From: Roger Pau Monne <roger.pau@citrix.com>
To: Jan Beulich <JBeulich@suse.com>
Cc: George Dunlap <george.dunlap@eu.citrix.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
boris.ostrovsky@oracle.com, xen-devel@lists.xenproject.org
Subject: Re: [PATCH v3.1 08/15] x86/vtd: fix mapping of RMRR regions
Date: Fri, 4 Nov 2016 17:19:59 +0100 [thread overview]
Message-ID: <20161104161959.or77b4ck457xqi54@mac> (raw)
In-Reply-To: <581CC1A4020000780011C5F2@prv-mh.provo.novell.com>
On Fri, Nov 04, 2016 at 10:13:08AM -0600, Jan Beulich wrote:
> >>> On 04.11.16 at 16:33, <roger.pau@citrix.com> wrote:
> > --- a/xen/include/asm-x86/p2m.h
> > +++ b/xen/include/asm-x86/p2m.h
> > @@ -834,6 +834,7 @@ static inline unsigned int p2m_get_iommu_flags(p2m_type_t p2mt)
> > case p2m_grant_map_rw:
> > case p2m_ram_logdirty:
> > case p2m_map_foreign:
> > + case p2m_mmio_direct:
> > flags = IOMMUF_readable | IOMMUF_writable;
> > break;
> > case p2m_ram_ro:
>
> Generally this may be the route to go. But if we want to do so, we
> need to throughly understand why this type wasn't included here
> before (and I don't know myself).
It was me that introduced p2m_get_iommu_flags, and I just didn't think it
would be useful at that point, that's why it wasn't included.
The patch that introduced p2m_get_iommu_flags was focused on fixing DMA'ing
from grant-pages on HVM guests with passed-through hardware, this was needed
for driver domains and later on by classic PVH Dom0
Roger.
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next prev parent reply other threads:[~2016-11-04 16:20 UTC|newest]
Thread overview: 89+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-29 8:59 [PATCH v3.1 00/15] Initial PVHv2 Dom0 support Roger Pau Monne
2016-10-29 8:59 ` [PATCH v3.1 01/15] xen/x86: remove XENFEAT_hvm_pirqs for PVHv2 guests Roger Pau Monne
2016-10-31 16:32 ` Jan Beulich
2016-11-03 12:35 ` Roger Pau Monne
2016-11-03 12:52 ` Jan Beulich
2016-11-03 14:25 ` Konrad Rzeszutek Wilk
2016-11-03 15:05 ` Roger Pau Monne
2016-11-03 14:22 ` Konrad Rzeszutek Wilk
2016-11-03 15:01 ` Roger Pau Monne
2016-11-03 15:43 ` Roger Pau Monne
2016-10-29 8:59 ` [PATCH v3.1 02/15] xen/x86: fix return value of *_set_allocation functions Roger Pau Monne
2016-10-29 22:11 ` Tim Deegan
2016-10-29 8:59 ` [PATCH v3.1 03/15] xen/x86: allow calling {sh/hap}_set_allocation with the idle domain Roger Pau Monne
2016-10-31 16:34 ` Jan Beulich
2016-11-01 10:45 ` Tim Deegan
2016-11-02 17:14 ` Roger Pau Monne
2016-11-03 10:20 ` Roger Pau Monne
2016-11-03 10:33 ` Tim Deegan
2016-11-03 11:31 ` Jan Beulich
2016-10-29 8:59 ` [PATCH v3.1 04/15] xen/x86: assert that local_events_need_delivery is not called by " Roger Pau Monne
2016-10-31 16:37 ` Jan Beulich
2016-10-29 8:59 ` [PATCH v3.1 05/15] x86/paging: introduce paging_set_allocation Roger Pau Monne
2016-10-31 16:42 ` Jan Beulich
2016-11-01 10:29 ` Tim Deegan
2016-10-29 8:59 ` [PATCH v3.1 06/15] xen/x86: split the setup of Dom0 permissions to a function Roger Pau Monne
2016-10-31 16:44 ` Jan Beulich
2016-10-29 8:59 ` [PATCH v3.1 07/15] xen/x86: do the PCI scan unconditionally Roger Pau Monne
2016-10-31 16:47 ` Jan Beulich
2016-11-03 10:58 ` Roger Pau Monne
2016-11-03 11:35 ` Jan Beulich
2016-11-03 11:54 ` Boris Ostrovsky
2016-11-29 12:33 ` Roger Pau Monne
2016-11-29 12:47 ` Jan Beulich
2016-11-29 12:57 ` Roger Pau Monne
2016-11-30 5:53 ` Tian, Kevin
2016-11-30 9:02 ` Jan Beulich
2016-10-29 8:59 ` [PATCH v3.1 08/15] x86/vtd: fix mapping of RMRR regions Roger Pau Monne
2016-11-04 9:16 ` Jan Beulich
2016-11-04 9:45 ` Roger Pau Monne
2016-11-04 10:34 ` Jan Beulich
2016-11-04 12:25 ` Roger Pau Monne
2016-11-04 12:53 ` Jan Beulich
2016-11-04 13:03 ` Roger Pau Monne
2016-11-04 13:16 ` Jan Beulich
2016-11-04 15:33 ` Roger Pau Monne
2016-11-04 16:13 ` Jan Beulich
2016-11-04 16:19 ` Roger Pau Monne [this message]
2016-11-04 17:08 ` Jan Beulich
2016-11-04 17:25 ` Roger Pau Monne
2016-11-07 8:36 ` Jan Beulich
2016-10-29 8:59 ` [PATCH v3.1 09/15] xen/x86: allow the emulated APICs to be enabled for the hardware domain Roger Pau Monne
2016-11-04 9:19 ` Jan Beulich
2016-11-04 9:47 ` Roger Pau Monne
2016-11-04 10:21 ` Jan Beulich
2016-11-04 12:09 ` Roger Pau Monne
2016-11-04 12:50 ` Jan Beulich
2016-11-04 13:06 ` Roger Pau Monne
2016-10-29 8:59 ` [PATCH v3.1 10/15] xen/x86: split Dom0 build into PV and PVHv2 Roger Pau Monne
2016-11-11 16:53 ` Jan Beulich
2016-11-16 18:02 ` Roger Pau Monne
2016-11-17 10:49 ` Jan Beulich
2016-11-28 17:49 ` Roger Pau Monne
2016-11-29 9:34 ` Jan Beulich
2016-10-29 8:59 ` [PATCH v3.1 11/15] xen/mm: introduce a function to map large chunks of MMIO Roger Pau Monne
2016-11-11 16:58 ` Jan Beulich
2016-11-29 12:41 ` Roger Pau Monne
2016-11-29 13:00 ` Jan Beulich
2016-11-29 15:32 ` Roger Pau Monne
2016-11-11 20:17 ` Konrad Rzeszutek Wilk
2016-10-29 8:59 ` [PATCH v3.1 12/15] xen/x86: populate PVHv2 Dom0 physical memory map Roger Pau Monne
2016-11-11 17:16 ` Jan Beulich
2016-11-28 11:26 ` Roger Pau Monne
2016-11-28 11:41 ` Jan Beulich
2016-11-28 13:30 ` Roger Pau Monne
2016-11-28 13:49 ` Jan Beulich
2016-11-28 16:02 ` Roger Pau Monne
2016-10-29 8:59 ` [PATCH v3.1 13/15] xen/x86: parse Dom0 kernel for PVHv2 Roger Pau Monne
2016-11-11 20:30 ` Konrad Rzeszutek Wilk
2016-11-28 12:14 ` Roger Pau Monne
2016-10-29 9:00 ` [PATCH v3.1 14/15] xen/x86: hack to setup PVHv2 Dom0 CPUs Roger Pau Monne
2016-10-29 9:00 ` [PATCH v3.1 15/15] xen/x86: setup PVHv2 Dom0 ACPI tables Roger Pau Monne
2016-11-14 16:15 ` Jan Beulich
2016-11-30 12:40 ` Roger Pau Monne
2016-11-30 14:09 ` Jan Beulich
2016-11-30 14:23 ` Roger Pau Monne
2016-11-30 16:38 ` Jan Beulich
2016-10-31 14:35 ` [PATCH v3.1 00/15] Initial PVHv2 Dom0 support Boris Ostrovsky
2016-10-31 14:43 ` Andrew Cooper
2016-10-31 16:35 ` Roger Pau Monne
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