From: Lu Baolu <baolu.lu@linux.intel.com>
To: iommu@lists.linux.dev
Cc: Joerg Roedel <joro@8bytes.org>, Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Kevin Tian <kevin.tian@intel.com>,
Jacob Pan <jacob.jun.pan@linux.intel.com>,
linux-kernel@vger.kernel.org, Lu Baolu <baolu.lu@linux.intel.com>
Subject: [PATCH 0/2] iommu/vt-d: Add ESRTPS & ESIRTPS check
Date: Mon, 19 Sep 2022 14:25:21 +0800 [thread overview]
Message-ID: <20220919062523.3438951-1-baolu.lu@linux.intel.com> (raw)
Hi folks,
Some VT-d hardware implementations invalidates all DMA remapping
or interrupt remapping hardware translation caches as part of SRTP or
SIRTPS flow. The VT-d spec introduced two capability bits for these
hardware behaviors. This series fine tuned the VT-d driver to avoid
unnecessary global cache validations.
Best regards,
baolu
Lu Baolu (2):
iommu/vt-d: Avoid unnecessary global IRTE cache invalidation
iommu/vt-d: Avoid unnecessary global DMA cache invalidation
drivers/iommu/intel/iommu.h | 2 ++
drivers/iommu/intel/iommu.c | 7 +++++++
drivers/iommu/intel/irq_remapping.c | 3 ++-
3 files changed, 11 insertions(+), 1 deletion(-)
--
2.34.1
next reply other threads:[~2022-09-19 6:31 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-19 6:25 Lu Baolu [this message]
2022-09-19 6:25 ` [PATCH 1/2] iommu/vt-d: Avoid unnecessary global IRTE cache invalidation Lu Baolu
2022-09-19 8:29 ` Jerry Snitselaar
2022-09-20 7:51 ` Tian, Kevin
2022-09-21 6:49 ` Baolu Lu
2022-09-19 6:25 ` [PATCH 2/2] iommu/vt-d: Avoid unnecessary global DMA " Lu Baolu
2022-09-19 8:30 ` Jerry Snitselaar
2022-09-20 7:51 ` Tian, Kevin
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