[PATCH-for-11.0 v6 10/13] hw/i386/x86: Remove X86MachineClass::fwcfg_dma_enabled field

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

The X86MachineClass::fwcfg_dma_enabled boolean was only used
by the pc-q35-2.6 and pc-i440fx-2.6 machines, which got
removed. Remove it and simplify.

'multiboot.bin' isn't used anymore, we'll remove it in the
next commit.

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
---
 include/hw/i386/x86.h | 2 --
 hw/i386/microvm.c     | 3 ---
 hw/i386/multiboot.c   | 7 +------
 hw/i386/x86-common.c  | 3 +--
 hw/i386/x86.c         | 2 --
 5 files changed, 2 insertions(+), 15 deletions(-)

diff --git a/include/hw/i386/x86.h b/include/hw/i386/x86.h
index 8755cad50a3..201eee80eb7 100644
--- a/include/hw/i386/x86.h
+++ b/include/hw/i386/x86.h
@@ -30,8 +30,6 @@
 struct X86MachineClass {
     MachineClass parent;
 
-    /* use DMA capable linuxboot option rom */
-    bool fwcfg_dma_enabled;
     /* CPU and apic information: */
     bool apic_xrupt_override;
 };
diff --git a/hw/i386/microvm.c b/hw/i386/microvm.c
index 69f04d74a15..8521df83584 100644
--- a/hw/i386/microvm.c
+++ b/hw/i386/microvm.c
@@ -641,7 +641,6 @@ GlobalProperty microvm_properties[] = {
 
 static void microvm_class_init(ObjectClass *oc, const void *data)
 {
-    X86MachineClass *x86mc = X86_MACHINE_CLASS(oc);
     MicrovmMachineClass *mmc = MICROVM_MACHINE_CLASS(oc);
     MachineClass *mc = MACHINE_CLASS(oc);
     HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
@@ -675,8 +674,6 @@ static void microvm_class_init(ObjectClass *oc, const void *data)
     hc->unplug_request = microvm_device_unplug_request_cb;
     hc->unplug = microvm_device_unplug_cb;
 
-    x86mc->fwcfg_dma_enabled = true;
-
     object_class_property_add(oc, MICROVM_MACHINE_RTC, "OnOffAuto",
                               microvm_machine_get_rtc,
                               microvm_machine_set_rtc,
diff --git a/hw/i386/multiboot.c b/hw/i386/multiboot.c
index 78690781b74..3b993126edb 100644
--- a/hw/i386/multiboot.c
+++ b/hw/i386/multiboot.c
@@ -153,7 +153,6 @@ int load_multiboot(X86MachineState *x86ms,
                    int kernel_file_size,
                    uint8_t *header)
 {
-    bool multiboot_dma_enabled = X86_MACHINE_GET_CLASS(x86ms)->fwcfg_dma_enabled;
     int i, is_multiboot = 0;
     uint32_t flags = 0;
     uint32_t mh_entry_addr;
@@ -402,11 +401,7 @@ int load_multiboot(X86MachineState *x86ms,
     fw_cfg_add_bytes(fw_cfg, FW_CFG_INITRD_DATA, mb_bootinfo_data,
                      sizeof(bootinfo));
 
-    if (multiboot_dma_enabled) {
-        option_rom[nb_option_roms].name = "multiboot_dma.bin";
-    } else {
-        option_rom[nb_option_roms].name = "multiboot.bin";
-    }
+    option_rom[nb_option_roms].name = "multiboot_dma.bin";
     option_rom[nb_option_roms].bootindex = 0;
     nb_option_roms++;
 
diff --git a/hw/i386/x86-common.c b/hw/i386/x86-common.c
index 60b7ab80433..1ee55382dab 100644
--- a/hw/i386/x86-common.c
+++ b/hw/i386/x86-common.c
@@ -645,7 +645,6 @@ void x86_load_linux(X86MachineState *x86ms,
                     int acpi_data_size,
                     bool pvh_enabled)
 {
-    bool linuxboot_dma_enabled = X86_MACHINE_GET_CLASS(x86ms)->fwcfg_dma_enabled;
     uint16_t protocol;
     int setup_size, kernel_size, cmdline_size;
     int dtb_size, setup_data_offset;
@@ -1004,7 +1003,7 @@ void x86_load_linux(X86MachineState *x86ms,
 
     option_rom[nb_option_roms].bootindex = 0;
     option_rom[nb_option_roms].name = "linuxboot.bin";
-    if (linuxboot_dma_enabled && fw_cfg_dma_enabled(fw_cfg)) {
+    if (fw_cfg_dma_enabled(fw_cfg)) {
         option_rom[nb_option_roms].name = "linuxboot_dma.bin";
     }
     nb_option_roms++;
diff --git a/hw/i386/x86.c b/hw/i386/x86.c
index f80533df1c5..dbf104d60af 100644
--- a/hw/i386/x86.c
+++ b/hw/i386/x86.c
@@ -375,14 +375,12 @@ static void x86_machine_initfn(Object *obj)
 static void x86_machine_class_init(ObjectClass *oc, const void *data)
 {
     MachineClass *mc = MACHINE_CLASS(oc);
-    X86MachineClass *x86mc = X86_MACHINE_CLASS(oc);
     NMIClass *nc = NMI_CLASS(oc);
 
     mc->cpu_index_to_instance_props = x86_cpu_index_to_props;
     mc->get_default_cpu_node_id = x86_get_default_cpu_node_id;
     mc->possible_cpu_arch_ids = x86_possible_cpu_arch_ids;
     mc->kvm_type = x86_kvm_type;
-    x86mc->fwcfg_dma_enabled = true;
     nc->nmi_monitor_handler = x86_nmi;
 
     object_class_property_add(oc, X86_MACHINE_SMM, "OnOffAuto",
-- 
2.51.0