diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/amd64/amd64/fpu.c | 21 | ||||
| -rw-r--r-- | sys/i386/isa/npx.c | 11 |
2 files changed, 18 insertions, 14 deletions
diff --git a/sys/amd64/amd64/fpu.c b/sys/amd64/amd64/fpu.c index f30c073..d9c967c 100644 --- a/sys/amd64/amd64/fpu.c +++ b/sys/amd64/amd64/fpu.c @@ -318,13 +318,15 @@ fpuinitstate(void *arg __unused) cpu_mxcsr_mask = 0xFFBF; /* - * The fninit instruction does not modify XMM registers. The - * fpusave call dumped the garbage contained in the registers - * after reset to the initial state saved. Clear XMM - * registers file image to make the startup program state and - * signal handler XMM register content predictable. + * The fninit instruction does not modify XMM registers or x87 + * registers (MM/ST). The fpusave call dumped the garbage + * contained in the registers after reset to the initial state + * saved. Clear XMM and x87 registers file image to make the + * startup program state and signal handler XMM/x87 register + * content predictable. */ - bzero(&fpu_initialstate->sv_xmm[0], sizeof(struct xmmacc)); + bzero(fpu_initialstate->sv_fp, sizeof(fpu_initialstate->sv_fp)); + bzero(fpu_initialstate->sv_xmm, sizeof(fpu_initialstate->sv_xmm)); /* * Create a table describing the layout of the CPU Extended @@ -375,7 +377,7 @@ fpuexit(struct thread *td) } int -fpuformat() +fpuformat(void) { return (_MC_FPFMT_XMM); @@ -661,7 +663,8 @@ fpudna(void) * fpu_initialstate, to ignite the XSAVEOPT * tracking engine. */ - bcopy(fpu_initialstate, curpcb->pcb_save, cpu_max_ext_state_size); + bcopy(fpu_initialstate, curpcb->pcb_save, + cpu_max_ext_state_size); fpurestore(curpcb->pcb_save); if (curpcb->pcb_initial_fpucw != __INITIAL_FPUCW__) fldcw(curpcb->pcb_initial_fpucw); @@ -676,7 +679,7 @@ fpudna(void) } void -fpudrop() +fpudrop(void) { struct thread *td; diff --git a/sys/i386/isa/npx.c b/sys/i386/isa/npx.c index b0ea4e7..dff0f5c 100644 --- a/sys/i386/isa/npx.c +++ b/sys/i386/isa/npx.c @@ -503,11 +503,12 @@ npxinitstate(void *arg __unused) /* * The fninit instruction does not modify XMM - * registers. The fpusave call dumped the garbage - * contained in the registers after reset to the - * initial state saved. Clear XMM registers file - * image to make the startup program state and signal - * handler XMM register content predictable. + * registers or x87 registers (MM/ST). The fpusave + * call dumped the garbage contained in the registers + * after reset to the initial state saved. Clear XMM + * and x87 registers file image to make the startup + * program state and signal handler XMM/x87 register + * content predictable. */ bzero(npx_initialstate->sv_xmm.sv_fp, sizeof(npx_initialstate->sv_xmm.sv_fp)); |
