Author: wmb Date: 2007-05-04 09:29:47 +0200 (Fri, 04 May 2007) New Revision: 354
Modified: cpu/x86/ioports.fth Log: Added MSR support to Linux-hosted I/O port access wordset.
Modified: cpu/x86/ioports.fth =================================================================== --- cpu/x86/ioports.fth 2007-05-04 07:28:03 UTC (rev 353) +++ cpu/x86/ioports.fth 2007-05-04 07:29:47 UTC (rev 354) @@ -64,6 +64,34 @@ dup -1 = abort" mmap failed" ; : munmap ( virt len -- ) mem-fd d# 384 syscall 2drop ; + +-1 value msr-fd +: ?open-msr ( -- ) + msr-fd 0< if + 2 " /dev/cpu/0/msr" $cstr 8 syscall 2drop retval to msr-fd + then + msr-fd 0< abort" Can't open /dev/cpu/0/msr" +; +8 buffer: msr-data +: msr-seek ( msr# -- ) ?open-msr msr-fd _fseek ; + +: msr@ ( msr# -- d ) + msr-seek + msr-data 8 msr-fd _fread 8 <> abort" Can't read MSR" + msr-data d@ +; +: msr! ( d msr# -- ) + msr-seek + msr-data d! + msr-data 8 msr-fd _fwrite 8 <> abort" Can't write MSR" +; +: .msr ( msr# -- ) + msr@ ( d ) + push-hex ( d ) + <# [char] . hold # # # # # # # # [char] . hold # # # # # # # # #> type ( ) + pop-base +; + \ LICENSE_BEGIN \ Copyright (c) 2006 FirmWorks \