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exec: Introduce qemu_maxrampagesize() and rename qemu_getrampagesize()

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Rename qemu_getrampagesize() to qemu_minrampagesize(). While at it,
properly rename find_max_supported_pagesize() to
find_min_backend_pagesize().

s390x is actually interested into the maximum ram pagesize, so
introduce and use qemu_maxrampagesize().

Add a TODO, indicating that looking at any mapped memory backends is not
100% correct in some cases.

Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190417113143.5551-3-david@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
David Hildenbrand 2019-04-17 13:31:43 +02:00 • committed by Cornelia Huck
parent 9138977b18
commit 905b7ee4d6
6 changed files with 47 additions and 10 deletions
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2
hw/vfio/spapr.c
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@ -148,7 +148,7 @@ int vfio_spapr_create_window(VFIOContainer *container,
uint64_t pagesize = memory_region_iommu_get_min_page_size(iommu_mr);
unsigned entries, bits_total, bits_per_level, max_levels;
struct vfio_iommu_spapr_tce_create create = { .argsz = sizeof(create) };
long rampagesize = qemu_getrampagesize();
long rampagesize = qemu_minrampagesize();
/*
* The host might not support the guest supported IOMMU page size,