# Re: \[PATCH 0/4\] powerpc/security mitigation updates

- From: Michael Ellerman \<hidden\>
- Date: 2021-06-24 14:05:03 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2021/06/9523385
- Thread: https://ratatoskr.run/linuxppc-dev/2021/05/9522418/t.md

```text
On Mon, 3 May 2021 23:02:39 +1000, Nicholas Piggin wrote:
> This series adds a few missing bits added to recent pseries
> H_GET_CPU_CHARACTERISTICS and implements them, also removes
> a restriction from powernv for some of the flushes.
> 
> This is tested mianly in qemu where I just submitted a patch
> that adds support for these bits (not upstream yet).
> 
> [...]

Patches 1-3 applied to powerpc/next.

[1/4] powerpc/pseries: Get entry and uaccess flush required bits from H_GET_CPU_CHARACTERISTICS
      https://git.kernel.org/powerpc/c/65c7d070850e109a8a75a431f5a7f6eb4c007b77
[2/4] powerpc/security: Add a security feature for STF barrier
      https://git.kernel.org/powerpc/c/84ed26fd00c514da57cd46aa3728a48f1f9b35cd
[3/4] powerpc/pesries: Get STF barrier requirement from H_GET_CPU_CHARACTERISTICS
      https://git.kernel.org/powerpc/c/393eff5a7b357a23db3e786e24b5ba8762cc6820

cheers
```