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c1bb5418e3
qemu/hw
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David Woodhouse c1bb5418e3 target/i386: Support up to 32768 CPUs without IRQ remapping 
The IOAPIC has an 'Extended Destination ID' field in its RTE, which maps
to bits 11-4 of the MSI address. Since those address bits fall within a
given 4KiB page they were historically non-trivial to use on real hardware.

The Intel IOMMU uses the lowest bit to indicate a remappable format MSI,
and then the remaining 7 bits are part of the index.

Where the remappable format bit isn't set, we can actually use the other
seven to allow external (IOAPIC and MSI) interrupts to reach up to 32768
CPUs instead of just the 255 permitted on bare metal.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Message-Id: <78097f9218300e63e751e077a0a5ca029b56ba46.camel@infradead.org>
[Fix UBSAN warning. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2020-12-10 12:15:00 -05:00
..
9pfs hw/9pfs: Fix Kconfig dependency problem between 9pfs and Xen 2020-11-05 15:21:11 +01:00
acpi x86: acpi: let the firmware handle pending "CPU remove" events in SMM 2020-12-09 13:04:17 -05:00
adc meson: convert hw/adc 2020-08-21 06:30:32 -04:00
alpha load_elf: Remove unused address variables from callers 2020-09-25 16:52:08 -07:00
arm Aspeed patches : 2020-12-10 14:26:35 +00:00
audio nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
avr Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
block nand: put it into the 'storage' category 2020-11-17 10:17:02 +01:00
char nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
core hw: add compat machines for 6.0 2020-12-08 13:48:58 -05:00
cpu cpu/core: Register core-id and nr-threads as class properties 2020-09-22 16:48:29 -04:00
cris load_elf: Remove unused address variables from callers 2020-09-25 16:52:08 -07:00
display hw/display/tcx: add missing 64-bit access for framebuffer blitter 2020-11-22 10:43:30 +00:00
dma sparc32-ledma: don't reference nd_table directly within the device 2020-10-28 07:59:25 +00:00
gpio nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
hppa Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
hyperv qemu/atomic.h: rename atomic_ to qatomic_ 2020-09-23 16:07:44 +01:00
i2c nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
i386 target/i386: Support up to 32768 CPUs without IRQ remapping 2020-12-10 12:15:00 -05:00
ide ide: atapi: assert that the buffer pointer is in range 2020-12-01 15:23:05 +00:00
input hw/input/ps2.c: Remove remnants of printf debug 2020-11-17 12:56:32 +00:00
intc hw/intc/armv7m_nvic: Implement read/write for RAS register block 2020-12-10 11:44:56 +00:00
ipack Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
ipmi Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
isa x86: ich9: let firmware negotiate 'CPU hot-unplug with SMI' feature 2020-12-09 13:04:17 -05:00
lm32 nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
m68k hw/m68k/mcf5206: Don't leak IRQs in mcf5206_mbar_realize() 2020-12-09 08:04:34 +01:00
mem nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
microblaze load_elf: Remove unused address variables from callers 2020-09-25 16:52:08 -07:00
mips hw/mips/boston: Fix memory leak in boston_fdt_filter() error-handling paths 2020-11-09 00:40:44 +01:00
misc Aspeed patches : 2020-12-10 14:26:35 +00:00
moxie load_elf: Remove unused address variables from callers 2020-09-25 16:52:08 -07:00
net hw/net/can: Introduce Xilinx ZynqMP CAN controller 2020-12-10 11:30:44 +00:00
nios2 load_elf: Remove unused address variables from callers 2020-09-25 16:52:08 -07:00
nubus meson: convert hw/nubus 2020-08-21 06:30:25 -04:00
nvram fw_cfg: Refactor extra pci roots addition 2020-12-08 13:48:57 -05:00
openrisc meson: convert hw/arch* 2020-08-21 06:30:33 -04:00
pci pci: Disallow improper BAR registration for type 1 2020-10-30 06:48:53 -04:00
pci-bridge nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
pci-host acpi/gpex: Build tables for pxb 2020-12-08 13:48:57 -05:00
pcmcia pxa2xx: Move QOM macros to header 2020-08-27 14:04:55 -04:00
ppc hw: add compat machines for 6.0 2020-12-08 13:48:58 -05:00
rdma qemu/atomic.h: rename atomic_ to qatomic_ 2020-09-23 16:07:44 +01:00
riscv hw/riscv: microchip_pfsoc: Hook the I2C1 controller 2020-11-03 07:17:23 -08:00
rtc m48t59: remove legacy m48t59_init() function 2020-10-18 16:21:42 +01:00
rx hw/rx/rx-gdbsim: Fix memory leak (CID 1432307) 2020-11-09 00:53:07 +01:00
s390x hw: add compat machines for 6.0 2020-12-08 13:48:58 -05:00
scsi scsi-disk: convert more errno values back to SCSI statuses 2020-11-16 13:22:17 -05:00
sd hw/sd: Fix 2 GiB card CSD register values 2020-11-17 11:45:13 +01:00
semihosting meson: convert hw/semihosting 2020-08-21 06:30:25 -04:00
sh4 Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
smbios hw/smbios: Fix leaked fd in save_opt_one() error path 2020-11-03 07:19:27 -05:00
sparc sparc32-ledma: don't reference nd_table directly within the device 2020-10-28 07:59:25 +00:00
sparc64 sabre: don't call sysbus_mmio_map() in sabre_realize() 2020-10-28 07:59:25 +00:00
ssi aspeed/smc: Add support for address lane disablement 2020-12-10 12:11:03 +01:00
timer exynos: Fix bad printf format specifiers 2020-11-17 12:56:32 +00:00
tpm tpm: Fix Lesser GPL version number 2020-11-15 16:44:18 +01:00
tricore tricore tcg cpus: Fix Lesser GPL version number 2020-11-15 16:40:30 +01:00
unicore32 meson: convert hw/arch* 2020-08-21 06:30:33 -04:00
usb usb: fix kconfig for usb-xhci-sysbus 2020-11-20 10:43:41 -05:00
vfio vfio: Change default dirty pages tracking behavior during migration 2020-11-23 10:05:58 -07:00
virtio hw/virtio-pci Added AER capability. 2020-12-09 13:04:17 -05:00
watchdog hw/watchdog: Implement SBSA watchdog device 2020-10-27 11:10:44 +00:00
xen nomaintainer: Fix Lesser GPL version number 2020-11-15 17:04:40 +01:00
xenpv meson: convert hw/arch* 2020-08-21 06:30:33 -04:00
xtensa load_elf: Remove unused address variables from callers 2020-09-25 16:52:08 -07:00
Kconfig hw/net/can: Introduce Xilinx ZynqMP CAN controller 2020-12-10 11:30:44 +00:00
meson.build meson: convert hw/arch* 2020-08-21 06:30:33 -04:00