linux-kernel - Re: [PATCH] x86/sev: Fix host kdump support for SNP

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Message-ID: <20240829150401.GGZtCN4ZtVyqjYHbpD@fat_crate.local>
Date: Thu, 29 Aug 2024 17:04:01 +0200
From: Borislav Petkov <bp@...en8.de>
To: Sean Christopherson <seanjc@...gle.com>
Cc: Ashish Kalra <Ashish.Kalra@....com>, pbonzini@...hat.com,
	dave.hansen@...ux.intel.com, tglx@...utronix.de, mingo@...hat.com,
	x86@...nel.org, hpa@...or.com, peterz@...radead.org,
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
	thomas.lendacky@....com, michael.roth@....com,
	kexec@...ts.infradead.org, linux-coco@...ts.linux.dev
Subject: Re: [PATCH] x86/sev: Fix host kdump support for SNP

On Thu, Aug 29, 2024 at 07:50:16AM -0700, Sean Christopherson wrote:
> Because if the host is panicking, guests are hosed regardless.

Are they?

I read "active SNP VMs"...

I guess if it reaches svm_emergency_disable() we're hosed anyway and that's
what you mean but I'm not sure...

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette