Subversion Repositories Kolibri OS

        mov     ecx, MSR_AMD_EFER

        mov     ecx, MSR_AMD_EFER

        rdmsr

        rdmsr

        or      eax, 1 ; bit_0 - System Call Extension (SCE)

        or      eax, 1 ; bit_0 - System Call Extension (SCE)

        wrmsr

        wrmsr

        ; !!!! It`s dirty hack, fix it !!!

        ; !!!! FIXME: Hack, fix it !!!

        ; Bit 31–16 During the SYSRET instruction, this field is copied into the CS register

        ; Bit 31-16 During the SYSRET instruction, this field is copied into the CS register

        ; Bit 15–0 During the SYSCALL instruction, this field is copied into the CS register

        ; Bit 15-0 During the SYSCALL instruction, this field is copied into the CS register

        ;  and the contents of this field, plus 8, are copied into the SS register.

        ;  and the contents of this field, plus 8, are copied into the SS register.

.04:

.04:

;.wrmsr_instr:

;.wrmsr_instr:

;now counter in ecx

;now counter in ecx

;(edx:eax) esi:edi => edx:esi

;(edx:eax) esi:edi => edx:esi

        ; Fast Call MSR can't be destroy

        ; Fast Call MSR can't be destroy

        cmp     edx, MSR_SYSENTER_CS

        cmp     edx, MSR_SYSENTER_CS

        je      @f

        je      @f

        cmp     edx, MSR_SYSENTER_ESP

        cmp     edx, MSR_SYSENTER_ESP

        je      @f

        je      @f

        cmp     edx, MSR_SYSENTER_EIP

        cmp     edx, MSR_SYSENTER_EIP