X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/04f32c3e67120f8498cdcf7926bab88e4e405258..ebb55b7e5f0b8f31328950ec383b77b208ffbb64:/lunaix-os/arch/x86/boot/x86_64/kremap64.c

diff --git a/lunaix-os/arch/x86/boot/x86_64/kremap64.c b/lunaix-os/arch/x86/boot/x86_64/kremap64.c
index ee9d298..bf3bb33 100644
--- a/lunaix-os/arch/x86/boot/x86_64/kremap64.c
+++ b/lunaix-os/arch/x86/boot/x86_64/kremap64.c
@@ -178,9 +178,12 @@ ptr_t boot_text
 remap_kernel()
 {
     ptr_t kmap_pa = to_kphysical(&kpt);
-    for (size_t i = 0; i < sizeof(kpt); i++) {
-        ((u8_t*)kmap_pa)[i] = 0;
-    }
+    
+    asm volatile("movq %1, %%rdi\n"
+                 "rep stosb\n" ::"c"(sizeof(kpt)),
+                 "r"(kmap_pa),
+                 "a"(0)
+                 : "rdi", "memory");
 
     do_remap();