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From: "Gerd Hoffmann" <kraxel@redhat.com>
To: Michael Brown <mcb30@ipxe.org>
Cc: devel@edk2.groups.io, ray.ni@intel.com,
	 Laszlo Ersek <lersek@redhat.com>,
	Pedro Falcato <pedro.falcato@gmail.com>,
	 "Kinney, Michael D" <michael.d.kinney@intel.com>,
	"Desimone, Nathaniel L" <nathaniel.l.desimone@intel.com>,
	 "Kumar, Rahul R" <rahul.r.kumar@intel.com>,
	"Liu, Zhiguang" <zhiguang.liu@intel.com>
Subject: Re: [edk2-devel] [PATCH 1/6] UefiCpuPkg/LocalApicTimerDxe: Duplicate OvmfPkg/LocalApicTimerDxe driver
Date: Mon, 22 Jan 2024 11:15:14 +0100	[thread overview]
Message-ID: <gqokem3cxlbegiagupsq2mpo4yvylrkls3ugoc6lmc5m6ks65y@r3dranjb5cra> (raw)
In-Reply-To: <0102018d22d0f904-3aa0bdff-abe9-4c74-8316-0dc17122f372-000000@eu-west-1.amazonses.com>

  Hi,

> I do appreciate that it's difficult to understand the internals of
> NestedInterruptTplLib.  It's fundamentally having to solve a very difficult
> problem within the constraints of the UEFI API.  I think the solution that
> NestedInterruptTplLib provides is as simple as it's possible to get, and it
> does at least have the advantage that all of the complexity is hidden inside
> the library.

I think NestedInterruptTplLib is a good solution for the problem and I
fully support moving it to MdeModulePkg.

Yes, the library is complex.  I reviewed it when it was merged to
OvmfPkg, and even with the very good comments it took me a few hours to
fully understand the logic.  But the problem is complex too, I also
think there is no simpler way to solve it.

take care,
  Gerd



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  parent reply	other threads:[~2024-01-22 10:15 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-15  8:03 [edk2-devel] Add LocalApicTimerDxe driver in UefiCpuPkg Ni, Ray
2024-01-15  8:03 ` [edk2-devel] [PATCH 1/6] UefiCpuPkg/LocalApicTimerDxe: Duplicate OvmfPkg/LocalApicTimerDxe driver Ni, Ray
2024-01-15  8:59   ` Pedro Falcato
2024-01-15 18:10     ` Michael D Kinney
2024-01-16 10:02       ` Laszlo Ersek
2024-01-16 17:17         ` Michael D Kinney
2024-01-15 19:30     ` Laszlo Ersek
2024-01-16  8:47       ` Gerd Hoffmann
2024-01-16  9:48         ` Michael Brown
2024-01-16 14:34           ` Laszlo Ersek
2024-01-16 15:16             ` Michael Brown
2024-01-16 15:37               ` Laszlo Ersek
2024-01-17  7:11                 ` Ni, Ray
2024-01-17 10:46                   ` Michael Brown
2024-01-19 13:14                     ` Ni, Ray
2024-01-19 17:42                       ` Michael Brown
2024-01-19 23:44                         ` Ni, Ray
2024-01-20  0:49                           ` Michael Brown
2024-01-22 10:15                         ` Gerd Hoffmann [this message]
2024-01-15  8:03 ` [edk2-devel] [PATCH 2/6] UefiCpuPkg/LocalApicTimerDxe: Remove NestedInterruptTplLib call Ni, Ray
2024-01-15  8:03 ` [edk2-devel] [PATCH 3/6] UefiCpuPkg: Add LocalApicTimerDxe driver in DSC file Ni, Ray
2024-01-15  8:03 ` [edk2-devel] [PATCH 4/6] UefiCpuPkg/LocalApicTimerDxe: Enhance Timer Frequency calculation logic Ni, Ray
2024-01-15  8:03 ` [edk2-devel] [PATCH 5/6] UefiCpuPkg/LocalApicTimerDxe: warn if APIC Timer is used by other code Ni, Ray
2024-01-15  8:03 ` [edk2-devel] [PATCH 6/6] UefiCpuPkg/LocalApicTimerDxe: Passing fixed timer period is not a bug Ni, Ray

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