On Thu, Feb 14, 2019 at 04:21:42PM +1100, Alexey Kardashevskiy wrote:
> The "systempagesize" name suggests that it is the host system page size
> while it is the smallest page size of memory backing the guest RAM so
> let's rename it to stop confusion. This should cause no behavioral change.
>
> Signed-off-by: Alexey Kardashevskiy <a...@ozlabs.ru>
> ---
> hw/vfio/spapr.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/hw/vfio/spapr.c b/hw/vfio/spapr.c
> index 302d6b0..1498fee 100644
> --- a/hw/vfio/spapr.c
> +++ b/hw/vfio/spapr.c
> @@ -148,14 +148,14 @@ 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 systempagesize = qemu_getrampagesize();
> + long minpagesize = qemu_getrampagesize();
I'd prefer "rampagesize" or "minrampagesize" here. "minpagesize"
doesn't make it clear what it's the minimum of, whereas rampagesize at
least makes it clear it's the same thing that qemu_getrampagesize() is
working with.
> /*
> * The host might not support the guest supported IOMMU page size,
> * so we will use smaller physical IOMMU pages to back them.
> */
> - if (pagesize > systempagesize) {
> - pagesize = systempagesize;
> + if (pagesize > minpagesize) {
> + pagesize = minpagesize;
> }
> pagesize = 1ULL << (63 - clz64(container->pgsizes &
> (pagesize | (pagesize - 1))));
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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