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For each TDVF sections, QEMU needs to copy the content to guest private memory via KVM API (KVM_TDX_INIT_MEM_REGION). Introduce a field @mem_ptr for TdxFirmwareEntry to track the memory pointer of each TDVF sections. So that QEMU can add/copy them to guest private memory later. TDVF sections can be classified into two groups: - Firmware itself, e.g., TDVF BFV and CFV, that located separately from guest RAM. Its memory pointer is the bios pointer. - Sections located at guest RAM, e.g., TEMP_MEM and TD_HOB. mmap a new memory range for them. Register a machine_init_done callback to do the stuff. Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Link: https://lore.kernel.org/r/20250508150002.689633-21-xiaoyao.li@intel.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
/*
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* Copyright (c) 2025 Intel Corporation
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* Author: Isaku Yamahata <isaku.yamahata at gmail.com>
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* <isaku.yamahata at intel.com>
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef HW_I386_TDVF_H
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#define HW_I386_TDVF_H
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#include "qemu/osdep.h"
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#define TDVF_SECTION_TYPE_BFV 0
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#define TDVF_SECTION_TYPE_CFV 1
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#define TDVF_SECTION_TYPE_TD_HOB 2
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#define TDVF_SECTION_TYPE_TEMP_MEM 3
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#define TDVF_SECTION_ATTRIBUTES_MR_EXTEND (1U << 0)
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#define TDVF_SECTION_ATTRIBUTES_PAGE_AUG (1U << 1)
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typedef struct TdxFirmwareEntry {
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uint32_t data_offset;
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uint32_t data_len;
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uint64_t address;
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uint64_t size;
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uint32_t type;
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uint32_t attributes;
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void *mem_ptr;
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} TdxFirmwareEntry;
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typedef struct TdxFirmware {
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void *mem_ptr;
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uint32_t nr_entries;
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TdxFirmwareEntry *entries;
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} TdxFirmware;
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#define for_each_tdx_fw_entry(fw, e) \
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for (e = (fw)->entries; e != (fw)->entries + (fw)->nr_entries; e++)
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int tdvf_parse_metadata(TdxFirmware *fw, void *flash_ptr, int size);
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#endif /* HW_I386_TDVF_H */
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