From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eduard - Gabriel Munteanu Subject: [PATCH 2/4] pci: add foreachcap() helper Date: Sat, 28 Aug 2010 18:02:56 +0300 Message-ID: <1283007778-11012-2-git-send-email-eduard.munteanu@linux360.ro> References: <1283007778-11012-1-git-send-email-eduard.munteanu@linux360.ro> Cc: mst@redhat.com, kevin@koconnor.net, joro@8bytes.org, blauwirbel@gmail.com, paul@codesourcery.com, avi@redhat.com, anthony@codemonkey.ws, av1474@comtv.ru, yamahata@valinux.co.jp, kvm@vger.kernel.org, qemu-devel@nongnu.org, Eduard - Gabriel Munteanu To: seabios@seabios.org Return-path: Received: from mail-bw0-f46.google.com ([209.85.214.46]:34314 "EHLO mail-bw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751812Ab0H1PEn (ORCPT ); Sat, 28 Aug 2010 11:04:43 -0400 Received: by bwz11 with SMTP id 11so2655339bwz.19 for ; Sat, 28 Aug 2010 08:04:42 -0700 (PDT) In-Reply-To: <1283007778-11012-1-git-send-email-eduard.munteanu@linux360.ro> Sender: kvm-owner@vger.kernel.org List-ID: This iterates over capabilities exposed by PCI devices. It's needed by IOMMU initialization code to discover the Secure Device capability. Signed-off-by: Eduard - Gabriel Munteanu --- src/pci.h | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/src/pci.h b/src/pci.h index 9c3108c..60e0359 100644 --- a/src/pci.h +++ b/src/pci.h @@ -2,6 +2,7 @@ #define __PCI_H #include "types.h" // u32 +#include "pci_regs.h" // PCI_CAPABILITY_LIST et al. static inline u8 pci_bdf_to_bus(u16 bdf) { return bdf >> 8; @@ -52,6 +53,10 @@ int pci_next(int bdf, int *pmax); for (MAX=0x0100, BDF=pci_next(0, &MAX) \ ; BDF >= 0 \ ; BDF=pci_next(BDF+1, &MAX)) +#define foreachcap(BDF, PTR, CAP) \ + for (PTR = PCI_CAPABILITY_LIST, CAP = pci_config_readb(BDF, PTR); \ + CAP; \ + PTR = CAP + PCI_CAP_LIST_NEXT, CAP = pci_config_readb(BDF, PTR)) #define foreachpci_in_bus(BDF, MAX, BUS) \ for (MAX = pci_bus_devfn_to_bdf(BUS, 0) + 0x0100, \ -- 1.7.1