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[Xen-devel] [PATCH 5/5] svm: implement INVLPG part of DecodeAssist
| To: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [PATCH 5/5] svm: implement INVLPG part of DecodeAssist |
| From: | Andre Przywara <andre.przywara@xxxxxxx> |
| Date: | Fri, 15 Apr 2011 14:24:28 +0200 |
| Cc: | xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Fri, 15 Apr 2011 05:29:42 -0700 |
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Newer SVM implementations (Bulldozer) give the desired address on a INVLPG intercept explicitly in the EXITINFO1 field of the VMCB. Use this address to avoid a costly instruction fetch and deocde cycle. Only useful with shadow paging. Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx>
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