From patchwork Fri May 26 01:07:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Masahisa Kojima X-Patchwork-Id: 686249 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1A6E5C77B7A for ; Fri, 26 May 2023 01:09:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233734AbjEZBJF (ORCPT ); Thu, 25 May 2023 21:09:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54248 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233245AbjEZBJE (ORCPT ); Thu, 25 May 2023 21:09:04 -0400 Received: from mail-pf1-x433.google.com (mail-pf1-x433.google.com [IPv6:2607:f8b0:4864:20::433]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5C4E2195 for ; Thu, 25 May 2023 18:09:02 -0700 (PDT) Received: by mail-pf1-x433.google.com with SMTP id d2e1a72fcca58-64d57cd373fso1192361b3a.1 for ; Thu, 25 May 2023 18:09:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1685063342; x=1687655342; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=G6VIqHMJjbPJ2+kSt8mFPdVYdMkgW/SzHqSQYoGPKEM=; b=xkKhKN48kdT1xEQO9pDlwjn0r0P+dC37CX6M4/10Wemi8mBIDIkcWf2e4DM2q+YPE+ X6XovLHQCa4E+htGX69AMhO01E/9P7T4rNuvR2vfkRrze0o04yQVncSEC7IR99yGZ0iZ G9H0VL1JZDLFrbqTFZ7hLgxJEuGQfM+D5JryYZ5AcYkPf5kglpAnEF2XsVUYwqhJnWJ3 RwaR5Vuq4hO7bT37euZS1dxA46QcJ5v/SHv0UDtMT7ewxHCOsFUV5rc459AyRNG3w5En usr/OHSlyt6gJBsBJDV6SwcAoiLtAQlOerBQequPnLgCLZWblRg9QBisHRlsdJRTntod EYIw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685063342; x=1687655342; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=G6VIqHMJjbPJ2+kSt8mFPdVYdMkgW/SzHqSQYoGPKEM=; b=O7R2nePXp/B9HNzlHXDu6jY/LBrbRp9/ZhuG7F33bbherjfb7wicH8IO3VfGyDzlzh ZLxXT9qMXZj9nxL+apNijuvK53d3dUtNAsVOZCTR7lBBeRPjJql9vDUh+JcTUtu3GeVj hR0vWO1OKMBDYCgSpK/B6ZEjMwO0u8g/34OL/qbgittzSiJAqLKbu3K9y93n1NZKGQqi HHMjjgvv81U+V3Pu7KLQzhCKLJ9xdQPDIa6lbcr1LriZf97PlM//7fi6DxTJdy5Tw6+v h76JhvVnFu89H2NarEQ/TplVECCrFY8Zx7mkkQJ3RR25vo6BtXOQotBLXdwfo9IBJ/nI 9/FQ== X-Gm-Message-State: AC+VfDyfMWR0GG435QZGbB+iw4Irc1YwagFGyCrVzjzB0mw9Z8ixleCB ZkPp4ssMy4+00XOnVdL6880Arg== X-Google-Smtp-Source: ACHHUZ4xD136A4qfcrhz8/rbZPWO4pmcOrd1euNJQ+2a5PC/YpAOFZ4vFjjhRc2bfBs8PP4X1prmIA== X-Received: by 2002:a05:6a20:548a:b0:10d:951f:58bd with SMTP id i10-20020a056a20548a00b0010d951f58bdmr140391pzk.19.1685063341787; Thu, 25 May 2023 18:09:01 -0700 (PDT) Received: from localhost ([164.70.16.189]) by smtp.gmail.com with ESMTPSA id fe22-20020a056a002f1600b0064d31ddb5e4sm1711436pfb.43.2023.05.25.18.09.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 May 2023 18:09:01 -0700 (PDT) From: Masahisa Kojima To: Ard Biesheuvel , Jens Wiklander , Sumit Garg , linux-kernel@vger.kernel.org, op-tee@lists.trustedfirmware.org Cc: Ilias Apalodimas , Johan Hovold , Masahisa Kojima , linux-efi@vger.kernel.org Subject: [PATCH v5 1/3] efi: expose efivar generic ops register function Date: Fri, 26 May 2023 10:07:45 +0900 Message-Id: <20230526010748.1222-2-masahisa.kojima@linaro.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20230526010748.1222-1-masahisa.kojima@linaro.org> References: <20230526010748.1222-1-masahisa.kojima@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-efi@vger.kernel.org This is a preparation for supporting efivar operations provided by other than efi subsystem. Both register and unregister functions are exposed so that non-efi subsystem can revert the efi generic operation. Acked-by: Sumit Garg Co-developed-by: Ilias Apalodimas Signed-off-by: Ilias Apalodimas Signed-off-by: Masahisa Kojima --- drivers/firmware/efi/efi.c | 12 ++++++++++++ include/linux/efi.h | 3 +++ 2 files changed, 15 insertions(+) diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c index d0dfa007bffc..d108cf03e19d 100644 --- a/drivers/firmware/efi/efi.c +++ b/drivers/firmware/efi/efi.c @@ -228,6 +228,18 @@ static void generic_ops_unregister(void) efivars_unregister(&generic_efivars); } +void efivars_generic_ops_register(void) +{ + generic_ops_register(); +} +EXPORT_SYMBOL_GPL(efivars_generic_ops_register); + +void efivars_generic_ops_unregister(void) +{ + generic_ops_unregister(); +} +EXPORT_SYMBOL_GPL(efivars_generic_ops_unregister); + #ifdef CONFIG_EFI_CUSTOM_SSDT_OVERLAYS #define EFIVAR_SSDT_NAME_MAX 16UL static char efivar_ssdt[EFIVAR_SSDT_NAME_MAX] __initdata; diff --git a/include/linux/efi.h b/include/linux/efi.h index bed3c92cbc31..b8ba9c5adc7a 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -1349,4 +1349,7 @@ bool efi_config_table_is_usable(const efi_guid_t *guid, unsigned long table) return xen_efi_config_table_is_usable(guid, table); } +void efivars_generic_ops_register(void); +void efivars_generic_ops_unregister(void); + #endif /* _LINUX_EFI_H */