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sandbox: vm: enforce alignment requirements for multi-page blocks

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max 🍓
2023-01-29 11:03:53 +00:00
parent d0341a5e35
commit a3c6018d96
3 changed files with 100 additions and 11 deletions
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11
sandbox/vm/include/socks/vm.h
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@@ -6,7 +6,11 @@
#include <socks/status.h>
#include <socks/queue.h>
#define VM_PAGE_SIZE 0x1000
#define VM_CHECK_ALIGN(p, mask) ((((p) & (mask)) == (p)) ? 1 : 0)
#define VM_PAGE_SIZE 0x1000
#define VM_PAGE_SHIFT 12
typedef phys_addr_t vm_alignment_t;
typedef struct vm_object {
unsigned int reserved;
@@ -39,6 +43,7 @@ typedef enum vm_page_order {
VM_PAGE_256M,
VM_PAGE_512M,
VM_PAGE_1G,
VM_PAGE_MIN_ORDER = VM_PAGE_4K,
VM_PAGE_MAX_ORDER = VM_PAGE_1G,
} vm_page_order_t;
@@ -96,6 +101,10 @@ extern kern_status_t vm_bootstrap(const vm_zone_descriptor_t *zones, size_t nr_z
extern void vm_page_init_array();
extern vm_page_t *vm_page_get(phys_addr_t addr);
extern size_t vm_page_order_to_bytes(vm_page_order_t order);
extern size_t vm_page_order_to_pages(vm_page_order_t order);
extern vm_alignment_t vm_page_order_to_alignment(vm_page_order_t order);
extern size_t vm_bytes_to_pages(size_t bytes);
extern void vm_zone_init(vm_zone_t *z, const char *name, uintptr_t base, uintptr_t limit);