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[Xen-devel] bimodal PAE and compatibility

To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] bimodal PAE and compatibility
From: John Levon <levon@xxxxxxxxxxxxxxxxx>
Date: Mon, 8 Jan 2007 14:49:32 +0000
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We currently ship a PAE 32-bit domU that we can trivially make bimodal,
except that if we set it to "bimodal", then older Xens will default to
thinking the domU is not PAE:

353     dsi->pae_kernel = PAEKERN_no;
354     if ( dsi->__elfnote_section )
355     {
356         p = xen_elfnote_string(dsi, XEN_ELFNOTE_PAE_MODE);
357         if ( p != NULL && strncmp(p, "yes", 3) == 0 )
358             dsi->pae_kernel = PAEKERN_extended_cr3;

Could we have a new note instead?

thanks
john

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