KVM: VMX: Fix %ds/%es clobber
The vmx exit code unconditionally restores %ds and %es to __USER_DS. This can override the user's values, since %ds and %es are not saved and restored in x86_64 syscalls. In practice, this isn't dangerous since nobody uses segment registers in long mode, least of all programs that use KVM. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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