From: David Vrabel <david.vrabel@citrix.com>
To: <xen-devel@lists.xenproject.org>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
<linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
<x86@kernel.org>, Mel Gorman <mgorman@suse.de>
Subject: Re: [PATCHv6 0/9] x86/xen: fixes for mapping high MMIO regions (and remove _PAGE_IOMAP)
Date: Thu, 15 May 2014 16:30:12 +0100 [thread overview]
Message-ID: <5374DD84.20904@citrix.com> (raw)
In-Reply-To: <1397571337-20409-1-git-send-email-david.vrabel@citrix.com>
On 15/04/14 15:15, David Vrabel wrote:
> This a fix for the problems with mapping high MMIO regions in certain
> cases (e.g., the RDMA drivers) as not all mappers were specifing
> _PAGE_IOMAP which meant no valid MFN could be found and the resulting
> PTEs would be set as not present, causing subsequent faults.
I've applied patches #1 to #6 to devel/for-linus-3.16. These fix the
bug. Patches #7 to #9 remove _PAGE_IOMAP but depend on an x86 change
which is not yet acked and I'm not going to delay (again) the bug fix
for this.
David
prev parent reply other threads:[~2014-05-15 15:30 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-15 14:15 [PATCHv6 0/9] x86/xen: fixes for mapping high MMIO regions (and remove _PAGE_IOMAP) David Vrabel
2014-04-15 14:15 ` [PATCH 1/9] x86/xen: rename early_p2m_alloc() and early_p2m_alloc_middle() David Vrabel
2014-04-15 14:15 ` [PATCH 2/9] x86/xen: fix set_phys_range_identity() if pfn_e > MAX_P2M_PFN David Vrabel
2014-04-15 14:15 ` [PATCH 3/9] x86/xen: compactly store large identity ranges in the p2m David Vrabel
2014-04-15 14:15 ` [PATCH 4/9] x86/xen: only warn once if bad MFNs are found during setup David Vrabel
2014-04-15 14:15 ` [PATCH 5/9] x86/xen: set regions above the end of RAM as 1:1 David Vrabel
2014-04-15 14:15 ` [PATCH 6/9] x86/xen: do not use _PAGE_IOMAP in xen_remap_domain_mfn_range() David Vrabel
2014-04-15 14:15 ` [PATCH 7/9] x86: skip check for spurious faults for non-present faults David Vrabel
2014-04-30 12:41 ` David Vrabel
2014-05-15 18:42 ` H. Peter Anvin
2014-05-15 19:22 ` [Xen-devel] " Keir Fraser
2014-05-15 19:51 ` H. Peter Anvin
2014-04-15 14:15 ` [PATCH 8/9] x86/xen: do not use _PAGE_IOMAP PTE flag for I/O mappings David Vrabel
2014-04-15 14:15 ` [PATCH 9/9] x86: remove the Xen-specific _PAGE_IOMAP PTE flag David Vrabel
2014-05-15 15:30 ` David Vrabel [this message]
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