linux-kernel - Re: [RESEND v13 15/25] CXL/PCI: Introduce PCI_ERS_RESULT

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Message-ID: <691e5e19c94d0_1a37510063@dwillia2-mobl4.notmuch>
Date: Wed, 19 Nov 2025 16:17:29 -0800
From: <dan.j.williams@...el.com>
To: Terry Bowman <terry.bowman@....com>, <dave@...olabs.net>,
	<jonathan.cameron@...wei.com>, <dave.jiang@...el.com>,
	<alison.schofield@...el.com>, <dan.j.williams@...el.com>,
	<bhelgaas@...gle.com>, <shiju.jose@...wei.com>, <ming.li@...omail.com>,
	<Smita.KoralahalliChannabasappa@....com>, <rrichter@....com>,
	<dan.carpenter@...aro.org>, <PradeepVineshReddy.Kodamati@....com>,
	<lukas@...ner.de>, <Benjamin.Cheatham@....com>,
	<sathyanarayanan.kuppuswamy@...ux.intel.com>, <linux-cxl@...r.kernel.org>,
	<alucerop@....com>, <ira.weiny@...el.com>
CC: <linux-kernel@...r.kernel.org>, <linux-pci@...r.kernel.org>,
	<terry.bowman@....com>
Subject: Re: [RESEND v13 15/25] CXL/PCI: Introduce PCI_ERS_RESULT_PANIC

Terry Bowman wrote:
> The CXL driver's error handling for uncorrectable errors (UCE) will be
> updated in the future. A required change is for the error handlers to
> to force a system panic when a UCE is detected.
> 
> Introduce PCI_ERS_RESULT_PANIC as a 'enum pci_ers_result' type. This will
> be used by CXL UCE fatal and non-fatal recovery in future patches. Update
> PCIe recovery documentation with details of PCI_ERS_RESULT_PANIC.

I would also note that this starts to bring Linux PCI core native AER
handling with ACPI GHES CPER_SEV_FATAL handling.

Reviewed-by: Dan Williams <dan.j.williams@...el.com>