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| author | Gabe Black <gblack@eecs.umich.edu> | 2008-10-12 23:05:22 -0700 |
|---|---|---|
| committer | Gabe Black <gblack@eecs.umich.edu> | 2008-10-12 23:05:22 -0700 |
| commit | e3004c579fcd7c3f34dfcbd90169c5aa9218a65b (patch) | |
| tree | b936d53aaef92a4dea7e47625f9e22d1771de0ce /src/arch | |
| parent | 349a155b6e38c128f155b1c83d9f11e73f6e8673 (diff) | |
| download | gem5-e3004c579fcd7c3f34dfcbd90169c5aa9218a65b.tar.xz | |
X86: Fix the segment setting code in IRET, and make it restore the flags.
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/x86/isa/insts/general_purpose/control_transfer/interrupts_and_exceptions.py | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/arch/x86/isa/insts/general_purpose/control_transfer/interrupts_and_exceptions.py b/src/arch/x86/isa/insts/general_purpose/control_transfer/interrupts_and_exceptions.py index 125866ce5..57bc13698 100644 --- a/src/arch/x86/isa/insts/general_purpose/control_transfer/interrupts_and_exceptions.py +++ b/src/arch/x86/isa/insts/general_purpose/control_transfer/interrupts_and_exceptions.py @@ -190,8 +190,8 @@ processSSDescriptor: # This actually updates state which is wrong. It should wait until we know # we're not going to fault. Unfortunately, that's hard to do. - wrdl cs, t7, t2 - wrsel cs, t2 + wrdl ss, t7, t2 + wrsel ss, t2 ### ### From this point downwards, we can't fault. We can update user visible state. @@ -224,6 +224,7 @@ skipSegmentSquashing: # Ignore this for now. #RFLAGS.v = temp_RFLAGS + wrflags t0, t3 # VIF,VIP,IOPL only changed if (old_CPL = 0) # IF only changed if (old_CPL <= old_RFLAGS.IOPL) # VM unchanged |