From ace65b453151845bc361f21f3e5b651c35f9f126 Mon Sep 17 00:00:00 2001 From: Jon Santmyer Date: Wed, 22 May 2024 13:00:41 -0400 Subject: massive refactor for mp and organization --- include/arch/x86_64/page.h | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 include/arch/x86_64/page.h (limited to 'include/arch/x86_64/page.h') diff --git a/include/arch/x86_64/page.h b/include/arch/x86_64/page.h new file mode 100644 index 0000000..cbbf642 --- /dev/null +++ b/include/arch/x86_64/page.h @@ -0,0 +1,40 @@ +#ifndef _JOVE_x86_64_PAGE_H +#define _JOVE_x86_64_PAGE_H 1 + +#include +#include "klib/spinlock.h" +#include "assert.h" + +typedef union page_mapping_level_entry +{ + struct { + uint8_t p : 1; /* Present */ + uint8_t rw : 1; /* Read/write. 0 for RO.*/ + uint8_t us : 1; /* User/supervisor. 0 for DPL3 forbid */ + uint8_t pwt : 1; + uint8_t pcd : 1; + uint8_t a : 1; /* Accessed */ + uint8_t d : 1; /* Dirty */ + uint8_t ps_pat : 1; + uint8_t g : 1; /* Global */ + uint8_t _r0 : 2; + uint8_t r : 1; + uint64_t paddr : 35; + uint8_t _r1; + uint8_t pk : 4; + uint8_t xd : 1; + }__attribute__((packed)); + uint64_t value; +} __attribute__((packed)) pmle_t; + +typedef struct page_directory +{ + spinlock_t lock; + intmax_t id; + uintptr_t phys; + pmle_t *pml; +} page_directory_t; + +#define _kernel_virtual_base 0xFFFFFFFF80000000ULL + +#endif -- cgit v1.2.1