d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
7cd4e55c43
freebsd-dev/sys/powerpc/include
History
Justin Hibbits 7cd4e55c43 Handle the Facility Unavailable exception as a SIGILL 
Currently Facility Unavailable is absent and once an application
tries to use or access a register from a feature disabled in the
CPU it causes a kernel panic.

A simple test-case is:

int main() { asm volatile ("tbegin.;"); }

which will use TM (Hardware Transactional Memory) feature which
is not supported by the kernel and so will trigger the following
kernel panic:

----

fatal user trap:

    exception       = 0xf60 (unknown)
    srr0            = 0x10000890
    srr1            = 0x800000000000f032
    lr              = 0x100004e4
    curthread       = 0x5f93000
    pid = 1021, comm = htm

panic: unknown trap
cpuid = 40
KDB: stack backtrace:
Uptime: 3m18s
Dumping 10 MB (3 chunks)
    chunk 0: 11MB (2648 pages) ... ok
    chunk 1: 1MB (24 pages) ... ok
    chunk 2: 1MB (2 pages)panic: IOMMU mapping error: -4

cpuid = 40
Uptime: 3m18s

----

Since Hardware Transactional Memory is not yet supported by FreeBSD, treat
this as an illegal instruction.

PR:		224350
Submitted by:	Gustavo Romero <gromero_AT_ibm_DOT_com>
MFC after:	2 weeks
2017-12-15 04:11:20 +00:00
..
_align.h spdx: initial adoption of licensing ID tags. 2017-11-18 14:26:50 +00:00
_bus.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
_inttypes.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
_limits.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
_stdint.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
_types.h spdx: initial adoption of licensing ID tags. 2017-11-18 14:26:50 +00:00
altivec.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
asm.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
atomic.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
bat.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
bus_dma.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
bus.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
clock.h
counter.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
cpu.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
cpufunc.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
db_machdep.h Fix printing of negative offsets (typically from frame pointers) again. 2017-03-26 18:46:35 +00:00
dbdma.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
dump.h Factor out duplicated code from dumpsys() on each architecture into generic 2015-01-07 01:01:39 +00:00
efi.h Fix building on i386 and arm. But 'public domain' headers on the files 2016-10-13 06:56:23 +00:00
elf.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
endian.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
exec.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
float.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
floatingpoint.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
fpu.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
frame.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
gdb_machdep.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
hid.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
ieee.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
ieeefp.h
in_cksum.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
intr_machdep.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
kdb.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
limits.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
machdep.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
md_var.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
memdev.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
metadata.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
mmuvar.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
ofw_machdep.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
openpicreg.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
openpicvar.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
param.h spdx: initial adoption of licensing ID tags. 2017-11-18 14:26:50 +00:00
pcb.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
pcpu.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
pio.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
platform.h Whether you can use mttb() or not is more complicated than whether PSL_HV 2017-11-25 21:59:59 +00:00
platformvar.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
pmap.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
pmc_mdep.h Implement hwpmc(4) for Freescale e500 core. 2015-04-18 21:39:17 +00:00
proc.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
profile.h SPDX: Consider code from Carnegie-Mellon University. 2017-11-30 15:48:35 +00:00
psl.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
pte.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
ptrace.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
reg.h Restore the ABI of 'struct fpreg' on powerpc. 2016-02-01 23:12:04 +00:00
reloc.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
resource.h
rtas.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
runq.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
sc_machdep.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
setjmp.h Use setjmp() instead of the identical-except-for-having-a-wrong-prototype 2016-01-10 16:42:14 +00:00
sigframe.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
signal.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
slb.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
smp.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
spr.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
sr.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
stack.h
stdarg.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
sysarch.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
tlb.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
trap.h Handle the Facility Unavailable exception as a SIGILL 2017-12-15 04:11:20 +00:00
ucontext.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
varargs.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
vdso.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
vm.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
vmparam.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00