/* KVM uses PAGE_SIZE in its definition of KVM_COALESCED_MMIO_MAX. We
* need to use the real host PAGE_SIZE, as that's what KVM will use.
*/
-#define PAGE_SIZE getpagesize()
+#define PAGE_SIZE qemu_real_host_page_size
//#define DEBUG_KVM
{
ram_addr_t start = section->offset_within_region +
memory_region_get_ram_addr(section->mr);
- ram_addr_t pages = int128_get64(section->size) / getpagesize();
+ ram_addr_t pages = int128_get64(section->size) / qemu_real_host_page_size;
cpu_physical_memory_set_dirty_lebitmap(bitmap, start, pages);
return 0;
* even with KVM. TARGET_PAGE_SIZE is assumed to be the minimum
* page size for the system though.
*/
- assert(TARGET_PAGE_SIZE <= getpagesize());
+ assert(TARGET_PAGE_SIZE <= qemu_real_host_page_size);
s->sigmask_len = 8;
#else
size_t host_memory_backend_pagesize(HostMemoryBackend *memdev)
{
- return getpagesize();
+ return qemu_real_host_page_size;
}
#endif
{
if (!bs || !bs->drv) {
/* page size or 4k (hdd sector size) should be on the safe side */
- return MAX(4096, getpagesize());
+ return MAX(4096, qemu_real_host_page_size);
}
return bs->bl.opt_mem_alignment;
{
if (!bs || !bs->drv) {
/* page size or 4k (hdd sector size) should be on the safe side */
- return MAX(4096, getpagesize());
+ return MAX(4096, qemu_real_host_page_size);
}
return bs->bl.min_mem_alignment;
{
BDRVRawState *s = bs->opaque;
char *buf;
- size_t max_align = MAX(MAX_BLOCKSIZE, getpagesize());
+ size_t max_align = MAX(MAX_BLOCKSIZE, qemu_real_host_page_size);
size_t alignments[] = {1, 512, 1024, 2048, 4096};
/* For SCSI generic devices the alignment is not really used.
ret = sg_get_max_segments(s->fd);
if (ret > 0) {
- bs->bl.max_transfer = MIN(bs->bl.max_transfer, ret * getpagesize());
+ bs->bl.max_transfer = MIN(bs->bl.max_transfer,
+ ret * qemu_real_host_page_size);
}
}
raw_probe_alignment(bs, s->fd, errp);
bs->bl.min_mem_alignment = s->buf_align;
- bs->bl.opt_mem_alignment = MAX(s->buf_align, getpagesize());
+ bs->bl.opt_mem_alignment = MAX(s->buf_align, qemu_real_host_page_size);
}
static int check_for_dasd(int fd)
size_t write_size = (max_size < MAX_BLOCKSIZE)
? BDRV_SECTOR_SIZE
: MAX_BLOCKSIZE;
- size_t max_align = MAX(MAX_BLOCKSIZE, getpagesize());
+ size_t max_align = MAX(MAX_BLOCKSIZE, qemu_real_host_page_size);
void *buf;
ssize_t n;
int ret;
bdrv_merge_limits(&bs->bl, &bs->file->bs->bl);
} else {
bs->bl.min_mem_alignment = 512;
- bs->bl.opt_mem_alignment = getpagesize();
+ bs->bl.opt_mem_alignment = qemu_real_host_page_size;
/* Safe default since most protocols use readv()/writev()/etc */
bs->bl.max_iov = IOV_MAX;
}
}
- s->bat_dirty_block = 4 * getpagesize();
+ s->bat_dirty_block = 4 * qemu_real_host_page_size;
s->bat_dirty_bmap =
bitmap_new(DIV_ROUND_UP(s->header_size, s->bat_dirty_block));
/* Using MADV_DONTNEED to discard memory is a Linux-specific feature */
#ifdef CONFIG_LINUX
void *t = qcow2_cache_get_table_addr(c, i);
- int align = getpagesize();
+ int align = qemu_real_host_page_size;
size_t mem_size = (size_t) c->table_size * num_tables;
size_t offset = QEMU_ALIGN_UP((uintptr_t) t, align) - (uintptr_t) t;
size_t length = QEMU_ALIGN_DOWN(mem_size - offset, align);
static size_t
udmabuf_get_size(struct vugbm_buffer *buf)
{
- return ROUND_UP(buf->width * buf->height * 4, getpagesize());
+ return ROUND_UP(buf->width * buf->height * 4, qemu_real_host_page_size);
}
static bool
#else
long qemu_minrampagesize(void)
{
- return getpagesize();
+ return qemu_real_host_page_size;
}
long qemu_maxrampagesize(void)
{
- return getpagesize();
+ return qemu_real_host_page_size;
}
#endif
new_block->max_length = max_size;
assert(max_size >= size);
new_block->fd = -1;
- new_block->page_size = getpagesize();
+ new_block->page_size = qemu_real_host_page_size;
new_block->host = host;
if (host) {
new_block->flags |= RAM_PREALLOC;
#include "migration/qemu-file-types.h"
#include "trace.h"
-#define FLIC_SAVE_INITIAL_SIZE getpagesize()
+#define FLIC_SAVE_INITIAL_SIZE qemu_real_host_page_size
#define FLIC_FAILED (-1UL)
#define FLIC_SAVEVM_VERSION 1
}
/* The NewWorld NVRAM is not located in the MacIO device */
- if (kvm_enabled() && getpagesize() > 4096) {
+ if (kvm_enabled() && qemu_real_host_page_size > 4096) {
/* We can't combine read-write and read-only in a single page, so
move the NVRAM out of ROM again for KVM */
nvram_addr = 0xFFE00000;
* our memory slot is of page size granularity.
*/
if (kvm_enabled()) {
- msi_window_size = getpagesize();
+ msi_window_size = qemu_real_host_page_size;
}
memory_region_init_io(&sphb->msiwindow, OBJECT(sphb), &spapr_msi_ops, spapr,
rdma_info_report("Initializing device %s %x.%x", pdev->name,
PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn));
- if (TARGET_PAGE_SIZE != getpagesize()) {
+ if (TARGET_PAGE_SIZE != qemu_real_host_page_size) {
error_setg(errp, "Target page size must be the same as host page size");
return;
}
* 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) {
hwaddr addr;
ram_addr_t ram_addr;
unsigned long len = (pages + HOST_LONG_BITS - 1) / HOST_LONG_BITS;
- unsigned long hpratio = getpagesize() / TARGET_PAGE_SIZE;
+ unsigned long hpratio = qemu_real_host_page_size / TARGET_PAGE_SIZE;
unsigned long page = BIT_WORD(start >> TARGET_PAGE_BITS);
/* start address is aligned at the start of a word? */
# define QEMU_VMALLOC_ALIGN (256 * 4096)
#elif defined(__linux__) && defined(__sparc__)
#include <sys/shm.h>
-# define QEMU_VMALLOC_ALIGN MAX(getpagesize(), SHMLBA)
+# define QEMU_VMALLOC_ALIGN MAX(qemu_real_host_page_size, SHMLBA)
#else
-# define QEMU_VMALLOC_ALIGN getpagesize()
+# define QEMU_VMALLOC_ALIGN qemu_real_host_page_size
#endif
#ifdef CONFIG_POSIX
static void migrate_handle_rp_req_pages(MigrationState *ms, const char* rbname,
ram_addr_t start, size_t len)
{
- long our_host_ps = getpagesize();
+ long our_host_ps = qemu_real_host_page_size;
trace_migrate_handle_rp_req_pages(rbname, start, len);
return false;
}
- if (getpagesize() != ram_pagesize_summary()) {
+ if (qemu_real_host_page_size != ram_pagesize_summary()) {
bool have_hp = false;
/* We've got a huge page */
#ifdef UFFD_FEATURE_MISSING_HUGETLBFS
*/
bool postcopy_ram_supported_by_host(MigrationIncomingState *mis)
{
- long pagesize = getpagesize();
+ long pagesize = qemu_real_host_page_size;
int ufd = -1;
bool ret = false; /* Error unless we change it */
void *testarea = NULL;
uint64_t pinfo;
uint64_t ret = -1;
uintptr_t addr = (uintptr_t) ptr;
- uintptr_t pagesize = getpagesize();
+ uintptr_t pagesize = qemu_real_host_page_size;
off_t offset = addr / pagesize * sizeof(pinfo);
int fd;
* will be a normal mapping, not a special hugepage one used
* for RAM.
*/
- if (getpagesize() < 0x10000) {
+ if (qemu_real_host_page_size < 0x10000) {
error_setg(errp,
"KVM can't supply 64kiB CI pages, which guest expects");
}
if (started && vubr->notifier.fd >= 0) {
vu_set_queue_host_notifier(dev, vq, vubr->notifier.fd,
- getpagesize(),
- qidx * getpagesize());
+ qemu_real_host_page_size,
+ qidx * qemu_real_host_page_size);
}
if (qidx % 2 == 1) {
{
VuDev *dev = (VuDev *)arg;
VubrDev *vubr = container_of(dev, VubrDev, vudev);
- int pagesize = getpagesize();
+ int pagesize = qemu_real_host_page_size;
int qidx;
while (true) {
void *addr;
int fd;
- length = getpagesize() * VHOST_USER_BRIDGE_MAX_QUEUES;
+ length = qemu_real_host_page_size * VHOST_USER_BRIDGE_MAX_QUEUES;
fd = mkstemp(template);
if (fd < 0) {
#endif
#endif
- return getpagesize();
+ return qemu_real_host_page_size;
}
size_t qemu_mempath_getpagesize(const char *mem_path)
#endif
#endif
- return getpagesize();
+ return qemu_real_host_page_size;
}
void *qemu_ram_mmap(int fd,
*/
flags = MAP_PRIVATE;
pagesize = qemu_fd_getpagesize(fd);
- if (fd == -1 || pagesize == getpagesize()) {
+ if (fd == -1 || pagesize == qemu_real_host_page_size) {
guardfd = -1;
flags |= MAP_ANONYMOUS;
} else {
}
#else
guardfd = -1;
- pagesize = getpagesize();
+ pagesize = qemu_real_host_page_size;
flags = MAP_PRIVATE | MAP_ANONYMOUS;
#endif
#if defined(__powerpc64__) && defined(__linux__)
pagesize = qemu_fd_getpagesize(fd);
#else
- pagesize = getpagesize();
+ pagesize = qemu_real_host_page_size;
#endif
munmap(ptr, size + pagesize);
}
#ifdef CONFIG_DEBUG_STACK_USAGE
void *ptr2;
#endif
- size_t pagesz = getpagesize();
+ size_t pagesz = qemu_real_host_page_size;
#ifdef _SC_THREAD_STACK_MIN
/* avoid stacks smaller than _SC_THREAD_STACK_MIN */
long min_stack_sz = sysconf(_SC_THREAD_STACK_MIN);
unsigned int usage;
void *ptr;
- for (ptr = stack + getpagesize(); ptr < stack + sz;
+ for (ptr = stack + qemu_real_host_page_size; ptr < stack + sz;
ptr += sizeof(uint32_t)) {
if (*(uint32_t *)ptr != 0xdeadbeaf) {
break;
Error **errp)
{
int i;
- size_t pagesize = getpagesize();
+ size_t pagesize = qemu_real_host_page_size;
memory = (memory + pagesize - 1) & -pagesize;
for (i = 0; i < memory / pagesize; i++) {
IOVAMapping m = {.host = host, .size = size, .iova = iova};
IOVAMapping *insert;
- assert(QEMU_IS_ALIGNED(size, getpagesize()));
- assert(QEMU_IS_ALIGNED(s->low_water_mark, getpagesize()));
- assert(QEMU_IS_ALIGNED(s->high_water_mark, getpagesize()));
+ assert(QEMU_IS_ALIGNED(size, qemu_real_host_page_size));
+ assert(QEMU_IS_ALIGNED(s->low_water_mark, qemu_real_host_page_size));
+ assert(QEMU_IS_ALIGNED(s->high_water_mark, qemu_real_host_page_size));
trace_qemu_vfio_new_mapping(s, host, size, index, iova);
assert(index >= 0);
index = mapping - s->mappings;
assert(mapping->size > 0);
- assert(QEMU_IS_ALIGNED(mapping->size, getpagesize()));
+ assert(QEMU_IS_ALIGNED(mapping->size, qemu_real_host_page_size));
assert(index >= 0 && index < s->nr_mappings);
if (ioctl(s->container, VFIO_IOMMU_UNMAP_DMA, &unmap)) {
error_setg(errp, "VFIO_UNMAP_DMA failed: %d", -errno);
IOVAMapping *mapping;
uint64_t iova0;
- assert(QEMU_PTR_IS_ALIGNED(host, getpagesize()));
- assert(QEMU_IS_ALIGNED(size, getpagesize()));
+ assert(QEMU_PTR_IS_ALIGNED(host, qemu_real_host_page_size));
+ assert(QEMU_IS_ALIGNED(size, qemu_real_host_page_size));
trace_qemu_vfio_dma_map(s, host, size, temporary, iova);
qemu_mutex_lock(&s->lock);
mapping = qemu_vfio_find_mapping(s, host, &index);
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