IOMMU Archive on lore.kernel.org
 help / color / Atom feed
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
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

_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu

  parent reply index

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

Reply instructions:

You may reply publically to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190730045229.3826-3-baolu.lu@linux.intel.com \
    --to=baolu.lu@linux.intel.com \
    --cc=alan.cox@intel.com \
    --cc=ashok.raj@intel.com \
    --cc=bhelgaas@google.com \
    --cc=boris.ostrovsky@oracle.com \
    --cc=corbet@lwn.net \
    --cc=dwmw2@infradead.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=hch@lst.de \
    --cc=iommu@lists.linux-foundation.org \
    --cc=jacob.jun.pan@intel.com \
    --cc=jgross@suse.com \
    --cc=joro@8bytes.org \
    --cc=kevin.tian@intel.com \
    --cc=konrad.wilk@oracle.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mika.westerberg@linux.intel.com \
    --cc=mingo@redhat.com \
    --cc=pengfei.xu@intel.com \
    --cc=robin.murphy@arm.com \
    --cc=rostedt@goodmis.org \
    --cc=sstabellini@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

IOMMU Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-iommu/0 linux-iommu/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-iommu linux-iommu/ https://lore.kernel.org/linux-iommu \
		iommu@lists.linux-foundation.org iommu@archiver.kernel.org
	public-inbox-index linux-iommu


Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.linux-foundation.lists.iommu


AGPL code for this site: git clone https://public-inbox.org/ public-inbox