__vmcs_writel
__vmcs_writel(field.encoding, val);
__vmcs_writel(field, value);
__vmcs_writel(field, value);
__vmcs_writel(field, value);
__vmcs_writel(field, value);
__vmcs_writel(field+1, value >> 32);
__vmcs_writel(field, value);
__vmcs_writel(field, __vmcs_readl(field) & ~mask);
__vmcs_writel(field, __vmcs_readl(field) | mask);