From 9498e536c0231b808669f2bacb4c0628d1ec309a Mon Sep 17 00:00:00 2001 From: Gabe Black Date: Fri, 12 Oct 2007 16:37:55 -0700 Subject: X86: Implement MSR reads and writes and the wrsmr and rdmsr instructions. There are no priviledge checks, so these instructions will all work in all modes. --HG-- extra : convert_revision : ff893eb569313d8aecbfffb47bcbd1c2d65cd393 --- src/arch/x86/isa/microasm.isa | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'src/arch/x86/isa/microasm.isa') diff --git a/src/arch/x86/isa/microasm.isa b/src/arch/x86/isa/microasm.isa index c8bc36b69..50135e30c 100644 --- a/src/arch/x86/isa/microasm.isa +++ b/src/arch/x86/isa/microasm.isa @@ -106,6 +106,10 @@ let {{ assembler.symbols["riprel"] = \ ["1", assembler.symbols["t0"], assembler.symbols["t7"]] + # This segment selects an internal address space mapped to MSRs, + # CPUID info, etc. + assembler.symbols["intseg"] = "NUM_SEGMENTREGS" + for reg in ('ax', 'bx', 'cx', 'dx', 'sp', 'bp', 'si', 'di'): assembler.symbols["r%s" % reg] = "INTREG_R%s" % reg.upper() -- cgit v1.2.3