Messages in this thread | | | Date | Sat, 26 May 2007 13:42:53 -0700 | From | "H. Peter Anvin" <> | Subject | Re: Extending boot protocol & bzImage for paravirt_ops |
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Rusty Russell wrote: >> >> + Bit 6 (write): KEEP_SEGMENTS >> + Protocol: 2.07+ >> + - if 0, reload the segment registers in the 32bit entry point. >> + - if 1, do not reload the segment registers in the 32bit entry point. >> + Assume that %cs %ds %ss %es are all set to flat segments with >> + a base of 0 (or the equivalent for their environment). > > You also want to skip the cli: perhaps a separate flag for this is > appropriate though. >
Do we have *any* environment that enters the 32-bit code with interrupts enabled? I would think that is unsafe no matter how you do it.
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