From: Dave Hansen <dave.hansen@intel.com>
To: Saurabh Singh Sengar <ssengar@microsoft.com>,
Saurabh Sengar <ssengar@linux.microsoft.com>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"mingo@redhat.com" <mingo@redhat.com>,
"bp@alien8.de" <bp@alien8.de>,
"dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>,
"x86@kernel.org" <x86@kernel.org>,
"hpa@zytor.com" <hpa@zytor.com>,
KY Srinivasan <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
"wei.liu@kernel.org" <wei.liu@kernel.org>,
Dexuan Cui <decui@microsoft.com>,
"Michael Kelley (LINUX)" <mikelley@microsoft.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-hyperv@vger.kernel.org" <linux-hyperv@vger.kernel.org>
Subject: Re: [EXTERNAL] Re: [PATCH 1/2] x86/Kconfig: Allow CONFIG_X86_MPPARSE disable for OF platforms
Date: Thu, 25 May 2023 06:56:10 -0700 [thread overview]
Message-ID: <13922610-b9bc-ab4b-8482-9aae238396c7@intel.com> (raw)
In-Reply-To: <PUZP153MB074988C9F8F891533871173BBE46A@PUZP153MB0749.APCP153.PROD.OUTLOOK.COM>
On 5/25/23 00:06, Saurabh Singh Sengar wrote:
> When CONFIG_X86_MPPARSE is enabled, the kernel will scan low memory,
> looking for MP tables. In Hyper-V VBS setup, lower memory is assigned to VTL0.
> This lower memory may contain the actual MPPARSE table for VTL0,
> which can confuse the VTLx kernel and cause issues. (x > 0)
This still just seems wrong.
If an action crashes the kernel because of changes, we don't just
compile it out and move on. We add enumeration for the new feature
that's causing it and turn off the action at runtime.
next prev parent reply other threads:[~2023-05-25 13:56 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-11 14:54 Saurabh Sengar
2023-05-11 14:54 ` [PATCH 2/2] Drivers: hv: Kconfig: Add HYPERV_VTL_MODE dependencies Saurabh Sengar
2023-05-20 16:50 ` Michael Kelley (LINUX)
2023-05-24 16:09 ` Saurabh Singh Sengar
2023-05-20 16:39 ` [PATCH 1/2] x86/Kconfig: Allow CONFIG_X86_MPPARSE disable for OF platforms Michael Kelley (LINUX)
2023-05-23 17:52 ` Dave Hansen
2023-05-24 16:23 ` [EXTERNAL] " Saurabh Singh Sengar
2023-05-24 18:02 ` Dave Hansen
2023-05-25 7:06 ` Saurabh Singh Sengar
2023-05-25 13:56 ` Dave Hansen [this message]
2023-06-02 12:22 ` Saurabh Singh Sengar
2023-06-02 14:23 ` Dave Hansen
2023-06-02 16:25 ` [EXTERNAL] " Saurabh Singh Sengar
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