working userland with some invoke syscalls

1 files changed, 66 insertions, 0 deletions

diff --git a/include/arch/x86_64/processor.h b/include/arch/x86_64/processor.h
new file mode 100644
index 0000000..f8a93ce
--- /dev/null
+++ b/include/arch/x86_64/processor.h
@@ -0,0 +1,66 @@
+#ifndef _JOVE_ARCH_x86_64_PROCESSOR_H
+#define _JOVE_ARCH_x86_64_PROCESSOR_H 1
+
+#include "memory.h"
+#include "tables.h"
+#include "object.h"
+#include <stdint.h>
+
+#define MSR_FS_BASE 0xC0000100
+#define MSR_GS_BASE 0xC0000101
+#define MSR_KGS_BASE 0xC0000102
+
+#define MSR_EFER 0xC0000080
+#define MSR_STAR 0xC0000081
+#define MSR_LSTAR 0xC0000082
+#define MSR_SFMASK 0xC0000084
+
+typedef struct jove_TSS
+{
+    uint32_t resv0;
+    uint64_t rsp[3];
+    uint32_t resv1;
+    uint64_t ist[8];
+    uint32_t resv2[2];
+    uint16_t resv3;
+    uint16_t iopb;
+} tss_t;
+
+enum
+{
+    GDT_ENTRY_KERNEL_NULL = 0,
+    GDT_ENTRY_KERNEL_CODE,
+    GDT_ENTRY_KERNEL_DATA,
+    GDT_ENTRY_USER_NULL,
+    GDT_ENTRY_USER_DATA,
+    GDT_ENTRY_USER_CODE,
+    GDT_ENTRY_TSS_LOW,
+    GDT_ENTRY_TSS_HIGH,
+    GDT_ENTRY_COUNT
+};
+
+typedef struct jove_Processor
+{
+    physptr_t pdir;
+    struct jove_ObjectDirectory *odir;
+
+    segment_descriptor_t gdt[GDT_ENTRY_COUNT];
+    struct {
+        uint16_t length;
+        uint64_t base;
+    } __attribute__((packed)) gdtr;
+    struct {
+        uint16_t length;
+        uint64_t base;
+    } __attribute__((packed)) idtr;
+
+    tss_t tss;
+    tcb_t *tcb;
+} processor_t;
+
+void gdt_setup(processor_t *processor);
+
+void rdmsr(uint32_t msr, uint32_t *lo, uint32_t *hi);
+void wrmsr(uint32_t msr, uint32_t lo, uint32_t hi);
+
+#endif