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Add arch_hva2hpa_early/arch_hpa2hva_early to common, and wrap it in hva2hpa_early/hpa2hva_early. Tracked-On: #8831 Signed-off-by: hangliu1 <hang1.liu@intel.com> Reviewed-by: Liu, Yifan1 <yifan1.liu@intel.com> Acked-by: Wang, Yu1 <yu1.wang@intel.com>
43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
#include <asm/mmu.h>
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#include <asm/pgtable.h>
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uint64_t arch_pgtl_page_paddr(uint64_t pgtle)
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{
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return pgtle & PFN_MASK;
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}
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/**
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* @brief Check whether specified page table entry is pointing to huge page.
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*
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* PS(Page Size) flag indicates whether maps a 1-GByte page or 2MByte page or references a page directory table. This function
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* checks this flag. This function is typically used in the context of setting up or modifying page tables where it's
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* necessary to distinguish between large and regular page mappings.
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*
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* It returns the value that bit 7 is 1 if the specified pte maps a 1-GByte or 2MByte page, and 0 if references a page table.
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*
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* @param[in] pgtle The page directory pointer table entry to check.
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*
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* @return The value of PS flag in the PDPTE.
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*
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* @retval PAGE_PSE indicating mapping to a 1-GByte or 2MByte page.
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* @retval 0 indicating reference to a page directory table.
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*
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* @pre N/A
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*
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* @post N/A
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*/
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uint64_t arch_pgtl_large(uint64_t pgtle)
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{
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return pgtle & PAGE_PSE;
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}
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void *arch_hpa2hva_early(uint64_t x)
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{
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return (void *)x;
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}
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uint64_t arch_hva2hpa_early(void *x)
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{
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return (uint64_t)x;
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}
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