| Commit message (Collapse) | Author | Age |
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Fix clippy 1.43.0 clippy::single-component-path-imports warnings.
BUG=None
TEST=bin/clippy
Change-Id: I3f4f54138bedce16dc1ca937bb8bc00a94594f69
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2163203
Reviewed-by: Zach Reizner <zachr@chromium.org>
Tested-by: Daniel Verkamp <dverkamp@chromium.org>
Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
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Factor out the common creation of struct Interrupt.
No functional change.
BUG=chromium:854765
TEST=./build_test
Change-Id: Idf8804771ba1af5181818f643e15e1b42918258a
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1898268
Tested-by: kokoro <noreply+kokoro@google.com>
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The code to inject interrupt to the guest can be generic to all
virtio devices. This patch:
- move those guest interrupt related fields out of Worker structure and
put in a separate file, making the worker code cleaner.
- remove redandant functions across virtio devices: signal_used_queue(),
signal_config_changed(), etc.
BUG=chromium:854765
TEST=sanity test on eve and Linux
TEST=cargo test -p devices
Change-Id: I8e9f760f2057f192fdc74d16a59fea2e6b08c194
Signed-off-by: Zide Chen <zide.chen@intel.corp-partner.google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1869553
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Tested-by: Daniel Verkamp <dverkamp@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
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The MsixConfig struct is responsible for all the operations of MSI-X
Capability Structure and MSI-X Table.
A msix_config object is created for each virtio device.
BUG=chromium:854765
TEST=cargo test -p devices
Change-Id: Ide7c34d335d49a201f20b0a4307bcda97d1d61b7
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.corp-partner.google.com>
Signed-off-by: Zide Chen <zide.chen@intel.corp-partner.google.com>
Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.corp-partner.google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1828337
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Tested-by: Daniel Verkamp <dverkamp@chromium.org>
Commit-Queue: Stephen Barber <smbarber@chromium.org>
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Refactor the Reader and Writer implementations for DescriptorChains.
This has several changes:
* Change the DescriptorChainConsumer to keep a
VecDeque<VolatileSlice> instead of an iterator. This delegates the
fiddly business of sub-slicing chunks of memory to the VolatileSlice
implementation.
* Read in the entire DescriptorChain once when the Reader or Writer is
first constructed. This allows us to validate the DescriptorChain
in the beginning rather than having to deal with an invalid
DescriptorChain in the middle of the device operating on it.
Combined with the check that enforces the ordering of read/write
descriptors in a previous change we can be sure that the entire
descriptor chain that we have copied in is valid.
* Add a new `split_at` method so that we can split the Reader/Writer
into multiple pieces, each responsible for reading/writing a
separate part of the DescriptorChain. This is particularly useful
for implementing zero-copy data transfer as we sometimes need to
write the data first and then update an earlier part of the buffer
with the number of bytes written.
* Stop caching the available bytes in the DescriptorChain. The
previous implementation iterated over the remaining descriptors in
the chain and then only updated the cached value. If a mis-behaving
guest then changed one of the later descriptors, the cached value
would no longer be valid.
* Check for integer overflow when calculating the number of bytes
available in the chain. A guest could fill a chain with five 1GB
descriptors and cause an integer overflow on a 32-bit machine.
This would previously crash the device process since we compile with
integer overflow checks enabled but it would be better to return an
error instead.
* Clean up the Read/Write impls. Having 2 different functions called
`read`, with different behavior is just confusing. Consolidate on
the Read/Write traits from `std::io`.
* Change the `read_to` and `write_from` functions to be generic over
types that implement `FileReadWriteVolatile` since we are not
allowed to assume that it's safe to call read or write on something
just because it implements `AsRawFd`. Also add `*at` variants that
read or write to a particular offset rather than the kernel offset.
* Change the callback passed to the `consume` function of
`DescriptorChainConsumer` to take a `&[VolatileSlice]` instead.
This way we can use the `*vectored` versions of some methods to
reduce the number of I/O syscalls we need to make.
* Change the `Result` types that are returned. Functions that perform
I/O return an `io::Result`. Functions that only work on guest
memory return a `guest_memory::Result`. This makes it easier to
inter-operate with the functions from `std::io`.
* Change some u64/u32 parameters to usize to avoid having to convert
back and forth between the two in various places.
BUG=b:136128319
TEST=unit tests
Change-Id: I15102f7b4035d66b5ce0891df42b656411e8279f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1757240
Auto-Submit: Chirantan Ekbote <chirantan@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
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Add a new virtio configuration copying function to replace all of the
slightly varying read_config() and write_config() implementations in our
virtio devices. This replaces a lot of tricky bounds-checking code with
a single central implementation, simplifying the devices to a single
call to copy_config() in most cases.
The balloon device is also changed to represent its config space as a
DataInit struct to match most other devices and remove several unwrap()
calls.
BUG=None
TEST=./build_test
TEST=Boot vm_kernel+vm_rootfs in crosvm
TEST=Start Crostini on nami
Change-Id: Ia49bd6dbe609d17455b9562086bc0b24f327be3f
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1749562
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
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The old method of creating a PollContext and calling `add` inside of
`and_then` chains was an ugly way handle the Results that can crop up
after each call. The `build_with` function is equivalent but operates on
a slice which has way less boilerplate.
TEST=./build_test
BUG=None
Change-Id: I8b0d6532680e04c501187397bd211014a2363c25
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1715581
Tested-by: Zach Reizner <zachr@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Auto-Submit: Zach Reizner <zachr@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Commit-Queue: Zach Reizner <zachr@chromium.org>
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This change adds a convinient interface over DescriptorChain. It hides
the complexity of DescriptorChain and allows to treat it as a pair
of read-only and write-only buffers. In the future, it will also allow
to easily support indirect descriptors.
BUG=chromium:966258
TEST=cargo test --package devices descriptor_utils
TEST=run crosvm without sandbox, share a directory, compare
checksum of shared file between host and guest
Change-Id: I9fb722ee2024c8d7d40f560571ec7d7c454bfc2b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1647370
Reviewed-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Jakub Staroń <jstaron@google.com>
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BUG=None
TEST=tast run ${IP} vm.CrostiniStartEverything
Change-Id: I14bdc330bff23ef3397251a81bdf63e37c1e1dfd
Reviewed-on: https://chromium-review.googlesource.com/1611014
Commit-Ready: Jakub Staroń <jstaron@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
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Macros were previously imported through `#[macro_use] extern crate`,
which is basically a glob import of all macros from the crate. As of
2018 edition of Rust, `extern crate` is no longer required and macros
are imported individually like any other item from a dependency. This CL
fills in all the appropriate macro imports that will allow us to remove
our use of `extern crate` in a subsequent CL.
TEST=cargo check --all-features --tests
TEST=kokoro
Change-Id: If2ec08b06b743abf5f62677c6a9927c3d5d90a54
Reviewed-on: https://chromium-review.googlesource.com/1565546
Commit-Ready: David Tolnay <dtolnay@chromium.org>
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: David Tolnay <dtolnay@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: David Tolnay <dtolnay@chromium.org>
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The description method is deprecated and its signature forces less
helpful error messages than what Display can provide.
BUG=none
TEST=cargo check --all-features
TEST=cargo check --target aarch64-unknown-linux-gnu
Change-Id: I27fc99d59d0ef457c5273dc53e4c563ef439c2c0
Reviewed-on: https://chromium-review.googlesource.com/1497735
Commit-Ready: David Tolnay <dtolnay@chromium.org>
Tested-by: David Tolnay <dtolnay@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
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I have been running into Debug-printed error messages too often and
needing to look up in the source code each level of nested errors to
find out from the comment on the error variant what the short name of
the variant means in human terms. Worse, many errors (like the one shown
below) already had error strings written but were being printed from the
calling code in the less helpful Debug representation anyway.
Before:
[ERROR:src/main.rs:705] The architecture failed to build the vm: NoVarEmpty
After:
[ERROR:src/main.rs:705] The architecture failed to build the vm: /var/empty doesn't exist, can't jail devices.
TEST=cargo check --all-features
TEST=FEATURES=test emerge-amd64-generic crosvm
Change-Id: I77122c7d6861b2d610de2fff718896918ab21e10
Reviewed-on: https://chromium-review.googlesource.com/1469225
Commit-Ready: David Tolnay <dtolnay@chromium.org>
Tested-by: David Tolnay <dtolnay@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
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Add GuestMemory::write_all_at_addr, GuestMemory::read_exact_at_addr
which return error if the entire write or read cannot be completed.
Also rename write_slice_at_addr to write_at_addr, read_slice_at_addr to
read_at_addr to make the entire set of four methods consistent in naming
with the methods of std::io::Write and std::io::Read.
Context:
https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1387624/16/devices/src/virtio/tpm.rs#75
TEST=cargo test
Change-Id: Ia0775b75281ccf8030c84b41f9018a511204b8c9
Reviewed-on: https://chromium-review.googlesource.com/1407156
Commit-Ready: David Tolnay <dtolnay@chromium.org>
Tested-by: David Tolnay <dtolnay@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
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We updated the production toolchain from 1.30 to 1.31 in CL:1366446.
This CL does the same upgrade for the local developer toolchain and
Kokoro.
The relevant changes are in rust-toolchain and kokoro/Dockerfile.
The rest are from rustfmt.
TEST=cargo fmt --all -- --check
TEST=as described in kokoro/README.md
Change-Id: I3b4913f3e237baa36c664b4953be360c09efffd4
Reviewed-on: https://chromium-review.googlesource.com/1374376
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: David Tolnay <dtolnay@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
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Hopefully the changes are self-explanatory and uncontroversial. This
eliminates much of the noise from `cargo clippy` and, for my purposes,
gives me a reasonable way to use it as a tool when writing and reviewing
code.
Here is the Clippy invocation I was using:
cargo +nightly clippy -- -W clippy::correctness -A renamed_and_removed_lints -Aclippy::{blacklisted_name,borrowed_box,cast_lossless,cast_ptr_alignment,enum_variant_names,identity_op,if_same_then_else,mut_from_ref,needless_pass_by_value,new_without_default,new_without_default_derive,or_fun_call,ptr_arg,should_implement_trait,single_match,too_many_arguments,trivially_copy_pass_by_ref,unreadable_literal,unsafe_vector_initialization,useless_transmute}
TEST=cargo check --features wl-dmabuf,gpu,usb-emulation
TEST=boot linux
Change-Id: I55eb1b4a72beb2f762480e3333a921909314a0a2
Reviewed-on: https://chromium-review.googlesource.com/1356911
Commit-Ready: David Tolnay <dtolnay@chromium.org>
Tested-by: David Tolnay <dtolnay@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
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The virtio specification only defines feature bits in the 0-63 range
currently, so we can represent the features as a u64. The Linux kernel
makes the same simplifying assumption, and very few features have been
defined beyond the first 32 bits, so this is probably safe for a while.
This allows the device models to be simplified, since they no longer
need to deal with the features paging mechanism (it is handled by the
generic virtio transport code).
BUG=None
TEST=build_test; boot termina on kevin
Change-Id: I6fd86907b2bdf494466c205e85072ebfeb7f5b73
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1313012
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
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Register the irqfd with resample support so that we can correctly
emulate level-triggered interrupts. This requires each PciDevice to
listen for interrupt_resample events and re-assert the IRQ eventfd if it
should still be active.
BUG=None
TEST=Boot crosvm on x86-64 and arm devices
Change-Id: I5cf8d1d1705cf675b453962c00d2d606801fee91
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1298654
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
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Now that cargo fmt has landed, run it over everything at once to bring
rust source to the standard formatting.
TEST=cargo test
BUG=None
Change-Id: Ic95a48725e5a40dcbd33ba6d5aef2bd01e91865b
Reviewed-on: https://chromium-review.googlesource.com/1259287
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
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Implement a new virtio_9p device to be used for sharing directories with
the VM.
BUG=chromium:703939
TEST=mount inside a VM and run `bonnie++ -r 256`
Append the shared directory to the crosvm command line:
--shared-dir /path/to/dir:test_9p
Then mount in the guest:
mkdir /tmp/9p
mount -t 9p -o trans=virtio test_9p /tmp/9p -oversion=9p2000.L
Or for a 9p root:
run --shared-dir /mnt/vm_root:/dev/root -p 'root=/dev/root ro rootflags=ro,trans=virtio,version=9p2000.L,cache=loose rootfstype=9p' vmlinux.bin
CQ-DEPEND=CL:1065170
Change-Id: I41fc21306ab5fa318a271f172d7057b767b29f31
Signed-off-by: Chirantan Ekbote <chirantan@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1065173
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
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