From: "Gerd Hoffmann" <kraxel@redhat.com>
To: devel@edk2.groups.io, yuanhao.xie@intel.com
Cc: Guo Dong <guo.dong@intel.com>, Ray Ni <ray.ni@intel.com>,
Sean Rhodes <sean@starlabs.systems>,
James Lu <james.lu@intel.com>, Gua Guo <gua.guo@intel.com>
Subject: Re: [edk2-devel] [PATCH 2/2] UefiCpuPkg: After reset, wake up APs by SIPI.
Date: Mon, 27 Mar 2023 13:02:42 +0200 [thread overview]
Message-ID: <65wbjxccgyktntnkkkfk37ioauwyzgyg6nuxm4rrocdcny2wes@ffos4xwarql3> (raw)
In-Reply-To: <20230327031711.1575-3-yuanhao.xie@intel.com>
On Mon, Mar 27, 2023 at 11:17:11AM +0800, Yuanhao Xie wrote:
> Following a power-up or RESET, since all APs are already in the
> “wait-for-SIPI state,” the BSP can broadcast just a single SIPI IPI to
> the APs to wake them up and initialize them.
>
> Cc: Guo Dong <guo.dong@intel.com>
> Cc: Ray Ni <ray.ni@intel.com>
> Cc: Sean Rhodes <sean@starlabs.systems>
> Cc: James Lu <james.lu@intel.com>
> Cc: Gua Guo <gua.guo@intel.com>
> Signed-off-by: Yuanhao Xie <yuanhao.xie@intel.com>
This patch breaks OVMF (just boot the firmware in qemu image with '-smp 2').
take care,
Gerd
next prev parent reply other threads:[~2023-03-27 11:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-27 3:17 [PATCH 0/2] Wake up APs by a single SIPI Yuanhao Xie
2023-03-27 3:17 ` [PATCH 1/2] UefiCpuPkg: Add SendStartupIpiAllExcludingSelf Yuanhao Xie
2023-03-27 3:17 ` [PATCH 2/2] UefiCpuPkg: After reset, wake up APs by SIPI Yuanhao Xie
2023-03-27 11:02 ` Gerd Hoffmann [this message]
2023-03-29 8:50 ` [edk2-devel] " Yuanhao Xie
2023-03-29 13:29 ` Gerd Hoffmann
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