init ghost_control dynamically

Author: pqwy

arch/arm64/kvm/hyp/ghost_control.c

@@ -5,14 +5,16 @@
    Currently the checks also produce (fairly noisy) logging output - we might add separate switches for that
 */
 
-struct ghost_control ghost_control = {
-	.check_handle_host_mem_abort    = false,
-	.check_host_stage2_idmap        = false,
-	.check___pkvm_host_donate_guest = false,
-	.check___kvm_pgtable_walk       = false,
-	.check__kvm_pgtable_walk        = false,
-	.check_kvm_pgtable_stage2_map   = false,
-	.dump_handle_trap               = true,
-	.dump_handle_host_hcall         = true,
-	.dump_handle_host_hcall_verbose = false
-};
+struct ghost_control ghost_control;
+
+void init_ghost_control(void) {
+	ghost_control.check_handle_host_mem_abort    = false;
+	ghost_control.check_host_stage2_idmap        = false;
+	ghost_control.check___pkvm_host_donate_guest = false;
+	ghost_control.check___kvm_pgtable_walk       = false;
+	ghost_control.check__kvm_pgtable_walk        = false;
+	ghost_control.check_kvm_pgtable_stage2_map   = false;
+	ghost_control.dump_handle_trap               = true;
+	ghost_control.dump_handle_host_hcall         = true;
+	ghost_control.dump_handle_host_hcall_verbose = false;
+}

arch/arm64/kvm/hyp/ghost_control.h

@@ -16,6 +16,8 @@ struct ghost_control {
 
 extern struct ghost_control ghost_control;
 
+void init_ghost_control(void);
+
 #define GHOST_EXEC_SPEC false
 
 #endif // _GHOST_CONTROL_H

arch/arm64/kvm/hyp/nvhe/setup.c

@@ -26,6 +26,7 @@
 #include <nvhe/ghost_misc.h>
 #include "./ghost_compute_abstraction.h"
 #include <../ghost_pgtable.h>
+#include "../ghost_control.h"
 // /GHOST
 
 unsigned long hyp_nr_cpus;
@@ -432,6 +433,8 @@ int __pkvm_init(phys_addr_t phys, unsigned long size, unsigned long nr_cpus,
 	int ret;
 
 	// GHOST
+	init_ghost_control();
+
 	hyp_puts("\n__pkvm_init:");
 	hyp_puts("arguments:");
 	hyp_putsxnl("phys", phys, 64);