[GIT,PULL] KVM: Memslots hardening/cleanups for 6.14

Message ID	20250117010718.2328467-2-seanjc@google.com (mailing list archive)
State	New
Headers	show Received: from mail-pj1-f74.google.com (mail-pj1-f74.google.com [209.85.216.74]) (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 CE8733B1A2 for <kvm@vger.kernel.org>; Fri, 17 Jan 2025 01:07:24 +0000 (UTC) Reply-To: Sean Christopherson <seanjc@google.com> Date: Thu, 16 Jan 2025 17:07:12 -0800 In-Reply-To: <20250117010718.2328467-1-seanjc@google.com> Precedence: bulk Mime-Version: 1.0 References: <20250117010718.2328467-1-seanjc@google.com> Message-ID: <20250117010718.2328467-2-seanjc@google.com> Subject: [GIT PULL] KVM: Memslots hardening/cleanups for 6.14 From: Sean Christopherson <seanjc@google.com> To: Paolo Bonzini <pbonzini@redhat.com> Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Sean Christopherson <seanjc@google.com> Content-Type: text/plain; charset="UTF-8"
Series	[GIT,PULL] KVM: Memslots hardening/cleanups for 6.14 \| expand [GIT,PULL] KVM: Memslots hardening/cleanups for 6.14

Message ID

20250117010718.2328467-2-seanjc@google.com (mailing list archive)

State

New

Headers

Reply-To: Sean Christopherson <seanjc@google.com>
Date: Thu, 16 Jan 2025 17:07:12 -0800
In-Reply-To: <20250117010718.2328467-1-seanjc@google.com>
Precedence: bulk
Mime-Version: 1.0
References: <20250117010718.2328467-1-seanjc@google.com>
Message-ID: <20250117010718.2328467-2-seanjc@google.com>
Subject: [GIT PULL] KVM: Memslots hardening/cleanups for 6.14
From: Sean Christopherson <seanjc@google.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
	Sean Christopherson <seanjc@google.com>
Content-Type: text/plain; charset="UTF-8"

Series

[GIT,PULL] KVM: Memslots hardening/cleanups for 6.14 | expand

Message

Sean Christopherson Jan. 17, 2025, 1:07 a.m. UTC

Please pull a small series to clean up and harden kvm_set_memory_region().
KVM s390 is building on this branch/tag to create a KVM-internal memslot for
its ucontrol stuff, hence the dedicated pull request (and I didn't have any
other pending "generic" changes).

https://lore.kernel.org/all/20250116113355.32184-1-imbrenda@linux.ibm.com


The following changes since commit 10b2c8a67c4b8ec15f9d07d177f63b563418e948:

  Merge tag 'kvm-x86-fixes-6.13-rcN' of https://github.com/kvm-x86/linux into HEAD (2024-12-22 12:59:33 -0500)

are available in the Git repository at:

  https://github.com/kvm-x86/linux.git tags/kvm-memslots-6.14

for you to fetch changes up to 0cc3cb2151f9830274e7bef39a23dc1da1ecd34a:

  KVM: Disallow all flags for KVM-internal memslots (2025-01-14 17:36:16 -0800)

----------------------------------------------------------------
KVM kvm_set_memory_region() cleanups and hardening for 6.14:

 - Add proper lockdep assertions when setting memory regions.

 - Add a dedicated API for setting KVM-internal memory regions.

 - Explicitly disallow all flags for KVM-internal memory regions.

----------------------------------------------------------------
Sean Christopherson (5):
      KVM: Open code kvm_set_memory_region() into its sole caller (ioctl() API)
      KVM: Assert slots_lock is held when setting memory regions
      KVM: Add a dedicated API for setting KVM-internal memslots
      KVM: x86: Drop double-underscores from __kvm_set_memory_region()
      KVM: Disallow all flags for KVM-internal memslots

 arch/x86/kvm/x86.c       |  7 ++++---
 include/linux/kvm_host.h |  8 +++-----
 virt/kvm/kvm_main.c      | 33 ++++++++++++++-------------------
 3 files changed, 21 insertions(+), 27 deletions(-)

[GIT,PULL] KVM: Memslots hardening/cleanups for 6.14

Pull-request

Message