X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Finclude%2Fgeekos%2Fvmm_paging.h;h=5c7952bd0eadbed077f510725e50e36bf2a2ea52;hb=7acd54f8c3b30d118d56186a9c6506f21f85096d;hp=f18a4921394c2d0ce5eb4d7d7738939a31570c8f;hpb=f00afb80e44756d6f29f9b61fcc082d776adc6a5;p=palacios.git diff --git a/palacios/include/geekos/vmm_paging.h b/palacios/include/geekos/vmm_paging.h index f18a492..5c7952b 100644 --- a/palacios/include/geekos/vmm_paging.h +++ b/palacios/include/geekos/vmm_paging.h @@ -4,7 +4,7 @@ #include - +#include #include #include @@ -76,29 +76,30 @@ the host state in the vmcs before entering the guest. -#define MAX_PAGE_TABLE_ENTRIES 1024 -#define MAX_PAGE_DIR_ENTRIES 1024 +#define MAX_PTE32_ENTRIES 1024 +#define MAX_PDE32_ENTRIES 1024 + +#define MAX_PTE64_ENTRIES 512 +#define MAX_PDE64_ENTRIES 512 +#define MAX_PDPE64_ENTRIES 512 +#define MAX_PML4E64_ENTRIES 512 -#define MAX_PAGE_TABLE_ENTRIES_64 512 -#define MAX_PAGE_DIR_ENTRIES_64 512 -#define MAX_PAGE_DIR_PTR_ENTRIES_64 512 -#define MAX_PAGE_MAP_ENTRIES_64 512 +#define PDE32_INDEX(x) ((((uint_t)x) >> 22) & 0x3ff) +#define PTE32_INDEX(x) ((((uint_t)x) >> 12) & 0x3ff) -#define PAGE_DIRECTORY_INDEX(x) ((((uint_t)x) >> 22) & 0x3ff) -#define PAGE_TABLE_INDEX(x) ((((uint_t)x) >> 12) & 0x3ff) -#define PAGE_OFFSET(x) ((((uint_t)x) & 0xfff)) #define PAGE_ALIGNED_ADDR(x) (((uint_t) (x)) >> 12) #ifndef PAGE_ADDR #define PAGE_ADDR(x) (PAGE_ALIGNED_ADDR(x) << 12) #endif +#define PAGE_OFFSET(x) ((((uint_t)x) & 0xfff)) #define PAGE_POWER 12 -#define CR3_TO_PDE(cr3) (((ulong_t)cr3) & 0xfffff000) +#define CR3_TO_PDE32(cr3) (((ulong_t)cr3) & 0xfffff000) #define CR3_TO_PDPTRE(cr3) (((ulong_t)cr3) & 0xffffffe0) -#define CR3_TO_PML4E(cr3) (((ullong_t)cr3) & 0x000ffffffffff000) +#define CR3_TO_PML4E64(cr3) (((ullong_t)cr3) & 0x000ffffffffff000) #define VM_WRITE 1 #define VM_USER 2 @@ -107,7 +108,10 @@ the host state in the vmcs before entering the guest. #define VM_EXEC 0 -typedef struct pde { +/* PDE 32 bit PAGE STRUCTURES */ +typedef enum {NOT_PRESENT, PTE32, LARGE_PAGE} pde32_entry_type_t; + +typedef struct pde32 { uint_t present : 1; uint_t flags : 4; uint_t accessed : 1; @@ -116,9 +120,9 @@ typedef struct pde { uint_t global_page : 1; uint_t vmm_info : 3; uint_t pt_base_addr : 20; -} vmm_pde_t; +} pde32_t; -typedef struct pte { +typedef struct pte32 { uint_t present : 1; uint_t flags : 4; uint_t accessed : 1; @@ -127,39 +131,20 @@ typedef struct pte { uint_t global_page : 1; uint_t vmm_info : 3; uint_t page_base_addr : 20; -} vmm_pte_t; +} pte32_t; +/* ***** */ +/* 32 bit PAE PAGE STRUCTURES */ +// +// Fill in +// -typedef struct pte64 { - uint_t present : 1; - uint_t flags : 4; - uint_t accessed : 1; - uint_t dirty : 1; - uint_t pte_attr : 1; - uint_t global_page : 1; - uint_t vmm_info : 3; - uint_t page_base_addr_lo : 20; - uint_t page_base_addr_hi : 20; - uint_t available : 11; - uint_t no_execute : 1; -} pte64_t; +/* ********** */ -typedef struct pde64 { - uint_t present : 1; - uint_t flags : 4; - uint_t accessed : 1; - uint_t reserved : 1; - uint_t large_pages : 1; - uint_t reserved2 : 1; - uint_t vmm_info : 3; - uint_t pt_base_addr_lo : 20; - uint_t pt_base_addr_hi : 20; - uint_t available : 11; - uint_t no_execute : 1; -} pde64_t; -typedef struct pdpe64 { +/* LONG MODE 64 bit PAGE STRUCTURES */ +typedef struct pml4e64 { uint_t present : 1; uint_t writable : 1; uint_t user : 1; @@ -167,17 +152,16 @@ typedef struct pdpe64 { uint_t pcd : 1; uint_t accessed : 1; uint_t reserved : 1; - uint_t large_pages : 1; - uint_t zero : 1; + uint_t zero : 2; uint_t vmm_info : 3; - uint_t pd_base_addr_lo : 20; - uint_t pd_base_addr_hi : 20; + uint_t pdp_base_addr_lo : 20; + uint_t pdp_base_addr_hi : 20; uint_t available : 11; uint_t no_execute : 1; -} pdpe64_t; +} pml4e64_t; -typedef struct pml4e { +typedef struct pdpe64 { uint_t present : 1; uint_t writable : 1; uint_t user : 1; @@ -185,50 +169,73 @@ typedef struct pml4e { uint_t pcd : 1; uint_t accessed : 1; uint_t reserved : 1; - uint_t zero : 2; + uint_t large_pages : 1; + uint_t zero : 1; uint_t vmm_info : 3; - uint_t pdp_base_addr_lo : 20; - uint_t pdp_base_addr_hi : 20; + uint_t pd_base_addr_lo : 20; + uint_t pd_base_addr_hi : 20; uint_t available : 11; uint_t no_execute : 1; -} pml4e64_t; +} pdpe64_t; + + + + +typedef struct pde64 { + uint_t present : 1; + uint_t flags : 4; + uint_t accessed : 1; + uint_t reserved : 1; + uint_t large_pages : 1; + uint_t reserved2 : 1; + uint_t vmm_info : 3; + uint_t pt_base_addr_lo : 20; + uint_t pt_base_addr_hi : 20; + uint_t available : 11; + uint_t no_execute : 1; +} pde64_t; +typedef struct pte64 { + uint_t present : 1; + uint_t flags : 4; + uint_t accessed : 1; + uint_t dirty : 1; + uint_t pte_attr : 1; + uint_t global_page : 1; + uint_t vmm_info : 3; + uint_t page_base_addr_lo : 20; + uint_t page_base_addr_hi : 20; + uint_t available : 11; + uint_t no_execute : 1; +} pte64_t; + +/* *************** */ typedef enum { PDE32 } paging_mode_t; -typedef struct shadow_page_state { - // these two reflect the top-level page directory - // of the guest page table - paging_mode_t guest_mode; - reg_ex_t guest_cr3; // points to guest's current page table +pde32_t * create_passthrough_pde32_pts(guest_info_t * guest_info); + + +void delete_page_tables_pde32(pde32_t * pde); + + +pde32_entry_type_t pde32_lookup(pde32_t * pde, addr_t addr, addr_t * entry); +int pte32_lookup(pte32_t * pte, addr_t addr, addr_t * entry); - // Should thi sbe here - reg_ex_t guest_cr0; - // these two reflect the top-level page directory - // the shadow page table - paging_mode_t shadow_mode; - reg_ex_t shadow_cr3; -} shadow_page_state_t; -int init_shadow_page_state(shadow_page_state_t * state); -// This function will cause the shadow page table to be deleted -// and rewritten to reflect the guest page table and the shadow map -int wholesale_update_shadow_page_state(shadow_page_state_t * state, shadow_map_t * mem_map); -vmm_pde_t * create_passthrough_pde32_pts(shadow_map_t * map); +void PrintDebugPageTables(pde32_t * pde); -//void free_guest_page_tables(vmm_pde_t * pde); -void PrintDebugPageTables(vmm_pde_t * pde); #endif