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Re: [PATCH v16 3/7] KVM: arm64: Introduce MTE VM feature
From: |
Catalin Marinas |
Subject: |
Re: [PATCH v16 3/7] KVM: arm64: Introduce MTE VM feature |
Date: |
Fri, 18 Jun 2021 15:47:08 +0100 |
User-agent: |
Mutt/1.10.1 (2018-07-13) |
On Fri, Jun 18, 2021 at 02:28:22PM +0100, Steven Price wrote:
> Add a new VM feature 'KVM_ARM_CAP_MTE' which enables memory tagging
> for a VM. This will expose the feature to the guest and automatically
> tag memory pages touched by the VM as PG_mte_tagged (and clear the tag
> storage) to ensure that the guest cannot see stale tags, and so that
> the tags are correctly saved/restored across swap.
>
> Actually exposing the new capability to user space happens in a later
> patch.
>
> Signed-off-by: Steven Price <steven.price@arm.com>
This works for me:
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
- [PATCH v16 0/7] MTE support for KVM guest, Steven Price, 2021/06/18
- [PATCH v16 2/7] arm64: mte: Sync tags for pages where PTE is untagged, Steven Price, 2021/06/18
- [PATCH v16 3/7] KVM: arm64: Introduce MTE VM feature, Steven Price, 2021/06/18
- [PATCH v16 4/7] KVM: arm64: Save/restore MTE registers, Steven Price, 2021/06/18
- [PATCH v16 5/7] KVM: arm64: Expose KVM_ARM_CAP_MTE, Steven Price, 2021/06/18
- [PATCH v16 6/7] KVM: arm64: ioctl to fetch/store tags in a guest, Steven Price, 2021/06/18
- [PATCH v16 7/7] KVM: arm64: Document MTE capability and ioctl, Steven Price, 2021/06/18