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X86: Make syscall instructions non-speculative in SE.

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This commit is contained in:
Gabe Black 2010-10-22 00:23:50 -07:00
parent 29676286c8
commit 255685534a
2 changed files with 6 additions and 3 deletions
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3
src/arch/x86/isa/decoder/one_byte_opcodes.isa
View file

@ -402,7 +402,8 @@
// the first byte.
0x5: decode IMMEDIATE {
-0x80:
SyscallInst::int80('xc->syscall(Rax)', IsSyscall);
SyscallInst::int80('xc->syscall(Rax)',
IsSyscall, IsNonSpeculative);
default: int_Ib();
}
#endif

6
src/arch/x86/isa/decoder/two_byte_opcodes.isa
View file

@ -228,7 +228,8 @@
0x1: Inst::SYSCALL_LEGACY();
}
#else
0x05: SyscallInst::syscall('xc->syscall(Rax)', IsSyscall);
0x05: SyscallInst::syscall('xc->syscall(Rax)',
IsSyscall, IsNonSpeculative);
#endif
0x06: Inst::CLTS();
0x07: decode MODE_SUBMODE {
@ -404,7 +405,8 @@
#if FULL_SYSTEM
0x4: sysenter();
#else
0x4: SyscallInst::sysenter('xc->syscall(Rax)', IsSyscall);
0x4: SyscallInst::sysenter('xc->syscall(Rax)',
IsSyscall, IsNonSpeculative);
#endif
0x5: sysexit();
0x6: Inst::UD2();