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Introduce concept of Process Resources (PR_MEM), implement necessary syscalls
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This commit is contained in:
Kamil Kowalczyk
2026-01-07 22:47:30 +01:00
parent 28aef30f77
commit d7b734306f
16 changed files with 451 additions and 50 deletions
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13
libmsl/m/mem.h
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@@ -1,13 +0,0 @@
#ifndef _LIBMSL_M_MEM_H
#define _LIBMSL_M_MEM_H
#if defined(__x86_64__)
#define M_PROC_MAP_BASE 0x0000700000000000
#define M_PAGE_SIZE 4096
#endif
#define PM_PRESENT (1 << 0)
#define PM_RW (1 << 1)
#define PM_USER (1 << 2)
#endif // _LIBMSL_M_MEM_H

13
libmsl/m/proc.c
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@@ -7,10 +7,19 @@ int m_proc_quit (void) { return m_syscall (SYS_PROC_QUIT, 0, 0, 0, 0, 0, 0); }
int m_proc_test (void) { return m_syscall (SYS_PROC_TEST, 0, 0, 0, 0, 0, 0); }
int m_proc_map (uintptr_t vaddr, size_t pages, uint32_t flags) {
return m_syscall (SYS_PROC_MAP, vaddr, (uintptr_t)pages, (uintptr_t)flags, 0, 0, 0);
int m_proc_map (uintptr_t paddr, uintptr_t vaddr, size_t pages, uint32_t flags) {
return m_syscall (SYS_PROC_MAP, paddr, vaddr, (uintptr_t)pages, (uintptr_t)flags, 0, 0);
}
int m_proc_unmap (uintptr_t vaddr, size_t pages) {
return m_syscall (SYS_PROC_UNMAP, vaddr, (uintptr_t)pages, 0, 0, 0, 0);
}
int m_proc_create_resource_mem (size_t pages, int vis, uintptr_t* out_paddr) {
return m_syscall (SYS_PROC_CREATE_RESOURCE_MEM, (uintptr_t)pages, (uintptr_t)vis,
(uintptr_t)out_paddr, 0, 0, 0);
}
int m_proc_drop_resource (int rid) {
return m_syscall (SYS_PROC_DROP_RESOURCE, (uintptr_t)rid, 0, 0, 0, 0, 0);
}

16
libmsl/m/proc.h
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@@ -1,12 +1,26 @@
#ifndef _LIBMSL_M_PROC_H
#define _LIBMSL_M_PROC_H
#if defined(__x86_64__)
#define M_PROC_MAP_BASE 0x0000700000000000
#define M_PAGE_SIZE 4096
#endif
#define PM_PRESENT (1 << 0)
#define PM_RW (1 << 1)
#define PM_USER (1 << 2)
#define RV_PRIVATE 0
#define RV_PUBLIC 1
#include <stddef.h>
#include <stdint.h>
int m_proc_quit (void);
int m_proc_test (void);
int m_proc_map (uintptr_t vaddr, size_t pages, uint32_t flags);
int m_proc_map (uintptr_t paddr, uintptr_t vaddr, size_t pages, uint32_t flags);
int m_proc_unmap (uintptr_t vaddr, size_t pages);
int m_proc_create_resource_mem (size_t pages, int vis, uintptr_t* out_paddr);
int m_proc_drop_resource (int rid);
#endif // _LIBMSL_M_PROC_H