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cdd4de68ed
qemu/hw
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Cédric Le Goater cdd4de68ed ppc/xive: notify the CPU when the interrupt priority is more privileged 
After the event data was enqueued in the O/S Event Queue, the IVPE
raises the bit corresponding to the priority of the pending interrupt
in the register IBP (Interrupt Pending Buffer) to indicate there is an
event pending in one of the 8 priority queues. The Pending Interrupt
Priority Register (PIPR) is also updated using the IPB. This register
represent the priority of the most favored pending notification.

The PIPR is then compared to the the Current Processor Priority
Register (CPPR). If it is more favored (numerically less than), the
CPU interrupt line is raised and the EO bit of the Notification Source
Register (NSR) is updated to notify the presence of an exception for
the O/S. The check needs to be done whenever the PIPR or the CPPR are
changed.

The O/S acknowledges the interrupt with a special load in the Thread
Interrupt Management Area. If the EO bit of the NSR is set, the CPPR
takes the value of PIPR. The bit number in the IBP corresponding to
the priority of the pending interrupt is reseted and so is the EO bit
of the NSR.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
[dwg: Fix style nits]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2018-12-21 09:37:33 +11:00
..
9pfs 9p: remove support for the "handle" backend 2018-12-12 14:18:10 +01:00
acpi qmp hmp: Make system_wakeup check wake-up support and run state 2018-12-18 07:55:47 +01:00
adc Include qapi/error.h exactly where needed 2018-02-09 13:50:17 +01:00
alpha hw/alpha/typhoon: Remove unuseful code 2018-10-24 06:44:59 -03:00
arm miscellaneous patches: 2018-12-16 16:32:43 +00:00
audio audio/hda: fix guest triggerable assert 2018-11-27 07:47:57 +01:00
block miscellaneous patches: 2018-12-16 16:32:43 +00:00
bt hw/bt: Replace fprintf(stderr, "*\n" with error_report() 2018-01-22 09:51:00 +01:00
char qmp hmp: Make system_wakeup check wake-up support and run state 2018-12-18 07:55:47 +01:00
core miscellaneous patches: 2018-12-16 16:32:43 +00:00
cpu hw/cpu/a15mpcore: If CPU has EL2, enable it on the GIC and wire it up 2018-08-24 13:17:34 +01:00
cris hw/cris: Use the IEC binary prefix definitions 2018-07-02 15:41:15 +02:00
display display/g364fb: Convert sysbus init function to realize function 2018-12-13 13:47:57 +00:00
dma dma/puv3_dma: Convert sysbus init function to realize function 2018-12-13 13:47:58 +00:00
gpio gpio/puv3_gpio: Convert sysbus init function to realize function 2018-12-13 13:47:58 +00:00
hppa hw/hppa/dino: Remove unuseful code 2018-10-24 06:44:59 -03:00
hyperv hw/hyperv: fix NULL dereference with pure-kvm SynIC 2018-11-26 14:14:38 -02:00
i2c i2c: Move typedef of bitbang_i2c_interface to i2c.h 2018-12-12 10:01:13 +01:00
i386 qmp: query-current-machine with wakeup-suspend-support 2018-12-18 07:55:47 +01:00
ide replay: replay BH for IDE trim operation 2018-10-02 19:09:13 +02:00
input qmp hmp: Make system_wakeup check wake-up support and run state 2018-12-18 07:55:47 +01:00
intc ppc/xive: notify the CPU when the interrupt priority is more privileged 2018-12-21 09:37:33 +11:00
ipack hw/ipack: Use the IEC binary prefix definitions 2018-07-02 15:41:12 +02:00
ipmi ipmi: Use proper struct reference for BT vmstate 2018-08-23 18:46:25 +02:00
isa configs: Add a CONFIG_SMC37C669 switch for the "smc37c669-superio" device 2018-10-24 07:33:44 +01:00
lm32 milkymist: Check for failure trying to load BIOS image 2018-11-06 11:32:14 +00:00
m68k hw/m68k: Use the IEC binary prefix definitions 2018-07-02 15:41:14 +02:00
mem memory-device: avoid overflows on very huge devices 2018-12-11 15:45:22 -02:00
microblaze hw/microblaze/xlnx-zynqmp-pmu: Fix introspection problem in 'xlnx, zynqmp-pmu-soc' 2018-07-23 15:21:25 +01:00
mips hw/mips/malta: Remove unuseful code 2018-10-24 06:44:59 -03:00
misc miscellaneous patches: 2018-12-16 16:32:43 +00:00
moxie change get_image_size return type to int64_t 2018-10-02 19:08:49 +02:00
net net: cadence_gem: Remove incorrect assert() 2018-11-26 13:41:42 +00:00
nios2 hw/nios2: Use the IEC binary prefix definitions 2018-07-02 15:41:15 +02:00
nvram nvram/ds1225y: Convert sysbus init function to realize function 2018-12-13 13:48:00 +00:00
openrisc Change references to serial_hds[] to serial_hd() 2018-04-26 13:57:00 +01:00
pci hw/pci/pci.c: Don't use load_image() 2018-12-14 13:30:51 +00:00
pci-bridge pci-bridge/dec: Convert sysbus init function to realize function 2018-12-13 13:48:00 +00:00
pci-host ppc patch queue 2018-11-08 2018-11-08 14:42:37 +00:00
pcmcia hw: Clean up includes 2016-01-29 15:07:25 +00:00
ppc spapr: export and rename the xics_max_server_number() routine 2018-12-21 09:29:10 +11:00
rdma Clean up includes 2018-12-20 10:29:08 +01:00
riscv hw/riscv/virt: Free the test device tree node name 2018-11-13 15:12:13 -08:00
s390x error: Remove NULL checks on error_propagate() calls 2018-12-18 14:57:48 +01:00
scsi vmstate: constify VMStateField 2018-11-27 15:35:15 +01:00
sd hw/sd/sdhci: Don't leak memory region in sdhci_sysbus_realize() 2018-12-14 13:30:54 +00:00
sh4 hw/sh4/sh_pci: Use DeviceState::realize rather than SysBusDevice::init 2018-10-24 06:44:59 -03:00
smbios hw/smbios/smbios.c: Don't use load_image() 2018-12-14 13:30:50 +00:00
sparc Rename cpu_physical_memory_write_rom() to address_space_write_rom() 2018-12-14 13:30:48 +00:00
sparc64 hw/sparc64/niagara: Model the I/O Bridge with the 'unimplemented_device' 2018-10-24 06:44:59 -03:00
ssi hw/ssi/xilinx_spi: Use DeviceState::realize rather than SysBusDevice::init 2018-10-24 06:44:59 -03:00
timer qmp hmp: Make system_wakeup check wake-up support and run state 2018-12-18 07:55:47 +01:00
tpm tpm: Make sure the locality received from backend is valid 2018-12-04 10:21:25 -05:00
tricore hw/tricore: Use the IEC binary prefix definitions 2018-07-02 15:41:14 +02:00
unicore32 hw/input/i8042: Extract declarations from i386/pc.h into input/i8042.h 2018-03-12 16:12:48 +01:00
usb usb: fixes for mtp, ehci, usb-host and pvusb (xen). 2018-12-16 12:05:08 +00:00
vfio Clean up includes 2018-12-20 10:29:08 +01:00
virtio Trivial patches (2018-12-11) 2018-12-11 22:26:44 +00:00
watchdog qapi: Drop qapi_event_send_FOO()'s Error ** argument 2018-08-28 18:21:38 +02:00
xen xen_backend: remove xen_sysdev_init() function 2018-12-13 13:48:02 +00:00
xenpv hw/xen: Use the IEC binary prefix definitions 2018-07-02 15:41:13 +02:00
xtensa target/xtensa: xtfpga: provide default memory sizes 2018-11-21 10:53:21 -08:00
Makefile.objs memory-device: introduce separate config option 2018-10-24 06:44:59 -03:00