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https://github.com/projectacrn/acrn-hypervisor.git
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bd1c0838d1
The previous would reserve memory for trusty in SOS kernel. Howerer, there would no available 16 MB continue memory any more after a long time. This result in allocating memory for trusty failed. This patch will reserve memory for trusty in ACRN hypervisor in which case the memory allocation for trusty will never fail. Tracked-On: #1942 Signed-off-by: Li, Fei1 <fei1.li@intel.com>
69 lines
2.2 KiB
C
69 lines
2.2 KiB
C
/*
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* Copyright (C) 2018 Intel Corporation. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef PAGE_H
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#define PAGE_H
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#define PAGE_SHIFT 12U
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#define PAGE_SIZE (1UL << PAGE_SHIFT)
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/* size of the low MMIO address space: 2GB */
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#define PLATFORM_LO_MMIO_SIZE 0x80000000UL
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#define PML4_PAGE_NUM(size) 1UL
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#define PDPT_PAGE_NUM(size) (((size) + PML4E_SIZE - 1UL) >> PML4E_SHIFT)
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#define PD_PAGE_NUM(size) (((size) + PDPTE_SIZE - 1UL) >> PDPTE_SHIFT)
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#define PT_PAGE_NUM(size) (((size) + PDE_SIZE - 1UL) >> PDE_SHIFT)
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/* The size of the guest physical address space, covered by the EPT page table of a VM */
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#define EPT_ADDRESS_SPACE(size) ((size != 0UL) ? (size + PLATFORM_LO_MMIO_SIZE) : 0UL)
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#define TRUSTY_PML4_PAGE_NUM(size) (1UL)
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#define TRUSTY_PDPT_PAGE_NUM(size) (1UL)
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#define TRUSTY_PD_PAGE_NUM(size) (PD_PAGE_NUM(size))
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#define TRUSTY_PT_PAGE_NUM(size) (PT_PAGE_NUM(size))
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#define TRUSTY_PGTABLE_PAGE_NUM(size) \
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(TRUSTY_PML4_PAGE_NUM(size) + TRUSTY_PDPT_PAGE_NUM(size) + TRUSTY_PD_PAGE_NUM(size) + TRUSTY_PT_PAGE_NUM(size))
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struct page {
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uint8_t contents[PAGE_SIZE];
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} __aligned(PAGE_SIZE);
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union pgtable_pages_info {
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struct {
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struct page *pml4_base;
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struct page *pdpt_base;
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struct page *pd_base;
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struct page *pt_base;
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} ppt;
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struct {
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uint64_t top_address_space;
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struct page *nworld_pml4_base;
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struct page *nworld_pdpt_base;
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struct page *nworld_pd_base;
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struct page *nworld_pt_base;
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struct page *sworld_pgtable_base;
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struct page *sworld_memory_base;
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} ept;
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};
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struct memory_ops {
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union pgtable_pages_info *info;
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uint64_t (*get_default_access_right)(void);
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uint64_t (*pgentry_present)(uint64_t pte);
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struct page *(*get_pml4_page)(const union pgtable_pages_info *info, uint64_t gpa);
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struct page *(*get_pdpt_page)(const union pgtable_pages_info *info, uint64_t gpa);
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struct page *(*get_pd_page)(const union pgtable_pages_info *info, uint64_t gpa);
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struct page *(*get_pt_page)(const union pgtable_pages_info *info, uint64_t gpa);
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void *(*get_sworld_memory_base)(const union pgtable_pages_info *info);
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};
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extern const struct memory_ops ppt_mem_ops;
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void init_ept_mem_ops(struct acrn_vm *vm);
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void *get_reserve_sworld_memory_base(void);
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#endif /* PAGE_H */
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