From: Vasant Hegde <vasant.hegde@amd.com>
To: Ashish Kalra <Ashish.Kalra@amd.com>,
joro@8bytes.org, suravee.suthikulpanit@amd.com,
thomas.lendacky@amd.com, Sairaj.ArunKodilkar@amd.com,
herbert@gondor.apana.org.au
Cc: seanjc@google.com, pbonzini@redhat.com, will@kernel.org,
robin.murphy@arm.com, john.allen@amd.com, davem@davemloft.net,
bp@alien8.de, michael.roth@amd.com, iommu@lists.linux.dev,
linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org,
kvm@vger.kernel.org
Subject: Re: [PATCH v3 3/4] crypto: ccp: Skip SNP INIT for kdump boot
Date: Wed, 16 Jul 2025 14:50:38 +0530 [thread overview]
Message-ID: <d7b3e0d1-4a93-4245-b09a-701bb14553d4@amd.com> (raw)
In-Reply-To: <ef1b21891b8aea8ffab90b521c37ab79d5513a7b.1752605725.git.ashish.kalra@amd.com>
On 7/16/2025 12:57 AM, Ashish Kalra wrote:
> From: Ashish Kalra <ashish.kalra@amd.com>
>
> If SNP is enabled and initialized in the previous kernel then SNP is
> already initialized for kdump boot and attempting SNP INIT again
> during kdump boot causes SNP INIT failure and eventually leads to
> IOMMU failures.
>
> Skip SNP INIT if doing kdump boot.
Just double checking, do we need check for snp_rmptable_init()?
-Vasant
next prev parent reply other threads:[~2025-07-16 9:20 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-15 19:26 [PATCH v3 0/4] iommu/amd: Fix host kdump support for SNP Ashish Kalra
2025-07-15 19:26 ` [PATCH v3 1/4] iommu/amd: Add support to remap/unmap IOMMU buffers for kdump Ashish Kalra
2025-07-16 9:19 ` Vasant Hegde
2025-07-16 21:55 ` Kalra, Ashish
2025-07-17 7:05 ` Vasant Hegde
2025-07-17 7:16 ` Kalra, Ashish
2025-07-15 19:27 ` [PATCH v3 2/4] iommu/amd: Reuse device table " Ashish Kalra
2025-07-16 9:42 ` Vasant Hegde
2025-07-16 22:07 ` Kalra, Ashish
2025-07-17 5:38 ` Sairaj Kodilkar
2025-07-17 6:05 ` Vasant Hegde
2025-07-17 6:51 ` Kalra, Ashish
2025-07-15 19:27 ` [PATCH v3 3/4] crypto: ccp: Skip SNP INIT for kdump boot Ashish Kalra
2025-07-16 9:20 ` Vasant Hegde [this message]
2025-07-16 22:03 ` Kalra, Ashish
2025-07-17 5:56 ` Vasant Hegde
2025-07-15 19:27 ` [PATCH v3 4/4] iommu/amd: Fix host kdump support for SNP Ashish Kalra
2025-07-16 9:46 ` Vasant Hegde
2025-07-16 22:12 ` Kalra, Ashish
2025-07-17 6:22 ` Vasant Hegde
2025-07-17 6:55 ` Kalra, Ashish
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