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author | Wei Yang <richardw.yang@linux.intel.com> | 2019-10-13 10:11:45 +0800 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-10-26 15:38:06 +0200 |
commit | 038adc2f5850e32019bda06c559d0301be436eae (patch) | |
tree | 9eea94c77ab858c6f288121ef1a42796d0b25b9d /hw/vfio/spapr.c | |
parent | 5608956575088554f7612b716916efafae46187c (diff) | |
download | qemu-038adc2f5850e32019bda06c559d0301be436eae.zip qemu-038adc2f5850e32019bda06c559d0301be436eae.tar.gz qemu-038adc2f5850e32019bda06c559d0301be436eae.tar.bz2 |
core: replace getpagesize() with qemu_real_host_page_size
There are three page size in qemu:
real host page size
host page size
target page size
All of them have dedicate variable to represent. For the last two, we
use the same form in the whole qemu project, while for the first one we
use two forms: qemu_real_host_page_size and getpagesize().
qemu_real_host_page_size is defined to be a replacement of
getpagesize(), so let it serve the role.
[Note] Not fully tested for some arch or device.
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20191013021145.16011-3-richardw.yang@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/vfio/spapr.c')
-rw-r--r-- | hw/vfio/spapr.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/hw/vfio/spapr.c b/hw/vfio/spapr.c index e853eeb..33692fc 100644 --- a/hw/vfio/spapr.c +++ b/hw/vfio/spapr.c @@ -196,14 +196,15 @@ int vfio_spapr_create_window(VFIOContainer *container, * bits_per_level is a safe guess of how much we can allocate per level: * 8 is the current minimum for CONFIG_FORCE_MAX_ZONEORDER and MAX_ORDER * is usually bigger than that. - * Below we look at getpagesize() as TCEs are allocated from system pages. + * Below we look at qemu_real_host_page_size as TCEs are allocated from + * system pages. */ - bits_per_level = ctz64(getpagesize()) + 8; + bits_per_level = ctz64(qemu_real_host_page_size) + 8; create.levels = bits_total / bits_per_level; if (bits_total % bits_per_level) { ++create.levels; } - max_levels = (64 - create.page_shift) / ctz64(getpagesize()); + max_levels = (64 - create.page_shift) / ctz64(qemu_real_host_page_size); for ( ; create.levels <= max_levels; ++create.levels) { ret = ioctl(container->fd, VFIO_IOMMU_SPAPR_TCE_CREATE, &create); if (!ret) { |