Re: [PATCH v6 1/2] x86/sev: Make sure IRQs are disabled while GHCB is active
From: Joerg Roedel <hidden>
Date: 2021-06-18 08:25:18
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On Thu, Jun 17, 2021 at 05:00:48PM +0200, Peter Zijlstra wrote:
I think this is broken, at this point RCU is quite dead on this CPU and local_irq_save/restore include tracing and all sorts. Also, shouldn't IRQs already be disabled by the time we get here?
Yes it is, I removed these calls, made __sev_get/put_ghcb() noinstr instead of __always_inline and put instrumentation_begin()/end() around the panic() call in __sev_get_ghcb(). Regards, Joerg _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization