[PATCH kvmtool v4 0/8] arm64: Pointer Authentication and SVE support

From: Dave Martin <Dave.Martin@arm.com>
To: kvmarm@lists.cs.columbia.edu
Cc: Christoffer Dall <cdall@kernel.org>,
	Marc Zyngier <marc.zyngier@arm.com>,
	Andre Przywara <andre.przywara@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Kristina Martsenko <kristina.martsenko@arm.com>,
	Zhang Lei <zhang.lei@jp.fujitsu.com>,
	Amit Daniel Kachhap <amit.kachhap@arm.com>,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH kvmtool v4 0/8] arm64: Pointer Authentication and SVE support
Date: Fri,  7 Jun 2019 12:26:21 +0100	[thread overview]
Message-ID: <1559906789-20936-1-git-send-email-Dave.Martin@arm.com> (raw)

This series, based on kvmtool master [1], implements basic support for
pointer authentication and SVE for guests.  This superseded the
previous v3 series [2].

A git tree is also available [3].

For pointer auth, I include Amit's v10 patch [4], with some additional
refactoring to sit nicely alongside SVE, and some cosmetic / diagnostic
tidyups discussed during review on-list.  (I've kept the extra changes
separate for easier review, but they could be folded if desired.)

[Maintainer note: I'd like Amit to comment on my changes on top of his
pointer auth patch so that that can be folded together as appropriate.]

This series has been tested against Linux v5.2-rc1.

After discussion with Will, the command-line options for controlling
pointer auth and SVE support have all been dropped, since they are not
useful to normal users: instead, we just default to the best
configuration that the host supports.  There's always the option to add
this functionality back in some more appropriate form later, if someone
has a use for it.

See the individual patches for other minor changes.

[1] 
git://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool.git master
https://git.kernel.org/pub/scm/linux/kernel/git/will/kvmtool.git/log/
eaeaf60808d6 ("virtio/blk: Avoid taking pointer to packed struct")

[2] [PATCH kvmtool v3 0/9] arm64: Pointer Authentication and SVE support
https://lists.cs.columbia.edu/pipermail/kvmarm/2019-May/036050.html

[3] [PATCH v10 3/5] KVM: arm64: Add userspace flag to enable pointer authentication
https://lore.kernel.org/linux-arm-kernel/1555994558-26349-6-git-send-email-amit.kachhap@arm.com/

[4]
git://linux-arm.org/kvmtool-dm.git sve/v4/head
http://linux-arm.org/git?p=kvmtool-dm.git;a=shortlog;h=refs/heads/sve/v4/head

Amit Daniel Kachhap (1):
  KVM: arm/arm64: Add a vcpu feature for pointer authentication

Dave Martin (7):
  update_headers.sh: Add missing shell quoting
  update_headers.sh: Cleanly report failure on error
  update_headers.sh: arm64: Copy sve_context.h if available
  update_headers: Sync kvm UAPI headers with linux v5.2-rc1
  KVM: arm/arm64: Back out ptrauth command-line arguments
  arm/arm64: Factor out ptrauth vcpu feature setup
  arm64: Add SVE support

 arm/aarch32/include/kvm/kvm-cpu-arch.h |  7 +++++
 arm/aarch64/include/asm/kvm.h          | 43 +++++++++++++++++++++++++++
 arm/aarch64/include/asm/sve_context.h  | 53 ++++++++++++++++++++++++++++++++++
 arm/aarch64/include/kvm/kvm-cpu-arch.h |  3 ++
 arm/aarch64/kvm-cpu.c                  | 28 ++++++++++++++++++
 arm/kvm-cpu.c                          |  5 ++++
 include/linux/kvm.h                    | 15 ++++++++--
 powerpc/include/asm/kvm.h              | 48 ++++++++++++++++++++++++++++++
 util/update_headers.sh                 | 26 +++++++++++++----
 x86/include/asm/kvm.h                  |  1 +
 10 files changed, 221 insertions(+), 8 deletions(-)
 create mode 100644 arm/aarch64/include/asm/sve_context.h

-- 
2.1.4

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