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92 lines
3.2 KiB
92 lines
3.2 KiB
9 months ago
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From ff0c13c22878eed0f3879c0805bef5b9f9d83e04 Mon Sep 17 00:00:00 2001
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From: Zhenzhong Duan <zhenzhong.duan@intel.com>
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Date: Thu, 2 Nov 2023 15:12:42 +0800
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Subject: [PATCH 017/101] vfio/spapr: Introduce spapr backend and target
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interface
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Eric Auger <eric.auger@redhat.com>
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RH-MergeRequest: 211: IOMMUFD backend backport
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RH-Jira: RHEL-19302 RHEL-21057
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RH-Acked-by: Cédric Le Goater <clg@redhat.com>
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RH-Acked-by: Sebastian Ott <sebott@redhat.com>
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RH-Commit: [16/67] e35cda157a2a1afeded3305622c861abd07edb51 (eauger1/centos-qemu-kvm)
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Introduce an empty spapr backend which will hold spapr specific
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content, currently only prereg_listener and hostwin_list.
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Also introduce two spapr specific callbacks add/del_window into
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VFIOIOMMUOps. Instantiate a spapr ops with a helper setup_spapr_ops
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and assign it to bcontainer->ops.
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Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
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Reviewed-by: Cédric Le Goater <clg@redhat.com>
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Signed-off-by: Cédric Le Goater <clg@redhat.com>
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(cherry picked from commit 9b7d38bf5a2c1054bfe6de08806954cdc45d8d98)
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Signed-off-by: Eric Auger <eric.auger@redhat.com>
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---
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hw/vfio/spapr.c | 14 ++++++++++++++
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include/hw/vfio/vfio-container-base.h | 6 ++++++
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2 files changed, 20 insertions(+)
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diff --git a/hw/vfio/spapr.c b/hw/vfio/spapr.c
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index 7a50975f25..e1a6b35563 100644
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--- a/hw/vfio/spapr.c
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+++ b/hw/vfio/spapr.c
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@@ -24,6 +24,10 @@
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#include "qapi/error.h"
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#include "trace.h"
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+typedef struct VFIOSpaprContainer {
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+ VFIOContainer container;
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+} VFIOSpaprContainer;
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+
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static bool vfio_prereg_listener_skipped_section(MemoryRegionSection *section)
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{
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if (memory_region_is_iommu(section->mr)) {
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@@ -421,6 +425,14 @@ void vfio_container_del_section_window(VFIOContainer *container,
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}
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}
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+static VFIOIOMMUOps vfio_iommu_spapr_ops;
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+
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+static void setup_spapr_ops(VFIOContainerBase *bcontainer)
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+{
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+ vfio_iommu_spapr_ops = *bcontainer->ops;
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+ bcontainer->ops = &vfio_iommu_spapr_ops;
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+}
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+
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int vfio_spapr_container_init(VFIOContainer *container, Error **errp)
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{
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VFIOContainerBase *bcontainer = &container->bcontainer;
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@@ -486,6 +498,8 @@ int vfio_spapr_container_init(VFIOContainer *container, Error **errp)
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0x1000);
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}
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+ setup_spapr_ops(bcontainer);
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+
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return 0;
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listener_unregister_exit:
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diff --git a/include/hw/vfio/vfio-container-base.h b/include/hw/vfio/vfio-container-base.h
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index 9658ffb526..f62a14ac73 100644
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--- a/include/hw/vfio/vfio-container-base.h
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+++ b/include/hw/vfio/vfio-container-base.h
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@@ -101,5 +101,11 @@ struct VFIOIOMMUOps {
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int (*set_dirty_page_tracking)(VFIOContainerBase *bcontainer, bool start);
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int (*query_dirty_bitmap)(VFIOContainerBase *bcontainer, VFIOBitmap *vbmap,
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hwaddr iova, hwaddr size);
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+ /* SPAPR specific */
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+ int (*add_window)(VFIOContainerBase *bcontainer,
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+ MemoryRegionSection *section,
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+ Error **errp);
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+ void (*del_window)(VFIOContainerBase *bcontainer,
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+ MemoryRegionSection *section);
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};
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#endif /* HW_VFIO_VFIO_CONTAINER_BASE_H */
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--
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2.39.3
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