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使mm支持4K虚拟地址映射

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This commit is contained in:
fslongjin
2022-07-18 16:07:34 +08:00
parent 8b6489dac3
commit aa3f433cd5
10 changed files with 335 additions and 111 deletions
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2
kernel/driver/disk/ahci/ahci.c
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@ -43,7 +43,7 @@ void ahci_init()
kdebug("((struct pci_device_structure_general_device_t *)phys_2_virt(ahci_devs[0])))->BAR5= %#018lx", ((struct pci_device_structure_general_device_t *)(ahci_devs[0]))->BAR5);
uint32_t bar5 = ((struct pci_device_structure_general_device_t *)(ahci_devs[0]))->BAR5;
mm_map_phys_addr(AHCI_MAPPING_BASE, (ul)(bar5)&PAGE_2M_MASK, PAGE_2M_SIZE, PAGE_KERNEL_PAGE | PAGE_PWT | PAGE_PCD);
mm_map_phys_addr(AHCI_MAPPING_BASE, (ul)(bar5)&PAGE_2M_MASK, PAGE_2M_SIZE, PAGE_KERNEL_PAGE | PAGE_PWT | PAGE_PCD, false);
kdebug("ABAR mapped!");
for (int i = 0; i < count_ahci_devices; ++i)
{