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bab105300b
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David Hildenbrand bab105300b vhost-user: Remove acpi-specific memslot limit 
Let's just support 512 memslots on x86-64 and aarch64 as well. The maximum
number of ACPI slots (256) is no longer completely expressive ever since
we supported virtio-based memory devices. Further, we're completely
ignoring other memslots used outside of memory device context, such as
memslots used for boot memory.

Note that the vhost memslot limit in the kernel is usually configured to
be 509. With this change, we prepare vhost-user on the QEMU side to be
closer to that limit, to eventually support ~512 memslots in most vhost
implementations and have less "surprises" when cold/hotplugging vhost
devices while also consuming more memslots than we're currently used to
by memory devices (e.g., once virtio-mem starts using multiple memslots).

Note that most vhost-user implementations only support a small number of
memslots so far, which we can hopefully improve in the near future.

We'll leave the PPC special-case as is for now.

Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20230503184144.808478-1-david@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-05-19 10:30:46 -04:00
..
9pfs 9pfs/xen: Fix segfault on shutdown 2023-05-16 16:21:54 +02:00
acpi hw/pci-bridge: Make PCIe and CXL PXB Devices inherit from TYPE_PXB_DEV 2023-04-24 22:56:55 -04:00
adc hw/adc: Make adci[*] R/W in NPCM7XX ADC 2022-07-18 13:20:14 +01:00
alpha Drop duplicate #include 2023-02-08 07:28:05 +01:00
arm hw/arm/vexpress: Avoid trivial memory leak of 'flashalias' 2023-05-18 11:39:33 +01:00
audio hw/audio/via-ac97: Basic implementation of audio playback 2023-03-08 00:37:48 +01:00
avr Remove qemu-common.h include from most units 2022-04-06 14:31:55 +02:00
block virtio-blk: add some trace events for zoned emulation 2023-05-15 08:18:10 -04:00
char hw/riscv: Add signature dump function for spike to run ACT tests 2023-05-05 10:49:50 +10:00
core hw/pci: Disable PCI_ERR_UNCOR_MASK register for machine type < 8.0 2023-05-19 10:30:46 -04:00
cpu hw/cpu: Mark arm11 and realview mpcore as target-independent code 2023-01-16 17:51:20 +01:00
cris
cxl hw/cxl: Multi-Region CXL Type-3 Devices (Volatile and Persistent) 2023-05-19 01:36:09 -04:00
display hw/display/sm501: Remove unneeded increment from loop 2023-05-05 12:34:22 -03:00
dma replace TABs with spaces 2023-03-20 12:43:50 +01:00
gpio replace TABs with spaces 2023-03-20 12:43:50 +01:00
hppa hw/isa: Rename isa_bus_irqs() -> isa_bus_register_input_irqs() 2023-02-27 22:29:02 +01:00
hyperv win32: replace closesocket() with close() wrapper 2023-03-13 15:39:31 +04:00
i2c hw/i2c/allwinner-i2c: Fix subclassing of TYPE_AW_I2C_SUN6I 2023-04-11 14:13:29 +01:00
i386 virtio-mem: Default to "unplugged-inaccessible=on" with 8.1 on x86-64 2023-05-19 10:30:46 -04:00
ide hw: replace most qemu_bh_new calls with qemu_bh_new_guarded 2023-04-28 11:31:54 +02:00
input replace TABs with spaces 2023-03-20 12:43:50 +01:00
intc hw/intc: Add NULL pointer check on LoongArch ipi device 2023-05-15 19:09:33 +08:00
ipack include/hw/pci: Split pci_device.h off pci.h 2023-01-08 01:54:22 -05:00
ipmi include/hw/pci: Split pci_device.h off pci.h 2023-01-08 01:54:22 -05:00
isa virtio,pc,pci: features, fixes 2023-03-10 14:31:37 +00:00
loongarch hw/loongarch/virt: Set max 256 cpus support on loongarch virt machine 2023-05-15 19:09:33 +08:00
m68k hw: Add compat machines for 8.1 2023-04-21 04:25:52 -04:00
mem hw/cxl: Multi-Region CXL Type-3 Devices (Volatile and Persistent) 2023-05-19 01:36:09 -04:00
microblaze hw/char/xilinx_uartlite: Open-code xilinx_uartlite_create() 2023-02-27 13:27:05 +00:00
mips hw/mips/malta: Fix minor dead code issue 2023-05-12 15:43:38 +01:00
misc hw/arm/bcm2835_property: Implement "get command line" message 2023-05-02 15:47:40 +01:00
net hw/net: Move xilinx_ethlite.c to the target-independent source set 2023-05-16 09:14:18 +02:00
nios2 hw/nios2: set machine->fdt in nios2_load_dtb() 2022-10-17 16:15:10 -03:00
nubus hw/nubus/nubus-device: Fix memory leak in nubus_device_realize 2023-02-27 22:29:01 +01:00
nvme hw: replace most qemu_bh_new calls with qemu_bh_new_guarded 2023-04-28 11:31:54 +02:00
nvram aspeed queue: 2023-03-03 17:11:22 +00:00
openrisc *: Add missing includes of qemu/error-report.h 2023-03-22 15:06:57 +00:00
pci hw/pci: Disable PCI_ERR_UNCOR_MASK register for machine type < 8.0 2023-05-19 10:30:46 -04:00
pci-bridge hw/cxl: cdat: Fix failure to free buffer in erorr paths 2023-05-19 01:36:09 -04:00
pci-host raven: disable reentrancy detection for iomem 2023-04-28 11:31:54 +02:00
pcmcia
ppc hw/ppc/Kconfig: NVDIMM is a hard requirement for the pseries machine 2023-05-05 12:34:22 -03:00
rdma hw/rdma: VMW_PVRDMA should depend on VMXNET3_PCI 2023-04-28 08:05:37 +02:00
remote Drop duplicate #include 2023-02-08 07:28:05 +01:00
riscv hw/riscv: Add signature dump function for spike to run ACT tests 2023-05-05 10:49:50 +10:00
rtc replace TABs with spaces 2023-03-20 12:43:50 +01:00
rx rx: re-randomize rng-seed on reboot 2022-10-27 11:34:31 +01:00
s390x s390x/pv: Fix spurious warning with asynchronous teardown 2023-05-16 09:14:18 +02:00
scsi scsi-generic: fix buffer overflow on block limits inquiry 2023-05-18 08:53:51 +02:00
sd hw/sd/allwinner-sdhost: Correctly byteswap descriptor fields 2023-05-02 15:47:41 +01:00
sensor Do not include hw/hw.h if it is not necessary 2023-02-27 09:15:38 +01:00
sh4 hw/ide/mmio: Extract TYPE_MMIO_IDE declarations to 'hw/ide/mmio.h' 2023-02-27 22:29:02 +01:00
smbios hw/smbios: fix field corruption in type 4 table 2023-03-02 03:10:46 -05:00
sparc machine: make memory-backend a link property 2022-05-12 12:29:44 +02:00
sparc64 pci: avoid accessing slot_reserved_mask directly outside of pci.c 2023-04-21 04:25:52 -04:00
ssi hw/ssi: Fix Linux driver init issue with xilinx_spi 2023-04-03 16:12:30 +01:00
timer hw/timer/imx_epit: fix limit check 2023-04-20 10:21:14 +01:00
tpm tpm: Add support for TPM device over I2C bus 2023-04-20 08:17:15 -04:00
tricore
usb hw/arm: Select XLNX_USB_SUBSYS for xlnx-zcu102 machine 2023-05-10 16:02:58 +01:00
vfio vfio/pci: Static Resizable BAR capability 2023-05-09 09:30:13 -06:00
virtio vhost-user: Remove acpi-specific memslot limit 2023-05-19 10:30:46 -04:00
watchdog hw/watchdog: Allwinner WDT emulation for system reset 2023-04-20 10:21:13 +01:00
xen pci: avoid accessing slot_reserved_mask directly outside of pci.c 2023-04-21 04:25:52 -04:00
xenpv hw/xenpv: Initialize Xen backend operations 2023-03-24 14:52:14 +00:00
xtensa hw/xtensa: fix reset value of MIROUT register of MX PIC 2022-05-06 15:27:40 -07:00
Kconfig xen: add CONFIG_XEN_BUS and CONFIG_XEN_EMU options for Xen emulation 2023-03-01 08:22:49 +00:00
meson.build hw/loongarch: Add support loongson3 virt machine type. 2022-06-06 18:09:03 +00:00