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To:     "Liu, Yi L" <yi.l.liu@intel.com>,
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Subject: RE: [PATCH] iommu/vt-d: Enhance capability check for nested parent
 domain allocation
Thread-Topic: [PATCH] iommu/vt-d: Enhance capability check for nested parent
 domain allocation
Thread-Index: AQHaBorb53ixZf3YA0SmpGP4jnQvU7BaHwOQ
Date:   Wed, 25 Oct 2023 07:37:24 +0000
Message-ID: <BN9PR11MB527610737C0F1D6C92A55FFE8CDEA@BN9PR11MB5276.namprd11.prod.outlook.com>
References: <20231024150011.44642-1-yi.l.liu@intel.com>
In-Reply-To: <20231024150011.44642-1-yi.l.liu@intel.com>
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> From: Liu, Yi L <yi.l.liu@intel.com>
> Sent: Tuesday, October 24, 2023 11:00 PM
>=20
> This adds the scalable mode check before allocating the nested parent
> domain
> as checking nested capability is not enough. User may turn off scalable m=
ode
> which also means no nested support even if the hardware supports it.
>=20
> Fixes: c97d1b20d383 ("iommu/vt-d: Add domain_alloc_user op")
> Signed-off-by: Yi Liu <yi.l.liu@intel.com>

Reviewed-by: Kevin Tian <kevin.tian@intel.com>