Yonghua Huang 9b37e1464c add IO requrest 'req_buf' check before reference ... This address maybe invalid if a hostile address was set in hypercall 'HC_SET_IOREQ_BUFFER'.it should be validated before using. Update: -- save HVA to guest OS's request buffer in hyperviosr -- change type of 'req_buf' from 'uint64_t' to 'void *' -- remove HPA to HVA translation code when using this addr. -- use error number instead of -1 when return error cases. Signed-off-by: Yonghua Huang <yonghua.huang@intel.com>		2018-05-15 17:25:27 +08:00
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x86	add IO requrest 'req_buf' check before reference	2018-05-15 17:25:27 +08:00