[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Nested events in 64bit mini-OS
On Sun, 2012-11-18 at 17:43 +0000, Samuel Thibault wrote: > > Correct me if I am wrong, I think hypercall_page is mapped at runtime to > > guest OS by Xen. It's not actually part of the critical section of guest OS, > > at least not at compile time. > > Sure. I meant it'd mean a second fixup table, but who knows what code is > there, it could be tampering with the stack. In practice it isn't. Since the hypercall page is a blackbox to the guest I don't think it is really reasonable for it to be messing with the stack without makings its own arrangements for correctness of nesting etc. Ian. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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