From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Xu Subject: [PATCH kvm-unit-tests v2 11/17] pci: provide pci_enable_defaults() Date: Wed, 9 Nov 2016 10:10:18 -0500 Message-ID: <1478704224-20472-12-git-send-email-peterx@redhat.com> References: <1478704224-20472-1-git-send-email-peterx@redhat.com> Cc: drjones@redhat.com, rkrcmar@redhat.com, peterx@redhat.com, agordeev@redhat.com, jan.kiszka@web.de, pbonzini@redhat.com To: kvm@vger.kernel.org Return-path: Received: from mx1.redhat.com ([209.132.183.28]:43906 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933936AbcKIPKr (ORCPT ); Wed, 9 Nov 2016 10:10:47 -0500 In-Reply-To: <1478704224-20472-1-git-send-email-peterx@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Provide a function to do most of the common PCI init work. Suggested-by: Andrew Jones Signed-off-by: Peter Xu --- lib/pci.c | 8 ++++++++ lib/pci.h | 1 + 2 files changed, 9 insertions(+) diff --git a/lib/pci.c b/lib/pci.c index fd17ea5..971f02e 100644 --- a/lib/pci.c +++ b/lib/pci.c @@ -249,3 +249,11 @@ void pci_scan_bars(struct pci_dev *dev) dev->bar[i] = pci_bar_get_addr(dev, i); } } + +int pci_enable_defaults(struct pci_dev *dev) +{ + pci_scan_bars(dev); + /* Enable device DMA operations */ + pci_cmd_set_clr(dev, PCI_COMMAND_MASTER, 0); + return 0; +} diff --git a/lib/pci.h b/lib/pci.h index de15086..63f8a0a 100644 --- a/lib/pci.h +++ b/lib/pci.h @@ -26,6 +26,7 @@ struct pci_dev { void pci_dev_init(struct pci_dev *dev, pcidevaddr_t bdf); void pci_scan_bars(struct pci_dev *dev); void pci_cmd_set_clr(struct pci_dev *dev, uint16_t set, uint16_t clr); +int pci_enable_defaults(struct pci_dev *dev); extern bool pci_probe(void); extern void pci_print(void); -- 2.7.4