diff options
Diffstat (limited to 'abi')
| -rw-r--r-- | abi/permission.h | 4 | ||||
| -rw-r--r-- | abi/syscall.h | 33 |
2 files changed, 34 insertions, 3 deletions
diff --git a/abi/permission.h b/abi/permission.h index 5ca56e0..10bc6a3 100644 --- a/abi/permission.h +++ b/abi/permission.h @@ -1,6 +1,8 @@ #ifndef JOVE_ABI_PERMISSION_H #define JOVE_ABI_PERMISSION_H 1 -#define PERM_MEMSRV 0 +#define PERM_MEM_PD 1 /* Permission to write to any PD. */ +#define PERM_MEM_MAP 2 /* Permission to map physical pages. */ +#define PERM_MEM_ALLOC 4 /* Permission to allocate and free physical memory.*/ #endif diff --git a/abi/syscall.h b/abi/syscall.h index 95cd4a5..54a67b9 100644 --- a/abi/syscall.h +++ b/abi/syscall.h @@ -1,6 +1,8 @@ #ifndef JOVE_ABI_SYSCALL_H #define JOVE_ABI_SYSCALL_H 1 +#include <stdint.h> + typedef struct syscall { int id; } syscall_t; @@ -10,15 +12,32 @@ struct syscall_log { const char *message; }; +struct syscall_tid { + syscall_t syscall; + intmax_t value; +}; + +struct syscall_mem_map { + syscall_t syscall; + uintptr_t phys; + uintptr_t virt; + intmax_t tid; +}; + enum { SYSCALL_LOG = 0, + SYSCALL_TID, + SYSCALL_MEM_MAP, SYSCALL_COUNT }; -#define _SYSCALL(data) __asm__ volatile("movq %0, %%rdi\nsyscall":: "r"(data)) +#define _SYSCALL(data) \ + intmax_t ax; \ + __asm__ volatile("movq %0, %%rdi\nsyscall": "=a"(ax): "r"(data): "memory"); \ + return ax -void _syscall_log(const char *message) { +int _syscall_log(const char *message) { struct syscall_log syscall_data = { .syscall = (syscall_t){ .id = SYSCALL_LOG }, .message = message @@ -26,4 +45,14 @@ void _syscall_log(const char *message) { _SYSCALL(&syscall_data); } +intmax_t _syscall_tid(void) { + syscall_t syscall_data = { SYSCALL_TID }; + _SYSCALL(&syscall_data); +} + +void __syscall_mem_map(uintptr_t phys, uintptr_t virt, intmax_t tid) +{ + +} + #endif |