d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add padding for future use on arm64

Browse Source 
Allow new features to be supported without changing the size of
existing structures.

Reviewed by:	kib
Sponsored by:	Arm Ltd
Differential Revision:	https://reviews.freebsd.org/D39777
This commit is contained in:
Andrew Turner 2023-04-24 17:18:47 +01:00
parent 19c804b74f
commit 6a9c2e63be
4 changed files with 6 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
sys/arm64/arm64/machdep.c
View File

@ -104,10 +104,10 @@ __FBSDID("$FreeBSD$");
#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;

2
sys/arm64/include/pcb.h
View File

@ -67,7 +67,7 @@ struct pcb {
/* 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

1
sys/arm64/include/pmap.h
View File

@ -95,6 +95,7 @@ struct pmap {
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;

2
sys/arm64/include/proc.h
View File

@ -63,6 +63,8 @@ struct mdthread {
struct {
struct ptrauth_key apia;
} md_ptrauth_kern;
uint64_t md_reserved[4];
};
struct mdproc {