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Tue, 11 Feb 2025 10:23:24 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1739265818; 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=gJaSPb7gfbnadCP+GMf4rYegA4/fNW+xCFRBmeaAkT0=; b=QpUXGRATeAwFZ5pPCY38ZgjrLQ/zTtjTuQ+dqVsyur7/RJy8XYUA4LMoe0TZwGTHyOOPII 94p27v41Idzqa7iXZ3NuIQXz2HerA5Sc+nibyZbFjp2GukiHoD/TOsnest0ZsPKP8igpUq ibUG1BDzkNkAgwR6DWvK+kiKGsYrmRk= X-MC-Unique: WCdE3eZOMpacvAAiiW2vlg-1 X-Mimecast-MFC-AGG-ID: WCdE3eZOMpacvAAiiW2vlg 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 , Laszlo Ersek Subject: [PATCH v3 01/23] hw/uefi: add include/hw/uefi/var-service-api.h Date: Tue, 11 Feb 2025 10:22:59 +0100 Message-ID: <20250211092324.965440-2-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" 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 | 43 +++++++++++++++++++++++++++++++ 1 file changed, 43 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-servic= e-api.h new file mode 100644 index 000000000000..6765925d9ed0 --- /dev/null +++ b/include/hw/uefi/var-service-api.h @@ -0,0 +1,43 @@ +/* + * SPDX-License-Identifier: GPL-2.0-or-later + * + * uefi-vars device - API of the virtual device for guest/host communicati= on. + */ +#ifndef QEMU_UEFI_VAR_SERVICE_API_H +#define QEMU_UEFI_VAR_SERVICE_API_H + +/* isa: io range */ +#define UEFI_VARS_IO_BASE 0x520 + +/* qom: device names */ +#define TYPE_UEFI_VARS_ISA "uefi-vars-isa" +#define TYPE_UEFI_VARS_SYSBUS "uefi-vars-sysbus" + +/* 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 */ --=20 2.48.1