From: Sairaj Kodilkar <sarunkod@amd.com>
To: <iommu@lists.linux.dev>, <linux-kernel@vger.kernel.org>
Cc: <joro@8bytes.org>, <suravee.suthikulpanit@amd.com>,
<vasant.hegde@amd.com>, <robin.murphy@arm.com>,
<ashish.kalra@amd.com>, <will@kernel.org>, <jgg@nvidia.com>,
Sairaj Kodilkar <sarunkod@amd.com>
Subject: [PATCH v2 0/2] amd/iommu: Preserve domain ids inside the kdump kernel
Date: Fri, 21 Nov 2025 14:41:14 +0530 [thread overview]
Message-ID: <20251121091116.25663-1-sarunkod@amd.com> (raw)
Patch 1: Reserves the Domain IDs allocated by the host kernel while reusing its
device table inside kdump kernel
Patch 2: Cleanup around pdom allocation
-------------------------------------------------------------------------------
Changes since v1:
https://lore.kernel.org/all/20251114104442.23296-1-sarunkod@amd.com/
P1:
- Use FIELD_GET to read the DTE fields [Ankit]
- Use GFP_KERNEL instead of GFP_ATOMIC [Jason]
- Remove print on ENOMEM [Jason]
P2:
- Use u32 instead of int [Jason]
- pass gfp flags as argument to 'amd_iommu_pdom_id_reserve' [Jason]
-------------------------------------------------------------------------------
Base Commit: 91920a9d87f5192c56ba5bf3e133aeb3576b705d (iommu-next)
-------------------------------------------------------------------------------
Fixes: 38e5f33ee359 ("iommu/amd: Reuse device table for kdump")
Signed-off-by: Sairaj Kodilkar <sarunkod@amd.com>
Sairaj Kodilkar (2):
amd/iommu: Preserve domain ids inside the kdump kernel
amd/iommu: Make protection domain ID functions non-static
drivers/iommu/amd/amd_iommu.h | 5 +++++
drivers/iommu/amd/init.c | 24 +++++++++++++++++++++---
drivers/iommu/amd/iommu.c | 27 ++++++++++++++++++---------
3 files changed, 44 insertions(+), 12 deletions(-)
--
2.34.1
next reply other threads:[~2025-11-21 9:12 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-21 9:11 Sairaj Kodilkar [this message]
2025-11-21 9:11 ` [PATCH v2 1/2] amd/iommu: Preserve domain ids inside the kdump kernel Sairaj Kodilkar
2025-11-24 14:44 ` Jason Gunthorpe
2025-11-25 6:32 ` Sairaj Kodilkar
2025-11-26 8:21 ` Vasant Hegde
2025-11-26 15:20 ` Jason Gunthorpe
2025-12-02 5:21 ` Vasant Hegde
2025-11-21 9:11 ` [PATCH v2 2/2] amd/iommu: Make protection domain ID functions non-static Sairaj Kodilkar
2025-12-02 5:23 ` [PATCH v2 0/2] amd/iommu: Preserve domain ids inside the kdump kernel Vasant Hegde
2025-12-19 10:29 ` Joerg Roedel
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