From: Baolu Lu <baolu.lu@linux.intel.com>
To: Dmytro Maluka <dmaluka@chromium.org>
Cc: iommu@lists.linux.dev, David Woodhouse <dwmw2@infradead.org>,
"Vineeth Pillai (Google)" <vineeth@bitbyteword.org>,
Aashish Sharma <aashish@aashishsharma.net>,
Grzegorz Jaszczyk <jaszczyk@chromium.org>,
Chuanxiao Dong <chuanxiao.dong@intel.com>,
Kevin Tian <kevin.tian@intel.com>
Subject: Re: [Intel IOMMU] Question about memory ordering in context/PASID entry updates
Date: Sun, 7 Dec 2025 11:35:02 +0800 [thread overview]
Message-ID: <ccd63624-81b3-49d7-ad42-4cecd23258f4@linux.intel.com> (raw)
In-Reply-To: <aTLntWFSADz81_NF@google.com>
On 12/5/25 22:09, Dmytro Maluka wrote:
>> as users can change a device's
>> default domain in VT-d legacy mode.
> Not in scalable mode? I'd assume users can change it in both, and I
> don't immediately see anything in the code that would limit it to legacy
> mode only.
In the scalable mode case, the context entry is not altered when
changing the default domain. But, yes, users can trigger context entry
changes in other cases. So this applies to both modes.
Thanks,
baolu
prev parent reply other threads:[~2025-12-07 3:39 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-04 16:49 [Intel IOMMU] Question about memory ordering in context/PASID entry updates Dmytro Maluka
2025-12-05 5:32 ` Baolu Lu
2025-12-05 14:09 ` Dmytro Maluka
2025-12-07 3:35 ` Baolu Lu [this message]
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