From patchwork Tue Jan 7 15:33:28 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 13929186 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C6024E7719A for ; Tue, 7 Jan 2025 15:34:52 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tVBap-00034k-DP; Tue, 07 Jan 2025 10:34:07 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tVBan-00034L-P2 for qemu-devel@nongnu.org; Tue, 07 Jan 2025 10:34:05 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tVBam-000524-CG for qemu-devel@nongnu.org; Tue, 07 Jan 2025 10:34:05 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1736264041; 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=UVhloq3ti9EHIyiQV/uSapzfpupxQNhfhuCF+psO+Wc=; b=O5Mrc5rHYed7e+k3t5MIH67oIr5IXhFicBCuI4d1cUvg1Fs3/zLqW2999VfvqCXDs7FZfF 28aChYVetJApCcY83Z3yi5p2PAgysh2toLQOghVP9zNFrpCJBCdYg9wKg0BCIYHimnos6D 9BWnavu1xZ5uQ3xi6Z0EAu1LISw+EmU= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-637-TR7RHDnjPZifxcD4rOp4IA-1; Tue, 07 Jan 2025 10:33:59 -0500 X-MC-Unique: TR7RHDnjPZifxcD4rOp4IA-1 X-Mimecast-MFC-AGG-ID: TR7RHDnjPZifxcD4rOp4IA Received: from mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.40]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 929181955E9C; Tue, 7 Jan 2025 15:33:57 +0000 (UTC) Received: from sirius.home.kraxel.org (unknown [10.39.192.66]) by mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id AF7E5195606B; Tue, 7 Jan 2025 15:33:55 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 77425180039D; Tue, 07 Jan 2025 16:33:53 +0100 (CET) From: Gerd Hoffmann To: qemu-devel@nongnu.org Cc: Gerd Hoffmann , graf@amazon.com, Paolo Bonzini , Michael Roth , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , =?utf-8?q?Phil?= =?utf-8?q?ippe_Mathieu-Daud=C3=A9?= , Thomas Huth , qemu-arm@nongnu.org, Eric Blake , Peter Maydell , Markus Armbruster , =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , Laszlo Ersek Subject: [PATCH v2 01/21] hw/uefi: add include/hw/uefi/var-service-api.h Date: Tue, 7 Jan 2025 16:33:28 +0100 Message-ID: <20250107153353.1144978-2-kraxel@redhat.com> In-Reply-To: <20250107153353.1144978-1-kraxel@redhat.com> References: <20250107153353.1144978-1-kraxel@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.40 Received-SPF: pass client-ip=170.10.129.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -24 X-Spam_score: -2.5 X-Spam_bar: -- X-Spam_report: (-2.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.437, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org This file defines the register interface of the uefi-vars device. It's only a handful of registers: magic value, command and status registers, location and size of the communication buffer. Signed-off-by: Gerd Hoffmann Reviewed-by: Laszlo Ersek --- include/hw/uefi/var-service-api.h | 40 +++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 include/hw/uefi/var-service-api.h diff --git a/include/hw/uefi/var-service-api.h b/include/hw/uefi/var-service-api.h new file mode 100644 index 000000000000..37fdab32741f --- /dev/null +++ b/include/hw/uefi/var-service-api.h @@ -0,0 +1,40 @@ +/* + * SPDX-License-Identifier: GPL-2.0-or-later + * + * uefi-vars device - API of the virtual device for guest/host communication. + */ +#ifndef QEMU_UEFI_VAR_SERVICE_API_H +#define QEMU_UEFI_VAR_SERVICE_API_H + + +/* isa: io range */ +#define UEFI_VARS_IO_BASE 0x520 + +/* sysbus: fdt node path */ +#define UEFI_VARS_FDT_NODE "qemu-uefi-vars" +#define UEFI_VARS_FDT_COMPAT "qemu,uefi-vars" + +/* registers */ +#define UEFI_VARS_REG_MAGIC 0x00 /* 16 bit */ +#define UEFI_VARS_REG_CMD_STS 0x02 /* 16 bit */ +#define UEFI_VARS_REG_BUFFER_SIZE 0x04 /* 32 bit */ +#define UEFI_VARS_REG_BUFFER_ADDR_LO 0x08 /* 32 bit */ +#define UEFI_VARS_REG_BUFFER_ADDR_HI 0x0c /* 32 bit */ +#define UEFI_VARS_REGS_SIZE 0x10 + +/* magic value */ +#define UEFI_VARS_MAGIC_VALUE 0xef1 + +/* command values */ +#define UEFI_VARS_CMD_RESET 0x01 +#define UEFI_VARS_CMD_MM 0x02 + +/* status values */ +#define UEFI_VARS_STS_SUCCESS 0x00 +#define UEFI_VARS_STS_BUSY 0x01 +#define UEFI_VARS_STS_ERR_UNKNOWN 0x10 +#define UEFI_VARS_STS_ERR_NOT_SUPPORTED 0x11 +#define UEFI_VARS_STS_ERR_BAD_BUFFER_SIZE 0x12 + + +#endif /* QEMU_UEFI_VAR_SERVICE_API_H */