Messages in this thread | | | Subject | Re: [PATCH v2] nitro_enclaves: Set Bus Master for the NE PCI device | From | "Paraschiv, Andra-Irina" <> | Date | Mon, 21 Jun 2021 17:35:32 +0300 |
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On 21/06/2021 03:40, Longpeng(Mike) wrote: > Enable Bus Master for the NE PCI device, according to the PCI spec > for submitting memory or I/O requests: > > Master Enable – Controls the ability of a PCI Express > Endpoint to issue Memory and I/O Read/Write Requests, and > the ability of a Root or Switch Port to forward Memory and > I/O Read/Write Requests in the Upstream direction > > Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> > Cc: Andra Paraschiv <andraprs@amazon.com> > Cc: Alexandru Vasile <lexnv@amazon.com> > Cc: Alexandru Ciobotaru <alcioa@amazon.com> > Signed-off-by: Longpeng(Mike) <longpeng2@huawei.com> > --- > Changes since v1: > - update the commit message. [Andra] > --- > drivers/virt/nitro_enclaves/ne_pci_dev.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/virt/nitro_enclaves/ne_pci_dev.c b/drivers/virt/nitro_enclaves/ne_pci_dev.c > index b9c1de4..143207e 100644 > --- a/drivers/virt/nitro_enclaves/ne_pci_dev.c > +++ b/drivers/virt/nitro_enclaves/ne_pci_dev.c > @@ -480,6 +480,8 @@ static int ne_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) > goto free_ne_pci_dev; > } > > + pci_set_master(pdev); > + > rc = pci_request_regions_exclusive(pdev, "nitro_enclaves"); > if (rc < 0) { > dev_err(&pdev->dev, "Error in pci request regions [rc=%d]\n", rc); > -- > 1.8.3.1 >
Reviewed-by: Andra Paraschiv <andraprs@amazon.com>
Thank you.
Andra
Amazon Development Center (Romania) S.R.L. registered office: 27A Sf. Lazar Street, UBC5, floor 2, Iasi, Iasi County, 700045, Romania. Registered in Romania. Registration number J22/2621/2005.
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