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diff --git a/sys/arm64/arm64/machdep.c b/sys/arm64/arm64/machdep.c
--- a/sys/arm64/arm64/machdep.c
+++ b/sys/arm64/arm64/machdep.c
@@ -104,10 +104,10 @@
#include <dev/smbios/smbios.h>
-_Static_assert(sizeof(struct pcb) == 1216, "struct pcb is incorrect size");
+_Static_assert(sizeof(struct pcb) == 1248, "struct pcb is incorrect size");
_Static_assert(offsetof(struct pcb, pcb_fpusaved) == 136,
"pcb_fpusaved changed offset");
-_Static_assert(offsetof(struct pcb, pcb_fpustate) == 160,
+_Static_assert(offsetof(struct pcb, pcb_fpustate) == 192,
"pcb_fpustate changed offset");
enum arm64_bus arm64_bus_method = ARM64_BUS_NONE;
diff --git a/sys/arm64/include/pcb.h b/sys/arm64/include/pcb.h
--- a/sys/arm64/include/pcb.h
+++ b/sys/arm64/include/pcb.h
@@ -67,7 +67,7 @@
/* The bits passed to userspace in get_fpcontext */
#define PCB_FP_USERMASK (PCB_FP_STARTED)
u_int pcb_vfpcpu; /* Last cpu this thread ran VFP code */
- uint64_t pcb_pad2;
+ uint64_t pcb_reserved[5];
/*
* The userspace VFP state. The pcb_fpusaved pointer will point to
diff --git a/sys/arm64/include/pmap.h b/sys/arm64/include/pmap.h
--- a/sys/arm64/include/pmap.h
+++ b/sys/arm64/include/pmap.h
@@ -95,6 +95,7 @@
struct asid_set *pm_asid_set; /* The ASID/VMID set to use */
enum pmap_stage pm_stage;
int pm_levels;
+ uint64_t pm_reserved[4];
};
typedef struct pmap *pmap_t;
diff --git a/sys/arm64/include/proc.h b/sys/arm64/include/proc.h
--- a/sys/arm64/include/proc.h
+++ b/sys/arm64/include/proc.h
@@ -63,6 +63,8 @@
struct {
struct ptrauth_key apia;
} md_ptrauth_kern;
+
+ uint64_t md_reserved[4];
};
struct mdproc {

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