Add generation for remaining, fix invalid fseek().
diff --git a/generator/sections/gen-section-cxl-protocol.c b/generator/sections/gen-section-cxl-protocol.c
new file mode 100644
index 0000000..64326f9
--- /dev/null
+++ b/generator/sections/gen-section-cxl-protocol.c
@@ -0,0 +1,57 @@
+/**
+ * Functions for generating psuedo-random CXL protocol error sections.
+ *
+ * Author: Lawrence.Tang@arm.com
+ **/
+
+#include <stdlib.h>
+#include "../../edk/BaseTypes.h"
+#include "../gen-utils.h"
+#include "gen-sections.h"
+
+//Generates a single psuedo-random CXL protocol error section, saving the resulting address to the given
+//location. Returns the size of the newly created section.
+size_t generate_section_cxl_protocol(void** location)
+{
+ //Create a random length for the CXL DVSEC and CXL error log.
+ //The logs attached here do not necessarily conform to the specification, and are simply random.
+ int dvsec_len = rand() % 64;
+ int error_log_len = rand() % 64;
+
+ //Create random bytes.
+ int size = 116 + dvsec_len + error_log_len;
+ UINT8* bytes = generate_random_bytes(size);
+
+ //Set CXL agent type.
+ int cxl_agent_type = rand() % 2;
+ *(bytes + 8) = cxl_agent_type;
+
+ //Set reserved areas to zero.
+ UINT64* validation = (UINT64*)bytes;
+ *validation &= 0b111111; //Validation bits 6-63.
+ for (int i=0; i<7; i++)
+ *(bytes + 9 + i) = 0; //Reserved bytes 9-15.
+
+ //We only reserve bytes if it's a CXL 1.1 device, and not a host downstream port.
+ if (cxl_agent_type == 0)
+ {
+ for (int i=0; i<3; i++)
+ *(bytes + 20 + i) = 0; //CXL agent address bytes 5-7.
+ }
+
+ *(bytes + 34) &= ~0b111; //Device ID byte 10 bits 0-2.
+ UINT32* reserved = (UINT32*)(bytes + 36);
+ *reserved = 0; //Device ID bytes 12-15.
+ reserved = (UINT32*)(bytes + 112);
+ *reserved = 0; //Reserved bytes 112-115.
+
+ //Set expected values.
+ UINT16* dvsec_length_field = (UINT16*)(bytes + 108);
+ UINT16* error_log_len_field = (UINT16*)(bytes + 110);
+ *dvsec_length_field = dvsec_len;
+ *error_log_len_field = error_log_len;
+
+ //Set return values, exit.
+ *location = bytes;
+ return size;
+}
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