diff options
Diffstat (limited to 'migration/postcopy-ram.c')
| -rw-r--r-- | migration/postcopy-ram.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/migration/postcopy-ram.c b/migration/postcopy-ram.c index 8bf6432567..bec6c2c66b 100644 --- a/migration/postcopy-ram.c +++ b/migration/postcopy-ram.c @@ -642,22 +642,28 @@ int postcopy_ram_enable_notify(MigrationIncomingState *mis) } static int qemu_ufd_copy_ioctl(int userfault_fd, void *host_addr, - void *from_addr, uint64_t pagesize) + void *from_addr, uint64_t pagesize, RAMBlock *rb) { + int ret; if (from_addr) { struct uffdio_copy copy_struct; copy_struct.dst = (uint64_t)(uintptr_t)host_addr; copy_struct.src = (uint64_t)(uintptr_t)from_addr; copy_struct.len = pagesize; copy_struct.mode = 0; - return ioctl(userfault_fd, UFFDIO_COPY, ©_struct); + ret = ioctl(userfault_fd, UFFDIO_COPY, ©_struct); } else { struct uffdio_zeropage zero_struct; zero_struct.range.start = (uint64_t)(uintptr_t)host_addr; zero_struct.range.len = pagesize; zero_struct.mode = 0; - return ioctl(userfault_fd, UFFDIO_ZEROPAGE, &zero_struct); + ret = ioctl(userfault_fd, UFFDIO_ZEROPAGE, &zero_struct); + } + if (!ret) { + ramblock_recv_bitmap_set_range(rb, host_addr, + pagesize / qemu_target_page_size()); } + return ret; } /* @@ -674,7 +680,7 @@ int postcopy_place_page(MigrationIncomingState *mis, void *host, void *from, * which would be slightly cheaper, but we'd have to be careful * of the order of updating our page state. */ - if (qemu_ufd_copy_ioctl(mis->userfault_fd, host, from, pagesize)) { + if (qemu_ufd_copy_ioctl(mis->userfault_fd, host, from, pagesize, rb)) { int e = errno; error_report("%s: %s copy host: %p from: %p (size: %zd)", __func__, strerror(e), host, from, pagesize); @@ -696,7 +702,8 @@ int postcopy_place_page_zero(MigrationIncomingState *mis, void *host, trace_postcopy_place_page_zero(host); if (qemu_ram_pagesize(rb) == getpagesize()) { - if (qemu_ufd_copy_ioctl(mis->userfault_fd, host, NULL, getpagesize())) { + if (qemu_ufd_copy_ioctl(mis->userfault_fd, host, NULL, getpagesize(), + rb)) { int e = errno; error_report("%s: %s zero host: %p", __func__, strerror(e), host); |