The first machine property to fall is Xen's Intel integrated graphics
passthrough. The "-machine igd-passthru" option does not set anymore
a property on the machine object, but desugars to a GlobalProperty on
accelerator objects.
The setter is very simple, since the value ends up in a
global variable, so this patch also provides an example before the more
complicated cases that follow it.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
hw/core/machine.c | 20 --------------------
hw/xen/xen-common.c | 16 ++++++++++++++++
include/hw/boards.h | 1 -
qemu-options.hx | 7 ++++---
vl.c | 14 ++++----------
5 files changed, 24 insertions(+), 34 deletions(-)
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 45ddfb6..d7a0356 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -412,20 +412,6 @@ static void machine_set_graphics(Object *obj, bool value, Error **errp)
ms->enable_graphics = value;
}
-static bool machine_get_igd_gfx_passthru(Object *obj, Error **errp)
-{
- MachineState *ms = MACHINE(obj);
-
- return ms->igd_gfx_passthru;
-}
-
-static void machine_set_igd_gfx_passthru(Object *obj, bool value, Error **errp)
-{
- MachineState *ms = MACHINE(obj);
-
- ms->igd_gfx_passthru = value;
-}
-
static char *machine_get_firmware(Object *obj, Error **errp)
{
MachineState *ms = MACHINE(obj);
@@ -862,12 +848,6 @@ static void machine_class_init(ObjectClass *oc, void *data)
object_class_property_set_description(oc, "graphics",
"Set on/off to enable/disable graphics emulation", &error_abort);
- object_class_property_add_bool(oc, "igd-passthru",
- machine_get_igd_gfx_passthru, machine_set_igd_gfx_passthru,
- &error_abort);
- object_class_property_set_description(oc, "igd-passthru",
- "Set on/off to enable/disable igd passthrou", &error_abort);
-
object_class_property_add_str(oc, "firmware",
machine_get_firmware, machine_set_firmware,
&error_abort);
diff --git a/hw/xen/xen-common.c b/hw/xen/xen-common.c
index 5284b0d..6cba30c 100644
--- a/hw/xen/xen-common.c
+++ b/hw/xen/xen-common.c
@@ -124,6 +124,16 @@ static void xen_change_state_handler(void *opaque, int running,
}
}
+static bool xen_get_igd_gfx_passthru(Object *obj, Error **errp)
+{
+ return has_igd_gfx_passthru;
+}
+
+static void xen_set_igd_gfx_passthru(Object *obj, bool value, Error **errp)
+{
+ has_igd_gfx_passthru = value;
+}
+
static void xen_setup_post(MachineState *ms, AccelState *accel)
{
int rc;
@@ -177,6 +187,12 @@ static void xen_accel_class_init(ObjectClass *oc, void *data)
ac->compat_props = g_ptr_array_new();
compat_props_add(ac->compat_props, compat, G_N_ELEMENTS(compat));
+
+ object_class_property_add_bool(oc, "igd-passthru",
+ xen_get_igd_gfx_passthru, xen_set_igd_gfx_passthru,
+ &error_abort);
+ object_class_property_set_description(oc, "igd-passthru",
+ "Set on/off to enable/disable igd passthrou", &error_abort);
}
#define TYPE_XEN_ACCEL ACCEL_CLASS_NAME("xen")
diff --git a/include/hw/boards.h b/include/hw/boards.h
index 36fcbda..cdcf481 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -287,7 +287,6 @@ struct MachineState {
bool mem_merge;
bool usb;
bool usb_disabled;
- bool igd_gfx_passthru;
char *firmware;
bool iommu;
bool suppress_vmdesc;
diff --git a/qemu-options.hx b/qemu-options.hx
index 9775258..6f12b31 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -37,7 +37,6 @@ DEF("machine", HAS_ARG, QEMU_OPTION_machine, \
" kvm_shadow_mem=size of KVM shadow MMU in bytes\n"
" dump-guest-core=on|off include guest memory in a core dump (default=on)\n"
" mem-merge=on|off controls memory merge support (default: on)\n"
- " igd-passthru=on|off controls IGD GFX passthrough support (default=off)\n"
" aes-key-wrap=on|off controls support for AES key wrapping (default=on)\n"
" dea-key-wrap=on|off controls support for DEA key wrapping (default=on)\n"
" suppress-vmdesc=on|off disables self-describing migration (default=off)\n"
@@ -71,8 +70,6 @@ more than one accelerator specified, the next one is used if the previous one
fails to initialize.
@item kernel_irqchip=on|off
Controls in-kernel irqchip support for the chosen accelerator when available.
-@item gfx_passthru=on|off
-Enables IGD GFX passthrough support for the chosen machine when available.
@item vmport=on|off|auto
Enables emulation of VMWare IO port, for vmmouse etc. auto says to select the
value based on accel. For accel=xen the default is off otherwise the default
@@ -120,6 +117,7 @@ ETEXI
DEF("accel", HAS_ARG, QEMU_OPTION_accel,
"-accel [accel=]accelerator[,prop[=value][,...]]\n"
" select accelerator (kvm, xen, hax, hvf, whpx or tcg; use 'help' for a list)\n"
+ " igd-passthru=on|off (enable Xen integrated Intel graphics passthrough, default=off)\n"
" tb-size=n (TCG translation block cache size)\n"
" thread=single|multi (enable multi-threaded TCG)\n", QEMU_ARCH_ALL)
STEXI
@@ -130,6 +128,9 @@ kvm, xen, hax, hvf, whpx or tcg can be available. By default, tcg is used. If th
more than one accelerator specified, the next one is used if the previous one
fails to initialize.
@table @option
+@item igd-passthru=on|off
+When Xen is in use, this option controls whether Intel integrated graphics
+devices can be passed through to the guest (default=off)
@item tb-size=@var{n}
Controls the size (in MiB) of the TCG translation block cache.
@item thread=single|multi
diff --git a/vl.c b/vl.c
index e6ff56b..ee872f2 100644
--- a/vl.c
+++ b/vl.c
@@ -1257,13 +1257,6 @@ static void configure_msg(QemuOpts *opts)
}
-/* Now we still need this for compatibility with XEN. */
-bool has_igd_gfx_passthru;
-static void igd_gfx_passthru(void)
-{
- has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
-}
-
/***********************************************************/
/* USB devices */
@@ -2642,6 +2635,10 @@ static int machine_set_property(void *opaque,
if (g_str_equal(qom_name, "accel")) {
return 0;
}
+ if (g_str_equal(qom_name, "igd-passthru")) {
+ object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name, value);
+ return 0;
+ }
return object_parse_property_opt(opaque, name, value, "type", errp);
}
@@ -4456,9 +4453,6 @@ int main(int argc, char **argv, char **envp)
exit(1);
}
- /* Check if IGD GFX passthrough. */
- igd_gfx_passthru();
-
/* init generic devices */
rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
qemu_opts_foreach(qemu_find_opts("device"),
--
1.8.3.1
Hi
On Mon, Dec 9, 2019 at 7:12 PM Paolo Bonzini <pbonzini@redhat.com> wrote:
>
> The first machine property to fall is Xen's Intel integrated graphics
> passthrough. The "-machine igd-passthru" option does not set anymore
> a property on the machine object, but desugars to a GlobalProperty on
> accelerator objects.
>
> The setter is very simple, since the value ends up in a
> global variable, so this patch also provides an example before the more
> complicated cases that follow it.
>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
> hw/core/machine.c | 20 --------------------
> hw/xen/xen-common.c | 16 ++++++++++++++++
> include/hw/boards.h | 1 -
> qemu-options.hx | 7 ++++---
> vl.c | 14 ++++----------
> 5 files changed, 24 insertions(+), 34 deletions(-)
>
> diff --git a/hw/core/machine.c b/hw/core/machine.c
> index 45ddfb6..d7a0356 100644
> --- a/hw/core/machine.c
> +++ b/hw/core/machine.c
> @@ -412,20 +412,6 @@ static void machine_set_graphics(Object *obj, bool value, Error **errp)
> ms->enable_graphics = value;
> }
>
> -static bool machine_get_igd_gfx_passthru(Object *obj, Error **errp)
> -{
> - MachineState *ms = MACHINE(obj);
> -
> - return ms->igd_gfx_passthru;
> -}
> -
> -static void machine_set_igd_gfx_passthru(Object *obj, bool value, Error **errp)
> -{
> - MachineState *ms = MACHINE(obj);
> -
> - ms->igd_gfx_passthru = value;
> -}
> -
> static char *machine_get_firmware(Object *obj, Error **errp)
> {
> MachineState *ms = MACHINE(obj);
> @@ -862,12 +848,6 @@ static void machine_class_init(ObjectClass *oc, void *data)
> object_class_property_set_description(oc, "graphics",
> "Set on/off to enable/disable graphics emulation", &error_abort);
>
> - object_class_property_add_bool(oc, "igd-passthru",
> - machine_get_igd_gfx_passthru, machine_set_igd_gfx_passthru,
> - &error_abort);
> - object_class_property_set_description(oc, "igd-passthru",
> - "Set on/off to enable/disable igd passthrou", &error_abort);
> -
> object_class_property_add_str(oc, "firmware",
> machine_get_firmware, machine_set_firmware,
> &error_abort);
> diff --git a/hw/xen/xen-common.c b/hw/xen/xen-common.c
> index 5284b0d..6cba30c 100644
> --- a/hw/xen/xen-common.c
> +++ b/hw/xen/xen-common.c
> @@ -124,6 +124,16 @@ static void xen_change_state_handler(void *opaque, int running,
> }
> }
>
> +static bool xen_get_igd_gfx_passthru(Object *obj, Error **errp)
> +{
> + return has_igd_gfx_passthru;
> +}
> +
> +static void xen_set_igd_gfx_passthru(Object *obj, bool value, Error **errp)
> +{
> + has_igd_gfx_passthru = value;
> +}
> +
> static void xen_setup_post(MachineState *ms, AccelState *accel)
> {
> int rc;
> @@ -177,6 +187,12 @@ static void xen_accel_class_init(ObjectClass *oc, void *data)
> ac->compat_props = g_ptr_array_new();
>
> compat_props_add(ac->compat_props, compat, G_N_ELEMENTS(compat));
> +
> + object_class_property_add_bool(oc, "igd-passthru",
> + xen_get_igd_gfx_passthru, xen_set_igd_gfx_passthru,
> + &error_abort);
> + object_class_property_set_description(oc, "igd-passthru",
> + "Set on/off to enable/disable igd passthrou", &error_abort);
> }
>
> #define TYPE_XEN_ACCEL ACCEL_CLASS_NAME("xen")
> diff --git a/include/hw/boards.h b/include/hw/boards.h
> index 36fcbda..cdcf481 100644
> --- a/include/hw/boards.h
> +++ b/include/hw/boards.h
> @@ -287,7 +287,6 @@ struct MachineState {
> bool mem_merge;
> bool usb;
> bool usb_disabled;
> - bool igd_gfx_passthru;
> char *firmware;
> bool iommu;
> bool suppress_vmdesc;
> diff --git a/qemu-options.hx b/qemu-options.hx
> index 9775258..6f12b31 100644
> --- a/qemu-options.hx
> +++ b/qemu-options.hx
> @@ -37,7 +37,6 @@ DEF("machine", HAS_ARG, QEMU_OPTION_machine, \
> " kvm_shadow_mem=size of KVM shadow MMU in bytes\n"
> " dump-guest-core=on|off include guest memory in a core dump (default=on)\n"
> " mem-merge=on|off controls memory merge support (default: on)\n"
> - " igd-passthru=on|off controls IGD GFX passthrough support (default=off)\n"
> " aes-key-wrap=on|off controls support for AES key wrapping (default=on)\n"
> " dea-key-wrap=on|off controls support for DEA key wrapping (default=on)\n"
> " suppress-vmdesc=on|off disables self-describing migration (default=off)\n"
> @@ -71,8 +70,6 @@ more than one accelerator specified, the next one is used if the previous one
> fails to initialize.
> @item kernel_irqchip=on|off
> Controls in-kernel irqchip support for the chosen accelerator when available.
> -@item gfx_passthru=on|off
> -Enables IGD GFX passthrough support for the chosen machine when available.
> @item vmport=on|off|auto
> Enables emulation of VMWare IO port, for vmmouse etc. auto says to select the
> value based on accel. For accel=xen the default is off otherwise the default
> @@ -120,6 +117,7 @@ ETEXI
> DEF("accel", HAS_ARG, QEMU_OPTION_accel,
> "-accel [accel=]accelerator[,prop[=value][,...]]\n"
> " select accelerator (kvm, xen, hax, hvf, whpx or tcg; use 'help' for a list)\n"
> + " igd-passthru=on|off (enable Xen integrated Intel graphics passthrough, default=off)\n"
> " tb-size=n (TCG translation block cache size)\n"
> " thread=single|multi (enable multi-threaded TCG)\n", QEMU_ARCH_ALL)
> STEXI
> @@ -130,6 +128,9 @@ kvm, xen, hax, hvf, whpx or tcg can be available. By default, tcg is used. If th
> more than one accelerator specified, the next one is used if the previous one
> fails to initialize.
> @table @option
> +@item igd-passthru=on|off
> +When Xen is in use, this option controls whether Intel integrated graphics
> +devices can be passed through to the guest (default=off)
> @item tb-size=@var{n}
> Controls the size (in MiB) of the TCG translation block cache.
> @item thread=single|multi
> diff --git a/vl.c b/vl.c
> index e6ff56b..ee872f2 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -1257,13 +1257,6 @@ static void configure_msg(QemuOpts *opts)
> }
>
>
> -/* Now we still need this for compatibility with XEN. */
> -bool has_igd_gfx_passthru;
> -static void igd_gfx_passthru(void)
> -{
> - has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
> -}
> -
> /***********************************************************/
> /* USB devices */
>
> @@ -2642,6 +2635,10 @@ static int machine_set_property(void *opaque,
> if (g_str_equal(qom_name, "accel")) {
> return 0;
> }
> + if (g_str_equal(qom_name, "igd-passthru")) {
> + object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name, value);
shouldn't it warn about deprecation?
> + return 0;
> + }
>
> return object_parse_property_opt(opaque, name, value, "type", errp);
> }
> @@ -4456,9 +4453,6 @@ int main(int argc, char **argv, char **envp)
> exit(1);
> }
>
> - /* Check if IGD GFX passthrough. */
> - igd_gfx_passthru();
> -
> /* init generic devices */
> rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
> qemu_opts_foreach(qemu_find_opts("device"),
> --
> 1.8.3.1
>
>
>
--
Marc-André Lureau
On 10/12/19 13:56, Marc-André Lureau wrote:
>> + if (g_str_equal(qom_name, "igd-passthru")) {
>> + object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name, value);
>
> shouldn't it warn about deprecation?
The old version is not deprecated (I'm only deprecating -tb-size because
it's a toplevel option, but not the -machine versions; they have been
there forever and probably have too many users).
Paolo
On 12/9/19 4:01 PM, Paolo Bonzini wrote:
> The first machine property to fall is Xen's Intel integrated graphics
> passthrough. The "-machine igd-passthru" option does not set anymore
> a property on the machine object, but desugars to a GlobalProperty on
> accelerator objects.
>
> The setter is very simple, since the value ends up in a
> global variable, so this patch also provides an example before the more
> complicated cases that follow it.
>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
> hw/core/machine.c | 20 --------------------
> hw/xen/xen-common.c | 16 ++++++++++++++++
> include/hw/boards.h | 1 -
> qemu-options.hx | 7 ++++---
> vl.c | 14 ++++----------
> 5 files changed, 24 insertions(+), 34 deletions(-)
>
> diff --git a/hw/core/machine.c b/hw/core/machine.c
> index 45ddfb6..d7a0356 100644
> --- a/hw/core/machine.c
> +++ b/hw/core/machine.c
> @@ -412,20 +412,6 @@ static void machine_set_graphics(Object *obj, bool value, Error **errp)
> ms->enable_graphics = value;
> }
>
> -static bool machine_get_igd_gfx_passthru(Object *obj, Error **errp)
> -{
> - MachineState *ms = MACHINE(obj);
> -
> - return ms->igd_gfx_passthru;
> -}
> -
> -static void machine_set_igd_gfx_passthru(Object *obj, bool value, Error **errp)
> -{
> - MachineState *ms = MACHINE(obj);
> -
> - ms->igd_gfx_passthru = value;
> -}
> -
> static char *machine_get_firmware(Object *obj, Error **errp)
> {
> MachineState *ms = MACHINE(obj);
> @@ -862,12 +848,6 @@ static void machine_class_init(ObjectClass *oc, void *data)
> object_class_property_set_description(oc, "graphics",
> "Set on/off to enable/disable graphics emulation", &error_abort);
>
> - object_class_property_add_bool(oc, "igd-passthru",
> - machine_get_igd_gfx_passthru, machine_set_igd_gfx_passthru,
> - &error_abort);
> - object_class_property_set_description(oc, "igd-passthru",
> - "Set on/off to enable/disable igd passthrou", &error_abort);
So before this option was available in builds/targets ...
> -
> object_class_property_add_str(oc, "firmware",
> machine_get_firmware, machine_set_firmware,
> &error_abort);
> diff --git a/hw/xen/xen-common.c b/hw/xen/xen-common.c
> index 5284b0d..6cba30c 100644
> --- a/hw/xen/xen-common.c
> +++ b/hw/xen/xen-common.c
> @@ -124,6 +124,16 @@ static void xen_change_state_handler(void *opaque, int running,
> }
> }
>
> +static bool xen_get_igd_gfx_passthru(Object *obj, Error **errp)
> +{
> + return has_igd_gfx_passthru;
> +}
> +
> +static void xen_set_igd_gfx_passthru(Object *obj, bool value, Error **errp)
> +{
> + has_igd_gfx_passthru = value;
> +}
> +
> static void xen_setup_post(MachineState *ms, AccelState *accel)
> {
> int rc;
> @@ -177,6 +187,12 @@ static void xen_accel_class_init(ObjectClass *oc, void *data)
> ac->compat_props = g_ptr_array_new();
>
> compat_props_add(ac->compat_props, compat, G_N_ELEMENTS(compat));
> +
> + object_class_property_add_bool(oc, "igd-passthru",
> + xen_get_igd_gfx_passthru, xen_set_igd_gfx_passthru,
> + &error_abort);
> + object_class_property_set_description(oc, "igd-passthru",
> + "Set on/off to enable/disable igd passthrou", &error_abort);
... and now it is only available when building with --enable-xen.
This is a good cleanup.
I wonder if ppl uses 'igd-passthru=off' without Xen, won't it break
their command line?
> }
>
> #define TYPE_XEN_ACCEL ACCEL_CLASS_NAME("xen")
> diff --git a/include/hw/boards.h b/include/hw/boards.h
> index 36fcbda..cdcf481 100644
> --- a/include/hw/boards.h
> +++ b/include/hw/boards.h
> @@ -287,7 +287,6 @@ struct MachineState {
> bool mem_merge;
> bool usb;
> bool usb_disabled;
> - bool igd_gfx_passthru;
> char *firmware;
> bool iommu;
> bool suppress_vmdesc;
> diff --git a/qemu-options.hx b/qemu-options.hx
> index 9775258..6f12b31 100644
> --- a/qemu-options.hx
> +++ b/qemu-options.hx
> @@ -37,7 +37,6 @@ DEF("machine", HAS_ARG, QEMU_OPTION_machine, \
> " kvm_shadow_mem=size of KVM shadow MMU in bytes\n"
> " dump-guest-core=on|off include guest memory in a core dump (default=on)\n"
> " mem-merge=on|off controls memory merge support (default: on)\n"
> - " igd-passthru=on|off controls IGD GFX passthrough support (default=off)\n"
> " aes-key-wrap=on|off controls support for AES key wrapping (default=on)\n"
> " dea-key-wrap=on|off controls support for DEA key wrapping (default=on)\n"
> " suppress-vmdesc=on|off disables self-describing migration (default=off)\n"
> @@ -71,8 +70,6 @@ more than one accelerator specified, the next one is used if the previous one
> fails to initialize.
> @item kernel_irqchip=on|off
> Controls in-kernel irqchip support for the chosen accelerator when available.
> -@item gfx_passthru=on|off
> -Enables IGD GFX passthrough support for the chosen machine when available.
> @item vmport=on|off|auto
> Enables emulation of VMWare IO port, for vmmouse etc. auto says to select the
> value based on accel. For accel=xen the default is off otherwise the default
> @@ -120,6 +117,7 @@ ETEXI
> DEF("accel", HAS_ARG, QEMU_OPTION_accel,
> "-accel [accel=]accelerator[,prop[=value][,...]]\n"
> " select accelerator (kvm, xen, hax, hvf, whpx or tcg; use 'help' for a list)\n"
Here we could use:
#ifdef CONFIG_XEN_BACKEND
(not sure we want such #ifdefry although)
> + " igd-passthru=on|off (enable Xen integrated Intel graphics passthrough, default=off)\n"
#endif
> " tb-size=n (TCG translation block cache size)\n"
> " thread=single|multi (enable multi-threaded TCG)\n", QEMU_ARCH_ALL)
> STEXI
> @@ -130,6 +128,9 @@ kvm, xen, hax, hvf, whpx or tcg can be available. By default, tcg is used. If th
> more than one accelerator specified, the next one is used if the previous one
> fails to initialize.
> @table @option
> +@item igd-passthru=on|off
> +When Xen is in use, this option controls whether Intel integrated graphics
> +devices can be passed through to the guest (default=off)
> @item tb-size=@var{n}
> Controls the size (in MiB) of the TCG translation block cache.
> @item thread=single|multi
> diff --git a/vl.c b/vl.c
> index e6ff56b..ee872f2 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -1257,13 +1257,6 @@ static void configure_msg(QemuOpts *opts)
> }
>
>
> -/* Now we still need this for compatibility with XEN. */
> -bool has_igd_gfx_passthru;
> -static void igd_gfx_passthru(void)
> -{
> - has_igd_gfx_passthru = current_machine->igd_gfx_passthru;
> -}
> -
> /***********************************************************/
> /* USB devices */
>
> @@ -2642,6 +2635,10 @@ static int machine_set_property(void *opaque,
> if (g_str_equal(qom_name, "accel")) {
> return 0;
> }
Similarly:
#ifdef CONFIG_XEN_BACKEND
> + if (g_str_equal(qom_name, "igd-passthru")) {
> + object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), qom_name, value);
> + return 0;
> + }
#endif
>
> return object_parse_property_opt(opaque, name, value, "type", errp);
> }
> @@ -4456,9 +4453,6 @@ int main(int argc, char **argv, char **envp)
> exit(1);
> }
>
> - /* Check if IGD GFX passthrough. */
> - igd_gfx_passthru();
> -
> /* init generic devices */
> rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
> qemu_opts_foreach(qemu_find_opts("device"),
>
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