From: Gabe Black <gblack@eecs.umich.edu>
Date: Fri, 27 Feb 2009 17:25:43 +0000 (-0800)
Subject: X86: Implement sysenter as a system call interface.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c3d7d7ed0e3931d549a14ef8b32a1619861f3ef0;p=gem5.git

X86: Implement sysenter as a system call interface.
---

diff --git a/src/arch/x86/isa/decoder/two_byte_opcodes.isa b/src/arch/x86/isa/decoder/two_byte_opcodes.isa
index 64920bcbd..c3fb5c19d 100644
--- a/src/arch/x86/isa/decoder/two_byte_opcodes.isa
+++ b/src/arch/x86/isa/decoder/two_byte_opcodes.isa
@@ -420,7 +420,11 @@
                 0x1: Inst::RDTSC();
                 0x2: Inst::RDMSR();
                 0x3: rdpmc();
+#if FULL_SYSTEM
                 0x4: sysenter();
+#else
+                0x4: SyscallInst::sysenter('xc->syscall(Rax)', IsSyscall);
+#endif
                 0x5: sysexit();
                 0x6: Inst::UD2();
                 0x7: getsec();