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Replace qemu_real_host_page variables with inlined functions

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Replace the global variables with inlined helper functions. getpagesize() is very
likely annotated with a "const" function attribute (at least with glibc), and thus
optimization should apply even better.

This avoids the need for a constructor initialization too.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20220323155743.1585078-12-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Marc-André Lureau 2022-03-23 19:57:22 +04:00 • committed by Paolo Bonzini
parent b307e5052d
commit 8e3b0cbb72
53 changed files with 150 additions and 162 deletions
Download patch file Download diff file Expand all files Collapse all files

24
hw/vfio/common.c
View file

@ -397,7 +397,7 @@ static int vfio_dma_unmap_bitmap(VFIOContainer *container,
{
struct vfio_iommu_type1_dma_unmap *unmap;
struct vfio_bitmap *bitmap;
uint64_t pages = REAL_HOST_PAGE_ALIGN(size) / qemu_real_host_page_size;
uint64_t pages = REAL_HOST_PAGE_ALIGN(size) / qemu_real_host_page_size();
int ret;
unmap = g_malloc0(sizeof(*unmap) + sizeof(*bitmap));
@ -414,7 +414,7 @@ static int vfio_dma_unmap_bitmap(VFIOContainer *container,
* to qemu_real_host_page_size.
*/
bitmap->pgsize = qemu_real_host_page_size;
bitmap->pgsize = qemu_real_host_page_size();
bitmap->size = ROUND_UP(pages, sizeof(__u64) * BITS_PER_BYTE) /
BITS_PER_BYTE;
@ -882,8 +882,8 @@ static void vfio_listener_region_add(MemoryListener *listener,
}
if (unlikely((section->offset_within_address_space &
~qemu_real_host_page_mask) !=
(section->offset_within_region & ~qemu_real_host_page_mask))) {
~qemu_real_host_page_mask()) !=
(section->offset_within_region & ~qemu_real_host_page_mask()))) {
error_report("%s received unaligned region", __func__);
return;
}
@ -891,7 +891,7 @@ static void vfio_listener_region_add(MemoryListener *listener,
iova = REAL_HOST_PAGE_ALIGN(section->offset_within_address_space);
llend = int128_make64(section->offset_within_address_space);
llend = int128_add(llend, section->size);
llend = int128_and(llend, int128_exts64(qemu_real_host_page_mask));
llend = int128_and(llend, int128_exts64(qemu_real_host_page_mask()));
if (int128_ge(int128_make64(iova), llend)) {
if (memory_region_is_ram_device(section->mr)) {
@ -899,7 +899,7 @@ static void vfio_listener_region_add(MemoryListener *listener,
memory_region_name(section->mr),
section->offset_within_address_space,
int128_getlo(section->size),
qemu_real_host_page_size);
qemu_real_host_page_size());
}
return;
}
@ -1118,8 +1118,8 @@ static void vfio_listener_region_del(MemoryListener *listener,
}
if (unlikely((section->offset_within_address_space &
~qemu_real_host_page_mask) !=
(section->offset_within_region & ~qemu_real_host_page_mask))) {
~qemu_real_host_page_mask()) !=
(section->offset_within_region & ~qemu_real_host_page_mask()))) {
error_report("%s received unaligned region", __func__);
return;
}
@ -1150,7 +1150,7 @@ static void vfio_listener_region_del(MemoryListener *listener,
iova = REAL_HOST_PAGE_ALIGN(section->offset_within_address_space);
llend = int128_make64(section->offset_within_address_space);
llend = int128_add(llend, section->size);
llend = int128_and(llend, int128_exts64(qemu_real_host_page_mask));
llend = int128_and(llend, int128_exts64(qemu_real_host_page_mask()));
if (int128_ge(int128_make64(iova), llend)) {
return;
@ -1272,9 +1272,9 @@ static int vfio_get_dirty_bitmap(VFIOContainer *container, uint64_t iova,
* qemu_real_host_page_size to mark those dirty. Hence set bitmap's pgsize
* to qemu_real_host_page_size.
*/
range->bitmap.pgsize = qemu_real_host_page_size;
range->bitmap.pgsize = qemu_real_host_page_size();
pages = REAL_HOST_PAGE_ALIGN(range->size) / qemu_real_host_page_size;
pages = REAL_HOST_PAGE_ALIGN(range->size) / qemu_real_host_page_size();
range->bitmap.size = ROUND_UP(pages, sizeof(__u64) * BITS_PER_BYTE) /
BITS_PER_BYTE;
range->bitmap.data = g_try_malloc0(range->bitmap.size);
@ -1970,7 +1970,7 @@ static void vfio_get_iommu_info_migration(VFIOContainer *container,
* cpu_physical_memory_set_dirty_lebitmap() supports pages in bitmap of
* qemu_real_host_page_size to mark those dirty.
*/
if (cap_mig->pgsize_bitmap & qemu_real_host_page_size) {
if (cap_mig->pgsize_bitmap & qemu_real_host_page_size()) {
container->dirty_pages_supported = true;
container->max_dirty_bitmap_size = cap_mig->max_dirty_bitmap_size;
container->dirty_pgsizes = cap_mig->pgsize_bitmap;