Replace the unchecked conversion with a try_from() rather than just
truncating without warning. This gives a more useful error message when
a >4GB guest memory size is requested on a 32-bit platform.
BUG=chromium:1028747
TEST=`crosvm run -m $((5 * 1024)) ...` on kevin
Change-Id: Ib1fcf4019eefdc9ee8f93a5307802e6d6d43d01c
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1937552
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
On systems where usize is 32 bits wide (e.g. 32-bit arm), the
calculation of memory_size in bytes based on the -m configuration option
in megabytes would silently overflow when the resulting value was wider
than 32 bits.
Change the shift that converts megabytes to bytes into a checked_mul so
that a suitable error is produced if the size overflows.
Additionally, change the cfg.memory type to u64 instead of usize; this
is representing a size in megabytes, so its maximum value isn't related
to the size of an object in memory anyway, and this avoids the need for
a cast in the memory_size calculation. Requesting a memory size larger
than the crosvm process can map will still result in an error at a later
stage in guest startup.
BUG=chromium:1028747
TEST=`crosvm run -m $((5 * 1024)) ...` on kevin
Change-Id: I8fef7070bab4dafff70ed54738b26d0bb7632150
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1937551
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
if device bar is mappable, map bar's gpa to hpa in EPT, guest vcpu
could access this bar directly through EPT without trapping. This
could improve performance.
vm.add_mmio_memory could help do this, here vfio_pci send
RegisterMmapMemory request through vm_control socket to do this.
BUG=chromium:992270
TEST=none
Change-Id: I3b4274372f7dcd32e18084d55f037b6fe45ed422
Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.corp-partner.google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1581147
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
The implementations of FileReadWriteVolatile and FileReadWriteAtVolatile
for SharedMemory are never used; SharedMemory is typically accessed as a
memory mapping, not as a writable/readable file-like object. Remove the
implementation of these traits for SharedMemory to simplify porting to
other platforms where SharedMemory may not necessarily be backed by a
file-like object.
BUG=None
TEST=./build_test.py
Change-Id: I9c1e46ad2d3299b8676fad33151cde7c4b1c7b8e
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1937555
Reviewed-by: Chirantan Ekbote <chirantan@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
Two virtio descriptor_utils tests were using SharedMemory to stand in
for I/o targets with a fixed size; replace these with File to avoid
needing the FileReadWriteVolatile impl for SharedMemory, which isn't
used anywhere else in the crosvm code base.
This slightly changes the behavior under test in the reader_failing_io
test, since it was previously using the SharedMemory seal functionality
to make the region ungrowable; this is an unusual corner case, and (as
mentioned in the comment that was previously at the end of the test) it
is testing implementation details of write() on shared memory on Linux.
Instead, just use a read-only file so that write() to it will fail and
cause the same observable result.
BUG=None
TEST=./build_test.py
Change-Id: I6d62cd70791f1dec625b750ecd01cc51e307f971
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1939783
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Reviewed-by: Chirantan Ekbote <chirantan@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
The gettid syscall is used in some corners of glibc and it is a fairly
harmless syscall (we already give getpid), so this change moves it to
the common policy.
TEST=None
BUG=chromium:996938
Change-Id: I129644273f2f02fe917255c7157c48b99c329045
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1952565
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>
All virtio devices can use the same generic calculation for number of
MSI-X vectors required: number of queues plus one for configuration
changes. Move this calculation to the VirtioPciDevice implementation
and remove the Option to unconditionally enable MSI-X support for all
PCI virtio devices.
BUG=chromium:854765
TEST=Verify all virtio interrupts in /proc/interrupts are PCI-MSI
Change-Id: I5905ab52840e7617b0b342ec6ca3f75dccd16e4d
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1925169
Reviewed-by: Zide Chen <zide.chen@intel.com>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
PlaybackError and CaptureError encode the same error cases. Combine the
two into one Error type, AudioError.
BUG=None
TEST=builds
Change-Id: I44259227d67a0284c9a11c4aafd86fafe1006f8b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1925727
Reviewed-by: Chih-Yang Hsia <paulhsia@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Fletcher Woodruff <fletcherw@chromium.org>
The code in the doc comment didn't compile, fix the missing command.
Ignore the snippet because it depends on arch::__IncompleteArrayField,
and getting it to compile isn't worth adding a crate dependency.
Signed-off-by: Dylan Reid <dgreid@chromium.org>
Change-Id: Ibaee50d0d44fbfb9ca2862b1dda220a0a1e5696b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1944097
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
The virtio-fs device opens a lot of fds and needs to have a pretty high
open file limit. In order for this to be successful on Chrome OS, the
parent process (concierge) also needs to have a very high open file
limit. This unfortunately has the side-effect of raising the open file
limit for _all_ crosvm devices.
Deal with this by setting the open file limit back down to a reasonable
value (1024) for all devices that use `create_base_minijail`. This was
the value of the open file limit for concierge before the increase.
BUG=b:142344095
TEST=Check /proc/<pid>/limits for various crosvm device processes and
see that they have the proper value for "Max open files".
Change-Id: I87e3fe62fe22e68bff5ba5b60d85d39060a111dd
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1939527
Tested-by: Chirantan Ekbote <chirantan@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Auto-Submit: Chirantan Ekbote <chirantan@chromium.org>
Commit-Queue: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
This new trait allows DiskFile implementors to provide the length of the
file directly rather than using SeekFrom::End with seek().
BUG=None
TEST=./build_test
TEST=Boot Termina in crosvm
Change-Id: I9447ebb43dbd5fbb32a3a6b6d2fc969b9406cdbc
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1913961
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
This eliminates an extra seek per guest write zeroes request.
Additionally, it allows us to stop depending on the file cursor and pass
the offset directly, making multi-queue implementation easier.
BUG=chromium:858815
TEST=Boot Termina in crosvm
Change-Id: I8b15a39752a1b68597a2b1e1fd72382a484a3cb2
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1913521
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Replace the implementation of File write_zeroes with one that uses
fallocate() with the FALLOC_FL_ZERO_RANGE flag instead of
FALLOC_FL_PUNCH_HOLE. This means it will keep space allocated for the
zeroed region instead of deallocating it. The PunchHole trait is
available for this purpose instead, and the virtio-blk implementation
already relies on these two traits for their differing behaviors.
BUG=chromium:858815
TEST=cargo test -p sys_util write_zeroes
Change-Id: I69ab06037f72dc219e6ea9409654f97eeaba32c3
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1913520
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Add a variant of WriteZeroes that allows the caller to specify the
offset explicitly instead of using the file's cursor. This gets rid of
one of the last bits of shared state between disk file users, which will
help in implementing multi-queue support.
Additionally, modify the WriteZeroes trait to use a generic
implementation based on WriteZeroesAt + Seek when possible.
BUG=chromium:858815
TEST=Boot Termina in crosvm
Change-Id: If710159771aeeb55f4f7746dd4354b6c042144e8
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1913519
When vfio pass-through is enabled, guest will be very slow. The root
casue is gfn is uncachable in EPT.
From the comments in kernel vmx_get_mt_mask(vcpu, gfn, is_mmio)
function, EPT memory type with VT-d, VT-d without snooping control
feature: can't guarantee the result, try to trust guest through
kvm_mtrr_get_guest_memory_type(vcpu, gfn).
But crosvm doesn't set mtrr, so host kernel will set uncachable for all
gfn in ept.
This patch set the default cache type as WB, and set mmio cache type as
UC, so the guest ram is WB.
BUG=chromium:992270
TEST=crosvm --vfio /sys/devices/pci0000:00/0000:00:02.0, pass through
host igd into linux guest, the guest runs smoothly and guest desktop
could be shown on physical local display.
Change-Id: I151aae7835910cfbc9e38464ee901e5da281de1e
Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.corp-partner.google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1813458
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
The libminijail API defines rlim_t as an alias for rlim64_t. Change the
FFI bindings to use rlim64_t.
BUG=none
TEST=`tast run kevin vm.Virtiofs`
Change-Id: I21ece499bcef187b358574bca0918b39f5971586
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1933612
Tested-by: Chirantan Ekbote <chirantan@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Auto-Submit: Chirantan Ekbote <chirantan@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Commit-Queue: Chirantan Ekbote <chirantan@chromium.org>
This change also includes stubs for the wayland and x11 impls.
TEST=compiles
BUG=chromium:1023975
Change-Id: Ia2bcb5c2ed75ea47071dd77e149e60901a56595c
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1930407
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Reviewed-by: Noah Gold <nkgold@google.com>
Tested-by: Daniel Verkamp <dverkamp@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
The EventDevice is a data structure that allows a generic gpu display to
send and receive input events in evdev's format to a generic input
device, such as virtio-input.
BUG=chromium:1023975
TEST=None
Change-Id: Ic663cc8c7a3031aee929e09620c5430c27a25190
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1930406
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Reviewed-by: Noah Gold <nkgold@google.com>
Tested-by: Daniel Verkamp <dverkamp@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
There were already methods for the readable and hungup events, so this
completes the set.
TEST=None
BUG=chromium:1023975
Change-Id: Ie9cd1459893cc8b6ba7a52e638e164095ddbcba5
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1930404
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
Even when run on Chrome OS, the crosvm process does not have enough
privilege to add the chronos user/group to the {u,g}idmap of the 9p
device process. This was never cleaned up because we don't use the 9p
device in crostini VMs (seneschal spawns 9s servers in a separate
process tree).
Remove all references to the chronos user/group and just do what the
other devices do: use the crosvm user/group if it exists or fall back to
the current euid/egid.
BUG=chromium:1028442
TEST=Add `--shared-dir` to the command line flags of a termina VM and
see that it starts properly
Change-Id: Iad4927d37c35709aee6e15f79b316eb88483458f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1935581
Auto-Submit: Chirantan Ekbote <chirantan@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
This was unintentionally broken when changing ReadWriteVolatile to
ReadWriteVolatileAt (the composite unit tests aren't built or run by
default since they are behind a feature flag).
BUG=None
TEST=cargo test --features=composite-disk -p disk
Change-Id: I864d7063bd27a401c3d878fcd22b52e2357fde8d
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1913960
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Cody Schuffelen <schuffelen@google.com>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
libcras now depends on crosvm's sync crate; add it to Cargo.lock to
satsify non-portage builds of crosvm with cargo (otherwise cargo updates
Cargo.lock itself).
The dependency was added here:
https://chromium-review.googlesource.com/c/chromiumos/third_party/adhd/+/1871758
The pinned commit for adhd used in the Docker build is also upgraded to
the current master so that it matches.
BUG=None
TEST=`cargo build; git diff` and verify Cargo.lock was not modified
Change-Id: I53526ae2448b95c287528596099a804ec28a16d1
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1924784
noacpi is not used by the current guest linux kernel to disable ACPI.
Instead, acpi=off is the right parameter to be used.
BUG=chromium:1026497
TEST=launch crosvm linux guest and ACPI is disabled
Change-Id: I9c9001146abb57ea9dbc078ee6188b8c60cb056e
Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.corp-partner.google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1925999
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
The setres{u,g}id and the gete{u,g}id system calls on arm use 16 bit
values for uid_t and gid_t. This causes the kernel to interpret a
uid/gid of 65535 as -1, which means do nothing.
Use the 32-bit variants of these system calls instead so that we can use
32-bit values. Normally, libc would take care of hiding these kinds of
implementation details but since we can't use the libc wrappers for
these system calls, we have to do it ourselves.
BUG=b:136128319
TEST=`tast run vm.Virtiofs` on kevin
Change-Id: I6c0fda42c131e059139000828b3a53d4a73f340c
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1923569
Tested-by: Chirantan Ekbote <chirantan@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Chirantan Ekbote <chirantan@chromium.org>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Having more than one thread watch the interrupt resample event meant
that the threads would race to acknowledge the event: if thread B called
epoll_wait after thread A got a readable event for the resample eventfd
but before thread A called `read()` on the eventfd, then thread B would
also get a readable event for that eventfd. Both threads would then
attempt to acknowledge the event but only one would succeed. This would
leave the other thread blocked on the `read()` call until the resample
event became readable again.
Fix this by having only one worker watch the resample event.
BUG=b:136128319
TEST=`tast run vm.Virtiofs` on kevin
Change-Id: I5cd781a9c79ac718207a944433ea20a967735237
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1923568
Tested-by: Chirantan Ekbote <chirantan@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Chirantan Ekbote <chirantan@chromium.org>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
rlim_t is defined as an unsigned long but importantly, it is defined as
what the _kernel_ thinks is an unsigned long. This means that when you
have a 32-bit userspace and a 64-bit kernel (like we do for arm64
chromebooks), rlim_t is 64 bits.
This isn't really a problem for C and C++ code because they use the
headers from the kernel where rlim_t is properly sized but it doesn't
really work for rust. The libc crate defines rlim_t as an alias for
::std::os::raw::c_ulong, which leads to the rust compiler thinking that
it has a 32 bit width.
Hilarity ensues when you attempt to cross the rust -> C FFI barrier with
these conflicting definitions. The rust compiler thinks the parameters
can fit in 32 bit registers so it puts the `cur` parameter in r2 and the
`max` parameter in r3. On the other hand, the C code knows that the
parameters are 64-bit values and combines r2/r3 to create the 64-bit
`cur` value and uses the first 8 bytes on the stack as the `max` value.
This leads to a `cur` value that is way too large and a nonsensical
`max` value that depends on whatever happened to be on the stack at the
time.
Fix this by changing the library bindings to u64 and the
Minijail::set_rlimit parameters to rlim64_t. Once we add a method to
minijail that accepts rlim64_t's we can switch the library bindings to
use that as well.
BUG=b:136128319
TEST=`tast run vm.Virtiofs` on kevin
Change-Id: I8f58923c4768ecfe827d2a5d73c72dc778fe419c
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1916560
Reviewed-by: Chirantan Ekbote <chirantan@chromium.org>
Tested-by: Chirantan Ekbote <chirantan@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Chirantan Ekbote <chirantan@chromium.org>
From ac97 spec, SR_CELV should be synced with civ == lvi in bus_master.
intel8x0 is not using the bit but some other driver or system might be
using it.
Remove checking if new_sr equals to old_sr since update_sr will do
nothing if the input value equals to the old sr value.
Add unit tests steps to test the expected results.
BUG=chromium:1026538
TEST=Unit tests
Change-Id: I3dc9f42e2beed8e635a65dbefba44677c73fcc5b
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1925917
Tested-by: Chih-Yang Hsia <paulhsia@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Dylan Reid <dgreid@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
In bus_master control register (CR), reset registers (RR) operation is
refactored by:
- Don't call stop_audio(), since the bus master should always be in stop
state while getting this control. (From AC'97 spec: Setting it when the
Run bit is set will cause undefined consequences."). And the driver
will always disable the audio first by setting 0 to CR_RPBM bit.
- While doing the registers reset, clean up sr by using update_sr since
assigning 0 to sr directly won't unset the interrupt bit in global
status register and the driver might go into snd_intel8x0_update()
with a stopped substream.
- Introduce helper function - reset_func_regs()
Add steps in unit tests which
- Start the bus masters with "Interrupt on Completion Enable" (CR_IOCE) bit.
- Verify if the interrupt bit in global status register is set / unset.
BUG=chromium:1026538
TEST=Unit tests
Change-Id: Ie90ca4c82cc3c867992ecaeb61ef4b3e9dd0d079
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1925916
Reviewed-by: Chih-Yang Hsia <paulhsia@chromium.org>
Tested-by: Chih-Yang Hsia <paulhsia@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Dylan Reid <dgreid@chromium.org>
Add x86_64 and arm seccomp policy files for the virtio-fs device.
BUG=b:136128319
TEST=Run a vm with a sandboxed virtio-fs device
Change-Id: I8ea7c5d3e90696077f0c2b1f942cb286a0b36cf4
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1916559
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Chirantan Ekbote <chirantan@chromium.org>
Expand the `--shared-dir` option to allow callers to select between 9p
and virtio-fs for sharing directories.
BUG=b:136128319
TEST=start a VM with a virtio-fs based shared directory
Change-Id: Ie8afc1965b693805dd6000f0157786317aab060d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1705656
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Chirantan Ekbote <chirantan@chromium.org>
Fix the block_fuzzer build after CL:1906750, which added a new parameter
to the Block::new() function without updating the fuzzer.
This change passes `true` for sparse in order to keep previous behavior
and maximize the available commands for fuzzing.
BUG=chromium:1025757
TEST=`USE='asan fuzzer' emerge-nami crosvm`
Change-Id: I29ed9945077936aee9636ddee20b59729eb78c85
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1922065
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Extend the --disk option and other related options to allow a particular
disk to have the sparse operations (virtio-blk's discard command)
enabled or disabled.
By default, the sparse flag will be enabled for virtio-blk devices,
matching current behavior.
BUG=chromium:858815
TEST=Run `crosvm with --rwdisk file.img,sparse=false` and try to discard
Change-Id: Ib72c949711fbe869a3f444d7f929a80d0e039f72
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1906750
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Zach Reizner <zachr@chromium.org>
At vfio device initialization, it will probe all the defined regions,
most device don't have vga region, then when crosvm probe vga region info,
kernel vfio will return -EINVAL. So when error happens, it should continue
getting the next region info, instead of exit.
BUG=None
TEST=passthrough non graphic device into guest
Change-Id: If4d2f723df45f58ccd733e03c854cdcef3530bdb
Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.corp-partner.google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1918486
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Re-enable MSI-X for virtio-blk and virtio-net now that the underlying
issue causing hangs at startup has been fixed (CL:1917495).
BUG=chromium:1019986
TEST=Boot Termina on nami
This reverts commit 85858f580e.
Change-Id: I5a5e197243a16aee2b2aaf3145a1180749b097b2
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1918261
Reviewed-by: Zide Chen <zide.chen@intel.com>
Reviewed-by: Zach Reizner <zachr@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
The queue_evts() and interrupt_evt() functions were public, but nothing
was calling them. Remove them to clean up the unused code.
BUG=None
TEST=./build_test
Change-Id: Id36e78343869746c733bba04383ab93c9d377601
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1898270
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Zach Reizner <zachr@chromium.org>
Add handling of the virtio device MSI-X configuration change vector by
using the signal function that was previously factored out.
BUG=chromium:854765
TEST=./build_test
TEST=trigger disk config change with `crosvm disk resize ...`
Change-Id: I462c23e10d152f896586bb70b95634a53088d480
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1898269
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Zide Chen <zide.chen@intel.corp-partner.google.com>
Reviewed-by: Zach Reizner <zachr@chromium.org>
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>
This consolidates the status byte manipulation in process_one_request()
instead of requiring both that function and execute_request() to deal
with it.
The tests are modified to run the full process_one_request() function
instead of just execute_request() to exercise the full descriptor
parsing logic, and they are adapted to read the status of the request
from the status byte in the buffer from the descriptor since
process_one_request() returns successfully as long as the descriptor
parsing succeeded, even if the requested I/O failed.
BUG=None
TEST=./build_test
Change-Id: I17affabc2d3c30c810643ce260152cf34893b772
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1918479
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Reviewed-by: Chirantan Ekbote <chirantan@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
The msix entries might be changed by guest during msix maksed. The
current implementation won't update the MSIX route table in this case
which can cause KVM still inject the IRQ according to the old routing.
To fix this, we should update the msix route regardless the msix mask
status.
BUG=chromium:1023692
TEST=cargo test -p devices
Change-Id: Ifa356b3834ff454ecfca1dbdd97a7ca940d1f2b6
Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.corp-partner.google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1911721
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-by: Zide Chen <zide.chen@intel.corp-partner.google.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Previously, PciConfiguration::get_bar_addr would only correctly return
the value of a 32-bit memory region; implement support for the other
valid BAR types as well.
BUG=None
TEST=cargo test -p devices
Change-Id: I221187dfb96b31d7fead73eccf605a0886021d8b
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1880164
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
control_sockets.swap_remove() could cause host kernel to invoke
ep_remove() to remove the epoll item.
But it's called from the task work, and it could be deferred after
next poll_ctx.wait() which could unexpectedly pick up epoll events
from the already closed fd.
BUG=chromium:1019986
TEST=launch Crosvm guest from heavy loaded Linux host
Change-Id: I474a7a47a484e3acfae4383d61601e1553bd674f
Signed-off-by: Zide Chen <zide.chen@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1917495
Reviewed-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Builders should all have memfd support now.
BUG=chromium:942183
TEST=compile and run, CQ will also test
Cq-Depend: chromium:1901871, chromium:1907541
Change-Id: I0cd4ec43a51e9995def2e105d68e12a703168365
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1834701
Commit-Queue: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Tested-by: Gurchetan Singh <gurchetansingh@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Auto-Submit: Gurchetan Singh <gurchetansingh@chromium.org>
This change adds additional APIs that are present in the libminijail
header file but not in the rust thunk. In particular it adds the API
that allows pre-compiled bpf files to be used as a policy file. The
native API lacks an API to specify a filename (it only provides an API
to provide the contents of the file).
BUG=None
TEST=Local run of build_test to confirm that both .bpf and .policy files
work in a subsequent change.
Change-Id: I15510ffa857b501512f3f9905882545f407bcd78
Signed-off-by: Matt Delco <delco@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1914415
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
Performance-wise this about breaks even, but greatly simplifies the
virtio-net handling for processing received frames.
BUG=chromium:753630
TEST=crostini.NetworkPerf
Change-Id: Ie7b576020ecfe2a6cc41b7f72bd7143795a9a457
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1906996
Tested-by: kokoro <noreply+kokoro@google.com>
Tested-by: Stephen Barber <smbarber@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Commit-Queue: Stephen Barber <smbarber@chromium.org>
Don't assume the file system is running as the root user when changing
credentials. Instead keep track of the thread euid/egid and use those
when restoring thread credentials.
BUG=b:136128319
TEST=`tast run vm.VirtioFs`
Change-Id: I37d59def99cd71de68aa7f94941031a86df54329
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1890584
Tested-by: Chirantan Ekbote <chirantan@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Chirantan Ekbote <chirantan@chromium.org>
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Add _exact/_all variants of the FileReadWriteAtVolatile functions on
descriptor Reader/Writer, and use them in the block device to replace
the short read/short write error cases. This ensures all data is
read/written even if the underlying implementation (in particular,
qcow2) does not transfer the full amount of data in one
read_vectored_at_volatile/write_vectored_at_volatile call.
BUG=chromium:1023422
TEST=`mkfs.btrfs /dev/vdb` with a qcow2 disk
Change-Id: Ia37a333947f6f63faf3d4a06cfcc297309d5aff6
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1907443
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
