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Re: [PATCH v10 03/38] x86/msr: Add the WRMSRNS instruction support
- To: "H. Peter Anvin" <hpa@xxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Xin Li <xin3.li@xxxxxxxxx>, linux-doc@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-edac@xxxxxxxxxxxxxxx, linux-hyperv@xxxxxxxxxxxxxxx, kvm@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx
- From: andrew.cooper3@xxxxxxxxxx
- Date: Fri, 15 Sep 2023 02:16:50 +0100
- Cc: mingo@xxxxxxxxxx, bp@xxxxxxxxx, dave.hansen@xxxxxxxxxxxxxxx, x86@xxxxxxxxxx, luto@xxxxxxxxxx, pbonzini@xxxxxxxxxx, seanjc@xxxxxxxxxx, peterz@xxxxxxxxxxxxx, jgross@xxxxxxxx, ravi.v.shankar@xxxxxxxxx, mhiramat@xxxxxxxxxx, jiangshanlai@xxxxxxxxx
- Delivery-date: Fri, 15 Sep 2023 01:16:59 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 15/09/2023 2:01 am, H. Peter Anvin wrote:
> The whole bit with alternatives and pvops being separate is a major
> maintainability problem, and honestly it never made any sense in the
> first place. Never have two mechanisms to do one job; it makes it
> harder to grok their interactions.
This bit is easy.
Juergen has already done the work to delete one of these two patching
mechanisms and replace it with the other.
https://lore.kernel.org/lkml/a32e211f-4add-4fb2-9e5a-480ae9b9bbf2@xxxxxxxx/
Unfortunately, it's only collecting pings and tumbleweeds.
~Andrew
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