From: Lu Baolu <baolu.lu@linux.intel.com>
To: David Woodhouse <dwmw2@infradead.org>,
Joerg Roedel <joro@8bytes.org>,
Bjorn Helgaas <bhelgaas@google.com>,
Christoph Hellwig <hch@lst.de>
Cc: Juergen Gross <jgross@suse.com>,
kevin.tian@intel.com, Stefano Stabellini <sstabellini@kernel.org>,
ashok.raj@intel.com,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
alan.cox@intel.com, Jonathan Corbet <corbet@lwn.net>,
Robin Murphy <robin.murphy@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
pengfei.xu@intel.com, Ingo Molnar <mingo@redhat.com>,
jacob.jun.pan@intel.com,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
mika.westerberg@linux.intel.com
Subject: [PATCH v6 2/8] PCI: Add dev_is_untrusted helper
Date: Tue, 30 Jul 2019 12:52:23 +0800 [thread overview]
Message-ID: <20190730045229.3826-3-baolu.lu@linux.intel.com> (raw)
In-Reply-To: <20190730045229.3826-1-baolu.lu@linux.intel.com>
There are several places in the kernel where it is necessary to
check whether a device is a pci untrusted device. Add a helper
to simplify the callers.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
include/linux/pci.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 9e700d9f9f28..960352a75a10 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1029,6 +1029,7 @@ void pcibios_setup_bridge(struct pci_bus *bus, unsigned long type);
void pci_sort_breadthfirst(void);
#define dev_is_pci(d) ((d)->bus == &pci_bus_type)
#define dev_is_pf(d) ((dev_is_pci(d) ? to_pci_dev(d)->is_physfn : false))
+#define dev_is_untrusted(d) ((dev_is_pci(d) ? to_pci_dev(d)->untrusted : false))
/* Generic PCI functions exported to card drivers */
@@ -1766,6 +1767,7 @@ static inline struct pci_dev *pci_dev_get(struct pci_dev *dev) { return NULL; }
#define dev_is_pci(d) (false)
#define dev_is_pf(d) (false)
+#define dev_is_untrusted(d) (false)
static inline bool pci_acs_enabled(struct pci_dev *pdev, u16 acs_flags)
{ return false; }
static inline int pci_irqd_intx_xlate(struct irq_domain *d,
--
2.17.1
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next prev parent reply other threads:[~2019-07-30 4:58 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-30 4:52 [PATCH v6 0/8] iommu: Bounce page for untrusted devices Lu Baolu
2019-07-30 4:52 ` [PATCH v6 1/8] iommu/vt-d: Don't switch off swiotlb if use direct dma Lu Baolu
2019-07-30 4:52 ` Lu Baolu [this message]
2019-07-30 4:52 ` [PATCH v6 3/8] swiotlb: Split size parameter to map/unmap APIs Lu Baolu
2019-07-30 4:52 ` [PATCH v6 4/8] swiotlb: Zero out bounce buffer for untrusted device Lu Baolu
2019-07-30 4:52 ` [PATCH v6 5/8] iommu: Add bounce page APIs Lu Baolu
2019-08-14 8:38 ` Joerg Roedel
2019-08-15 6:15 ` Lu Baolu
2019-08-15 15:48 ` Joerg Roedel
2019-08-16 2:45 ` Lu Baolu
2019-08-16 4:46 ` Christoph Hellwig
2019-08-18 3:07 ` Lu Baolu
2019-07-30 4:52 ` [PATCH v6 6/8] iommu/vt-d: Check whether device requires bounce buffer Lu Baolu
2019-07-30 4:52 ` [PATCH v6 7/8] iommu/vt-d: Add trace events for device dma map/unmap Lu Baolu
2019-07-30 4:52 ` [PATCH v6 8/8] iommu/vt-d: Use bounce buffer for untrusted devices Lu Baolu
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