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hv: pgtable: move sanitize_pte into pagetable.c

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sanitize_pte is used to set page table entry to map to an sanitized page to
mitigate l1tf. It should belongs to pgtable module. So move it to pagetable.c

Tracked-On: #5830
Signed-off-by: Li Fei1 <fei1.li@intel.com>
This commit is contained in:
Li Fei1
2021-03-22 13:59:29 +08:00
committed by wenlingz
parent ef90bb6db3
commit d1ae797742
6 changed files with 33 additions and 29 deletions
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23
hypervisor/arch/x86/mmu.c
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@@ -194,24 +194,6 @@ void invept(const void *eptp)
}
}
static inline uint64_t get_sanitized_page(void)
{
return hva2hpa(sanitized_page);
}
void sanitize_pte_entry(uint64_t *ptep, const struct pgtable *table)
{
set_pgentry(ptep, get_sanitized_page(), table);
}
void sanitize_pte(uint64_t *pt_page, const struct pgtable *table)
{
uint64_t i;
for (i = 0UL; i < PTRS_PER_PTE; i++) {
sanitize_pte_entry(pt_page + i, table);
}
}
void enable_paging(void)
{
uint64_t tmp64 = 0UL;
@@ -306,6 +288,8 @@ void init_paging(void)
panic("Please configure HV_ADDRESS_SPACE correctly!\n");
}
init_sanitized_page((uint64_t *)sanitized_page, hva2hpa_early(sanitized_page));
/* Allocate memory for Hypervisor PML4 table */
ppt_mmu_pml4_addr = pgtable_create_root(&ppt_pgtable);
@@ -366,9 +350,6 @@ void init_paging(void)
/* Enable paging */
enable_paging();
/* set ptep in sanitized_page point to itself */
sanitize_pte((uint64_t *)sanitized_page, &ppt_pgtable);
}
/*