The QEMU project is currently considering to move its bug tracking to another
system. For this we need to know which bugs are still valid and which could be
closed already. Thus we are setting older bugs to "Incomplete" now.
If you still think this bug report here is valid, then please switch the state
back to "New" within the next 60 days, otherwise this report will be marked as
"Expired". Or mark it as "Fix Released" if the problem has been solved with a
newer version of QEMU already. Thank you and sorry for the inconvenience.
** Changed in: qemu
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1759333
Title:
Illegal Instruction with HVF when encountering SSE instructions in the
emulator
Status in QEMU:
Incomplete
Bug description:
The latest version of QEMU doesn't seem to support emulated SSE instructions
with HVF acceleration on macOS.
The decoder will treat SSE instructions as invalid, get the instruction sizes
wrong and quickly crash the guest OS because of illegal instructions.
After having a quick look at target/i386/hvf/x86_decode.c, it seems that SSE
instruction emulation isn't implemented in the current version of the x86
emulator.
A way to reproduce the issue is to run a macOS 10.13 guest with HVF
acceleration enabled, this will crash in the guest once it's loading
up the GUI (and also print a "Unimplemented handler" warning from
target/i386/hvf/x86_emu.c).
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