 Home |
Products |
Support |
Community |
News |
xen-devel
[Xen-devel] [PATCH] Handle PoD case in hvm_hap_nested_page_fault()
| To: | xen-devel@xxxxxxxxxxxxxxxxxxx |
|---|---|
| Subject: | [Xen-devel] [PATCH] Handle PoD case in hvm_hap_nested_page_fault() |
| From: | George Dunlap <dunlapg@xxxxxxxxx> |
| Date: | Wed, 6 Jan 2010 12:19:37 +0000 |
| Delivery-date: | Wed, 06 Jan 2010 04:19:57 -0800 |
| Dkim-signature: | v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:date :x-google-sender-auth:message-id:subject:from:to:content-type; bh=Qg2g6aYZox7+xFILGJwqqj+xpInnkbmRrJn/bWlRDgA=; b=e/awqnK6F0AztpTX6IHfdIpIZ3fdcObMTig6YT4XhwOwG5xz99dvf9EvGf5KYl++6E YtxncGM4PiwaAO284pDSZQrZcdMMtLvBL8S+avM7lUdE9mF/iNvnwuA/Ou3Y70saptbj WWpagOuQKOPm3GEAros2Gn61C3AEiFO5QSLps= |
| Domainkey-signature: | a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:date:x-google-sender-auth:message-id:subject :from:to:content-type; b=VESkhVpUTiAi1l+flCwzYYen73P7ltdXHQ44WMj9/1mcUZ6IMaPpJC82nkeO/Dvrb0 Zn3fzeOFpHcv/KcEdjbJOOJwmokyvmKKsNAlYy+RzSYu9H0kZlh1ldIlxc4tOW9OUpOg kFV2TzVBY+yE73i0nXuC3ER3eQGD464/2ta38= |
| Envelope-to: | www-data@xxxxxxxxxxxxxxxxxxx |
| List-help: | <mailto:xen-devel-request@lists.xensource.com?subject=help> |
| List-id: | Xen developer discussion <xen-devel.lists.xensource.com> |
| List-post: | <mailto:xen-devel@lists.xensource.com> |
| List-subscribe: | <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe> |
| List-unsubscribe: | <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe> |
| Sender: | xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
The new combined nested page fault handling doesn't consider the case where the gfn_to_mfn() translation caused the page to be transparently populated. Attached patch is one solution; a more robust solution would be to take the access type (read or write) and check it against the type returned by gfn_to_mfn() to handle spurious NPFs as well (if such things ever happen). Signed-off-by: George Dunlap <george.dunlap@xxxxxxxxxxxxx>
_______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | Re: [Xen-devel] [PATCH] xend: passthrough: also do_FLR when a device is assigned, Stefano Stabellini |
|---|---|
| Next by Date: | Re: [Xen-devel] Porting SPICE to Xen, Stefano Stabellini |
| Previous by Thread: | [Xen-devel] A question about changeset 20621:f9392f6eda79 and Discontinuous online node, Jiang, Yunhong |
| Next by Thread: | Re: [Xen-devel] [PATCH] Handle PoD case in hvm_hap_nested_page_fault(), Keir Fraser |
| Indexes: | [Date] [Thread] [Top] [All Lists] |
