From: Jason Gunthorpe <jgg@nvidia.com> To: Lu Baolu <baolu.lu@linux.intel.com> Cc: Joerg Roedel <joro@8bytes.org>, Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>, Dave Hansen <dave.hansen@linux.intel.com>, Paolo Bonzini <pbonzini@redhat.com>, David Airlie <airlied@linux.ie>, Jani Nikula <jani.nikula@linux.intel.com>, Joonas Lahtinen <joonas.lahtinen@linux.intel.com>, Rodrigo Vivi <rodrigo.vivi@intel.com>, Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>, Daniel Vetter <daniel@ffwll.ch>, Kevin Tian <kevin.tian@intel.com>, Ashok Raj <ashok.raj@intel.com>, Liu Yi L <yi.l.liu@intel.com>, Jacob Pan <jacob.jun.pan@linux.intel.com>, Ning Sun <ning.sun@intel.com>, Will Deacon <will@kernel.org>, Robin Murphy <robin.murphy@arm.com>, Christoph Hellwig <hch@lst.de>, Steve Wahl <steve.wahl@hpe.com>, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 6/7] x86/boot/tboot: Move tboot_force_iommu() to Intel IOMMU Date: Mon, 16 May 2022 15:06:28 -0300 [thread overview] Message-ID: <20220516180628.GL1343366@nvidia.com> (raw) In-Reply-To: <20220514014322.2927339-7-baolu.lu@linux.intel.com> On Sat, May 14, 2022 at 09:43:21AM +0800, Lu Baolu wrote: > tboot_force_iommu() is only called by the Intel IOMMU driver. Move the > helper into that driver. No functional change intended. > > Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> > --- > include/linux/tboot.h | 2 -- > arch/x86/kernel/tboot.c | 15 --------------- > drivers/iommu/intel/iommu.c | 14 ++++++++++++++ > 3 files changed, 14 insertions(+), 17 deletions(-) Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> > +static __init int tboot_force_iommu(void) > +{ > + if (!tboot_enabled()) > + return 0; > + > + if (no_iommu || dmar_disabled) > + pr_warn("Forcing Intel-IOMMU to enabled\n"); Unrelated, but when we are in the special secure IOMMU modes, do we force ATS off? Specifically does the IOMMU reject TLPs that are marked as translated? Jason
WARNING: multiple messages have this Message-ID (diff)
From: Jason Gunthorpe via iommu <iommu@lists.linux-foundation.org> To: Lu Baolu <baolu.lu@linux.intel.com> Cc: Steve Wahl <steve.wahl@hpe.com>, David Airlie <airlied@linux.ie>, Joonas Lahtinen <joonas.lahtinen@linux.intel.com>, Paolo Bonzini <pbonzini@redhat.com>, Will Deacon <will@kernel.org>, Christoph Hellwig <hch@lst.de>, Ashok Raj <ashok.raj@intel.com>, Ingo Molnar <mingo@redhat.com>, Kevin Tian <kevin.tian@intel.com>, Jani Nikula <jani.nikula@linux.intel.com>, Ning Sun <ning.sun@intel.com>, Dave Hansen <dave.hansen@linux.intel.com>, Rodrigo Vivi <rodrigo.vivi@intel.com>, Thomas Gleixner <tglx@linutronix.de>, Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, Daniel Vetter <daniel@ffwll.ch>, Borislav Petkov <bp@alien8.de>, Robin Murphy <robin.murphy@arm.com> Subject: Re: [PATCH 6/7] x86/boot/tboot: Move tboot_force_iommu() to Intel IOMMU Date: Mon, 16 May 2022 15:06:28 -0300 [thread overview] Message-ID: <20220516180628.GL1343366@nvidia.com> (raw) In-Reply-To: <20220514014322.2927339-7-baolu.lu@linux.intel.com> On Sat, May 14, 2022 at 09:43:21AM +0800, Lu Baolu wrote: > tboot_force_iommu() is only called by the Intel IOMMU driver. Move the > helper into that driver. No functional change intended. > > Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> > --- > include/linux/tboot.h | 2 -- > arch/x86/kernel/tboot.c | 15 --------------- > drivers/iommu/intel/iommu.c | 14 ++++++++++++++ > 3 files changed, 14 insertions(+), 17 deletions(-) Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> > +static __init int tboot_force_iommu(void) > +{ > + if (!tboot_enabled()) > + return 0; > + > + if (no_iommu || dmar_disabled) > + pr_warn("Forcing Intel-IOMMU to enabled\n"); Unrelated, but when we are in the special secure IOMMU modes, do we force ATS off? Specifically does the IOMMU reject TLPs that are marked as translated? Jason _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
next prev parent reply other threads:[~2022-05-16 18:06 UTC|newest] Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-05-14 1:43 [PATCH 0/7] iommu/vt-d: Make intel-iommu.h private Lu Baolu 2022-05-14 1:43 ` Lu Baolu 2022-05-14 1:43 ` [PATCH 1/7] iommu/vt-d: Move trace/events/intel_iommu.h under iommu Lu Baolu 2022-05-14 1:43 ` Lu Baolu 2022-05-16 18:04 ` Jason Gunthorpe 2022-05-16 18:04 ` Jason Gunthorpe via iommu 2022-05-14 1:43 ` [PATCH 2/7] agp/intel: Use per device iommu check Lu Baolu 2022-05-14 1:43 ` Lu Baolu 2022-05-16 18:04 ` Jason Gunthorpe 2022-05-16 18:04 ` Jason Gunthorpe via iommu 2022-05-14 1:43 ` [PATCH 3/7] iommu/vt-d: Remove unnecessary exported symbol Lu Baolu 2022-05-14 1:43 ` Lu Baolu 2022-05-16 18:04 ` Jason Gunthorpe 2022-05-16 18:04 ` Jason Gunthorpe via iommu 2022-05-14 1:43 ` [PATCH 4/7] drm/i915: Remove unnecessary include Lu Baolu 2022-05-14 1:43 ` Lu Baolu 2022-05-16 7:28 ` Jani Nikula 2022-05-16 7:28 ` Jani Nikula 2022-05-16 18:04 ` Jason Gunthorpe 2022-05-16 18:04 ` Jason Gunthorpe via iommu 2022-05-14 1:43 ` [PATCH 5/7] KVM: x86: " Lu Baolu 2022-05-14 1:43 ` Lu Baolu 2022-05-16 18:05 ` Jason Gunthorpe 2022-05-16 18:05 ` Jason Gunthorpe via iommu 2022-05-14 1:43 ` [PATCH 6/7] x86/boot/tboot: Move tboot_force_iommu() to Intel IOMMU Lu Baolu 2022-05-14 1:43 ` Lu Baolu 2022-05-16 18:06 ` Jason Gunthorpe [this message] 2022-05-16 18:06 ` Jason Gunthorpe via iommu 2022-05-16 22:58 ` Jacob Pan 2022-05-16 22:58 ` Jacob Pan 2022-05-17 2:05 ` Baolu Lu 2022-05-17 2:05 ` Baolu Lu 2022-05-17 11:13 ` Jason Gunthorpe 2022-05-17 11:13 ` Jason Gunthorpe via iommu 2022-05-18 7:38 ` Baolu Lu 2022-05-18 7:38 ` Baolu Lu 2022-05-14 1:43 ` [PATCH 7/7] iommu/vt-d: Move include/linux/intel_iommu.h under iommu Lu Baolu 2022-05-14 1:43 ` Lu Baolu 2022-05-16 18:06 ` Jason Gunthorpe 2022-05-16 18:06 ` Jason Gunthorpe via iommu 2022-05-16 5:54 ` [PATCH 0/7] iommu/vt-d: Make intel-iommu.h private Christoph Hellwig 2022-05-16 5:54 ` Christoph Hellwig 2022-05-18 18:41 ` Steve Wahl 2022-05-18 18:41 ` Steve Wahl
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