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a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1749454482; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=TcJoGsmjuY7yApxTpK2B0BsaJ06yASgzT1eWLc2qcfM=; b=EsMba4JL5Sw0oYnifb7bXLgQhnzE12L0WjMZTTUl4xjApLQE5DraRG9KJy4qEEkMAdBLuJ ZwBTN9F7ZGTD2S4imZcJ2IBSXrMxVDgQJxoIhhd3wS5LlWpq0nnIOJIf5w1qMMaMzNjB3f 83MIM6O5hW9uTdMYsA16yN1gMVww/YY= X-MC-Unique: DY9HLvsZOzOXGo9JX2F1Sw-1 X-Mimecast-MFC-AGG-ID: DY9HLvsZOzOXGo9JX2F1Sw_1749454478 From: Shaoqin Huang To: qemu-arm@nongnu.org Cc: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Peter Maydell , Gerd Hoffmann , Eric Auger , Shaoqin Huang , Alex Williamson , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , qemu-devel@nongnu.org Subject: [PATCH v3 1/2] ramfb: Add property to control if load the romfile Date: Mon, 9 Jun 2025 03:34:07 -0400 Message-Id: <20250609073408.2083831-2-shahuang@redhat.com> In-Reply-To: <20250609073408.2083831-1-shahuang@redhat.com> References: <20250609073408.2083831-1-shahuang@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.15 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" Now the ramfb will load the vgabios-ramfb.bin unconditionally, but only the x86 need the vgabios-ramfb.bin, this can cause that when use the release package on arm64 it can't find the vgabios-ramfb.bin. Because only seabios will use the vgabios-ramfb.bin, load the rom logic is x86-specific. For other !x86 platforms, the edk2 ships an EFI driver for ramfb, so they don't need to load the romfile. So add a new property use_legacy_x86_rom in both ramfb and vfio_pci device, because the vfio display also use the ramfb_setup() to load the vgabios-ramfb.bin file. After have this property, the machine type can set the compatibility to not load the vgabios-ramfb.bin if the arch doesn't need it. Signed-off-by: Shaoqin Huang --- hw/display/ramfb-standalone.c | 4 +++- hw/display/ramfb-stubs.c | 2 +- hw/display/ramfb.c | 6 ++++-- hw/vfio/display.c | 4 ++-- hw/vfio/pci.c | 1 + hw/vfio/pci.h | 1 + include/hw/display/ramfb.h | 2 +- 7 files changed, 13 insertions(+), 7 deletions(-) diff --git a/hw/display/ramfb-standalone.c b/hw/display/ramfb-standalone.c index 1be106b57f..af1175bf96 100644 --- a/hw/display/ramfb-standalone.c +++ b/hw/display/ramfb-standalone.c @@ -17,6 +17,7 @@ struct RAMFBStandaloneState { QemuConsole *con; RAMFBState *state; bool migrate; + bool use_legacy_x86_rom; }; =20 static void display_update_wrapper(void *dev) @@ -39,7 +40,7 @@ static void ramfb_realizefn(DeviceState *dev, Error **err= p) RAMFBStandaloneState *ramfb =3D RAMFB(dev); =20 ramfb->con =3D graphic_console_init(dev, 0, &wrapper_ops, dev); - ramfb->state =3D ramfb_setup(errp); + ramfb->state =3D ramfb_setup(ramfb->use_legacy_x86_rom, errp); } =20 static bool migrate_needed(void *opaque) @@ -62,6 +63,7 @@ static const VMStateDescription ramfb_dev_vmstate =3D { =20 static const Property ramfb_properties[] =3D { DEFINE_PROP_BOOL("x-migrate", RAMFBStandaloneState, migrate, true), + DEFINE_PROP_BOOL("use-legacy-x86-rom", RAMFBStandaloneState, use_legac= y_x86_rom, true), }; =20 static void ramfb_class_initfn(ObjectClass *klass, void *data) diff --git a/hw/display/ramfb-stubs.c b/hw/display/ramfb-stubs.c index cf64733b10..b83551357b 100644 --- a/hw/display/ramfb-stubs.c +++ b/hw/display/ramfb-stubs.c @@ -8,7 +8,7 @@ void ramfb_display_update(QemuConsole *con, RAMFBState *s) { } =20 -RAMFBState *ramfb_setup(Error **errp) +RAMFBState *ramfb_setup(bool romfile, Error **errp) { error_setg(errp, "ramfb support not available"); return NULL; diff --git a/hw/display/ramfb.c b/hw/display/ramfb.c index 8c0f907673..9a17d97d07 100644 --- a/hw/display/ramfb.c +++ b/hw/display/ramfb.c @@ -135,7 +135,7 @@ const VMStateDescription ramfb_vmstate =3D { } }; =20 -RAMFBState *ramfb_setup(Error **errp) +RAMFBState *ramfb_setup(bool romfile, Error **errp) { FWCfgState *fw_cfg =3D fw_cfg_find(); RAMFBState *s; @@ -147,7 +147,9 @@ RAMFBState *ramfb_setup(Error **errp) =20 s =3D g_new0(RAMFBState, 1); =20 - rom_add_vga("vgabios-ramfb.bin"); + if (romfile) { + rom_add_vga("vgabios-ramfb.bin"); + } fw_cfg_add_file_callback(fw_cfg, "etc/ramfb", NULL, ramfb_fw_cfg_write, s, &s->cfg, sizeof(s->cfg), false); diff --git a/hw/vfio/display.c b/hw/vfio/display.c index ea87830fe0..8bfd8eb1e3 100644 --- a/hw/vfio/display.c +++ b/hw/vfio/display.c @@ -365,7 +365,7 @@ static bool vfio_display_dmabuf_init(VFIOPCIDevice *vde= v, Error **errp) &vfio_display_dmabuf_ops, vdev); if (vdev->enable_ramfb) { - vdev->dpy->ramfb =3D ramfb_setup(errp); + vdev->dpy->ramfb =3D ramfb_setup(vdev->use_legacy_x86_rom, errp); if (!vdev->dpy->ramfb) { return false; } @@ -494,7 +494,7 @@ static bool vfio_display_region_init(VFIOPCIDevice *vde= v, Error **errp) &vfio_display_region_ops, vdev); if (vdev->enable_ramfb) { - vdev->dpy->ramfb =3D ramfb_setup(errp); + vdev->dpy->ramfb =3D ramfb_setup(vdev->use_legacy_x86_rom, errp); if (!vdev->dpy->ramfb) { return false; } diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index 7f1532fbed..ff0d93fae0 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -3564,6 +3564,7 @@ static const TypeInfo vfio_pci_dev_info =3D { =20 static const Property vfio_pci_dev_nohotplug_properties[] =3D { DEFINE_PROP_BOOL("ramfb", VFIOPCIDevice, enable_ramfb, false), + DEFINE_PROP_BOOL("use-legacy-x86-rom", VFIOPCIDevice, use_legacy_x86_r= om, true), DEFINE_PROP_ON_OFF_AUTO("x-ramfb-migrate", VFIOPCIDevice, ramfb_migrat= e, ON_OFF_AUTO_AUTO), }; diff --git a/hw/vfio/pci.h b/hw/vfio/pci.h index d94ecaba68..713956157e 100644 --- a/hw/vfio/pci.h +++ b/hw/vfio/pci.h @@ -177,6 +177,7 @@ struct VFIOPCIDevice { bool no_kvm_ioeventfd; bool no_vfio_ioeventfd; bool enable_ramfb; + bool use_legacy_x86_rom; OnOffAuto ramfb_migrate; bool defer_kvm_irq_routing; bool clear_parent_atomics_on_exit; diff --git a/include/hw/display/ramfb.h b/include/hw/display/ramfb.h index a7e0019144..172aa6dc89 100644 --- a/include/hw/display/ramfb.h +++ b/include/hw/display/ramfb.h @@ -6,7 +6,7 @@ /* ramfb.c */ typedef struct RAMFBState RAMFBState; void ramfb_display_update(QemuConsole *con, RAMFBState *s); -RAMFBState *ramfb_setup(Error **errp); +RAMFBState *ramfb_setup(bool romfile, Error **errp); =20 extern const VMStateDescription ramfb_vmstate; =20 --=20 2.40.1 From nobody Sat Nov 15 16:07:44 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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charset="utf-8" On arm64, it doesn't use the vgabios-ramfb.bin, so set the property "use-legacy-x86-rom" to false, thus the ramfb won't load the vgabios-ramfb.bin. This can mitigate the problem that on release version the qemu can't find the vgabios-ramfb.bin if it use the ramfb. Signed-off-by: Shaoqin Huang --- hw/arm/virt.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/hw/arm/virt.c b/hw/arm/virt.c index a96452f17a..5f94f7a2ca 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -38,6 +38,7 @@ #include "hw/arm/primecell.h" #include "hw/arm/virt.h" #include "hw/block/flash.h" +#include "hw/vfio/pci.h" #include "hw/vfio/vfio-calxeda-xgmac.h" #include "hw/vfio/vfio-amd-xgbe.h" #include "hw/display/ramfb.h" @@ -90,6 +91,8 @@ =20 static GlobalProperty arm_virt_compat[] =3D { { TYPE_VIRTIO_IOMMU_PCI, "aw-bits", "48" }, + { TYPE_RAMFB_DEVICE, "use-legacy-x86-rom", "false" }, + { TYPE_VFIO_PCI, "use-legacy-x86-rom", "false" }, }; static const size_t arm_virt_compat_len =3D G_N_ELEMENTS(arm_virt_compat); =20 --=20 2.40.1