linux-kernel - [PATCH v2 0/5] KVM: kvm_set_memory

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Message-ID: <20250111002022.1230573-1-seanjc@google.com>
Date: Fri, 10 Jan 2025 16:20:17 -0800
From: Sean Christopherson <seanjc@...gle.com>
To: Sean Christopherson <seanjc@...gle.com>, Paolo Bonzini <pbonzini@...hat.com>
Cc: kvm@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Tao Su <tao1.su@...ux.intel.com>, Claudio Imbrenda <imbrenda@...ux.ibm.com>, 
	Christian Borntraeger <borntraeger@...ibm.com>, Xiaoyao Li <xiaoyao.li@...el.com>
Subject: [PATCH v2 0/5] KVM: kvm_set_memory_region() cleanups

Cleanups related to kvm_set_memory_region(), salvaged from similar patches
that were flying around when we were sorting out KVM_SET_USER_MEMORY_REGION2.

And, hopefully, the KVM-internal memslots hardening will also be useful for
s390's ucontrol stuff (https://lore.kernel.org/all/Z4FJNJ3UND8LSJZz@google.com).

v2:
 - Keep check_memory_region_flags() where it is. [Xiaoyao]
 - Rework the changelog for the last patch to account for the change in
   motiviation.
 - Fix double spaces goofs. [Tao]
 - Add a lockdep assertion in the x86 code, too. [Tao]

v1: https://lore.kernel.org/all/20240802205003.353672-1-seanjc@google.com

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(-)


base-commit: 10b2c8a67c4b8ec15f9d07d177f63b563418e948
-- 
2.47.1.613.gc27f4b7a9f-goog