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c071191be5
freebsd-skq/sys/powerpc/include
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Justin Hibbits 8af4cc4d5a powernv: Add Hypervisor Maintenance Interrupt handler 
Attempting to build www/firefox on POWER9 resulted in a HMI exception being
thrown, a fatal trap currently.  This is typically caused by timer facility
errors, but examination of the Hypervisor Maintenance Exception Register
(HMER) yielded only that an exception had recovered, with no information of
the actual exception cause.

When an HMI occurs, OPAL_HANDLE_HMI or OPAL_HANDLE_HMI2 must be called to
handle the exception at the firmware level.  If the exception is handled, we
can continue.

This adds only the preliminary handler, enough to prevent package building
from panicking.  An enhancement in the future is to use the flags returned
by OPAL_HANDLE_HMI2 to print more useful error messages, and log maintenance
events.

Reviewed by:	luporl
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D19634
2019-03-23 03:23:20 +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 Do not include float interfaces when using libsa. 2018-02-23 04:04:25 +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 Implement atomic_swap_xxx() for all platforms. 2018-12-10 13:38:13 +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 Back pcpu zone with domain correct pages 2018-07-06 02:06:03 +00:00
cpu.h Add a KPI for the delay while spinning on a spin lock. 2018-11-05 21:34:17 +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 PPC symbol resolution 2018-05-10 03:59:48 +00:00
dbdma.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
dump.h
efi.h
elf.h Consolidate identical ELF auxargs type defintions. 2018-10-22 22:24:32 +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 Added ptrace support for reading/writing powerpc VSX registers 2018-06-02 19:17:11 +00:00
frame.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
gdb_machdep.h amd64: Protect the kernel text, data, and BSS by setting the RW/NX bits 2018-03-06 14:28:37 +00:00
hid.h On POWER9 clear the HID0_RADIX before enabling the page tables 2018-05-26 04:33:19 +00:00
ieee.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
ieeefp.h Fix floating point exception definitions for powerpcspe 2018-07-24 22:04:56 +00:00
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 Expose stopped cpu contexts to ddb on PowerPC 2018-06-25 22:05:33 +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 Break out the cpu_features setup to its own function, to be run earlier 2018-05-05 15:48:39 +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 Split the PowerISA 3.0 HPT implementation from historic 2018-06-14 17:23:51 +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 powerpc: Bind IRQs to only one interrupt on QorIQ SoCs 2019-02-06 03:52:14 +00:00
param.h spdx: initial adoption of licensing ID tags. 2017-11-18 14:26:50 +00:00
pcb.h powerpc: Sync icache on SIGILL, in case of cache issues 2018-11-19 23:54:49 +00:00
pcpu.h powerpc64: Add initial support for HTM (kABI) 2018-09-06 17:07:21 +00:00
pio.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
platform.h powerpc: Fix regression introduced in r342771 2019-01-07 19:39:31 +00:00
platformvar.h sys/powerpc: further adoption of SPDX licensing ID tags. 2017-11-27 15:09:59 +00:00
pmap.h Add kernel support for Intel userspace protection keys feature on 2019-02-20 09:51:13 +00:00
pmc_mdep.h
proc.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
procctl.h amd64 KPTI: add control from procctl(2). 2019-03-16 11:44:33 +00:00
profile.h SPDX: Consider code from Carnegie-Mellon University. 2017-11-30 15:48:35 +00:00
psl.h Change the default MSR values used when starting userland and kernel 2018-02-01 05:31:24 +00:00
pte.h Add support for powernv POWER9 MMU initialization 2018-05-05 16:00:02 +00:00
ptrace.h Added ptrace support for reading/writing powerpc VSX registers 2018-06-02 19:17:11 +00:00
reg.h Move most of the contents of opt_compat.h to opt_global.h. 2018-04-06 17:35:35 +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
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 Expose stopped cpu contexts to ddb on PowerPC 2018-06-25 22:05:33 +00:00
spr.h powernv: Add Hypervisor Maintenance Interrupt handler 2019-03-23 03:23:20 +00:00
sr.h Move the powerpc64 direct map base address from zero to high memory. This 2018-03-07 17:08:07 +00:00
stack.h
stdarg.h Use standard pattern for stdargs.h 2018-02-12 14:48:05 +00:00
sysarch.h sys: further adoption of SPDX licensing ID tags. 2017-11-20 19:43:44 +00:00
tlb.h powerpc/booke: Turn tlb*_print_tlbentries() into 'show tlb*' DDB commands 2018-10-22 00:21:27 +00:00
trap.h powernv: Add Hypervisor Maintenance Interrupt handler 2019-03-23 03:23:20 +00:00
ucontext.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 powerpc/booke: Change KERNBASE to be physical load address 2018-12-13 05:07:39 +00:00