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464e14ac43
qemu/hw
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Ben Widawsky 464e14ac43 hw/cxl/device: Implement basic mailbox (8.2.8.4) 
This is the beginning of implementing mailbox support for CXL 2.0
devices. The implementation recognizes when the doorbell is rung,
handles the command/payload, clears the doorbell while returning error
codes and data.

Generally the mailbox mechanism is designed to permit communication
between the host OS and the firmware running on the device. For our
purposes, we emulate both the firmware, implemented primarily in
cxl-mailbox-utils.c, and the hardware.

No commands are implemented yet.

Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220429144110.25167-7-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-05-13 06:13:36 -04:00
..
9pfs 9pfs: fix qemu_mknodat() to always return -1 on error on macOS host 2022-05-01 14:07:03 +02:00
acpi hw/acpi/aml-build: Use existing CPU topology to build PPTT table 2022-05-09 11:47:55 +01:00
adc aspeed/adc: Add AST1030 support 2022-05-02 17:03:02 +02:00
alpha Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
arm machine: use QAPI struct for boot configuration 2022-05-12 12:29:43 +02:00
audio pc: remove -soundhw pcspk 2022-05-07 07:46:59 +02:00
avr Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
block hw/block/fdc: Prevent end-of-track overrun (CVE-2021-3507) 2022-05-12 12:31:08 +02:00
char hw/char: fix qcode array bounds check in ESCC impl 2022-04-26 16:12:26 +01:00
core machine: move more memory validation to Machine object 2022-05-12 12:29:44 +02:00
cpu cpu/core: Fix "help" of CPU core device types 2021-04-09 16:05:16 -04:00
cris Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
cxl hw/cxl/device: Implement basic mailbox (8.2.8.4) 2022-05-13 06:13:36 -04:00
display artist: only render dirty scanlines on the display surface 2022-05-08 18:52:37 +01:00
dma Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
gpio hw/gpio/aspeed_gpio: Fix QOM pin property 2022-05-02 17:03:04 +02:00
hppa machine: use QAPI struct for boot configuration 2022-05-12 12:29:43 +02:00
hyperv util: rename qemu_*block() socket functions 2022-05-03 15:53:20 +04:00
i2c Use g_new() & friends where that makes obvious sense 2022-03-21 15:44:44 +01:00
i386 intel-iommu: correct the value used for error_setg_errno() 2022-05-13 05:22:31 -04:00
ide MIPS patches queue 2022-03-09 09:13:39 +00:00
input hw: replace qemu_set_nonblock() 2022-05-03 15:52:33 +04:00
intc ppc/xive: Update the state of the External interrupt signal 2022-05-05 15:36:17 -03:00
ipack qbus: Rename qbus_create_inplace() to qbus_init() 2021-09-30 13:42:10 +01:00
ipmi hw/isa: Inline and remove one-line isa_init_irq() 2022-03-08 19:38:17 +01:00
isa Warn user if the vga flag is passed but no vga device is created 2022-05-09 08:21:14 +02:00
m68k hw: Add compat machines for 7.1 2022-04-20 09:36:24 +02:00
mem Mark remaining global TypeInfo instances as const 2022-02-21 13:30:20 +00:00
microblaze Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
mips Warn user if the vga flag is passed but no vga device is created 2022-05-09 08:21:14 +02:00
misc lasi: move from hw/hppa to hw/misc 2022-05-08 18:52:37 +01:00
net Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
nios2 hw/nios2: Machine with a Vectored Interrupt Controller 2022-04-26 08:17:05 -07:00
nubus qbus: Rename qbus_create_inplace() to qbus_init() 2021-09-30 13:42:10 +01:00
nvme Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
nvram machine: use QAPI struct for boot configuration 2022-05-12 12:29:43 +02:00
openrisc hw/openrisc/openrisc_sim: Add support for initrd loading 2022-02-26 10:39:36 +09:00
pci hw/pci/cxl: Add a CXL component type (interface) 2022-05-13 06:13:35 -04:00
pci-bridge pci: expose TYPE_XIO3130_DOWNSTREAM name 2022-03-06 05:08:23 -05:00
pci-host dino: move from hw/hppa to hw/pci-host 2022-05-08 18:52:36 +01:00
pcmcia hw/pcmcia: Do not register PCMCIA type if not required 2021-05-02 17:24:50 +02:00
ppc machine: use QAPI struct for boot configuration 2022-05-12 12:29:43 +02:00
rdma hw/pvrdma: Some cosmetic fixes 2022-04-26 12:25:14 +02:00
remote Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
riscv hw/riscv: Enable TPM backends 2022-04-29 10:48:48 +10:00
rtc Replace qemu_gettimeofday() with g_get_real_time() 2022-04-06 10:50:37 +02:00
rx hw/rx: rx-gdbsim DTB load address aligned of 16byte. 2022-04-21 10:06:42 -07:00
s390x machine: use QAPI struct for boot configuration 2022-05-12 12:29:43 +02:00
scsi virtio-scsi: move request-related items from .h to .c 2022-05-09 10:45:04 +01:00
sd Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
sensor hw/sensor: add Renesas raa228000 device 2022-03-08 18:46:48 +01:00
sh4 Use g_new() & friends where that makes obvious sense 2022-03-21 15:44:44 +01:00
smbios hw/smbios: Add table 4 parameter, "processor-id" 2022-03-06 05:28:55 -05:00
sparc machine: make memory-backend a link property 2022-05-12 12:29:44 +02:00
sparc64 machine: use QAPI struct for boot configuration 2022-05-12 12:29:43 +02:00
ssi aspeed/smc: Add AST1030 support 2022-05-02 17:03:03 +02:00
timer aspeed/timer: Add AST1030 support 2022-05-02 17:03:03 +02:00
tpm Replace qemu_real_host_page variables with inlined functions 2022-04-06 10:50:38 +02:00
tricore hw/tricore: fix inclusion of tricore_testboard 2021-07-20 20:10:21 +02:00
usb Clean up header guards that don't match their file name 2022-05-11 16:49:06 +02:00
vfio vfio/common: Rename VFIOGuestIOMMU::iommu into ::iommu_mr 2022-05-06 09:06:51 -06:00
virtio virtio: fix feature negotiation for ACCESS_PLATFORM 2022-05-13 05:22:31 -04:00
watchdog aspeed/wdt: Add AST1030 support 2022-05-02 17:03:03 +02:00
xen hw/xen/xen_pt: Resolve igd_passthrough_isa_bridge_create() indirection 2022-05-12 12:07:06 +02:00
xenpv Warn user if the vga flag is passed but no vga device is created 2022-05-09 08:21:14 +02:00
xtensa hw/xtensa: fix reset value of MIROUT register of MX PIC 2022-05-06 15:27:40 -07:00
Kconfig hw/cxl/component: Introduce CXL components (8.1.x, 8.2.5) 2022-05-13 06:13:35 -04:00
meson.build hw/cxl/component: Introduce CXL components (8.1.x, 8.2.5) 2022-05-13 06:13:35 -04:00