Re: [v4 01/16] KVM: Extend struct pi_desc for VT-d Posted-Interrupts

From	Paolo Bonzini <pbonzini@redhat.com>
Newsgroups	linux.kernel
Subject	Re: [v4 01/16] KVM: Extend struct pi_desc for VT-d Posted-Interrupts
Date	2015-06-24 10:50 +0200
Message-ID	<pEOxB-4Lc-25@gated-at.bofh.it> (permalink)
References	<pA8wV-3OV-5@gated-at.bofh.it> <pA8wX-3OV-47@gated-at.bofh.it> <pEyM9-79p-11@gated-at.bofh.it> <pELJo-JT-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw


On 24/06/2015 07:42, Wu, Feng wrote:
> Do you mean we don't use bitfields at all, or the following format is
> acceptable, in which, we use bitfileds as less as possible?

>     union {
>         struct
>         {
>         u16 on     : 1,  /* bit 256 - Outstanding Notification */
>             sn     : 1,  /* bit 257 - Suppress Notification */
>             rsvd_1 : 14; /* bit 271:258 - Reserved */
>         u8  nv;          /* bit 279:272 - Notification Vector */
>         u8  rsvd_2;      /* bit 287:280 - Reserved */
>         u32 ndst;        /* bit 319:288 - Notification Destination */
>         };
>         u64 control;

This is okay.

Paolo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

Re: [v4 01/16] KVM: Extend struct pi_desc for VT-d Posted-Interrupts Paolo Bonzini <pbonzini@redhat.com> - 2015-06-24 10:50 +0200

csiph-web