Re: [PATCH v17 0/6] MTE support for KVM guest

From: Marc Zyngier
Date: Tue Jun 22 2021 - 10:22:01 EST


On Mon, 21 Jun 2021 12:17:10 +0100, Steven Price wrote:
> 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.
>
> [...]

Applied to next, thanks!

[1/6] arm64: mte: Sync tags for pages where PTE is untagged
commit: 69e3b846d8a753f9f279f29531ca56b0f7563ad0
[2/6] KVM: arm64: Introduce MTE VM feature
commit: ea7fc1bb1cd1b92b42b1d9273ce7e231d3dc9321
[3/6] KVM: arm64: Save/restore MTE registers
commit: e1f358b5046479d2897f23b1d5b092687c6e7a67
[4/6] KVM: arm64: Expose KVM_ARM_CAP_MTE
commit: 673638f434ee4a00319e254ade338c57618d6f7e
[5/6] KVM: arm64: ioctl to fetch/store tags in a guest
commit: f0376edb1ddcab19a473b4bf1fbd5b6bbed3705b
[6/6] KVM: arm64: Document MTE capability and ioctl
commit: 04c02c201d7e8149ae336ead69fb64e4e6f94bc9

I performed a number of changes in user_mem_abort(), so please
have a look at the result. It is also pretty late in the merge
cycle, so if anything looks amiss, I'll just drop it.

Cheers,

M.
--
Without deviation from the norm, progress is not possible.