30 lines
1.1 KiB
Diff
30 lines
1.1 KiB
Diff
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# Commit fd1864f48d8914fb8eeb6841cd08c2c09b368909
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# Date 2014-02-24 12:09:52 +0100
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# Author Yang Zhang <yang.z.zhang@Intel.com>
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# Committer Jan Beulich <jbeulich@suse.com>
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Nested VMX: update nested paging mode on vmexit
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Since SVM and VMX use different mechanism to emulate the virtual-vmentry
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and virtual-vmexit, it's hard to update the nested paging mode correctly in
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common code. So we need to update the nested paging mode in their respective
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code path.
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SVM already updates the nested paging mode on vmexit. This patch adds the same
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logic in VMX side.
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Previous discussion is here:
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http://lists.xen.org/archives/html/xen-devel/2013-12/msg01759.html
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Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com>
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Reviewed-by: Christoph Egger <chegger@amazon.de>
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--- a/xen/arch/x86/hvm/vmx/vmx.c
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+++ b/xen/arch/x86/hvm/vmx/vmx.c
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@@ -2541,6 +2541,7 @@ void vmx_vmexit_handler(struct cpu_user_
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vcpu_nestedhvm(v).nv_vmswitch_in_progress = 0;
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if ( nestedhvm_vcpu_in_guestmode(v) )
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{
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+ paging_update_nestedmode(v);
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if ( nvmx_n2_vmexit_handler(regs, exit_reason) )
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goto out;
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}
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