[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Minios-devel] [PATCH v3 10/43] arm64: add exception support
On 28/04/2018 07:20, Huang Shijie wrote: On Wed, Apr 18, 2018 at 06:48:24PM +0100, Julien Grall wrote:+ save_registers 1 + mov x0, sp + mrs x1, esr_el1; + mrs x2, far_el1;Do you expect the mini-OS to always run with interrupt disabled in EL1? IfAt the beginning, we can run with interrupt disabled in EL1. It makes the code simple. :) The question is more what do you expect to run in that exception context. Would it ever be possible that the C-Code will re-enable interrupt and then you get caught later on? I am not necessarily asking you to enable the interrupt here. But you surely assess the impact of keeping interrupt disabled. Are they going to be enabled still for the thread (they run in EL1)? not, you may want to re-enable interrupt here.We can re-enable interrupt in future. Thanks Huang Shijie Cheers, -- Julien Grall _______________________________________________ Minios-devel mailing list Minios-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/minios-devel
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