diff mbox series

[v4,07/27] hw/i386/x86: Remove X86MachineClass::fwcfg_dma_enabled field

Message ID 20250508133550.81391-8-philmd@linaro.org
State New
Headers show
Series hw/i386/pc: Remove deprecated 2.6 and 2.7 PC machines | expand

Commit Message

Philippe Mathieu-Daudé May 8, 2025, 1:35 p.m. UTC
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.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 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(-)

Comments

Zhao Liu May 9, 2025, 3:23 a.m. UTC | #1
On Thu, May 08, 2025 at 03:35:30PM +0200, Philippe Mathieu-Daudé wrote:
> Date: Thu,  8 May 2025 15:35:30 +0200
> From: Philippe Mathieu-Daudé <philmd@linaro.org>
> Subject: [PATCH v4 07/27] hw/i386/x86: Remove
>  X86MachineClass::fwcfg_dma_enabled field
> X-Mailer: git-send-email 2.47.1
> 
> 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.
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> ---
>  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(-)

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Igor Mammedov May 9, 2025, 3:41 p.m. UTC | #2
On Thu,  8 May 2025 15:35:30 +0200
Philippe Mathieu-Daudé <philmd@linaro.org> wrote:

> 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.
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> ---
>  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 fc460b82f82..29d37af11e6 100644
> --- a/include/hw/i386/x86.h
> +++ b/include/hw/i386/x86.h
> @@ -29,8 +29,6 @@
>  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 e0daf0d4fc3..b1262fb1523 100644
> --- a/hw/i386/microvm.c
> +++ b/hw/i386/microvm.c
> @@ -637,7 +637,6 @@ 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);
> @@ -671,8 +670,6 @@ 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 6e6b96bc345..bfa7e8f1e83 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";

shouldn't we remove "multiboot.bin" as well?

> -    }
> +    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 1b0671c5239..27254a0e9f1 100644
> --- a/hw/i386/x86-common.c
> +++ b/hw/i386/x86-common.c
> @@ -634,7 +634,6 @@ 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;
> @@ -993,7 +992,7 @@ 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",
Igor Mammedov May 9, 2025, 3:44 p.m. UTC | #3
On Fri, 9 May 2025 17:41:25 +0200
Igor Mammedov <imammedo@redhat.com> wrote:

> On Thu,  8 May 2025 15:35:30 +0200
> Philippe Mathieu-Daudé <philmd@linaro.org> wrote:
> 
> > 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.
> > 
> > Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> > ---
> >  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 fc460b82f82..29d37af11e6 100644
> > --- a/include/hw/i386/x86.h
> > +++ b/include/hw/i386/x86.h
> > @@ -29,8 +29,6 @@
> >  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 e0daf0d4fc3..b1262fb1523 100644
> > --- a/hw/i386/microvm.c
> > +++ b/hw/i386/microvm.c
> > @@ -637,7 +637,6 @@ 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);
> > @@ -671,8 +670,6 @@ 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 6e6b96bc345..bfa7e8f1e83 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";  
> 
> shouldn't we remove "multiboot.bin" as well?

never mind, I see it's being removed by the next patch

Reviewed-by: Igor Mammedov <imammedo@redhat.com>
diff mbox series

Patch

diff --git a/include/hw/i386/x86.h b/include/hw/i386/x86.h
index fc460b82f82..29d37af11e6 100644
--- a/include/hw/i386/x86.h
+++ b/include/hw/i386/x86.h
@@ -29,8 +29,6 @@ 
 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 e0daf0d4fc3..b1262fb1523 100644
--- a/hw/i386/microvm.c
+++ b/hw/i386/microvm.c
@@ -637,7 +637,6 @@  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);
@@ -671,8 +670,6 @@  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 6e6b96bc345..bfa7e8f1e83 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 1b0671c5239..27254a0e9f1 100644
--- a/hw/i386/x86-common.c
+++ b/hw/i386/x86-common.c
@@ -634,7 +634,6 @@  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;
@@ -993,7 +992,7 @@  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",