Messages in this thread | | | Date | Fri, 8 Jun 2007 15:44:41 -0400 | From | Jeff Dike <> | Subject | Re: [kvm-devel] [PATCH] KVM - Fix rmode_tss_base declaration |
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On Thu, Jun 07, 2007 at 08:09:48AM +0300, Avi Kivity wrote: > Some extra logic is needed on i386 with >= 4GB. Current code will > wraparound since gfn_t is 32-bits long, but casting it to 64-bits is not > the answer since the processor will truncate it back to 32 bits (the > return value is eventually used as a long in enter_rmode()).
Is it necessary to initialize TR in enter_rmode? I can't see anything that says it has any meaning in real mode.
And if not, would not the guest be responsible for finding room for the TSS?
Jeff
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