From: "Longpeng(Mike)" <longpeng2@huawei.com>
To: <andraprs@amazon.com>, <lexnv@amazon.com>, <alcioa@amazon.com>
Cc: <longpeng2@huawei.com>, <arei.gonglei@huawei.com>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH] nitro_enclaves: set master in the procedure of NE probe
Date: Tue, 19 Jan 2021 11:30:59 +0800 [thread overview]
Message-ID: <20210119033059.1467-1-longpeng2@huawei.com> (raw)
According the PCI spec:
Bus 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
Set BusMaster to make the driver to be PCI conformant.
Signed-off-by: Longpeng(Mike) <longpeng2@huawei.com>
---
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
next reply other threads:[~2021-01-19 3:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-19 3:30 Longpeng(Mike) [this message]
2021-01-20 10:27 ` Paraschiv, Andra-Irina
2021-01-25 3:45 ` Longpeng (Mike, Cloud Infrastructure Service Product Dept.)
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