[Qemu-devel] [RFC v3 PATCH 04/45] multi-process: Add stub functions to facilate build of multi-process

[Jagannathan Raman]

Add stub functions that are needed during compile time but not in
runtime.

Signed-off-by: John G Johnson <address@hidden>
Signed-off-by: Jagannathan Raman <address@hidden>
Signed-off-by: Elena Ufimtseva <address@hidden>
---
 accel/stubs/kvm-stub.c    |  5 +++
 accel/stubs/tcg-stub.c    | 85 +++++++++++++++++++++++++++++++++++++++++++++++
 stubs/machine-init-done.c |  4 +++
 stubs/monitor.c           | 33 ++++++++++++++++++
 stubs/net-stub.c          | 31 +++++++++++++++++
 stubs/replay.c            | 14 ++++++++
 stubs/vl-stub.c           | 77 ++++++++++++++++++++++++++++++++++++++++++
 stubs/vmstate.c           | 20 +++++++++++
 stubs/xen-mapcache.c      | 22 ++++++++++++
 9 files changed, 291 insertions(+)
 create mode 100644 stubs/net-stub.c
 create mode 100644 stubs/vl-stub.c
 create mode 100644 stubs/xen-mapcache.c

diff --git a/accel/stubs/kvm-stub.c b/accel/stubs/kvm-stub.c
index 6feb66e..f129dfb 100644
--- a/accel/stubs/kvm-stub.c
+++ b/accel/stubs/kvm-stub.c
@@ -31,6 +31,7 @@ bool kvm_allowed;
 bool kvm_readonly_mem_allowed;
 bool kvm_ioeventfd_any_length_allowed;
 bool kvm_msi_use_devid;
+bool kvm_halt_in_kernel_allowed;
 
 int kvm_destroy_vcpu(CPUState *cpu)
 {
@@ -58,6 +59,10 @@ void kvm_cpu_synchronize_post_init(CPUState *cpu)
 {
 }
 
+void kvm_cpu_synchronize_pre_loadvm(CPUState *cpu)
+{
+}
+
 int kvm_cpu_exec(CPUState *cpu)
 {
     abort();
diff --git a/accel/stubs/tcg-stub.c b/accel/stubs/tcg-stub.c
index 76ae461..52722c7 100644
--- a/accel/stubs/tcg-stub.c
+++ b/accel/stubs/tcg-stub.c
@@ -16,11 +16,96 @@
 #include "tcg/tcg.h"
 #include "exec/cpu-common.h"
 #include "exec/exec-all.h"
+#include "translate-all.h"
+#include "exec/ram_addr.h"
+
+bool parallel_cpus;
 
 void tb_flush(CPUState *cpu)
 {
 }
 
+void tb_check_watchpoint(CPUState *cpu)
+{
+}
+
+void tb_invalidate_phys_range(ram_addr_t start, ram_addr_t end)
+{
+}
+
+void tb_invalidate_phys_page_range(tb_page_addr_t start, tb_page_addr_t end,
+                                   int is_cpu_write_access)
+{
+}
+
+void tb_invalidate_phys_page_fast(struct page_collection *pages,
+                                  tb_page_addr_t start, int len)
+{
+}
+
+void tlb_init(CPUState *cpu)
+{
+}
+
 void tlb_set_dirty(CPUState *cpu, target_ulong vaddr)
 {
 }
+
+void tlb_flush(CPUState *cpu)
+{
+}
+
+void tlb_flush_page(CPUState *cpu, target_ulong addr)
+{
+}
+
+void tlb_reset_dirty(CPUState *cpu, ram_addr_t start1, ram_addr_t length)
+{
+}
+
+void tcg_region_init(void)
+{
+}
+
+void tcg_register_thread(void)
+{
+}
+
+void tcg_flush_softmmu_tlb(CPUState *cs)
+{
+}
+
+void cpu_loop_exit_noexc(CPUState *cpu)
+{
+    cpu->exception_index = -1;
+    cpu_loop_exit(cpu);
+}
+
+void cpu_loop_exit(CPUState *cpu)
+{
+    cpu->can_do_io = 1;
+    siglongjmp(cpu->jmp_env, 1);
+}
+
+void cpu_reloading_memory_map(void)
+{
+}
+
+int cpu_exec(CPUState *cpu)
+{
+    return 0;
+}
+
+void cpu_exec_step_atomic(CPUState *cpu)
+{
+}
+
+struct page_collection *
+page_collection_lock(tb_page_addr_t start, tb_page_addr_t end)
+{
+    return NULL;
+}
+
+void page_collection_unlock(struct page_collection *set)
+{
+}
diff --git a/stubs/machine-init-done.c b/stubs/machine-init-done.c
index cd8e813..3deabc9 100644
--- a/stubs/machine-init-done.c
+++ b/stubs/machine-init-done.c
@@ -6,3 +6,7 @@ bool machine_init_done = true;
 void qemu_add_machine_init_done_notifier(Notifier *notify)
 {
 }
+
+void qemu_remove_machine_init_done_notifier(Notifier *notify)
+{
+}
diff --git a/stubs/monitor.c b/stubs/monitor.c
index c3e9a2e..75dafce 100644
--- a/stubs/monitor.c
+++ b/stubs/monitor.c
@@ -2,6 +2,12 @@
 #include "qapi/error.h"
 #include "qapi/qapi-emit-events.h"
 #include "monitor/monitor.h"
+#include "qapi/qapi-types-misc.h"
+#include "qapi/qapi-commands-misc.h"
+#include "qapi/qapi-types-qom.h"
+#include "qapi/qapi-commands-qdev.h"
+#include "hw/qdev-core.h"
+#include "sysemu/sysemu.h"
 
 __thread Monitor *cur_mon;
 
@@ -27,3 +33,30 @@ void monitor_init_hmp(Chardev *chr, bool use_readline)
 void qapi_event_emit(QAPIEvent event, QDict *qdict)
 {
 }
+
+int monitor_get_cpu_index(void)
+{
+    return -ENOSYS;
+}
+int monitor_printf(Monitor *mon, const char *fmt, ...)
+{
+    return -ENOSYS;
+}
+
+bool monitor_cur_is_qmp(void)
+{
+    return false;
+}
+
+ObjectPropertyInfoList *qmp_device_list_properties(const char *typename,
+                                                   Error **errp)
+{
+    return NULL;
+}
+
+VMChangeStateEntry *qdev_add_vm_change_state_handler(DeviceState *dev,
+                                                     VMChangeStateHandler *cb,
+                                                     void *opaque)
+{
+    return NULL;
+}
diff --git a/stubs/net-stub.c b/stubs/net-stub.c
new file mode 100644
index 0000000..cb2274b
--- /dev/null
+++ b/stubs/net-stub.c
@@ -0,0 +1,31 @@
+#include "qemu/osdep.h"
+#include "qemu-common.h"
+#include "net/net.h"
+
+int qemu_find_net_clients_except(const char *id, NetClientState **ncs,
+                                 NetClientDriver type, int max)
+{
+    return -ENOSYS;
+}
+
+NetClientState *net_hub_port_find(int hub_id)
+{
+    return NULL;
+}
+
+int net_hub_id_for_client(NetClientState *nc, int *id)
+{
+    return -ENOSYS;
+}
+
+int qemu_show_nic_models(const char *arg, const char *const *models)
+{
+    return -ENOSYS;
+}
+
+int qemu_find_nic_model(NICInfo *nd, const char * const *models,
+                        const char *default_model)
+{
+    return -ENOSYS;
+}
+
diff --git a/stubs/replay.c b/stubs/replay.c
index 4ac6078..38fd1d3 100644
--- a/stubs/replay.c
+++ b/stubs/replay.c
@@ -80,3 +80,17 @@ void replay_mutex_lock(void)
 void replay_mutex_unlock(void)
 {
 }
+
+bool replay_has_checkpoint(void)
+{
+    return false;
+}
+
+int replay_get_instructions(void)
+{
+    return 0;
+}
+
+void replay_account_executed_instructions(void)
+{
+}
diff --git a/stubs/vl-stub.c b/stubs/vl-stub.c
new file mode 100644
index 0000000..89db36c
--- /dev/null
+++ b/stubs/vl-stub.c
@@ -0,0 +1,77 @@
+#include "qemu/osdep.h"
+#include "qemu-common.h"
+#include "qemu/uuid.h"
+#include "sysemu/sysemu.h"
+#include "exec/cpu-common.h"
+#include "exec/gdbstub.h"
+#include "sysemu/replay.h"
+#include "disas/disas.h"
+
+bool tcg_allowed;
+bool xen_allowed;
+bool boot_strict;
+
+int mem_prealloc;
+int smp_cpus;
+int vga_interface_type = VGA_NONE;
+int smp_cores = 1;
+int smp_threads = 1;
+int icount_align_option;
+int boot_menu;
+
+unsigned int max_cpus;
+const uint32_t arch_type;
+const char *mem_path;
+uint8_t qemu_extra_params_fw[2];
+uint8_t *boot_splash_filedata;
+size_t boot_splash_filedata_size;
+struct syminfo *syminfos;
+
+ram_addr_t ram_size;
+MachineState *current_machine;
+QemuUUID qemu_uuid;
+
+int runstate_is_running(void)
+{
+    return 0;
+}
+
+void runstate_set(RunState new_state)
+{
+}
+
+void vm_state_notify(int running, RunState state)
+{
+}
+
+bool qemu_vmstop_requested(RunState *r)
+{
+    return false;
+}
+
+void qemu_system_debug_request(void)
+{
+}
+
+char *qemu_find_file(int type, const char *name)
+{
+    return NULL;
+}
+
+void gdb_set_stop_cpu(CPUState *cpu)
+{
+}
+
+void replay_enable_events(void)
+{
+}
+
+void replay_disable_events(void)
+{
+}
+
+#ifdef TARGET_I386
+void x86_cpu_list(void)
+{
+}
+#endif
diff --git a/stubs/vmstate.c b/stubs/vmstate.c
index e1e89b8..a9824bc 100644
--- a/stubs/vmstate.c
+++ b/stubs/vmstate.c
@@ -1,8 +1,11 @@
 #include "qemu/osdep.h"
 #include "migration/vmstate.h"
+#include "migration/misc.h"
 
 const VMStateDescription vmstate_dummy = {};
 
+const VMStateInfo vmstate_info_timer;
+
 int vmstate_register_with_alias_id(DeviceState *dev,
                                    int instance_id,
                                    const VMStateDescription *vmsd,
@@ -23,3 +26,20 @@ bool vmstate_check_only_migratable(const VMStateDescription 
*vmsd)
 {
     return true;
 }
+
+void vmstate_register_ram(MemoryRegion *mr, DeviceState *dev)
+{
+}
+
+void vmstate_unregister_ram(MemoryRegion *mr, DeviceState *dev)
+{
+}
+
+void vmstate_register_ram_global(MemoryRegion *mr)
+{
+}
+
+bool migration_is_idle(void)
+{
+    return true;
+}
diff --git a/stubs/xen-mapcache.c b/stubs/xen-mapcache.c
new file mode 100644
index 0000000..af5c031
--- /dev/null
+++ b/stubs/xen-mapcache.c
@@ -0,0 +1,22 @@
+#include "qemu/osdep.h"
+#include "exec/hwaddr.h"
+#include "exec/cpu-common.h"
+#include "sysemu/xen-mapcache.h"
+
+#ifdef CONFIG_XEN
+
+void xen_invalidate_map_cache_entry(uint8_t *buffer)
+{
+}
+
+uint8_t *xen_map_cache(hwaddr phys_addr, hwaddr size, uint8_t lock, bool dma)
+{
+    return NULL;
+}
+
+ram_addr_t xen_ram_addr_from_mapcache(void *ptr)
+{
+    return 0;
+}
+
+#endif
-- 
1.8.3.1