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| -rw-r--r-- | include/VBox/vmm/pdmnvram.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/include/VBox/vmm/pdmnvram.h b/include/VBox/vmm/pdmnvram.h new file mode 100644 index 00000000..4876c2ea --- /dev/null +++ b/include/VBox/vmm/pdmnvram.h @@ -0,0 +1,125 @@ +/** @file + * PDM - Pluggable Device Manager, EFI NVRAM storage back-end. + */ + +/* + * Copyright (C) 2012-2020 Oracle Corporation + * + * This file is part of VirtualBox Open Source Edition (OSE), as + * available from http://www.virtualbox.org. This file is free software; + * you can redistribute it and/or modify it under the terms of the GNU + * General Public License (GPL) as published by the Free Software + * Foundation, in version 2 as it comes in the "COPYING" file of the + * VirtualBox OSE distribution. VirtualBox OSE is distributed in the + * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL) only, as it comes in the "COPYING.CDDL" file of the + * VirtualBox OSE distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + */ + +#ifndef VBOX_INCLUDED_vmm_pdmnvram_h +#define VBOX_INCLUDED_vmm_pdmnvram_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include <VBox/types.h> + + +RT_C_DECLS_BEGIN + +/** @defgroup grp_pdm_ifs_nvram NVRAM Interface + * @ingroup grp_pdm_interfaces + * @{ + */ + +/** Pointer to NVRAM interface provided by the driver. */ +typedef struct PDMINVRAMCONNECTOR *PPDMINVRAMCONNECTOR; + +/** + * Non-volatile RAM storage interface provided by the driver (up). + * + * @note The variable indexes used here 0-based, sequential and without gaps. + */ +typedef struct PDMINVRAMCONNECTOR +{ + /** + * Query a variable by variable index. + * + * @returns VBox status code. + * @retval VERR_NOT_FOUND if the variable was not found. This indicates that + * there are not variables with a higher index. + * + * @param pInterface Pointer to this interface structure. + * @param idxVariable The variable index. By starting @a idxVariable at 0 + * and increasing it with each call, this can be used + * to enumerate all available variables. + * @param pVendorUuid The vendor UUID of the variable. + * @param pszName The variable name buffer. + * @param pcchName On input this hold the name buffer size (including + * the space for the terminator char). On successful + * return it holds the strlen() value for @a pszName. + * @param pfAttributes Where to return the value attributes. + * @param pbValue The value buffer. + * @param pcbValue On input the size of the value buffer, on output the + * actual number of bytes returned. + */ + DECLR3CALLBACKMEMBER(int, pfnVarQueryByIndex,(PPDMINVRAMCONNECTOR pInterface, uint32_t idxVariable, + PRTUUID pVendorUuid, char *pszName, uint32_t *pcchName, + uint32_t *pfAttributes, uint8_t *pbValue, uint32_t *pcbValue)); + + /** + * Begins variable store sequence. + * + * @returns VBox status code. + * @param pInterface Pointer to this interface structure. + * @param cVariables The number of variables. + */ + DECLR3CALLBACKMEMBER(int, pfnVarStoreSeqBegin,(PPDMINVRAMCONNECTOR pInterface, uint32_t cVariables)); + + /** + * Puts the next variable in the store sequence. + * + * @returns VBox status code. + * @param pInterface Pointer to this interface structure. + * @param idxVariable The variable index. This will start at 0 and advance + * up to @a cVariables - 1. + * @param pVendorUuid The vendor UUID of the variable. + * @param pszName The variable name buffer. + * @param cchName On input this hold the name buffer size (including + * the space for the terminator char). On successful + * return it holds the strlen() value for @a pszName. + * @param fAttributes The value attributes. + * @param pbValue The value buffer. + * @param cbValue On input the size of the value buffer, on output the + * actual number of bytes returned. + */ + DECLR3CALLBACKMEMBER(int, pfnVarStoreSeqPut,(PPDMINVRAMCONNECTOR pInterface, int idxVariable, + PCRTUUID pVendorUuid, const char *pszName, size_t cchName, + uint32_t fAttributes, uint8_t const *pbValue, size_t cbValue)); + + /** + * Ends a variable store sequence. + * + * @returns VBox status code, @a rc on success. + * @param pInterface Pointer to this interface structure. + * @param rc The VBox status code for the whole store operation. + */ + DECLR3CALLBACKMEMBER(int, pfnVarStoreSeqEnd,(PPDMINVRAMCONNECTOR pInterface, int rc)); + +} PDMINVRAMCONNECTOR; +/** PDMINVRAMCONNECTOR interface ID. */ +#define PDMINVRAMCONNECTOR_IID "057bc5c9-8022-43a8-9a41-0b106f97a89f" + +/** @} */ + +RT_C_DECLS_END + +#endif /* !VBOX_INCLUDED_vmm_pdmnvram_h */ + |