diff options
Diffstat (limited to 'xen-all.c')
| -rw-r--r-- | xen-all.c | 39 |
1 files changed, 38 insertions, 1 deletions
@@ -14,6 +14,7 @@ #include "hw/pc.h" #include "hw/xen_common.h" #include "hw/xen_backend.h" +#include "qmp-commands.h" #include "range.h" #include "xen-mapcache.h" @@ -36,6 +37,7 @@ static MemoryRegion ram_memory, ram_640k, ram_lo, ram_hi; static MemoryRegion *framebuffer; +static bool xen_in_migration; /* Compatibility with older version */ #if __XEN_LATEST_INTERFACE_VERSION__ < 0x0003020a @@ -505,7 +507,8 @@ static void xen_sync_dirty_bitmap(XenIOState *state, bitmap); if (rc < 0) { if (rc != -ENODATA) { - fprintf(stderr, "xen: track_dirty_vram failed (0x" TARGET_FMT_plx + memory_region_set_dirty(framebuffer, 0, size); + DPRINTF("xen: track_dirty_vram failed (0x" TARGET_FMT_plx ", 0x" TARGET_FMT_plx "): %s\n", start_addr, start_addr + size, strerror(-rc)); } @@ -552,10 +555,14 @@ static void xen_log_sync(MemoryListener *listener, MemoryRegionSection *section) static void xen_log_global_start(MemoryListener *listener) { + if (xen_enabled()) { + xen_in_migration = true; + } } static void xen_log_global_stop(MemoryListener *listener) { + xen_in_migration = false; } static void xen_eventfd_add(MemoryListener *listener, @@ -588,6 +595,15 @@ static MemoryListener xen_memory_listener = { .priority = 10, }; +void qmp_xen_set_global_dirty_log(bool enable, Error **errp) +{ + if (enable) { + memory_global_dirty_log_start(); + } else { + memory_global_dirty_log_stop(); + } +} + /* VCPU Operations, MMIO, IO ring ... */ static void xen_reset_vcpu(void *opaque) @@ -1213,3 +1229,24 @@ void xen_shutdown_fatal_error(const char *fmt, ...) /* destroy the domain */ qemu_system_shutdown_request(); } + +void xen_modified_memory(ram_addr_t start, ram_addr_t length) +{ + if (unlikely(xen_in_migration)) { + int rc; + ram_addr_t start_pfn, nb_pages; + + if (length == 0) { + length = TARGET_PAGE_SIZE; + } + start_pfn = start >> TARGET_PAGE_BITS; + nb_pages = ((start + length + TARGET_PAGE_SIZE - 1) >> TARGET_PAGE_BITS) + - start_pfn; + rc = xc_hvm_modified_memory(xen_xc, xen_domid, start_pfn, nb_pages); + if (rc) { + fprintf(stderr, + "%s failed for "RAM_ADDR_FMT" ("RAM_ADDR_FMT"): %i, %s\n", + __func__, start, nb_pages, rc, strerror(-rc)); + } + } +} |