The devices to be notified on resume are unrelated to the functionality
of Bus, which is looking up devices in an address space. Additionally,
each Bus instance had its own list of devices to notify, although in
practice, only the one in the I/O bus was used.
Move the resume_notify_devices list into RunnableLinuxVm instead.
BUG=None
TEST=Boot Crostini on x86 and arm
Change-Id: I72c629c6d6589c4a9350831c8a076c5c0c9f9aeb
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3043489
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-by: Tomasz Jeznach <tjeznach@chromium.org>
In VT-d, the IOMMU hardware can translate guest physical address that
is no more than MGAW (Maximum Guest Address Width) which is reported
from the VT-d Capability register.
We pass this information to the guest IOMMU front driver so that it
can allocate appropriate IOVA.
VT-d indicates that "implementations must support MGAW at least equal
to the physical addressability (host address width) of the platform".
Thus we take the Physical Address Bits that is reported by
CPUID.80000008H as the minimum MGAW.
BUG=b:181736020
TEST=--vfio=/sys/bus/pci/devices/0000:00:14.0,iommu=on
Change-Id: I26a421ea2e7dd893d413d63ab313721cfdf0b5c1
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2757278
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: David Stevens <stevensd@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Commit-Queue: David Stevens <stevensd@chromium.org>
Make sure that file descriptors associated with GuestMemory are
inherited by each child process. Not inheriting them means that
GuestMemory thinks it owns a bunch of fds when it actually doesn't and
closing them in the child process would either lead to EBADF errors or
closing some unrelated fd.
BUG=none
TEST=CQ
Change-Id: I5475f3f9cc24cc62522066b8535693f95327cd92
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3023805
Auto-Submit: Chirantan Ekbote <chirantan@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
The flag sets a config option wayland_dmabuf which is
no longer used. Deprecating the flag first, then
a separate CL will remove it once callers no longer
set it.
BUG=b:192823933
TEST=cros_workon_make --board=nami crosvm --test
Change-Id: Iea0bc6d89ed8991351eecff357b43c8eb74c553b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3008479
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Nicholas Verne <nverne@chromium.org>
Reviewed-by: Fergus Dall <sidereal@google.com>
Reviewed-by: Chirantan Ekbote <chirantan@chromium.org>
Reusing struct minijail for multiple forked children isn't supported and
was only accidentally functional. The new minijail fixed that bug and
now the jails must be explicitly cloned to be reused.
BUG=b:187741537
TEST=CQ passes
Cq-Depend: chromium:2850757
Change-Id: I986223c7089ded4a9a55e666a13663a625d760b5
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2889652
Reviewed-by: Allen Webb <allenwebb@google.com>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Allen Webb <allenwebb@google.com>
The --cpu-cluster option can be used to report a physical grouping of
CPUs in the device tree as a "cpu-map" node:
https://www.kernel.org/doc/Documentation/devicetree/bindings/arm/topology.txt
Each instance of the --cpu-cluster option specifies a new group
consisting of a list of CPUs, and it may be repeated to add multiple
groups.
The --cpu-capacity option can be used to specify the relative
performance of CPUs so that the guest kernel's scheduler can make better
decisions on systems with heterogeneous cores (e.g. big.LITTLE).
--cpu-capacity units are left up to each architecture; for devicetree
systems, capacity is used to fill the cpu capacity-dmips-mhz (Dhrystone
benchmark MIPS per MHz) field in each cpu node:
https://www.kernel.org/doc/Documentation/devicetree/bindings/arm/cpu-capacity.txt
For example, on a trogdor board, there are 6 little cores (0-5) with a
capacity of 452, and 2 big cores (6-7) with a capacity of 1024, which
results in a crosvm command line argument of:
--cpu-capacity 0-452,1=452,2=452,3=452,4=452,5=452,6=1024,7=1024
Currently, these options only have an effect on devicetree platforms and
are ignored elsewhere; they may be expanded in the future to fill in the
equivalent ACPI tables if systems with heterogeneous CPUs are used
there.
BUG=b:182198842
TEST=Start crosvm on kevin with --cpu-cluster options
TEST=crosvm run --cpu-cluster 0,1,2,3 --cpu-cluster 4,5
Change-Id: I59c466549ccd908f8eea1da0651d82716bc82972
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2762298
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
This will be used to dynamically add and remove bus ranges when the PCI
command register is updated to enable/disable memory and IO decode.
BUG=b:174705596
TEST=cargo test -p devices
Change-Id: I6bb175e0628bf598d049562700e2f55a2a62df59
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2689081
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Tomasz Jeznach <tjeznach@chromium.org>
Reviewed-by: Tomasz Jeznach <tjeznach@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
These parameters multiplied the number of type arguments to build_vm
unnecessarily and complicated the thread of execution in the programmers
head. Closures also complicate the borrow rules, making things much
harder to change.
This change uses the results of the closures (e.g. PCI devices, IRQ
chips) as parameters instead. The rest of this change follows naturally
from pulling on that thread until tests pass.
As a result of the removal of several type arguments, the code size was
reduced by ~100KiB on a 5MiB build.
BUG=b:185170486
TEST=./test_all
Change-Id: I6bcc5eb1b1f3031d4328bb4a81ddef618d04767b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2829136
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Zach Reizner <zachr@chromium.org>
Reviewed-by: Tomasz Jeznach <tjeznach@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
hugepages (--hugepages) argument will be passed down to arch layer so that
it can configure GuestMemory to support Transparent Huge Pages.
BUG=b:174206107
TEST=arc.Boot.vm on hatch-arc-r
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Change-Id: I1590238f7be3f12c9aa22b4c9061a56bfc381332
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2812544
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Chirantan Ekbote <chirantan@chromium.org>
This CL addresses some minor issues with the existing interface:
1. from_descriptor is too generic for some platforms that require
special handling for file/File backed mappings.
2. Nearly all call sites pass either File or SharedMemory. Now
we just have from_ methods for those types to preserve type
information.
3. Other platforms require additional fields in MemoryMapping, so a
tuple struct no longer makes sense.
4. The mmap syscall error message was misleading as we use it for more
than just the mmap syscall.
BUG=None
TEST=builds
Change-Id: I74c41bad52bb81880a11231cd18f47e233548a24
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2815614
Reviewed-by: Udam Saini <udam@google.com>
Reviewed-by: Zach Reizner <zachr@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Noah Gold <nkgold@google.com>
This requires exporting the memory layout from the arch crates, but it
does simplify the bloated build_vm interface a bit. It also will allow
for more fine-grained control the backing memory of GuestMemory.
TEST=test_all
BUG=b:183988204
Change-Id: Ie76755198d2fdc2a41bd538650939d6550686b88
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2809434
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Chirantan Ekbote <chirantan@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Commit-Queue: Zach Reizner <zachr@chromium.org>
Wrap the link to the FDT spec in <> so it becomes a clickable link in
the doc output.
Also fix a parenthesized abbreviation of Devicetree Blob to be DTB
rather than FDT.
BUG=None
TEST=cargo doc
Change-Id: Ie607acb6388820e7dfdb436bdad34ff077289666
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2763204
Reviewed-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
This removes some unsafe code, improving the interface so that it cannot
be misused (e.g. previously, different Vec<u8> instances could be passed
to fdt functions that did not validate the contents).
The new implementation also adds some extra error checking to catch
invalid string values in all API entry points that accept strings, as
well as out-of-order node nesting that would result in DTB data that did
not conform to the spec.
BUG=b:175729255
TEST=cargo test -p arch
TEST=Boot Crostini on kevin (arm)
TEST=diff old and new dts from `dtc -I fs -O dts /proc/device-tree`
Change-Id: I567d562ed1b447aa0d282b68c71758edea13ffc0
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2713569
Reviewed-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Keiichi Watanabe <keiichiw@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
- Add an address space region for the protected KVM firmware.
- Query firmware size, mmap something that size and create a memslot.
BUG=b:163789172
TEST=cargo test
Change-Id: I054cf5d763c980d073c17bce70e85a781816b64d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2623942
Auto-Submit: Andrew Walbran <qwandor@google.com>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Commit-Queue: Andrew Walbran <qwandor@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Use resources allocator to assign or reserve PCI device address.
For pass-through devices it will enable 1:1 mapping to the host BDF.
Transition to address_allocator for pci address and irq allocations.
BUG=None
TEST=build_test && tast run vm.*
Change-Id: I854da9645a305b7b24acb3dd6d851c3486ed23f7
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2210848
Tested-by: Tomasz Jeznach <tjeznach@chromium.org>
Commit-Queue: Tomasz Jeznach <tjeznach@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
When a FDT's property contains multiple values, the property must be a byte
array which uses the null character ('\0') as the delimiter, but we didn't
so.
This CL fixes the format so the guest kernel can parse PSCI versions
properly.
BUG=b:174224484
TEST=arc.Reboot.vm on kukui-arc-r
Change-Id: I61a983251cdbe8c021f5999cbf5efd026bbc0c27
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2567837
Tested-by: Keiichi Watanabe <keiichiw@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Marc Zyngier <mzyngier@google.com>
Reviewed-by: Lepton Wu <lepton@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Commit-Queue: Keiichi Watanabe <keiichiw@chromium.org>
This CL wires up the powerd D-Bus PowerMonitor implementation to GoldfishBattery.
BUG=b:137890633
TEST=observe updated power data in ARCVM's /sys/class/power_supply after crrev.com/c/2550102
Change-Id: I38c613f13d3f7601435532213c7733558cb5f83f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2560276
Commit-Queue: Alex Lau <alexlau@chromium.org>
Tested-by: Alex Lau <alexlau@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
PowerMonitor trait objects can be used as a source of power supply data
and will be used by the goldfish battery. This CL includes a powerd backed
implementation of PowerMonitor available behind a feature flag which
receives updated data over D-Bus.
BUG=b:137890633
TEST=observe updated power data in ARCVM's /sys/class/power_supply at the end of this chain
Cq-Depend: chromium:2550102
Change-Id: Iacdc9bc7d11454d5b4f5d2639d19281174ad7e20
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2537349
Commit-Queue: Alex Lau <alexlau@chromium.org>
Tested-by: Alex Lau <alexlau@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Allow devices to be added to a Bus without a mutex. If a device
implements BusDeviceSync and is inserted into the Bus via the new
insert_sync function, the Bus will not lock the device before write and
read operations. This feature will allow IrqChip implementations to use
the mmio bus for APIC mmio, and allow each vcpu to write to their
respective APICs simultaneously.
This also changes the BusDevice trait so read and write functions take a
new BusAccessInfo struct. The BusAccessInfo conveys the full address of
the read/write operation, the offset of the address relative to the
device start address, and an id that in practice will hold the vcpu id
for the vcpu thread perforing the read/write.
As a result, inserts into the Bus are no longer distinguished between
full_addr and non full_addr inserts. Instead, each device's BusDevice
implementation must decide whether they use the absolute read/write
address or the relative read/write offset.
BUG=chromium:1077058
TEST=ran build_test
TEST=ran simple debian image
Change-Id: I9125aaa69869c1004b6c6a099b50f5c58038d4ab
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2514662
Reviewed-by: Zach Reizner <zachr@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Colin Downs-Razouk <colindr@google.com>
This CL transitions most structs to RawDescriptor and the
associated traits if possible.
BUG=b:162363783
TEST=./build_test
Change-Id: Iabae6ac212787836d77de2b9ffb5d451421ab0dd
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2530911
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Tested-by: Michael Hoyle <mikehoyle@google.com>
Commit-Queue: Michael Hoyle <mikehoyle@google.com>
Add a new command "battery" which is used to modify the virtual
battery/ac status.
When there is goldfish battery device model created, the command
is able to sent to the goldfish battery monitoring thread. If no,
the command won't be sent.
The supported commands are:
1. crosvm battery goldfish status <status string> crosvm.sock
2. crosvm battery goldfish health <health string> crosvm.sock
3. crosvm battery goldfish present <number> crosvm.sock
4. crosvm battery goldfish capacity <number> crosvm.sock
5. crosvm battery goldfish aconline <number> crosvm.sock
"goldfish" is the battery identifier to specify which virtual battery
is going to be modified by this command in case there are multiple
virtual batteries in the guest in future. Right now only one goldfish
battery is supported.
BUG=chromium:1050432
BUG=b:137890633
TEST=create VM with parameter "--battery" or "--battery=type=goldfish"
and boot linux guest with goldfish_battery driver enabled. From host
side, execute command "#crosvm battery goldfish status discharging
crosvm.sock" can make the guest receive an interrupt, and the status
sysfs is changed to "Discharging". Also tested the other commands
as well.
TEST=modified values are visible in ARCVM and interrupts are triggered
Change-Id: I82177811a6f2b1960f7895522760ff3b8143163f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2119574
Tested-by: Alex Lau <alexlau@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Alex Lau <alexlau@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
By opening the directory containing a socket we can use
/proc/self/fd/%d/ to get a shorter path to that socket that can fit in
the 108 character limit when the original did not.
This allows us to increase the maximum size of VM names from 21 to 63
characters.
BUG=chromium:1144639
TEST=vmc start {61 character name} - rejected
TEST=vmc start {60 character name} - works
Cq-Depend: 2517276
Disallow-Recycled-Builds: test-failures
Change-Id: Id5aba6372e3ef7840406ddf6e7553a459824c9fc
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2519335
Tested-by: Fergus Dall <sidereal@google.com>
Commit-Queue: Fergus Dall <sidereal@google.com>
Reviewed-by: Nicholas Verne <nverne@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Currently both vmlog_forwarder and crosvm will try to bind the logging
socket with the idea that one will succeed and the other will get an
error and know to connect instead. This fails because once a socket
has been bound to a file path it will continue to hold that path (and
block further binds to it) even after the process that did the bind
exits.
This means that a failed bind can mean *both* that the other party has
already bound the socket and you should connect to it, *and* that
there's an old socket holding the address which needs to be deleted.
If both sides try to connect, then an old socket will block the
connection forever. If both sides try to delete and recreate, then
neither will ever connect. What we actually do is have one side try to
delete and recreate while the other falls back to connecting. This
works when the re-creator acts first, but if the connector acts first
they will bind a socket, and then have it removed from the file-system,
and again neither side ever connects.
The only correct option is for one side to bind (deleting old sockets
if needed) and the other only ever calls connect, never binding.
Since crosvm is sending and vmlog_forwarder is receiving, and
vmlog_forwarder is already acting correctly for the bind side of this
protocol, it makes sense for crosvm to do the connecting. Therefore,
this CL makes crosvm block in create_serial_device until it succeeds in
connecting to the logging socket.
BUG=chromium:1040272
TEST=manually tested
Disallow-Recycled-Builds: test-failures
Change-Id: I45fdbb325a06fc04e2e93fb5f5d47b5b82cb8592
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2497351
Tested-by: Fergus Dall <sidereal@google.com>
Commit-Queue: Fergus Dall <sidereal@google.com>
Reviewed-by: Nicholas Verne <nverne@chromium.org>
The goldfish battery irq will be used to notify the guest driver that
battery/ac status changed. And the status changing will be done through
external crosvm commands. So the irq injection needs to be done in a
seperate thread which can receive these commands.
BUG=chromium:1050432
BUG=b:137890633
TEST=create VM with parameter "--battery" or "--battery=type=goldfish"
and boot linux guest with goldfish_battery driver enabled. The sysfs
created by the goldfish_battery driver have no issue observed.
TEST=goldfish_battery driver is loaded on ARCVM and interrupts are enabled
Change-Id: Icc902dd8c00bdcf6cb271b20d928a4081533dde6
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2119573
Commit-Queue: Alex Lau <alexlau@chromium.org>
Tested-by: Alex Lau <alexlau@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Add a flag '--gdb <port>' to provide GDB remote protocol interface so
a developer can attach GDB to the guest kernel.
In this CL, we support read/write operations for registers and memories.
BUG=chromium:1141812
TEST=Attach gdb and see register values on workstation and intel DUT
Change-Id: Ia07763870d94e87867f6df43f039196aa703ee59
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2440221
Commit-Queue: Keiichi Watanabe <keiichiw@chromium.org>
Tested-by: Keiichi Watanabe <keiichiw@chromium.org>
Auto-Submit: Keiichi Watanabe <keiichiw@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Create goldfish battery device model for guest. Provide the
minimal properties and basic accessing for the golfish_battery
driver in the guest.
BUG=chromium:1050432
BUG=b:137890633
TEST=create VM with parameter "--battery" or "--battery=type=
goldfish" and boot linux guest with goldfish_battery driver
enabled. The goldfish_battery driver is loaded successfully.
The /sys/class/power_supply/battery and
/sys/class/power_supply/ac are created successfully.
TEST=cargo test -p crosvm
TEST=goldfish_battery driver is loaded on ARCVM after crrev.com/c/2519336
Change-Id: Iaafa09e3d7e5664d3db8b7df5295f077ec3f6da9
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2119572
Commit-Queue: Alex Lau <alexlau@chromium.org>
Tested-by: Alex Lau <alexlau@chromium.org>
Reviewed-by: Tomasz Jeznach <tjeznach@chromium.org>
Along with this rename comes updating all usages to the
appropriate RawDescriptor traits. As per usual it touches
many files, but makes no significant changes.
The only remaining instance of "keep_fds" is to call out to
3p lib adhd.
BUG=b:162363783
TEST=./build_test
Change-Id: I6d292cc6404a9f84ffa5bf1320b6545a28842afa
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2488071
Commit-Queue: Michael Hoyle <mikehoyle@google.com>
Tested-by: Michael Hoyle <mikehoyle@google.com>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
This involves removing RawFd trait implementations from
Event and Timer, and resolving the echoing dependencies from
there.
Ultimately, this results mostly in changes across ioctl
(new thin layer in base), kvm, msg_on_socket, and a few other
areas. As usual, most changes are negligible.
BUG=b:162363783
TEST=./build_test
Change-Id: I47dec94666bc3430fed627b4767919c9cb4fce6f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2462330
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Michael Hoyle <mikehoyle@google.com>
This will allow IO BARs that need to be in the low (32-bit) memory
region to be allocated first, followed by device BARs, allowing device
BARs to be allocated in the low 32 bits of address space when possible.
BUG=b:169430664
TEST=Boot Crostini with GPU enabled
Change-Id: I5387b1e00ed6d5cbcff7b25e10f6115ff797c85b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2436369
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
When creating a serial device of type UnixSocket crosvm will race with
vmlog_forwarder to bind a socket to the address. This is expected to
fail in most cases, so don't log an error message if it does unless
the reason was unexpected.
BUG=none
TEST=Booted termina and checked for logs about failing to bind sockets
Disallow-Recycled-Builds: test-failures
Change-Id: I446dd803662de57221b501a6f87957035c4593de
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2494321
Tested-by: Fergus Dall <sidereal@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Auto-Submit: Fergus Dall <sidereal@google.com>
Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Virtio 1.1 introduces the VIRTIO_F_ACCESS_PLATFORM reserved feature bit,
which allows the guest operating system to discover that a virtio device
has limited access to memory. In the case of Linux, this forces the use
of the DMA API for virtio transfers, which in turn can bounce data
through a shared window that is negotiated between the guest and the
hypervisor.
Advertise the VIRTIO_F_ACCESS_PLATFORM reserved feature bit when crosvm
is running with the '--protected-vm' option.
BUG=None
TEST=./build_test
Change-Id: I78e8d9e78999790059639b64611b8081c39d24ed
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2453560
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Dylan Reid <dgreid@chromium.org>
This allows code to create references to traits such as `&dyn Vcpu` for
`&dyn IrqChip`. This also allows keeping such traits inside of opaque
`Box` like wrappers.
To achieve this, trait methods referencing `Self` have an additonal
`where` clause that restricts them to sized types. Associated types are
removed and replaced with their trait equivalents (as parameters) or an
opaque Box (as return values).
To work around certain cases where a concrete type is needed, such as
for KVM based `IrqChip` impls, the `downcast_rs` trait is used to allow
`dynamic_cast` style casting.
The binary size impact of this change is small. For comparison, here is
the size change with this commit:
armv7a -0.49% (-9 kiB)
aarch64 -0.17% (-3 kiB)
x86_64 +1.77% (+40 KiB)
BUG=None
TEST=build_test
Cq-Depend: chromium:2466660
Change-Id: I1a408734832d2971ea2979c1bc64b2ffe051b02d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2439298
Reviewed-by: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Zach Reizner <zachr@chromium.org>
When set, VCPUs aren't presented to the guest as hyperthreads,
on Intel.
Instead, present them as different, non-hyperthreaded cores on
the same package. Presenting them as hyperthreads might make the
guest scheduler migrate tasks between VCPUs more aggressively,
which can be expensive in a VM.
AMD will need a different CL.
BUG=b:169828263
TEST="cat /proc/sys/kernel/sched_domain/cpu0/domain0/name" in
the guest returns "MC" instead of "SMT" when starting crosvm
with --no-smt.
Change-Id: Ifdb4d54a3d7d83c5620fa768ce88ba1a0d85ee50
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2460534
Tested-by: kokoro <noreply+kokoro@google.com>
Tested-by: Suleiman Souhlal <suleiman@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Commit-Queue: Suleiman Souhlal <suleiman@chromium.org>
Note the CL size is large entirely due to the rename,
the changes are mostly negligible.
Also making a few small additional changes in sys_util
areas that don't need much attention in base. This includes
typedefing and adding specific imports for areas that don't
require significant interface changes.
BUG=b:162363783
TEST=./build_test
Change-Id: I4a2c9c4cdce7565806ed338e241c6b8c82c855c7
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2415180
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Michael Hoyle <mikehoyle@google.com>
This is very largely boilerplate, but changes some interfaces
to accept different parameters, esp using Descriptor.
BUG=b:162363783
TEST=./build_test
Change-Id: I81b513c0de9448c2de505fe5d3a61a29f4eccb78
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2342591
Reviewed-by: Zach Reizner <zachr@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Michael Hoyle <mikehoyle@google.com>
Allow separately specifying each VCPU thread's affinity, extending the
existing --cpu-affinity option so that it can parse a new format:
<GUEST-CPU>=<HOST-CPU-SET>[:<GUEST-CPU>=<HOST-CPU-SET>[:...]]
This can be used to pin each VCPU thread to a single host core, for
example.
Tested with this command to verify the affinity of the VCPU threads:
ps -C crosvm -T | grep vcpu | awk '{print $2}' | xargs -n1 taskset -p
BUG=b:167714813
TEST=cargo test
TEST=Run crosvm with new --cpu-affinity option; verify with taskset -p
Change-Id: Ie6c1acf954931c12b9eaa74c6ae3f67c3f062ef6
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2399639
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
Add an option to set some vcpus as real time. With a cooperative guest,
this allows for getting real time behavior for a subset of guest
threads. The guest will use cpusets to ensure that only real time tasks
are run on the real-time CPU, and that vcpu thread is real-time on the
host leading to behavior close to host real-time threads.
BUG=b:142777321
TEST=crosvm --rt-cpus 1 [OPTION]...
ps -AT -eo comm,sched,rtprio | grep crosvm_vcpu
then check the sched policy of vcpu1 is 2 (SCHED_RR)
Change-Id: Ic8e7a6840bdbce2c90e518458f6d0c50a65ca3f2
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2152167
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Reviewed-by: Suleiman Souhlal <suleiman@chromium.org>
Tested-by: Kansho Nishida <kansho@chromium.org>
Commit-Queue: Kansho Nishida <kansho@chromium.org>
Calls to the kvm crate have been replaced by calls to hypervisor and
devices::irqchip. Plugin is unchanged and still KVM-specific.
x86 creates and configures vcpus on the vcpu thread instead of the main
thread.
Code that still depends on kvm or kvm_sys:
- crosvm_plugin, plugin, and protos use kvm and kvm_sys if built with
the plugin feature
- devices::VfioGroup does a kvm_sys ioctl
- devices::irqchip and hypervisor use kvm_sys. hypervisor uses
kvm::Cap and kvm::CpuId internally for now.
BUG=chromium:1077058
TEST=runs es2gears_wayland on kukui
TEST=runs evince on amd64-generic with kernel and split irqchip
TEST=build_test excluding tpm2
TEST=cargo check --features plugin
Change-Id: I0068e34da6a5ff0079b1237be1958933bf12ffe4
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2307711
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Steven Richman <srichman@google.com>
For now, this crate simply re-exports all of sys_util, but it will
be updated to provide new interfaces when needed. This is the
first step to making crosvm not directly depend on sys_util, so
that we can make the interface changes we need without fear of
negatively affecting (i.e. completely breaking) other usages
within chromeos.
BUG=b:162363783
TEST=./build_test
Change-Id: I7d0aa3d8a1f66af1c7fee8fd649723ef17027150
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2325168
Tested-by: Michael Hoyle <mikehoyle@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Michael Hoyle <mikehoyle@google.com>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
Allow the caller of generate_pci_root to specify a maximum number of
IRQs to share between all PCI devices, and use this on x86 to limit the
total number of IRQs to fall within the number of interrupts present on
the current kernel APIC implementation.
BUG=b:161745666
BUG=chromium:1109486
TEST=Boot crosvm with many PCI devices
Change-Id: I07f0e4dab97fc952260ecacc2d84c02c77be1309
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2317899
Reviewed-by: Tomasz Jeznach <tjeznach@chromium.org>
Tested-by: Daniel Verkamp <dverkamp@chromium.org>
Commit-Queue: Lepton Wu <lepton@chromium.org>
Move GuestAddress and GuestMemory to a new crate for VM memory. This
will make separating sys_util and crosvm independent making it easier
to use sys_util functions outside of crosvm.
Change-Id: I12e14948ea85754dfa6267b3a3fb32b77ef6796e
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2311251
Auto-Submit: Dylan Reid <dgreid@chromium.org>
Commit-Queue: Dylan Reid <dgreid@chromium.org>
Tested-by: Dylan Reid <dgreid@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
BUG=chromium:1053847
TEST=Listen to the socket from VmLogForwarder, observer messages
forwarded into separate output file.
Change-Id: Ia472e34b78db599e91f63e72a13bf8539d0d6312
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2287077
Tested-by: kokoro <noreply+kokoro@google.com>
Tested-by: Nicholas Verne <nverne@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Commit-Queue: Nicholas Verne <nverne@chromium.org>
Auto-Submit: Nicholas Verne <nverne@chromium.org>
