return true;
}
-/*
- * Check for things that postcopy won't support; returns 0 if the block
- * is fine.
- */
-static int check_range(const char *block_name, void *host_addr,
- ram_addr_t offset, ram_addr_t length, void *opaque)
-{
- RAMBlock *rb = qemu_ram_block_by_name(block_name);
-
- if (qemu_ram_pagesize(rb) > getpagesize()) {
- error_report("Postcopy doesn't support large page sizes yet (%s)",
- block_name);
- return -E2BIG;
- }
-
- return 0;
-}
-
/*
* Note: This has the side effect of munlock'ing all of RAM, that's
* normally fine since if the postcopy succeeds it gets turned back on at the
goto out;
}
- /* Check for anything about the RAMBlocks we don't support */
- if (qemu_ram_foreach_block(check_range, NULL)) {
- /* check_range will have printed its own error */
- goto out;
- }
-
ufd = syscall(__NR_userfaultfd, O_CLOEXEC);
if (ufd == -1) {
error_report("%s: userfaultfd not available: %s", __func__,
if (!ufd_version_check(ufd)) {
goto out;
}
+ /* TODO: Only allow huge pages if the kernel supports it */
/*
* userfault and mlock don't go together; we'll put it back later if