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Tue, 11 Feb 2025 10:23:25 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1739265846; 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=t3JGnByaULko5s3TrMphw9I/6+/M5NwhjAWDR8JTbp8=; b=hI71h+DrLrCsOmD2DuFlb0jkuUDQpt7U70M2SPT7VEAvaTcPhRY35oBOSvhRzn+KxMWmM3 DB8nbF02PmqSNKpf7EJLhmgcUI+u34KshJg+0QE5K3Lpb3/zvBHI0sXpz43fa1TiZs6RRZ HztEUzgqGEPfxHrwehhLbdrlgugVlMI= X-MC-Unique: _wcqeyWeMHqaGxD9wXAMEA-1 X-Mimecast-MFC-AGG-ID: _wcqeyWeMHqaGxD9wXAMEA From: Gerd Hoffmann To: qemu-devel@nongnu.org Cc: Gerd Hoffmann , graf@amazon.com, Eric Blake , Peter Maydell , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Thomas Huth , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , qemu-arm@nongnu.org, Michael Roth , Markus Armbruster , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Ard Biesheuvel Subject: [PATCH v3 21/23] hw/uefi-vars-isa: add acpi device Date: Tue, 11 Feb 2025 10:23:19 +0100 Message-ID: <20250211092324.965440-22-kraxel@redhat.com> In-Reply-To: <20250211092324.965440-1-kraxel@redhat.com> References: <20250211092324.965440-1-kraxel@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 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" Tell the guest OS the io address range is used. Shows up in /proc/ioports in linux. Signed-off-by: Gerd Hoffmann --- hw/uefi/var-service-isa.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/hw/uefi/var-service-isa.c b/hw/uefi/var-service-isa.c index 8247b9ae054a..24d1cae1bb19 100644 --- a/hw/uefi/var-service-isa.c +++ b/hw/uefi/var-service-isa.c @@ -6,6 +6,7 @@ #include "qemu/osdep.h" #include "migration/vmstate.h" =20 +#include "hw/acpi/acpi_aml_interface.h" #include "hw/isa/isa.h" #include "hw/qdev-properties.h" =20 @@ -61,12 +62,32 @@ static void uefi_vars_isa_realize(DeviceState *dev, Err= or **errp) uefi_vars_realize(&uv->state, errp); } =20 +static void uefi_vars_isa_build_aml(AcpiDevAmlIf *adev, Aml *scope) +{ + Aml *dev; + Aml *crs; + + crs =3D aml_resource_template(); + aml_append(crs, aml_io(AML_DECODE16, + UEFI_VARS_IO_BASE, UEFI_VARS_IO_BASE, + 0x00, UEFI_VARS_REGS_SIZE)); + + dev =3D aml_device("QEFI"); + aml_append(dev, aml_name_decl("_HID", aml_string("UEFIVARS"))); + aml_append(dev, aml_name_decl("_STA", aml_int(0xb))); + aml_append(dev, aml_name_decl("_CRS", crs)); + + aml_append(scope, dev); +} + static void uefi_vars_isa_class_init(ObjectClass *klass, void *data) { DeviceClass *dc =3D DEVICE_CLASS(klass); + AcpiDevAmlIfClass *adevc =3D ACPI_DEV_AML_IF_CLASS(klass); =20 dc->realize =3D uefi_vars_isa_realize; dc->vmsd =3D &vmstate_uefi_vars_isa; + adevc->build_dev_aml =3D uefi_vars_isa_build_aml; device_class_set_legacy_reset(dc, uefi_vars_isa_reset); device_class_set_props(dc, uefi_vars_isa_properties); set_bit(DEVICE_CATEGORY_MISC, dc->categories); @@ -78,6 +99,10 @@ static const TypeInfo uefi_vars_isa_info =3D { .instance_size =3D sizeof(uefi_vars_isa_state), .instance_init =3D uefi_vars_isa_init, .class_init =3D uefi_vars_isa_class_init, + .interfaces =3D (InterfaceInfo[]) { + { TYPE_ACPI_DEV_AML_IF }, + { }, + }, }; module_obj(TYPE_UEFI_VARS_ISA); module_dep("hw-uefi-vars"); --=20 2.48.1