[IMP] Moved source code into dev/ folder.

Signed-off-by: Amlal EL Mahrouss <amlalelmahrouss@icloud.com>

1 files changed, 81 insertions, 0 deletions

diff --git a/dev/Kernel/HALKit/AMD64/HalSMPCoreManager.asm b/dev/Kernel/HALKit/AMD64/HalSMPCoreManager.asm
new file mode 100644
index 00000000..3c53d49d
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalSMPCoreManager.asm
@@ -0,0 +1,81 @@
+;; /*
+;; *	========================================================
+;; *
+;; *	Kernel
+;; * 	Copyright ZKA Technologies., all rights reserved.
+;; *
+;; * 	========================================================
+;; */
+
+[bits 64]
+
+[global rt_get_current_context]
+[global rt_do_context_switch]
+[global _hal_spin_core]
+[extern _hal_switch_context]
+[extern _hal_leak_current_context]
+
+section .text
+
+;; writes to rdx the stackframe inside rcx.
+;; rcx: Stack Pointer
+;; rdx: SMP core address.
+rt_do_context_switch:
+    push rax
+    call _hal_switch_context
+    pop rax
+
+    ;; Now grab newly allocated process's stack frame.
+
+    push rax
+    call _hal_leak_current_context
+    mov rax, r9
+    pop rax
+
+    ;; Take care of context switching within AP.
+
+    mov r9, rax
+
+    mov rbp, [r9 + (8 * 5)]
+    mov rsp, [r9 + (8 * 6)]
+
+    mov gs,  [r9 + (8 * 19)]
+    mov fs,  [r9 + (8 * 20)]
+
+    mov rcx, [r9 + (8 * 3)]
+    mov rdx, [r9 + (8 * 4)]
+    mov rbx, [r9 + (8 * 7)]
+    mov rax, [r9 + (8 * 8)]
+    movq xmm0, [r9 + (8 * 9)]
+    movq xmm1, [r9 + (8 * 10)]
+
+    mov r8, [r9 + (8 * 11)]
+    mov r10, [r9 + (8 * 13)]
+    mov r11, [r9 + (8 * 14)]
+    mov r12, [r9 + (8 * 15)]
+    mov r13, [r9 + (8 * 16)]
+    mov r14, [r9 + (8 * 17)]
+    mov r15, [r9 + (8 * 18)]
+
+    fldcw word [r9 + (8 * 21)] 
+
+    mov r9, [r9 + (8 * 12)]
+
+    retfq 
+
+;; gets the current stack frame.
+rt_get_current_context:
+    push rax
+
+    call _hal_leak_current_context
+
+    mov rax, r9
+    pop rax
+
+    mov r9, rax
+
+    retfq
+
+_hal_spin_core:
+    jmp $
+    ret