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Re: [RFC PATCH v2 06/34] x86/msr: Use the alternatives mechanism to read PMC
- To: Juergen Gross <jgross@xxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, kvm@xxxxxxxxxxxxxxx, linux-perf-users@xxxxxxxxxxxxxxx, linux-hyperv@xxxxxxxxxxxxxxx, virtualization@xxxxxxxxxxxxxxx, linux-pm@xxxxxxxxxxxxxxx, linux-edac@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-acpi@xxxxxxxxxxxxxxx, linux-hwmon@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, platform-driver-x86@xxxxxxxxxxxxxxx
- From: Xin Li <xin@xxxxxxxxx>
- Date: Wed, 23 Apr 2025 00:40:40 -0700
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- Delivery-date: Wed, 23 Apr 2025 07:42:16 +0000
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- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 4/22/2025 2:28 AM, Juergen Gross wrote:
I have worked rather hard to make it less intrusive, especially by removing
the paravirt specific code patching (now all done via alternative patching)
and by removing 32-bit Xen PV mode.
I looked at the optimization, and it is a nice improvement.
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