diff options
Diffstat (limited to 'xen-all.c')
| -rw-r--r-- | xen-all.c | 140 |
1 files changed, 82 insertions, 58 deletions
@@ -63,6 +63,7 @@ static inline ioreq_t *xen_vcpu_ioreq(shared_iopage_t *shared_page, int vcpu) typedef struct XenPhysmap { target_phys_addr_t start_addr; ram_addr_t size; + MemoryRegion *mr; target_phys_addr_t phys_offset; QLIST_ENTRY(XenPhysmap) list; @@ -80,8 +81,9 @@ typedef struct XenIOState { int send_vcpu; struct xs_handle *xenstore; - CPUPhysMemoryClient client; + MemoryListener memory_listener; QLIST_HEAD(, XenPhysmap) physmap; + target_phys_addr_t free_phys_offset; const XenPhysmap *log_for_dirtybit; Notifier exit; @@ -226,13 +228,14 @@ static XenPhysmap *get_physmapping(XenIOState *state, static int xen_add_to_physmap(XenIOState *state, target_phys_addr_t start_addr, ram_addr_t size, - target_phys_addr_t phys_offset) + MemoryRegion *mr, + target_phys_addr_t offset_within_region) { unsigned long i = 0; int rc = 0; XenPhysmap *physmap = NULL; target_phys_addr_t pfn, start_gpfn; - RAMBlock *block; + target_phys_addr_t phys_offset = memory_region_get_ram_addr(mr); if (get_physmapping(state, start_addr, size)) { return 0; @@ -245,17 +248,13 @@ static int xen_add_to_physmap(XenIOState *state, * the linear framebuffer to be that region. * Avoid tracking any regions that is not videoram and avoid tracking * the legacy vga region. */ - QLIST_FOREACH(block, &ram_list.blocks, next) { - if (!strcmp(block->idstr, "vga.vram") && block->offset == phys_offset - && start_addr > 0xbffff) { - goto go_physmap; - } + if (mr == framebuffer && start_addr > 0xbffff) { + goto go_physmap; } return -1; go_physmap: - DPRINTF("mapping vram to %llx - %llx, from %llx\n", - start_addr, start_addr + size, phys_offset); + DPRINTF("mapping vram to %llx - %llx\n", start_addr, start_addr + size); pfn = phys_offset >> TARGET_PAGE_BITS; start_gpfn = start_addr >> TARGET_PAGE_BITS; @@ -334,7 +333,8 @@ static int xen_remove_from_physmap(XenIOState *state, static int xen_add_to_physmap(XenIOState *state, target_phys_addr_t start_addr, ram_addr_t size, - target_phys_addr_t phys_offset) + MemoryRegion *mr, + target_phys_addr_t offset_within_region) { return -ENOSYS; } @@ -347,49 +347,62 @@ static int xen_remove_from_physmap(XenIOState *state, } #endif -static void xen_client_set_memory(struct CPUPhysMemoryClient *client, - target_phys_addr_t start_addr, - ram_addr_t size, - ram_addr_t phys_offset, - bool log_dirty) +static void xen_set_memory(struct MemoryListener *listener, + MemoryRegionSection *section, + bool add) { - XenIOState *state = container_of(client, XenIOState, client); - ram_addr_t flags = phys_offset & ~TARGET_PAGE_MASK; + XenIOState *state = container_of(listener, XenIOState, memory_listener); + target_phys_addr_t start_addr = section->offset_within_address_space; + ram_addr_t size = section->size; + bool log_dirty = memory_region_is_logging(section->mr); hvmmem_type_t mem_type; - if (!(start_addr != phys_offset - && ( (log_dirty && flags < IO_MEM_UNASSIGNED) - || (!log_dirty && flags == IO_MEM_UNASSIGNED)))) { + if (!memory_region_is_ram(section->mr)) { return; } - trace_xen_client_set_memory(start_addr, size, phys_offset, log_dirty); + if (!(section->mr != &ram_memory + && ( (log_dirty && add) || (!log_dirty && !add)))) { + return; + } + + trace_xen_client_set_memory(start_addr, size, log_dirty); start_addr &= TARGET_PAGE_MASK; size = TARGET_PAGE_ALIGN(size); - phys_offset &= TARGET_PAGE_MASK; - - switch (flags) { - case IO_MEM_RAM: - xen_add_to_physmap(state, start_addr, size, phys_offset); - break; - case IO_MEM_ROM: - mem_type = HVMMEM_ram_ro; - if (xc_hvm_set_mem_type(xen_xc, xen_domid, mem_type, - start_addr >> TARGET_PAGE_BITS, - size >> TARGET_PAGE_BITS)) { - DPRINTF("xc_hvm_set_mem_type error, addr: "TARGET_FMT_plx"\n", - start_addr); + + if (add) { + if (!memory_region_is_rom(section->mr)) { + xen_add_to_physmap(state, start_addr, size, + section->mr, section->offset_within_region); + } else { + mem_type = HVMMEM_ram_ro; + if (xc_hvm_set_mem_type(xen_xc, xen_domid, mem_type, + start_addr >> TARGET_PAGE_BITS, + size >> TARGET_PAGE_BITS)) { + DPRINTF("xc_hvm_set_mem_type error, addr: "TARGET_FMT_plx"\n", + start_addr); + } } - break; - case IO_MEM_UNASSIGNED: + } else { if (xen_remove_from_physmap(state, start_addr, size) < 0) { DPRINTF("physmapping does not exist at "TARGET_FMT_plx"\n", start_addr); } - break; } } +static void xen_region_add(MemoryListener *listener, + MemoryRegionSection *section) +{ + xen_set_memory(listener, section, true); +} + +static void xen_region_del(MemoryListener *listener, + MemoryRegionSection *section) +{ + xen_set_memory(listener, section, false); +} + static int xen_sync_dirty_bitmap(XenIOState *state, target_phys_addr_t start_addr, ram_addr_t size) @@ -433,43 +446,54 @@ static int xen_sync_dirty_bitmap(XenIOState *state, return 0; } -static int xen_log_start(CPUPhysMemoryClient *client, target_phys_addr_t phys_addr, ram_addr_t size) +static void xen_log_start(MemoryListener *listener, + MemoryRegionSection *section) { - XenIOState *state = container_of(client, XenIOState, client); + XenIOState *state = container_of(listener, XenIOState, memory_listener); + int r; - return xen_sync_dirty_bitmap(state, phys_addr, size); + r = xen_sync_dirty_bitmap(state, section->offset_within_address_space, + section->size); + assert(r >= 0); } -static int xen_log_stop(CPUPhysMemoryClient *client, target_phys_addr_t phys_addr, ram_addr_t size) +static void xen_log_stop(MemoryListener *listener, MemoryRegionSection *section) { - XenIOState *state = container_of(client, XenIOState, client); + XenIOState *state = container_of(listener, XenIOState, memory_listener); + int r; state->log_for_dirtybit = NULL; /* Disable dirty bit tracking */ - return xc_hvm_track_dirty_vram(xen_xc, xen_domid, 0, 0, NULL); + r = xc_hvm_track_dirty_vram(xen_xc, xen_domid, 0, 0, NULL); + assert(r >= 0); } -static int xen_client_sync_dirty_bitmap(struct CPUPhysMemoryClient *client, - target_phys_addr_t start_addr, - target_phys_addr_t end_addr) +static void xen_log_sync(MemoryListener *listener, MemoryRegionSection *section) { - XenIOState *state = container_of(client, XenIOState, client); + XenIOState *state = container_of(listener, XenIOState, memory_listener); + int r; - return xen_sync_dirty_bitmap(state, start_addr, end_addr - start_addr); + r = xen_sync_dirty_bitmap(state, section->offset_within_address_space, + section->size); + assert(r >= 0); } -static int xen_client_migration_log(struct CPUPhysMemoryClient *client, - int enable) +static void xen_log_global_start(MemoryListener *listener) +{ +} + +static void xen_log_global_stop(MemoryListener *listener) { - return 0; } -static CPUPhysMemoryClient xen_cpu_phys_memory_client = { - .set_memory = xen_client_set_memory, - .sync_dirty_bitmap = xen_client_sync_dirty_bitmap, - .migration_log = xen_client_migration_log, +static MemoryListener xen_memory_listener = { + .region_add = xen_region_add, + .region_del = xen_region_del, .log_start = xen_log_start, .log_stop = xen_log_stop, + .log_sync = xen_log_sync, + .log_global_start = xen_log_global_start, + .log_global_stop = xen_log_global_stop, }; /* VCPU Operations, MMIO, IO ring ... */ @@ -947,9 +971,9 @@ int xen_hvm_init(void) qemu_add_vm_change_state_handler(xen_hvm_change_state_handler, state); - state->client = xen_cpu_phys_memory_client; + state->memory_listener = xen_memory_listener; QLIST_INIT(&state->physmap); - cpu_register_phys_memory_client(&state->client); + memory_listener_register(&state->memory_listener); state->log_for_dirtybit = NULL; /* Initialize backend core & drivers */ |