GET_QUOTE_BUF_SIZE
#define TDX_QUOTE_MAX_LEN (GET_QUOTE_BUF_SIZE - sizeof(struct tdx_quote_buf))
size_t len = PAGE_ALIGN(GET_QUOTE_BUF_SIZE);
size_t len = PAGE_ALIGN(GET_QUOTE_BUF_SIZE);
memset(quote_data, 0, GET_QUOTE_BUF_SIZE);
err = tdx_hcall_get_quote(quote_data, GET_QUOTE_BUF_SIZE);