From: Amit Shah <amit.shah@redhat.com>
Date: Fri, 20 Feb 2009 17:23:37 +0000 (+0530)
Subject: KVM: VMX: Update necessary state when guest enters long mode
X-Git-Tag: v2.6.30-rc1~664^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=401d10dee083bda281f2fdcdf654080313ba30ec;p=pandora-kernel.git

KVM: VMX: Update necessary state when guest enters long mode

setup_msrs() should be called when entering long mode to save the
shadow state for the 64-bit guest state.

Using vmx_set_efer() in enter_lmode() removes some duplicated code
and also ensures we call setup_msrs(). We can safely pass the value
of shadow_efer to vmx_set_efer() as no other bits in the efer change
while enabling long mode (guest first sets EFER.LME, then sets CR0.PG
which causes a vmexit where we activate long mode).

With this fix, is_long_mode() can check for EFER.LMA set instead of
EFER.LME and 5e23049e86dd298b72e206b420513dbc3a240cd9 can be reverted.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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