Commit graph

56 commits

Author SHA1 Message Date
Jingkui Wang
c13a68eecb kvm: add Debug to IoeventAddress
BUG=None
TEST=local build

Change-Id: I5edede32f4289c1e369aa46311966cfcd0c48f2c
Reviewed-on: https://chromium-review.googlesource.com/1327515
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Jingkui Wang <jkwang@google.com>
Reviewed-by: David Tolnay <dtolnay@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-12-25 17:55:09 -08:00
David Tolnay
2bac1e7a9c toolchain: Update to Rust 1.31.0
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>
2018-12-13 19:28:04 -08:00
Jingkui Wang
e13b180f74 crosvm: use msg_socket in vm_control
Refactor existing code to use msg_socket.

BUG=None
TEST=local build and run

Change-Id: Iee72326b330e035303f679e1aedd6e5d18ad4f8a
Reviewed-on: https://chromium-review.googlesource.com/1260260
Commit-Ready: Jingkui Wang <jkwang@google.com>
Tested-by: Jingkui Wang <jkwang@google.com>
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-11-19 16:28:35 -08:00
Daniel Verkamp
eeebe63c43 cargo fmt with Rust 1.30.0
Rust 1.30.0 ships a new rustfmt that causes a few more formatting
changes.

BUG=None
TEST=Run kokoro tests with updated Rust version

Change-Id: I803765ec0f3d2447f627b1e990bce438512367f7
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1307816
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Reviewed-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2018-10-31 12:42:26 -07:00
Daniel Verkamp
c1f08277f9 cargo fmt aarch64 and kvm
A few non-rustfmt changes slipped in since the tree-wide formatting
pass.

BUG=None
TEST=Re-run `cargo fmt` and verify that it makes no further changes.

Change-Id: Ic5afb20dabc1087e5d6f54862e6b8b47c5f5608d
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1287369
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2018-10-18 14:53:32 -07:00
Zach Reizner
ed31137fd0 kvm: fix clippy error about mis-aligned pointer casts
BUG=None
TEST=cargo test -p kvm

Change-Id: I43321d01a02821495fb8a8f0f03df21eacc688ee
Reviewed-on: https://chromium-review.googlesource.com/1277873
Commit-Ready: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2018-10-12 23:07:10 -07:00
Zach Reizner
7c78a3c948 kvm: fix clippy error about multiple mut references
TEST=cargo test -p kvm
BUG=None

Change-Id: I2d4552b693f253f8411199ecf4583553c80e37a6
Reviewed-on: https://chromium-review.googlesource.com/1277874
Commit-Ready: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2018-10-12 23:07:10 -07:00
Daniel Verkamp
db6edff22f kvm: refactor ioeventfd datamatch interface
This allows the caller to specify the full range of datamatch options
defined in the KVM ioeventfd API, including matching accesses of a
particular size with or without matching a specific data value.

BUG=None
TEST=cargo test -p kvm

Change-Id: I28b543f7c0b35eb2a6d47a14a33145ea00d09d1d
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1271836
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-10-11 13:25:38 -07:00
Zach Reizner
55a9e504be cargo fmt all source code
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>
2018-10-09 21:14:05 -07:00
Dmitry Torokhov
9dec40e242 kvm: fix get_msrs() to handle case where KVM does not fetch all MSRs
KVM may not return all MSRs that were requested in KVM_GET_MSRS call and
instead stop early. We should handle this case.

BUG=None
TEST=cargo test -p kvm

Change-Id: I18402c0a07b1d0c7657c171873d521fd2f223611
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1192231
Reviewed-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2018-08-31 05:22:52 -07:00
Dmitry Torokhov
45e6c843bb kvm: fix set_gsi_routing() test
We have to create irqchip in kernel before we are allowed to set up
routing.

BUG=None
TEST=cargo test -p kvm

Change-Id: Icee680ce3cc16af9cf4492c048f0b9b3cbe98d09
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1192230
Reviewed-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2018-08-31 05:22:51 -07:00
Dmitry Torokhov
c017a764d7 kvm: plumb accessor for KVM_GET_MSR_INDEX_LIST
Plumb in KVM_GET_MSR_INDEX_LIST to allow clients to figure out what MSRs
are supported.

BUG=b:111083877
TEST=cargo test -p kvm

Change-Id: I69deba32a21fb9360f8cd53001d717338523fb71
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1152228
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-07-31 16:37:06 -07:00
Slava Malyugin
d1e391b8d4 plugin: allow retrieving and setting VCPU events
Add crosvm plugin API to allow fetching and setting VCPU events.

BUG=b:110056268
TEST=cargo test --features plugin -p kvm

Change-Id: Id66230f180f4bdb95bd1850ed050e439083701cc
Reviewed-on: https://chromium-review.googlesource.com/1128045
Commit-Ready: Slava Malyugin <slavamn@chromium.org>
Tested-by: Slava Malyugin <slavamn@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-07-11 18:48:50 -07:00
Dmitry Torokhov
10668e6387 kvm: fix test for getting and setting xcrs
The extension condition was reversed, also SSE is not enabled by default
in guest VCPU, so limit the test to setting the FP bit.

BUG=b:79692549
TEST=cargo test -p kvm

Change-Id: I2959fe7dfff79703777d6254deae817fea892b00
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1062645
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-05-17 03:24:28 -07:00
Dmitry Torokhov
6051e7593a kvm: plumb accessors for VCPU XCR state
Plumb in KVM_GET_XCRS and KVM_SET_XCRS to allow saving and restoring
extended control registers of VCPUs.

BUG=b:79692549
TEST=cargo test -p kvm

Change-Id: I77dcb2ac488bf73b7503f49875d91e7c0cb21003
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1060613
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-05-16 05:08:21 -07:00
Sonny Rao
a7fae252b0 crosvm: aarch64: get kernel's preferred target type for vcpus
This fixes an issue on kevin where if we start on a little core, the
kernel doesn't like the generic ARMv8 target cpu type for some reason.  To
fix this we must query the preferred type from the vm device first and
supply that to the vcpu init ioctl.

We need to change the signature of the configure_vcpu method to pass
in the vm object even though we aren't using it on x86.

BUG=chromium:797868
TEST=./build_test passes on all architectures
TEST=crosvm runs on kevin

Change-Id: I460cb9db62a8805bb88f838956aa4f1c69183961
Reviewed-on: https://chromium-review.googlesource.com/982996
Commit-Ready: Sonny Rao <sonnyrao@chromium.org>
Tested-by: Sonny Rao <sonnyrao@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-04-03 12:50:39 -07:00
Sonny Rao
2ffa0cbe5b crosvm: aarch64 guest support
- removes old ARMv7a (32-bit) bindings as we're only supporting aarch64
  guests right now
- switches both ARMv7 and aarch64 builds to use aarch64 kvm bindings
- adds support for ARMv8 Linux guest with dynamic flattened-device-tree

CQ-DEPEND=990894
BUG=chromium:797868
TEST=./build_test passes on all architectures
TEST=crosvm runs on caroline
TEST=crosvm runs on kevin built with USE="kvm_host"

Change-Id: I7fc4fc4017ed87fd23a1bc50e3ebb05377040006
Reviewed-on: https://chromium-review.googlesource.com/969987
Commit-Ready: Sonny Rao <sonnyrao@chromium.org>
Tested-by: Sonny Rao <sonnyrao@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-04-03 12:50:37 -07:00
Dmitry Torokhov
eda8b21536 kvm: fix fetching irqchip state for PICs other than the first one
The KVM API to fetch interrupt controller state expects caller to supply
number (id) of the interrupt controller number in which state the caller
is interested. To allow crosvm to fetch the correct state and to improve
type safety we split the API into one that handles the PIC (primary and
secondary) and the one that handles IOAPIC.

BUG=b:76083711
TEST=cargo test -p kvm

Change-Id: Ia45b51cb218072a275c244af2de1b4a73a1d3352
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/986510
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-03-30 00:07:07 -07:00
Dmitry Torokhov
4757cf164b kvm: plumb accessors for VCPU MP state
Plumb in KVM_GET_MP_STATE and KVM_SET_MP_STATE to allow saving and
restoring "multiprocessing state" of VCPUs.

BUG=b:76083711
TEST=cargo test -p kvm

Change-Id: Ia6e98a09c12dcc859196908f865fac57d48b2ddd
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/982372
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2018-03-29 22:00:14 -07:00
Sonny Rao
00549b04a9 crosvm: fix documentation for SystemEvent
The documentation for the SystemEvent exit reason needs to specify
the positions for the two fields.

BUG=chromium:797868
TEST=./build_test passes on all architectures

Change-Id: Ida98ba4a6b383a1c10fa48356decc1c5264999ec
Reviewed-on: https://chromium-review.googlesource.com/986721
Commit-Ready: Sonny Rao <sonnyrao@chromium.org>
Tested-by: Sonny Rao <sonnyrao@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-03-29 19:51:34 -07:00
Sonny Rao
6ce158fb86 crosvm: support VM shutdown via SystemEvent
ARM systems don't have an exit event fd like x86, instead one of the Vcpus
will exit with the SystemEvent reason and put a code into the kvm run
union of either shutdown, reboot, or crash.  We currently don't handle
reboot or crash differently but can do so in the future.

BUG=chromium:797868
TEST=./build_test passes on all architectures
TEST=crosvm runs on kevin - manually test shutdown via maitred

Change-Id: I455cbe1ac653f61a1e9eae1ce22922d14cff4e3c
Reviewed-on: https://chromium-review.googlesource.com/982531
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Sonny Rao <sonnyrao@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2018-03-29 13:32:59 -07:00
Dmitry Torokhov
ca3a4822cc kvm: plumb accessors for IRQCHIP and PIT state
Plumb in KVM_GET_IRQCHIP/KVM_SET_IRQCHIP and KVM_GET_PIT2/KVM_SET_PIT2
to allow saving and restoring irqchip and PIT state.

BUG=b:76083711
TEST=cargo test -p kvm

Change-Id: I45a0beb3315f67af7cd9deee80dce0ca25f05001
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/981592
Reviewed-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2018-03-27 18:01:42 -07:00
Sonny Rao
657c1850ab kvm: silence a warning on non-x86 builds
We don't use this particular constant on non-x86 builds, so let's
leave it out if when it's not needed.

BUG=chromium:797868
TEST=build_test passes
TEST=crosvm runs on caroline

Change-Id: Ic752f9ae33d577d78c7df282e9803936aa181504
Reviewed-on: https://chromium-review.googlesource.com/952166
Commit-Ready: Sonny Rao <sonnyrao@chromium.org>
Tested-by: Sonny Rao <sonnyrao@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2018-03-12 12:52:39 -07:00
Dmitry Torokhov
8da6543e74 kvm: add tests for get_supported_cpuid() and get_emulated_cpuid()
TEST=cargo test -p kvm
BUG=None

Change-Id: I2af245cb94d68faf091bf6788842c1932240df3d
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/947320
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-03-08 00:37:34 -08:00
Dmitry Torokhov
e423460238 kvm: fix invocation of KVM_SET_SIGNAL_MASK ioctl
Linux kernel expects size of sigset passed in through KVM_SET_SIGNAL_MASK
ioctl to be exactly 8, but Rust's sigset size is 128 bytes, so we can
not use sizeof to set up the size.

Also let's add test set_signal_mask().

TEST=cargo test --features plugin; cargo test -p kvm; ./build_test
BUG=chromium:800626

Change-Id: Ica757ad63d6754d5c8008ba1735982c7ca026f33
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/944849
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-03-08 00:37:32 -08:00
Dmitry Torokhov
9c7508593d kvm: fix a couple of typos in comments
BUG=None
TEST=cargo test --features plugin; cargo test -p kvm

Change-Id: If3408984ebb4f9212aaaae6084353a411a7f902b
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/938845
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-02-28 21:30:22 -08:00
Dmitry Torokhov
c73d390522 kvm: plumb in KVM_GET_EMULATED_CPUID
This plumbs in KVM_GET_EMULATED_CPUID to allow userspace to figure out
whether a certain feature(s) can be used or whether they are too
expensive.

TEST=cargo test --features plugin; cargo test -p kvm
BUG=chromium:800626

Change-Id: I914415a311f40d079b1703efb5129fd91b0d24ad
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/933243
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-02-27 20:17:42 -08:00
Dmitry Torokhov
93b00ecca7 kvm: do not use negative error coded for errno-based errors
Errors derived from sysem errors delivered via -1 return code/errno
should use positive error codes, not negative, in order for them to be
recognized by other components. I.e. we should use
errno::Error::new(EINVAL) and not -EINVAL.

TEST=cargo test --features plugin; cargo test -p kvm
BUG=None

Change-Id: Ibe91745c36765c64aeab2f6aae5cd0ca8f243a42
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/939868
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-02-27 20:17:08 -08:00
Dmitry Torokhov
cda18d757b kvm: do not pass max number of cpuid entries in get_supported_cpuid()
It does not make sense to have users of the API limit number of cpuid
entries retrieved. Just have KVM select reasonable upper limit and
return the true number.

TEST=cargo test --features plugin; cargo test -p kvm
BUG=chromium:800626

Change-Id: I8ab7e8d901bc408d17c23bfe798d89f921488673
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/933242
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-02-27 17:33:20 -08:00
Dmitry Torokhov
42d194de3f kvm: plumb in KVM_SET_SIGNAL_MASK ioctl
We need this ioctl to implement race-free support for kicking/pausing VCPUs.

TEST=cargo test --features plugin; cargo test -p kvm; ./build_test
BUG=chromium:800626

Change-Id: I5dcff54f7eb34568a8d8503e0dde86b6a36ac693
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/932443
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-02-26 22:07:11 -08:00
Zach Reizner
dadb7625ea allow plugin to query for KVM extensions
The guest may need to check for KVM extensions before blindly using
them.

TEST=cargo test --features plugin; cargo test -p kvm; ./build_test
BUG=chromium:800626

Change-Id: If87b928753cd71adeabac4fc7732c3fce7265834
Reviewed-on: https://chromium-review.googlesource.com/906008
Commit-Ready: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2018-02-12 22:42:40 -08:00
Zach Reizner
7a4d7b1f50 add plugin support for model specific registers
The MSRs are useful for booting a full operating system that requires
them.

TEST=cargo test --features plugin; cargo test -p kvm; ./build_test
BUG=chromium:800626

Change-Id: I817fbf3e6868c85b373808bd48e568b5b2b458eb
Reviewed-on: https://chromium-review.googlesource.com/897412
Commit-Ready: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-02-12 22:42:36 -08:00
Zach Reizner
53528e33ed add support for accessing debug registers in the plugin process
The debug registers are useful to access for the plugin process in some
cases.

TEST=cargo test --features plugin; cargo test -p kvm; ./build_test
BUG=chromium:800626

Change-Id: I8f3f6c31c6989061a43cef948cf5b4e64bd52d30
Reviewed-on: https://chromium-review.googlesource.com/896945
Commit-Ready: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-02-12 22:42:35 -08:00
Zach Reizner
3994c3964e kvm: support irqfds with resample eventfds
The plugin process may require resample events to implement a device
properly.

TEST=cargo test -p kvm; ./build_test
BUG=chromium:800626

Change-Id: I47a3336195f212c9f6c49adfaec24757803c3b7f
Reviewed-on: https://chromium-review.googlesource.com/900489
Commit-Ready: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2018-02-06 21:32:40 -08:00
Zach Reizner
e0e8e56732 kvm: support adding read only memory to VMs
Read only memory is useful for triggering VM exits when the VM writes to
memory while allowing reads transparently and quickly. For example, a
virtual device implementation might not care if the VM reads a memory
mapped device register, but a exit would be required if the VM wrote to
the same register.

TEST=cargo test -p kvm; ./build_test
BUG=chromium:800626

Change-Id: Ic605b2cfc2a1e44941d91945f9390b9abb820040
Reviewed-on: https://chromium-review.googlesource.com/903075
Commit-Ready: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-02-06 21:32:39 -08:00
Sonny Rao
29cd40a1d6 crosvm: change GuestAddress to always be a u64
We want to be able to run 64-bit ARM kernels using a 32-bit version of
crosvm, to make it more consistent use a u64 to represent
GuestAddress.

BUG=chromium:797868
TEST=./build_test passes on all architectures
TEST=crosvm runs on caroline

Change-Id: I43bf993592caf46891e3e5e05258ab70b6bf3045
Signed-off-by: Sonny Rao <sonnyrao@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/896398
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2018-02-01 18:08:55 -08:00
Zach Reizner
e07bd96ea9 kvm: fix and test set_identity_map_addr
The kernel expects a pointer to a physical address, not a physical
address directly in the ioctl argument.

TEST=cargo test -p kvm
BUG=chromium:800626

Change-Id: I4a7298149373c00b5b9c634cd1dead7053d053c3
Reviewed-on: https://chromium-review.googlesource.com/893215
Commit-Ready: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
2018-01-30 17:47:18 -08:00
Zach Reizner
086922c222 kvm: add set_irq_routing method
This is used by the plugin process API, which may register an IRQ
routing table.

TEST=./build_test
BUG=chromium:800626

Change-Id: If40965e8abfb0c9074c90b5fc77f9042f06499e0
Reviewed-on: https://chromium-review.googlesource.com/857910
Commit-Ready: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2018-01-25 19:23:42 -08:00
Zach Reizner
d48d7f10b5 kvm: add dirty_log_bitmap_size helper
For the callers of get_dirty_log, they must pass in bitmap large enough
to hold the log. Instead of duplicating that calculation inside the
method and the caller, this change provides a public helper usable by
both to calculate the bitmap's minimum size.

TEST=./build_test
BUG=chromium:800626

Change-Id: I349aa0dd7e78e7f9ea3d35ba0acba8088fd77a4e
Reviewed-on: https://chromium-review.googlesource.com/857909
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2018-01-18 17:40:15 -08:00
Zach Reizner
0335dad57e kvm: add ioeventfd and irqfd unregister support
This is needed to support the plugin API, which might unregister such
eventfds.

BUG=chromium:800626
TEST=./build_test

Change-Id: Ic4e74ffd4b2374868644d1f6598509aba741ce00
Reviewed-on: https://chromium-review.googlesource.com/857908
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2018-01-18 17:40:14 -08:00
Zach Reizner
ee2f1fe770 sys_util: replace sysconf(_SC_PAGESIZE) with a safe wrapper
There were a few places that used this to get the page size inside of an
unsafe block, For convenience, this adds a safe wrapper in sys_util and
replaces all extant usage of sysconf with the wrapper version.

BUG=chromium:800626
TEST=./build_test

Change-Id: Ic65bf72aea90eabd4158fbdcdbe25c3f13ca93ac
Reviewed-on: https://chromium-review.googlesource.com/857907
Commit-Ready: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2018-01-10 15:44:31 -08:00
Zach Reizner
855ac29cf2 kvm: add dirty log support
This add safe support for KVM's KVM_GET_DIRTY_LOG ioctl.

TEST=./build_test
BUG=None

Change-Id: I3d0f996927844a33addd072f2bfc62361f8b7fe0
Reviewed-on: https://chromium-review.googlesource.com/848019
Commit-Ready: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-01-03 16:54:34 -08:00
Zach Reizner
df59500364 kvm: add KVM_SET_IDENTITY_MAP_ADDR ioctl
BUG=None
TEST=./build_test

Change-Id: Ic5b479487f45949fd0888af6d670293931a6a0a7
Reviewed-on: https://chromium-review.googlesource.com/848017
Commit-Ready: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
2018-01-03 14:23:23 -08:00
Zach Reizner
d60bb1616c kvm: add KVM_GET_FPU ioctl
BUG=None
TEST=./build_test

Change-Id: I38ee166d9c7a0340d58fb3fd7f51895ca158f8b3
Reviewed-on: https://chromium-review.googlesource.com/848016
Commit-Ready: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
2018-01-03 14:23:23 -08:00
Zach Reizner
ce4611cde2 kvm: open /dev/kvm with close on exec
Without this, the KVM FD may leak to child processes.

BUG=None
TEST=./build_test

Change-Id: Ic2f6db6c787d99865c2eefb40ad8993471ee82b2
Reviewed-on: https://chromium-review.googlesource.com/848015
Commit-Ready: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
2018-01-03 14:23:23 -08:00
Sonny Rao
4aa86930ed kvm_sys: update bindings and add aarch64 bindings
Re-generated the bindings for x86_64 and arm which now use union types
so a little bit of code in the library also changed, and adds bindings
for aarch64 which are required to run an aarch64 guest.

Also, I manually fixed the zero-length array cases where rust bindgen
doesn't properly align the structs.  See rust bindgen bug 684.

BUG=chromium:797868
TEST=run crosvm on x86_64, ensure networking works
TEST=./build_test passes on x86

Change-Id: Iab2193a8f1d4c68bd3346ae683c74bbf16fe45d4
Signed-off-by: Sonny Rao <sonnyrao@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/845519
Reviewed-by: Zach Reizner <zachr@chromium.org>
2018-01-02 21:32:18 -08:00
Zach Reizner
d657af628a kvm: reuse memory region slots
There is a low limit on the maximum memory slot number imposed by the
kernel. On x86_64, that limit is 509. In order to delay hitting that
limit, we attempt to use the lowest unused slot number. As memory
regions are removed from the VM, the slot for that region is stored in a
heap so that that slot number can quickly be reused next time a memory
region is added.

BUG=None
TEST=finish a game of gnome-mahjong using virtio-wayland

Change-Id: I786c2e2b8ff239c19b3c8a18bd0f6e8f8dc2acbf
Reviewed-on: https://chromium-review.googlesource.com/740102
Commit-Ready: Stephen Barber <smbarber@chromium.org>
Tested-by: Stephen Barber <smbarber@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2017-10-30 01:31:35 -07:00
Zach Reizner
bb493dd02b convert println logs to logging macros
TEST=build_test
BUG=None

Change-Id: Ia184e994e996eef427e1b50ce019403f4521f008
Reviewed-on: https://chromium-review.googlesource.com/693138
Commit-Ready: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
2017-09-29 23:25:36 -07:00
Zach Reizner
3cbded2c51 fix armv7a and aarch64 build errors and warnings
BUG=None
TEST=cargo build --target=armv7a-cros-linux-gnueabi &&
     cargo build --target=aarch64-cros-linux-gnu

Change-Id: I954c152f3c8086e24c4809dd5aabb5043fdd63af
Reviewed-on: https://chromium-review.googlesource.com/644408
Commit-Ready: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Jason Clinton <jclinton@chromium.org>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
2017-09-01 12:39:18 -07:00
Zach Reizner
56077cf863 fix compiler errors and warnings
Problems that were fixed:
  - gcc crate deprecated compile_library
  - `cargo test -p kvm` had a compile error
  - `cargo test -p kvm_sys` failed to link with libc
  - main.rs failed to include `getpid` and had dead code
  - fork.rs had a warning in `cargo test -p sys_util`
  - unused const in serial.rs

BUG=None
TEST=sudo cargo test -p data_model -p io_jail -p kernel_loader -p kvm \
     -p kvm_sys -p net_sys -p net_util -p syscall_defines -p sys_util \
     -p virtio_sys -p vhost -p x86_64 -p crosvm

Change-Id: Iaf0389013fbcdfbfaa7cf37ea1a1fc045f480ada
Reviewed-on: https://chromium-review.googlesource.com/642509
Commit-Ready: Zach Reizner <zachr@chromium.org>
Tested-by: Zach Reizner <zachr@chromium.org>
Reviewed-by: Jason Clinton <jclinton@chromium.org>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
2017-08-30 13:04:16 -07:00