From: "Marek Marczykowski-Górecki" <marmarek@invisiblethingslab.com>
To: Teddy Astie <teddy.astie@vates.tech>
Cc: xen-devel@lists.xenproject.org,
"Andrew Cooper" <andrew.cooper3@citrix.com>,
"Jan Beulich" <jbeulich@suse.com>,
"Julien Grall" <julien@xen.org>,
"Stefano Stabellini" <sstabellini@kernel.org>,
"Roger Pau Monné" <roger.pau@citrix.com>,
"Lukasz Hawrylko" <lukasz@hawrylko.pl>,
"Daniel P. Smith" <dpsmith@apertussolutions.com>,
"Mateusz Mówka" <mateusz.mowka@intel.com>
Subject: Re: [XEN RFC PATCH v4 0/5] IOMMU subsystem redesign and PV-IOMMU interface
Date: Tue, 5 Nov 2024 02:10:11 +0100 [thread overview]
Message-ID: <ZylwdZjIeQ9qRdc_@mail-itl> (raw)
In-Reply-To: <cover.1730718102.git.teddy.astie@vates.tech>
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On Mon, Nov 04, 2024 at 02:28:38PM +0000, Teddy Astie wrote:
> * introduce "dom0-iommu=no-dma" to make default context block all DMA
> (disables HAP and sync-pt), enforcing usage of PV-IOMMU for DMA
> Can be used to expose properly "Pre-boot DMA protection"
This sounds like it disables HAP completely, but actually it looks like
disabling sharing HAP page tables with IOMMU ones, right? That (HAP
sharing) is relevant for PVH dom0 only, correct?
--
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
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next prev parent reply other threads:[~2024-11-05 1:10 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-04 14:28 [XEN RFC PATCH v4 0/5] IOMMU subsystem redesign and PV-IOMMU interface Teddy Astie
2024-11-04 14:28 ` [XEN RFC PATCH v4 2/5] docs/designs: Add a design document for IOMMU subsystem redesign Teddy Astie
2024-11-06 15:02 ` Alejandro Vallejo
2024-11-04 14:28 ` [XEN RFC PATCH v4 1/5] docs/designs: Add a design document for PV-IOMMU Teddy Astie
2024-11-04 14:28 ` [XEN RFC PATCH v4 5/5] xen/public: Introduce PV-IOMMU hypercall interface Teddy Astie
2024-11-06 12:05 ` Alejandro Vallejo
2024-11-04 14:28 ` [XEN RFC PATCH v4 4/5] VT-d: Port IOMMU driver to new subsystem Teddy Astie
2024-11-04 14:28 ` [XEN RFC PATCH v4 3/5] IOMMU: Introduce redesigned IOMMU subsystem Teddy Astie
2024-11-05 1:10 ` Marek Marczykowski-Górecki [this message]
2024-11-05 10:40 ` [XEN RFC PATCH v4 0/5] IOMMU subsystem redesign and PV-IOMMU interface Teddy Astie
2025-01-09 3:13 ` Marek Marczykowski-Górecki
2025-01-09 11:39 ` Teddy Astie
2025-01-09 11:50 ` Jan Beulich
2025-01-09 12:08 ` Marek Marczykowski-Górecki
2025-01-09 12:41 ` Teddy Astie
2025-01-09 13:00 ` Marek Marczykowski-Górecki
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