[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] xen: arm: fully implement multicall interface.
On 04/01/2014 10:28 AM, Ian Campbell wrote: > On Tue, 2014-04-01 at 10:05 +0100, Julien Grall wrote: >> Out-of-context, I've noticed that most of trap failure will kill the >> domain. From the ARM ARM , if a coprocessor instruction is failing, we >> should generate an Undefined Instruction exception (see P.7.5). > > You mean HSR_EC_CP15_32, HSR_EC_CP15_64 and HSR_EC_SYSREG? > > I've not checked but I think we only ask for traps for things which we > are supposed to be able to handle, so anything which is trapped which we > can't handle is a bug and would indicate the guest doing something > funky. Right, but if the emulation of the instruction fails (see vtimer_emulate, do_trap_psci,...), Xen will destroy the domain instead of sending an UNDEF exception. -- Julien Grall _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |