[Qemu-devel] [PATCH 09/12] vl: Replace DT_NOGRAPHIC with MachineState field

[Eduardo Habkost <ehabkost@redhat.com>]

All DisplayType values are just UI options that don't affect any
hardware emulation code, except for DT_NOGRAPHIC. Replace
DT_NOGRAPHIC with DT_NONE plus a new MachineState.nographic
field, so hardware emulation code don't need to use the
display_type variable.

Cc: Michael Walle <michael@walle.cc>
Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
 hw/lm32/milkymist.c     |  2 +-
 hw/nvram/fw_cfg.c       |  6 ++++--
 hw/sparc/sun4m.c        |  2 +-
 include/hw/boards.h     |  1 +
 include/sysemu/sysemu.h |  1 -
 vl.c                    | 12 ++++++------
 6 files changed, 13 insertions(+), 11 deletions(-)

diff --git a/hw/lm32/milkymist.c b/hw/lm32/milkymist.c
index e46283a..947c7db 100644
--- a/hw/lm32/milkymist.c
+++ b/hw/lm32/milkymist.c
@@ -163,7 +163,7 @@ milkymist_init(MachineState *machine)
     milkymist_memcard_create(0x60004000);
     milkymist_ac97_create(0x60005000, irq[4], irq[5], irq[6], irq[7]);
     milkymist_pfpu_create(0x60006000, irq[8]);
-    if (display_type != DT_NOGRAPHIC) {
+    if (!machine->nographic) {
         milkymist_tmu2_create(0x60007000, irq[9]);
     }
     milkymist_minimac2_create(0x60008000, 0x30000000, irq[10], irq[11]);
diff --git a/hw/nvram/fw_cfg.c b/hw/nvram/fw_cfg.c
index 73b0a81..e42b198 100644
--- a/hw/nvram/fw_cfg.c
+++ b/hw/nvram/fw_cfg.c
@@ -24,6 +24,7 @@
 #include "hw/hw.h"
 #include "sysemu/sysemu.h"
 #include "sysemu/dma.h"
+#include "hw/boards.h"
 #include "hw/isa/isa.h"
 #include "hw/nvram/fw_cfg.h"
 #include "hw/sysbus.h"
@@ -755,16 +756,17 @@ static void fw_cfg_machine_ready(struct Notifier *n, void *data)
 static void fw_cfg_init1(DeviceState *dev)
 {
     FWCfgState *s = FW_CFG(dev);
+    MachineState *machine = MACHINE(qdev_get_machine());
 
     assert(!object_resolve_path(FW_CFG_PATH, NULL));
 
-    object_property_add_child(qdev_get_machine(), FW_CFG_NAME, OBJECT(s), NULL);
+    object_property_add_child(OBJECT(machine), FW_CFG_NAME, OBJECT(s), NULL);
 
     qdev_init_nofail(dev);
 
     fw_cfg_add_bytes(s, FW_CFG_SIGNATURE, (char *)"QEMU", 4);
     fw_cfg_add_bytes(s, FW_CFG_UUID, qemu_uuid, 16);
-    fw_cfg_add_i16(s, FW_CFG_NOGRAPHIC, (uint16_t)(display_type == DT_NOGRAPHIC));
+    fw_cfg_add_i16(s, FW_CFG_NOGRAPHIC, (uint16_t)machine->nographic);
     fw_cfg_add_i16(s, FW_CFG_NB_CPUS, (uint16_t)smp_cpus);
     fw_cfg_add_i16(s, FW_CFG_BOOT_MENU, (uint16_t)boot_menu);
     fw_cfg_bootsplash(s);
diff --git a/hw/sparc/sun4m.c b/hw/sparc/sun4m.c
index 230dac9..d47f06a 100644
--- a/hw/sparc/sun4m.c
+++ b/hw/sparc/sun4m.c
@@ -1017,7 +1017,7 @@ static void sun4m_hw_init(const struct sun4m_hwdef *hwdef,
     slavio_timer_init_all(hwdef->counter_base, slavio_irq[19], slavio_cpu_irq, smp_cpus);
 
     slavio_serial_ms_kbd_init(hwdef->ms_kb_base, slavio_irq[14],
-                              display_type == DT_NOGRAPHIC, ESCC_CLOCK, 1);
+                              machine->nographic, ESCC_CLOCK, 1);
     /* Slavio TTYA (base+4, Linux ttyS0) is the first QEMU serial device
        Slavio TTYB (base+0, Linux ttyS1) is the second QEMU serial device */
     escc_init(hwdef->serial_base, slavio_irq[15], slavio_irq[15],
diff --git a/include/hw/boards.h b/include/hw/boards.h
index 3e9a92c..1353f8a 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -120,6 +120,7 @@ struct MachineState {
     char *firmware;
     bool iommu;
     bool suppress_vmdesc;
+    bool nographic;
 
     ram_addr_t ram_size;
     ram_addr_t maxram_size;
diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h
index 0f4e520..f92a53c 100644
--- a/include/sysemu/sysemu.h
+++ b/include/sysemu/sysemu.h
@@ -139,7 +139,6 @@ typedef enum DisplayType
     DT_SDL,
     DT_COCOA,
     DT_GTK,
-    DT_NOGRAPHIC,
     DT_NONE,
 } DisplayType;
 
diff --git a/vl.c b/vl.c
index 57064ea..5d0228b 100644
--- a/vl.c
+++ b/vl.c
@@ -2980,6 +2980,7 @@ int main(int argc, char **argv, char **envp)
     int show_vnc_port = 0;
     bool defconfig = true;
     bool userconfig = true;
+    bool nographic = false;
     const char *log_mask = NULL;
     const char *log_file = NULL;
     const char *trace_events = NULL;
@@ -3226,7 +3227,8 @@ int main(int argc, char **argv, char **envp)
                 display_type = select_display(optarg);
                 break;
             case QEMU_OPTION_nographic:
-                display_type = DT_NOGRAPHIC;
+                nographic = true;
+                display_type = DT_NONE;
                 break;
             case QEMU_OPTION_curses:
 #ifdef CONFIG_CURSES
@@ -4177,7 +4179,7 @@ int main(int argc, char **argv, char **envp)
          * -nographic _and_ redirects all ports explicitly - this is valid
          * usage, -nographic is just a no-op in this case.
          */
-        if (display_type == DT_NOGRAPHIC
+        if (nographic
             && (default_parallel || default_serial
                 || default_monitor || default_virtcon)) {
             error_report("-nographic cannot be used with -daemonize");
@@ -4191,7 +4193,7 @@ int main(int argc, char **argv, char **envp)
 #endif
     }
 
-    if (display_type == DT_NOGRAPHIC) {
+    if (nographic) {
         if (default_parallel)
             add_device_config(DEV_PARALLEL, "null");
         if (default_serial && default_monitor) {
@@ -4510,6 +4512,7 @@ int main(int argc, char **argv, char **envp)
     current_machine->ram_slots = ram_slots;
     current_machine->boot_order = boot_order;
     current_machine->cpu_model = cpu_model;
+    current_machine->nographic = nographic;
 
     machine_class->init(current_machine);
 
@@ -4560,9 +4563,6 @@ int main(int argc, char **argv, char **envp)
 
     /* init local displays */
     switch (display_type) {
-    case DT_NOGRAPHIC:
-        (void)ds;	/* avoid warning if no display is configured */
-        break;
     case DT_CURSES:
         curses_display_init(ds, full_screen);
         break;
-- 
2.1.0