On Mon, Jan 09, 2012 at 09:10:10PM +0100, Kevin Wolf wrote:
> * This works with VMX, but with SVM I have an additional problem: When
> trying to exit VM86 (usually by an exception) through a task gate in
> the IDT, the code runs into the reason = TASK_SWITCH_CALL path. I
> searched a bit in the documentation, but didn't find any obvious way
> to fix this.
>
Hmm, so exit_int_info is invalid during task switch exit even though
task switch was caused by an exception. I wonder is this the case when
vcpu is not in vm86 mode too? For vm86 we can change:
else
reason = TASK_SWITCH_CALL;
to
else if (vcpu in vm86 mode)
reason = TASK_SWITCH_GATE;
else
reason = TASK_SWITCH_CALL;
IIRC you can't change tasks by call in vm86 mode.
--
Gleb.
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
