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-rw-r--r--system/cpus.c8
-rw-r--r--system/memory.c2
-rw-r--r--system/physmem.c67
-rw-r--r--system/runstate.c35
-rw-r--r--system/vl.c7
5 files changed, 77 insertions, 42 deletions
diff --git a/system/cpus.c b/system/cpus.c
index 2cc5f88..d16b0df 100644
--- a/system/cpus.c
+++ b/system/cpus.c
@@ -299,14 +299,18 @@ static int do_vm_stop(RunState state, bool send_stop)
if (oldstate == RUN_STATE_RUNNING) {
pause_all_vcpus();
}
- vm_state_notify(0, state);
+ ret = vm_state_notify(0, state);
if (send_stop) {
qapi_event_send_stop();
}
}
bdrv_drain_all();
- ret = bdrv_flush_all();
+ /*
+ * Even if vm_state_notify() return failure,
+ * it would be better to flush as before.
+ */
+ ret |= bdrv_flush_all();
trace_vm_stop_flush_all(ret);
return ret;
diff --git a/system/memory.c b/system/memory.c
index 71434e7..63b983e 100644
--- a/system/memory.c
+++ b/system/memory.c
@@ -1627,7 +1627,7 @@ bool memory_region_init_resizeable_ram(MemoryRegion *mr,
return true;
}
-#ifdef CONFIG_POSIX
+#if defined(CONFIG_POSIX) && !defined(EMSCRIPTEN)
bool memory_region_init_ram_from_file(MemoryRegion *mr,
Object *owner,
const char *name,
diff --git a/system/physmem.c b/system/physmem.c
index 16cf557..a8a9ca3 100644
--- a/system/physmem.c
+++ b/system/physmem.c
@@ -29,9 +29,9 @@
#ifdef CONFIG_TCG
#include "accel/tcg/cpu-ops.h"
+#include "accel/tcg/iommu.h"
#endif /* CONFIG_TCG */
-#include "exec/exec-all.h"
#include "exec/cputlb.h"
#include "exec/page-protection.h"
#include "exec/target_page.h"
@@ -587,6 +587,8 @@ MemoryRegion *flatview_translate(FlatView *fv, hwaddr addr, hwaddr *xlat,
return mr;
}
+#ifdef CONFIG_TCG
+
typedef struct TCGIOMMUNotifier {
IOMMUNotifier n;
MemoryRegion *mr;
@@ -746,6 +748,33 @@ translate_fail:
return &d->map.sections[PHYS_SECTION_UNASSIGNED];
}
+MemoryRegionSection *iotlb_to_section(CPUState *cpu,
+ hwaddr index, MemTxAttrs attrs)
+{
+ int asidx = cpu_asidx_from_attrs(cpu, attrs);
+ CPUAddressSpace *cpuas = &cpu->cpu_ases[asidx];
+ AddressSpaceDispatch *d = cpuas->memory_dispatch;
+ int section_index = index & ~TARGET_PAGE_MASK;
+ MemoryRegionSection *ret;
+
+ assert(section_index < d->map.sections_nb);
+ ret = d->map.sections + section_index;
+ assert(ret->mr);
+ assert(ret->mr->ops);
+
+ return ret;
+}
+
+/* Called from RCU critical section */
+hwaddr memory_region_section_get_iotlb(CPUState *cpu,
+ MemoryRegionSection *section)
+{
+ AddressSpaceDispatch *d = flatview_to_dispatch(section->fv);
+ return section - d->map.sections;
+}
+
+#endif /* CONFIG_TCG */
+
void cpu_address_space_init(CPUState *cpu, int asidx,
const char *prefix, MemoryRegion *mr)
{
@@ -1002,14 +1031,6 @@ bool cpu_physical_memory_snapshot_get_dirty(DirtyBitmapSnapshot *snap,
return false;
}
-/* Called from RCU critical section */
-hwaddr memory_region_section_get_iotlb(CPUState *cpu,
- MemoryRegionSection *section)
-{
- AddressSpaceDispatch *d = flatview_to_dispatch(section->fv);
- return section - d->map.sections;
-}
-
static int subpage_register(subpage_t *mmio, uint32_t start, uint32_t end,
uint16_t section);
static subpage_t *subpage_init(FlatView *fv, hwaddr base);
@@ -1243,7 +1264,7 @@ long qemu_maxrampagesize(void)
return pagesize;
}
-#ifdef CONFIG_POSIX
+#if defined(CONFIG_POSIX) && !defined(EMSCRIPTEN)
static int64_t get_file_size(int fd)
{
int64_t size;
@@ -1978,7 +1999,7 @@ out_free:
}
}
-#ifdef CONFIG_POSIX
+#if defined(CONFIG_POSIX) && !defined(EMSCRIPTEN)
RAMBlock *qemu_ram_alloc_from_fd(ram_addr_t size, ram_addr_t max_size,
qemu_ram_resize_cb resized, MemoryRegion *mr,
uint32_t ram_flags, int fd, off_t offset,
@@ -2158,7 +2179,8 @@ RAMBlock *qemu_ram_alloc_internal(ram_addr_t size, ram_addr_t max_size,
assert(!host ^ (ram_flags & RAM_PREALLOC));
assert(max_size >= size);
-#ifdef CONFIG_POSIX /* ignore RAM_SHARED for Windows */
+ /* ignore RAM_SHARED for Windows and emscripten*/
+#if defined(CONFIG_POSIX) && !defined(EMSCRIPTEN)
if (!host) {
if (!share_flags && current_machine->aux_ram_share) {
ram_flags |= RAM_SHARED;
@@ -2255,7 +2277,7 @@ static void reclaim_ramblock(RAMBlock *block)
;
} else if (xen_enabled()) {
xen_invalidate_map_cache_entry(block->host);
-#ifndef _WIN32
+#if !defined(_WIN32) && !defined(EMSCRIPTEN)
} else if (block->fd >= 0) {
qemu_ram_munmap(block->fd, block->host, block->max_length);
close(block->fd);
@@ -2669,23 +2691,6 @@ static uint16_t dummy_section(PhysPageMap *map, FlatView *fv, MemoryRegion *mr)
return phys_section_add(map, &section);
}
-MemoryRegionSection *iotlb_to_section(CPUState *cpu,
- hwaddr index, MemTxAttrs attrs)
-{
- int asidx = cpu_asidx_from_attrs(cpu, attrs);
- CPUAddressSpace *cpuas = &cpu->cpu_ases[asidx];
- AddressSpaceDispatch *d = cpuas->memory_dispatch;
- int section_index = index & ~TARGET_PAGE_MASK;
- MemoryRegionSection *ret;
-
- assert(section_index < d->map.sections_nb);
- ret = d->map.sections + section_index;
- assert(ret->mr);
- assert(ret->mr->ops);
-
- return ret;
-}
-
static void io_mem_init(void)
{
memory_region_init_io(&io_mem_unassigned, NULL, &unassigned_mem_ops, NULL,
@@ -2830,7 +2835,7 @@ static void invalidate_and_set_dirty(MemoryRegion *mr, hwaddr addr,
}
if (dirty_log_mask & (1 << DIRTY_MEMORY_CODE)) {
assert(tcg_enabled());
- tb_invalidate_phys_range(addr, addr + length - 1);
+ tb_invalidate_phys_range(NULL, addr, addr + length - 1);
dirty_log_mask &= ~(1 << DIRTY_MEMORY_CODE);
}
cpu_physical_memory_set_dirty_range(addr, length, dirty_log_mask);
diff --git a/system/runstate.c b/system/runstate.c
index 272801d..de74d96 100644
--- a/system/runstate.c
+++ b/system/runstate.c
@@ -297,6 +297,7 @@ void qemu_system_vmstop_request(RunState state)
struct VMChangeStateEntry {
VMChangeStateHandler *cb;
VMChangeStateHandler *prepare_cb;
+ VMChangeStateHandlerWithRet *cb_ret;
void *opaque;
QTAILQ_ENTRY(VMChangeStateEntry) entries;
int priority;
@@ -320,14 +321,15 @@ static QTAILQ_HEAD(, VMChangeStateEntry) vm_change_state_head =
VMChangeStateEntry *qemu_add_vm_change_state_handler_prio(
VMChangeStateHandler *cb, void *opaque, int priority)
{
- return qemu_add_vm_change_state_handler_prio_full(cb, NULL, opaque,
- priority);
+ return qemu_add_vm_change_state_handler_prio_full(cb, NULL, NULL,
+ opaque, priority);
}
/**
* qemu_add_vm_change_state_handler_prio_full:
* @cb: the main callback to invoke
* @prepare_cb: a callback to invoke before the main callback
+ * @cb_ret: the main callback to invoke with return value
* @opaque: user data passed to the callbacks
* @priority: low priorities execute first when the vm runs and the reverse is
* true when the vm stops
@@ -344,6 +346,7 @@ VMChangeStateEntry *qemu_add_vm_change_state_handler_prio(
VMChangeStateEntry *
qemu_add_vm_change_state_handler_prio_full(VMChangeStateHandler *cb,
VMChangeStateHandler *prepare_cb,
+ VMChangeStateHandlerWithRet *cb_ret,
void *opaque, int priority)
{
VMChangeStateEntry *e;
@@ -352,6 +355,7 @@ qemu_add_vm_change_state_handler_prio_full(VMChangeStateHandler *cb,
e = g_malloc0(sizeof(*e));
e->cb = cb;
e->prepare_cb = prepare_cb;
+ e->cb_ret = cb_ret;
e->opaque = opaque;
e->priority = priority;
@@ -379,9 +383,10 @@ void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
g_free(e);
}
-void vm_state_notify(bool running, RunState state)
+int vm_state_notify(bool running, RunState state)
{
VMChangeStateEntry *e, *next;
+ int ret = 0;
trace_vm_state_notify(running, state, RunState_str(state));
@@ -393,7 +398,17 @@ void vm_state_notify(bool running, RunState state)
}
QTAILQ_FOREACH_SAFE(e, &vm_change_state_head, entries, next) {
- e->cb(e->opaque, running, state);
+ if (e->cb) {
+ e->cb(e->opaque, running, state);
+ } else if (e->cb_ret) {
+ /*
+ * Here ignore the return value of cb_ret because
+ * we only care about the stopping the device during
+ * the VM live migration to indicate whether the
+ * connection between qemu and backend is normal.
+ */
+ e->cb_ret(e->opaque, running, state);
+ }
}
} else {
QTAILQ_FOREACH_REVERSE_SAFE(e, &vm_change_state_head, entries, next) {
@@ -403,9 +418,19 @@ void vm_state_notify(bool running, RunState state)
}
QTAILQ_FOREACH_REVERSE_SAFE(e, &vm_change_state_head, entries, next) {
- e->cb(e->opaque, running, state);
+ if (e->cb) {
+ e->cb(e->opaque, running, state);
+ } else if (e->cb_ret) {
+ /*
+ * We should execute all registered callbacks even if
+ * one of them returns failure, otherwise, some cleanup
+ * work of the device will be skipped.
+ */
+ ret |= e->cb_ret(e->opaque, running, state);
+ }
}
}
+ return ret;
}
static ShutdownCause reset_requested;
diff --git a/system/vl.c b/system/vl.c
index 520956f..fd402b8 100644
--- a/system/vl.c
+++ b/system/vl.c
@@ -27,6 +27,7 @@
#include "qemu/datadir.h"
#include "qemu/units.h"
#include "qemu/module.h"
+#include "qemu/target-info.h"
#include "exec/cpu-common.h"
#include "exec/page-vary.h"
#include "hw/qdev-properties.h"
@@ -767,7 +768,7 @@ static QemuOptsList qemu_smp_opts = {
},
};
-#if defined(CONFIG_POSIX)
+#if defined(CONFIG_POSIX) && !defined(EMSCRIPTEN)
static QemuOptsList qemu_run_with_opts = {
.name = "run-with",
.head = QTAILQ_HEAD_INITIALIZER(qemu_run_with_opts.head),
@@ -1564,7 +1565,7 @@ static void machine_help_func(const QDict *qdict)
GSList *el;
const char *type = qdict_get_try_str(qdict, "type");
- machines = object_class_get_list(TYPE_MACHINE, false);
+ machines = object_class_get_list(target_machine_typename(), false);
if (type) {
ObjectClass *machine_class = OBJECT_CLASS(find_machine(type, machines));
if (machine_class) {
@@ -3678,7 +3679,7 @@ void qemu_init(int argc, char **argv)
case QEMU_OPTION_nouserconfig:
/* Nothing to be parsed here. Especially, do not error out below. */
break;
-#if defined(CONFIG_POSIX)
+#if defined(CONFIG_POSIX) && !defined(EMSCRIPTEN)
case QEMU_OPTION_daemonize:
os_set_daemonize(true);
break;
generated by cgit v1.1 at 2025-05-16 15:29:57 +0000