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[Xen-devel] expose PSE feature to HVM guests if PAE is turned on in conf
| To: | <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] expose PSE feature to HVM guests if PAE is turned on in config file |
| From: | "Li, Xin B" <xin.b.li@xxxxxxxxx> |
| Date: | Wed, 5 Jul 2006 16:01:44 +0800 |
| Delivery-date: | Wed, 05 Jul 2006 01:02:26 -0700 |
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| Thread-index: | AcagCUGCdb8hlVgHRGesfojamh2TXA== |
| Thread-topic: | expose PSE feature to HVM guests if PAE is turned on in config file |
This patch expose PSE feature to HVM guests if PAE is turned on in config file, with this change, RHEL4 IA32 SMP guest can boot. But because we don't support 4Mbytes PSE pages, so x86_32 HVM guest can NOT use PSE feature. However user may have "pae=1" in config file, which causes PSE feature seen by x86_32 HVM guest, and it will then use 4Mbytes PSE pages. In this case, we will have to crash x86_32 HVM. So when running x86_32 HVM guest, user need pay attention not to have "pae=1" in config file. Signed-off-by: Xin Li <xin.b.li@xxxxxxxxx> Signed-off-by: Xiaohui Xin <xiaohui.xin@xxxxxxxxx>
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