From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:47652) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aeN18-00029z-Nr for qemu-devel@nongnu.org; Fri, 11 Mar 2016 08:22:11 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aeN16-0006u6-1n for qemu-devel@nongnu.org; Fri, 11 Mar 2016 08:22:10 -0500 Received: from mx1.redhat.com ([209.132.183.28]:39080) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aeN15-0006u1-SY for qemu-devel@nongnu.org; Fri, 11 Mar 2016 08:22:07 -0500 Date: Fri, 11 Mar 2016 15:22:03 +0200 From: "Michael S. Tsirkin" Message-ID: <20160311152043-mutt-send-email-mst@redhat.com> References: <1456078260-6669-1-git-send-email-davidkiarie4@gmail.com> <1456078260-6669-5-git-send-email-davidkiarie4@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1456078260-6669-5-git-send-email-davidkiarie4@gmail.com> Subject: Re: [Qemu-devel] [V6 4/4] hw/pci-host: Emulate AMD IOMMU List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: David Kiarie Cc: marcel@redhat.com, valentine.sinitsyn@gmail.com, jan.kiszka@web.de, qemu-devel@nongnu.org On Sun, Feb 21, 2016 at 09:11:00PM +0300, David Kiarie wrote: > Add AMD IOMMU emulation support to q35 chipset > > Signed-off-by: David Kiarie > --- > hw/pci-host/piix.c | 1 + > hw/pci-host/q35.c | 14 ++++++++++++-- > include/hw/i386/intel_iommu.h | 1 + > 3 files changed, 14 insertions(+), 2 deletions(-) > > diff --git a/hw/pci-host/piix.c b/hw/pci-host/piix.c > index 41aa66f..ab2e24a 100644 > --- a/hw/pci-host/piix.c > +++ b/hw/pci-host/piix.c > @@ -36,6 +36,7 @@ > #include "hw/i386/ioapic.h" > #include "qapi/visitor.h" > #include "qemu/error-report.h" > +#include "hw/i386/amd_iommu.h" > > /* > * I440FX chipset data sheet. Why is this needed? > diff --git a/hw/pci-host/q35.c b/hw/pci-host/q35.c > index 115fb8c..355fb32 100644 > --- a/hw/pci-host/q35.c > +++ b/hw/pci-host/q35.c > @@ -31,6 +31,7 @@ > #include "hw/hw.h" > #include "hw/pci-host/q35.h" > #include "qapi/visitor.h" > +#include "hw/i386/amd_iommu.h" > > /**************************************************************************** > * Q35 host > @@ -505,9 +506,18 @@ static void mch_realize(PCIDevice *d, Error **errp) > mch->pci_address_space, &mch->pam_regions[i+1], > PAM_EXPAN_BASE + i * PAM_EXPAN_SIZE, PAM_EXPAN_SIZE); > } > - /* Intel IOMMU (VT-d) */ > - if (object_property_get_bool(qdev_get_machine(), "iommu", NULL)) { > + > + if (g_strcmp0(MACHINE(qdev_get_machine())->iommu, INTEL_IOMMU_STR) == 0) { > + /* Intel IOMMU (VT-d) */ > mch_init_dmar(mch); > + } else if (g_strcmp0(MACHINE(qdev_get_machine())->iommu, AMD_IOMMU_STR) > + == 0) { > + AMDIOMMUState *iommu_state; > + PCIDevice *iommu; > + PCIBus *bus = PCI_BUS(qdev_get_parent_bus(DEVICE(mch))); > + iommu = pci_create_simple(bus, 0x20, TYPE_AMD_IOMMU_DEVICE); address can be set through a property. > + iommu_state = AMD_IOMMU_DEVICE(iommu); > + pci_setup_iommu(bus, bridge_host_amd_iommu, iommu_state); It would be better to move this chunk to a separate function. > } > } > > diff --git a/include/hw/i386/intel_iommu.h b/include/hw/i386/intel_iommu.h > index b024ffa..539530c 100644 > --- a/include/hw/i386/intel_iommu.h > +++ b/include/hw/i386/intel_iommu.h > @@ -27,6 +27,7 @@ > #define TYPE_INTEL_IOMMU_DEVICE "intel-iommu" > #define INTEL_IOMMU_DEVICE(obj) \ > OBJECT_CHECK(IntelIOMMUState, (obj), TYPE_INTEL_IOMMU_DEVICE) > +#define INTEL_IOMMU_STR "intel" > > /* DMAR Hardware Unit Definition address (IOMMU unit) */ > #define Q35_HOST_BRIDGE_IOMMU_ADDR 0xfed90000ULL > -- > 2.1.4