Anup Patel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Paolo Bonzini , Christian Borntraeger , Janosch Frank , Claudio Imbrenda Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Andrew Jones , James Houghton Content-Type: text/plain; charset="us-ascii" On Thu, Oct 31, 2024, Sean Christopherson wrote: > On Wed, 09 Oct 2024 08:49:39 -0700, Sean Christopherson wrote: > > The main purpose of this series is to convert the max_guest_memory_test > > into a more generic mmu_stress_test. The basic gist of the "conversion" > > is to have the test do mprotect() on guest memory while vCPUs are > > accessing said memory, e.g. to verify KVM and mmu_notifiers are working > > as intended. > > > > Patches 1-4 are a somewhat unexpected side quest. The original plan was > > that patch 3 would be a single patch, but things snowballed. > > > > [...] > > Applied to kvm-x86 selftests, with the typo fixup pointed out by James. Thanks! > > [01/14] KVM: Move KVM_REG_SIZE() definition to common uAPI header > https://github.com/kvm-x86/linux/commit/5e07fd0bf516 > [02/14] KVM: selftests: Disable strict aliasing > https://github.com/kvm-x86/linux/commit/d1ce2bcd8d2e > [03/14] KVM: selftests: Return a value from vcpu_get_reg() instead of using an out-param > https://github.com/kvm-x86/linux/commit/5c6c7b71a45c > [04/14] KVM: selftests: Assert that vcpu_{g,s}et_reg() won't truncate > https://github.com/kvm-x86/linux/commit/6aa2df3eb90b > [05/14] KVM: selftests: Check for a potential unhandled exception iff KVM_RUN succeeded > https://github.com/kvm-x86/linux/commit/be9f2746d20b > [06/14] KVM: selftests: Rename max_guest_memory_test to mmu_stress_test > https://github.com/kvm-x86/linux/commit/06694f27cfcc > [07/14] KVM: selftests: Only muck with SREGS on x86 in mmu_stress_test > https://github.com/kvm-x86/linux/commit/8556ce365a07 > [08/14] KVM: selftests: Compute number of extra pages needed in mmu_stress_test > https://github.com/kvm-x86/linux/commit/c7b7876ac5d4 > [09/14] KVM: sefltests: Explicitly include ucall_common.h in mmu_stress_test.c > https://github.com/kvm-x86/linux/commit/a657856469e1 > [10/14] KVM: selftests: Enable mmu_stress_test on arm64 > https://github.com/kvm-x86/linux/commit/1e53cde06102 > [11/14] KVM: selftests: Use vcpu_arch_put_guest() in mmu_stress_test > https://github.com/kvm-x86/linux/commit/8630563012b9 > [12/14] KVM: selftests: Precisely limit the number of guest loops in mmu_stress_test > https://github.com/kvm-x86/linux/commit/3d4585c220dc > [13/14] KVM: selftests: Add a read-only mprotect() phase to mmu_stress_test > https://github.com/kvm-x86/linux/commit/eaafeebca75a > [14/14] KVM: selftests: Verify KVM correctly handles mprotect(PROT_READ) > https://github.com/kvm-x86/linux/commit/a3cd5c187742 As mentioned later in the thread[*], I dropped this series from the 6.13 queue and will instead target 6.14. I did however grab the no-strict-aliasing fix for 6.12, and tagged it for stable. There's no reason to wait to land that commit, and I definitely have no desire to ever debug that mess again. [02/14] KVM: selftests: Disable strict aliasing https://github.com/kvm-x86/linux/commit/5b188cc4866a [*] https://lore.kernel.org/all/ZyT61FF0-g8gKZfc@google.com