From: Steven Price <steven.price@arm.com>
To: Catalin Marinas <catalin.marinas@arm.com>,
Marc Zyngier <maz@kernel.org>, Will Deacon <will@kernel.org>
Cc: Steven Price <steven.price@arm.com>,
James Morse <james.morse@arm.com>,
Julien Thierry <julien.thierry.kdev@gmail.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Dave Martin <Dave.Martin@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Thomas Gleixner <tglx@linutronix.de>,
qemu-devel@nongnu.org, Juan Quintela <quintela@redhat.com>,
"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
Richard Henderson <richard.henderson@linaro.org>,
Peter Maydell <peter.maydell@linaro.org>,
Andrew Jones <drjones@redhat.com>
Subject: [PATCH v17 0/6] MTE support for KVM guest
Date: Mon, 21 Jun 2021 12:17:10 +0100 [thread overview]
Message-ID: <20210621111716.37157-1-steven.price@arm.com> (raw)
This series adds support for using the Arm Memory Tagging Extensions
(MTE) in a KVM guest.
Changes since v16[1]:
- Dropped the first patch ("Handle race when synchronising tags") as
it's not KVM specific and by restricting MAP_SHARED in KVM there is
no longer a dependency.
- Change return code when creating a memslot with VM_SHARED regions to
-EFAULT (and correctly jump to out_unlock on this error case).
- Clarify documentation thanks to Catalin.
- Rebase onto v5.13-rc4.
- Add Reviewed-by tags from Catalin - thanks!
[1] https://lore.kernel.org/r/20210618132826.54670-1-steven.price%40arm.com
Steven Price (6):
arm64: mte: Sync tags for pages where PTE is untagged
KVM: arm64: Introduce MTE VM feature
KVM: arm64: Save/restore MTE registers
KVM: arm64: Expose KVM_ARM_CAP_MTE
KVM: arm64: ioctl to fetch/store tags in a guest
KVM: arm64: Document MTE capability and ioctl
Documentation/virt/kvm/api.rst | 61 ++++++++++++++++
arch/arm64/include/asm/kvm_arm.h | 3 +-
arch/arm64/include/asm/kvm_emulate.h | 3 +
arch/arm64/include/asm/kvm_host.h | 12 ++++
arch/arm64/include/asm/kvm_mte.h | 66 +++++++++++++++++
arch/arm64/include/asm/mte-def.h | 1 +
arch/arm64/include/asm/mte.h | 4 +-
arch/arm64/include/asm/pgtable.h | 22 +++++-
arch/arm64/include/asm/sysreg.h | 3 +-
arch/arm64/include/uapi/asm/kvm.h | 11 +++
arch/arm64/kernel/asm-offsets.c | 2 +
arch/arm64/kernel/mte.c | 18 +++--
arch/arm64/kvm/arm.c | 16 +++++
arch/arm64/kvm/guest.c | 82 ++++++++++++++++++++++
arch/arm64/kvm/hyp/entry.S | 7 ++
arch/arm64/kvm/hyp/exception.c | 3 +-
arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h | 21 ++++++
arch/arm64/kvm/mmu.c | 64 ++++++++++++++++-
arch/arm64/kvm/reset.c | 4 ++
arch/arm64/kvm/sys_regs.c | 32 +++++++--
include/uapi/linux/kvm.h | 2 +
21 files changed, 419 insertions(+), 18 deletions(-)
create mode 100644 arch/arm64/include/asm/kvm_mte.h
--
2.20.1
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next reply other threads:[~2021-06-21 11:20 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-21 11:17 Steven Price [this message]
2021-06-21 11:17 ` [PATCH v17 1/6] arm64: mte: Sync tags for pages where PTE is untagged Steven Price
2021-06-21 11:17 ` [PATCH v17 2/6] KVM: arm64: Introduce MTE VM feature Steven Price
2021-06-21 17:00 ` Fuad Tabba
2021-06-22 11:29 ` Marc Zyngier
2021-06-21 11:17 ` [PATCH v17 3/6] KVM: arm64: Save/restore MTE registers Steven Price
2021-06-22 9:46 ` Fuad Tabba
2021-06-21 11:17 ` [PATCH v17 4/6] KVM: arm64: Expose KVM_ARM_CAP_MTE Steven Price
2021-06-22 8:07 ` Fuad Tabba
2021-06-22 8:48 ` Marc Zyngier
2021-06-21 11:17 ` [PATCH v17 5/6] KVM: arm64: ioctl to fetch/store tags in a guest Steven Price
2021-06-22 8:56 ` Fuad Tabba
2021-06-22 10:25 ` Marc Zyngier
2021-06-22 10:56 ` Fuad Tabba
2021-06-23 14:07 ` Steven Price
2021-06-24 13:35 ` Marc Zyngier
2021-06-24 13:42 ` Steven Price
2021-06-21 11:17 ` [PATCH v17 6/6] KVM: arm64: Document MTE capability and ioctl Steven Price
2021-06-22 9:42 ` Fuad Tabba
2021-06-22 10:35 ` Marc Zyngier
2021-06-22 10:41 ` Fuad Tabba
2021-06-22 14:21 ` [PATCH v17 0/6] MTE support for KVM guest Marc Zyngier
2021-06-23 14:09 ` Steven Price
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