From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:43637) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bNZdy-0000UK-Py for qemu-devel@nongnu.org; Thu, 14 Jul 2016 01:57:09 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bNZdx-0002tC-RK for qemu-devel@nongnu.org; Thu, 14 Jul 2016 01:57:06 -0400 Received: from mx1.redhat.com ([209.132.183.28]:44077) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bNZdx-0002t8-LS for qemu-devel@nongnu.org; Thu, 14 Jul 2016 01:57:05 -0400 From: Peter Xu Date: Thu, 14 Jul 2016 13:56:14 +0800 Message-Id: <1468475796-7397-6-git-send-email-peterx@redhat.com> In-Reply-To: <1468475796-7397-1-git-send-email-peterx@redhat.com> References: <1468475796-7397-1-git-send-email-peterx@redhat.com> Subject: [Qemu-devel] [PATCH v12 05/27] acpi: enable INTR for DMAR report structure List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: imammedo@redhat.com, rth@twiddle.net, ehabkost@redhat.com, jasowang@redhat.com, marcel@redhat.com, mst@redhat.com, pbonzini@redhat.com, jan.kiszka@web.de, rkrcmar@redhat.com, alex.williamson@redhat.com, wexu@redhat.com, davidkiarie4@gmail.com, peterx@redhat.com In ACPI DMA remapping report structure, enable INTR flag when specified. Signed-off-by: Peter Xu --- hw/i386/acpi-build.c | 14 +++++++++++++- include/hw/i386/intel_iommu.h | 2 ++ 2 files changed, 15 insertions(+), 1 deletion(-) diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 12ecf95..06682f1 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -59,6 +59,7 @@ #include "qapi/qmp/qint.h" #include "qom/qom-qobject.h" +#include "hw/i386/x86-iommu.h" #include "hw/acpi/ipmi.h" @@ -2454,6 +2455,10 @@ build_mcfg_q35(GArray *table_data, BIOSLinker *linker, AcpiMcfgInfo *info) build_header(linker, table_data, (void *)mcfg, sig, len, 1, NULL, NULL); } +/* + * VT-d spec 8.1 DMA Remapping Reporting Structure + * (version Oct. 2014 or later) + */ static void build_dmar_q35(GArray *table_data, BIOSLinker *linker) { @@ -2461,10 +2466,17 @@ build_dmar_q35(GArray *table_data, BIOSLinker *linker) AcpiTableDmar *dmar; AcpiDmarHardwareUnit *drhd; + uint8_t dmar_flags = 0; + X86IOMMUState *iommu = x86_iommu_get_default(); + + assert(iommu); + if (iommu->intr_supported) { + dmar_flags |= 0x1; /* Flags: 0x1: INT_REMAP */ + } dmar = acpi_data_push(table_data, sizeof(*dmar)); dmar->host_address_width = VTD_HOST_ADDRESS_WIDTH - 1; - dmar->flags = 0; /* No intr_remap for now */ + dmar->flags = dmar_flags; /* DMAR Remapping Hardware Unit Definition structure */ drhd = acpi_data_push(table_data, sizeof(*drhd)); diff --git a/include/hw/i386/intel_iommu.h b/include/hw/i386/intel_iommu.h index 0794309..741242e 100644 --- a/include/hw/i386/intel_iommu.h +++ b/include/hw/i386/intel_iommu.h @@ -44,6 +44,8 @@ #define VTD_HOST_ADDRESS_WIDTH 39 #define VTD_HAW_MASK ((1ULL << VTD_HOST_ADDRESS_WIDTH) - 1) +#define DMAR_REPORT_F_INTR (1) + typedef struct VTDContextEntry VTDContextEntry; typedef struct VTDContextCacheEntry VTDContextCacheEntry; typedef struct IntelIOMMUState IntelIOMMUState; -- 2.4.11