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From 4adaef467772d0131b96e6dc2533b13afd8254a9 Mon Sep 17 00:00:00 2001
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From: Alex Williamson <alex.williamson@redhat.com>
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Date: Fri, 29 Sep 2017 21:44:01 +0200
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Subject: [PATCH 01/27] vfio: pass device to vfio_mmap_bar and use it to set
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owner
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RH-Author: Alex Williamson <alex.williamson@redhat.com>
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Message-id: <20170929214401.16765.56856.stgit@gimli.home>
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Patchwork-id: 76759
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O-Subject: [RHEL-7.5 qemu-kvm PATCH 01/16] vfio: pass device to vfio_mmap_bar and use it to set owner
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Bugzilla: 1494181
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RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
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RH-Acked-by: Auger Eric <eric.auger@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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From: Paolo Bonzini <pbonzini@redhat.com>
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Upstream: 5cb022a1bfaa0c15a13d3266bc6d683cc1f44d7f
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RHEL: Update vfio_mmap_bar() parameters, but RHEL memory API doesn't
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support an owner, this makes later patches apply more cleanly.
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Cc: Alex Williamson <alex.williamson@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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hw/misc/vfio.c | 7 ++++---
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1 file changed, 4 insertions(+), 3 deletions(-)
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diff --git a/hw/misc/vfio.c b/hw/misc/vfio.c
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index 4fdc09a..363c646 100644
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--- a/hw/misc/vfio.c
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+++ b/hw/misc/vfio.c
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@@ -2570,7 +2570,8 @@ static void vfio_unmap_bar(VFIODevice *vdev, int nr)
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memory_region_destroy(&bar->mem);
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}
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-static int vfio_mmap_bar(VFIOBAR *bar, MemoryRegion *mem, MemoryRegion *submem,
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+static int vfio_mmap_bar(VFIODevice *vdev, VFIOBAR *bar,
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+ MemoryRegion *mem, MemoryRegion *submem,
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void **map, size_t size, off_t offset,
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const char *name)
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{
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@@ -2654,7 +2655,7 @@ static void vfio_map_bar(VFIODevice *vdev, int nr)
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}
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strncat(name, " mmap", sizeof(name) - strlen(name) - 1);
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- if (vfio_mmap_bar(bar, &bar->mem,
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+ if (vfio_mmap_bar(vdev, bar, &bar->mem,
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&bar->mmap_mem, &bar->mmap, size, 0, name)) {
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error_report("%s unsupported. Performance may be slow", name);
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}
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@@ -2668,7 +2669,7 @@ static void vfio_map_bar(VFIODevice *vdev, int nr)
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size = start < bar->size ? bar->size - start : 0;
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strncat(name, " msix-hi", sizeof(name) - strlen(name) - 1);
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/* VFIOMSIXInfo contains another MemoryRegion for this mapping */
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- if (vfio_mmap_bar(bar, &bar->mem, &vdev->msix->mmap_mem,
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+ if (vfio_mmap_bar(vdev, bar, &bar->mem, &vdev->msix->mmap_mem,
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&vdev->msix->mmap, size, start, name)) {
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error_report("%s unsupported. Performance may be slow", name);
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}
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--
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1.8.3.1
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