Re: [PATCH 02/10] target/i386/tcg: Allow IRET from user mode to user mode with SMAP

On 7/9/24 23:29, Paolo Bonzini wrote: This fixes a bug wherein i386/tcg assumed an interrupt return using the IRET instruction was always returning from kernel mode to either kernel mode or user mode. This assumption is violated when IRET is used as a clever way to restore thread state, as for

[PATCH 02/10] target/i386/tcg: Allow IRET from user mode to user mode with SMAP

This fixes a bug wherein i386/tcg assumed an interrupt return using the IRET instruction was always returning from kernel mode to either kernel mode or user mode. This assumption is violated when IRET is used as a clever way to restore thread state, as for example in the dotnet runtime. There,