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David Hildenbrand 766aa0a654 memory-device,vhost: Support memory devices that dynamically consume memslots 
We want to support memory devices that have a dynamically managed memory
region container as device memory region. This device memory region maps
multiple RAM memory subregions (e.g., aliases to the same RAM memory
region), whereby these subregions can be (un)mapped on demand.

Each RAM subregion will consume a memslot in KVM and vhost, resulting in
such a new device consuming memslots dynamically, and initially usually
0. We already track the number of used vs. required memslots for all
memslots. From that, we can derive the number of reserved memslots that
must not be used otherwise.

The target use case is virtio-mem and the hyper-v balloon, which will
dynamically map aliases to RAM memory region into their device memory
region container.

Properly document what's supported and what's not and extend the vhost
memslot check accordingly.

Message-ID: <20230926185738.277351-10-david@redhat.com>
Reviewed-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
2023-10-12 14:15:22 +02:00
..
9pfs fsdev: Use ThrottleDirection instread of bool is_write 2023-08-29 10:49:24 +02:00
acpi virtio,pci: features, cleanups 2023-10-05 09:01:01 -04:00
adc meson: Replace softmmu_ss -> system_ss 2023-06-20 10:01:30 +02:00
alpha hw/alpha: Use MachineClass->default_nic in the alpha machine 2023-05-26 09:10:49 +02:00
arm * fix from optionrom build 2023-10-03 07:43:44 -04:00
audio hw/audio/es1370: trace lost interrupts 2023-10-10 12:31:05 +00:00
avr
block swim: update IWM/ISM register block decoding 2023-10-06 10:33:43 +02:00
char hw/other: spelling fixes 2023-09-21 11:31:16 +03:00
core cpu: Correct invalid mentions of 'softmmu' by 'system-mode' 2023-10-07 19:02:33 +02:00
cpu hw/other: spelling fixes 2023-09-21 11:31:16 +03:00
cris
cxl hw/cxl: Fix local variable shadowing of cap_hdrs 2023-10-06 10:56:54 +02:00
display virtio,pci: features, cleanups 2023-10-05 09:01:01 -04:00
dma hw/other: spelling fixes 2023-09-21 11:31:16 +03:00
gpio hw/gpio/nrf51: implement DETECT signal 2023-08-22 17:30:59 +01:00
hppa target/hppa: Report and clear BTLBs via fw_cfg at startup 2023-09-15 17:34:38 +02:00
hyperv win32: replace closesocket() with close() wrapper 2023-03-13 15:39:31 +04:00
i2c aspeed/i2c: Clean up local variable shadowing 2023-09-29 10:07:19 +02:00
i386 hw/i386: changes towards enabling -Wshadow=local for x86 machines 2023-10-06 10:56:54 +02:00
ide hw/ide/ahci: Clean up local variable shadowing 2023-10-06 13:16:57 +02:00
input audio: propagate Error * out of audio_init 2023-10-03 10:29:40 +02:00
intc accel/tcg: Replace CPUState.env_ptr with cpu_env() 2023-10-04 11:03:54 -07:00
ipack meson: Replace softmmu_ss -> system_ss 2023-06-20 10:01:30 +02:00
ipmi hw/other: spelling fixes 2023-09-21 11:31:16 +03:00
isa hw/acpi/acpi_dev_interface: Remove now unused madt_cpu virtual method 2023-10-04 18:15:05 -04:00
loongarch target/loongarch: Clean up local variable shadowing 2023-10-06 10:56:54 +02:00
m68k q800: add alias for MacOS toolbox ROM at 0x40000000 2023-10-06 10:33:43 +02:00
mem memory-device,vhost: Support memory devices that dynamically consume memslots 2023-10-12 14:15:22 +02:00
microblaze hw/microblaze: Clean up local variable shadowing 2023-09-29 10:07:16 +02:00
mips vt82c686 machines: Support machine-default audiodev with fallback 2023-10-03 10:29:40 +02:00
misc mac_via: extend timer calibration hack to work with A/UX 2023-10-06 10:33:43 +02:00
net hw/net/vhost_net: Silence compiler warning when compiling with -Wshadow 2023-10-06 10:56:54 +02:00
nios2 hw/nios2: Clean up local variable shadowing 2023-09-29 10:07:16 +02:00
nubus trace-events: Fix the name of the tracing.rst file 2023-09-08 13:08:51 +03:00
nvme hw/nvme: Clean up local variable shadowing in nvme_ns_init() 2023-09-29 10:07:20 +02:00
nvram crypto: only include tls-cipher-suites in emulators 2023-10-03 10:29:39 +02:00
openrisc *: Add missing includes of qemu/error-report.h 2023-03-22 15:06:57 +00:00
pci pcie_sriov: unregister_vfs(): fix error path 2023-10-04 18:15:06 -04:00
pci-bridge hw/pci-bridge/cxl-upstream: Add serial number extended capability support 2023-10-04 18:15:06 -04:00
pci-host pc: remove short_root_bus property 2023-09-29 09:33:10 +02:00
pcmcia meson: Replace softmmu_ss -> system_ss 2023-06-20 10:01:30 +02:00
ppc accel/tcg: Replace CPUState.env_ptr with cpu_env() 2023-10-04 11:03:54 -07:00
rdma meson: Replace softmmu_ss -> system_ss 2023-06-20 10:01:30 +02:00
remote exec/memory: Add symbol for memory listener priority for device backend 2023-06-28 14:27:59 +02:00
riscv hw/riscv: opentitan: Fixup local variables shadowing 2023-09-29 10:07:20 +02:00
rtc hw/other: spelling fixes 2023-09-21 11:31:16 +03:00
rx hw/other: spelling fixes 2023-09-21 11:31:16 +03:00
s390x s390x: do a subsystem reset before the unprotect on reboot 2023-09-12 11:13:33 +02:00
scsi virtio,pci: features, cleanups 2023-10-05 09:01:01 -04:00
sd aspeed queue: 2023-09-06 11:14:55 -04:00
sensor hw/i2c: spelling fixes 2023-08-31 19:47:43 +02:00
sh4 hw/other: spelling fixes 2023-09-21 11:31:16 +03:00
smbios hw/acpi: changes towards enabling -Wshadow=local 2023-09-29 10:07:18 +02:00
sparc other architectures: spelling fixes 2023-07-25 17:14:07 +03:00
sparc64 hw/pci/pci: Remove multifunction parameter from pci_new_multifunction() 2023-07-10 18:59:32 -04:00
ssi hw/other: spelling fixes 2023-09-21 11:31:16 +03:00
timer aspeed/timer: Clean up local variable shadowing 2023-09-29 10:07:19 +02:00
tpm hw/tpm: spelling fixes 2023-09-20 07:54:34 +03:00
tricore hw/tricore: Log failing test in testdevice 2023-09-29 08:28:02 +02:00
ufs hw/ufs: Support for UFS logical unit 2023-09-07 14:01:29 -04:00
usb hw/usb: Silence compiler warnings in USB code when compiling with -Wshadow 2023-10-06 13:27:48 +02:00
vfio vfio/pci: enable MSI-X in interrupt restoring on dynamic allocation 2023-10-05 22:04:51 +02:00
virtio memory-device,vhost: Support memory devices that dynamically consume memslots 2023-10-12 14:15:22 +02:00
watchdog meson: Replace softmmu_ss -> system_ss 2023-06-20 10:01:30 +02:00
xen xen: spelling fix 2023-09-08 13:08:52 +03:00
xenpv hw/xenpv: Initialize Xen backend operations 2023-03-24 14:52:14 +00:00
xtensa trivial: Simplify the spots that use TARGET_BIG_ENDIAN as a numeric value 2023-09-08 13:08:52 +03:00
Kconfig hw/ufs: Initial commit for emulated Universal-Flash-Storage 2023-09-07 14:01:29 -04:00
meson.build hw/ufs: Initial commit for emulated Universal-Flash-Storage 2023-09-07 14:01:29 -04:00