diff options
Diffstat (limited to 'arch/powerpc/include/asm/ppc_asm.h')
| -rw-r--r-- | arch/powerpc/include/asm/ppc_asm.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h index 753a2757bcd4..d2f44612f4b0 100644 --- a/arch/powerpc/include/asm/ppc_asm.h +++ b/arch/powerpc/include/asm/ppc_asm.h @@ -74,6 +74,25 @@ #define SAVE_GPR(n, base) SAVE_GPRS(n, n, base) #define REST_GPR(n, base) REST_GPRS(n, n, base) +/* macros for handling user register sanitisation */ +#ifdef CONFIG_INTERRUPT_SANITIZE_REGISTERS +#define SANITIZE_SYSCALL_GPRS() ZEROIZE_GPR(0); \ + ZEROIZE_GPRS(5, 12); \ + ZEROIZE_NVGPRS() +#define SANITIZE_GPR(n) ZEROIZE_GPR(n) +#define SANITIZE_GPRS(start, end) ZEROIZE_GPRS(start, end) +#define SANITIZE_NVGPRS() ZEROIZE_NVGPRS() +#define SANITIZE_RESTORE_NVGPRS() REST_NVGPRS(r1) +#define HANDLER_RESTORE_NVGPRS() +#else +#define SANITIZE_SYSCALL_GPRS() +#define SANITIZE_GPR(n) +#define SANITIZE_GPRS(start, end) +#define SANITIZE_NVGPRS() +#define SANITIZE_RESTORE_NVGPRS() +#define HANDLER_RESTORE_NVGPRS() REST_NVGPRS(r1) +#endif /* CONFIG_INTERRUPT_SANITIZE_REGISTERS */ + #define SAVE_FPR(n, base) stfd n,8*TS_FPRWIDTH*(n)(base) #define SAVE_2FPRS(n, base) SAVE_FPR(n, base); SAVE_FPR(n+1, base) #define SAVE_4FPRS(n, base) SAVE_2FPRS(n, base); SAVE_2FPRS(n+2, base) |