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crosvm/swap/Cargo.toml

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Reland "swap: add userfaultfd wrapper" origin: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3895235 userfaultfd enables applications to handle page faults on designated memory area. vmm-swap feature uses userfaultfd to catch page fault event and swap in the guest memory from the swap file. design document: go/tanooki-phase1-dd BUG=b:215093219 TEST=cargo build --features=swap Change-Id: I36ecfe9be988a4bc451f8edaf2ab48e25c6600f4 Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4016142 Commit-Queue: Shin Kawamura <kawasin@google.com> Reviewed-by: David Stevens <stevensd@chromium.org> Reviewed-by: Dennis Kempin <denniskempin@google.com>
2022-09-14 05:18:14 +00:00
[package]
name = "swap"
version = "0.1.0"
Fix remaining Chrome/Chromium OS instances These should be written as ChromeOS and ChromiumOS (without the space) to match the updated branding. The copyright headers were already migrated to the new style (https://crrev.com/c/3894243), but there were some more instances left over. BUG=None TEST=tools/cargo-doc Change-Id: I8c76aea2eb33b2e370ab71ee9b5cc0a4cfd00585 Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4129934 Reviewed-by: Dennis Kempin <denniskempin@google.com> Commit-Queue: Daniel Verkamp <dverkamp@chromium.org>
2022-12-29 21:24:33 +00:00
authors = ["The ChromiumOS Authors"]
Reland "swap: add userfaultfd wrapper" origin: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3895235 userfaultfd enables applications to handle page faults on designated memory area. vmm-swap feature uses userfaultfd to catch page fault event and swap in the guest memory from the swap file. design document: go/tanooki-phase1-dd BUG=b:215093219 TEST=cargo build --features=swap Change-Id: I36ecfe9be988a4bc451f8edaf2ab48e25c6600f4 Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4016142 Commit-Queue: Shin Kawamura <kawasin@google.com> Reviewed-by: David Stevens <stevensd@chromium.org> Reviewed-by: Dennis Kempin <denniskempin@google.com>
2022-09-14 05:18:14 +00:00
edition = "2021"
cros_trace: Add initial trace_marker backend This CL adds a new backend for the cros_tracing crate. This backend can be enabled by building crosvm with the trace_marker feature enabled. When the feature is not enabled, no extra overhead incurs as the default NOOP cros_tracing crate will be compiled in instead. BUG=b:259501910 TEST=compiled and ran crosvm with and without `--features trace_marker` Change-Id: Ia4b929b042712a458b7d54c0362d6fda90db9e9f Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4075413 Reviewed-by: Christian Blichmann <cblichmann@google.com> Auto-Submit: Morg <morg@chromium.org> Commit-Queue: Morg <morg@chromium.org> Reviewed-by: Keiichi Watanabe <keiichiw@chromium.org>
2022-12-05 06:27:06 +00:00
[features]
trace_marker = ["cros_tracing/trace_marker"]
swap: switch page fault logger with compiler feature flag page fault logger is only for debugging purpose. It has a security concern about exposing the trigger to enable the logger. The logger will make the page fault handling slower and consumes disk resources. Instead, the page fault logger is only enabled by compiler feature flag like: ``` cargo build --features=swap,swap/log_page_fault ``` Opening a file on the monitor process is blocking the upcoming minijail migration. Open the log file on the main process and pass the file descriptor to the monitor process. BUG=b:269372016 TEST=manual test Change-Id: I5df2a32da7fb149680fa24617ffd905b2483108b Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4253287 Reviewed-by: David Stevens <stevensd@chromium.org> Commit-Queue: Shin Kawamura <kawasin@google.com>
2023-02-15 06:08:48 +00:00
log_page_fault = []
cros_trace: Add initial trace_marker backend This CL adds a new backend for the cros_tracing crate. This backend can be enabled by building crosvm with the trace_marker feature enabled. When the feature is not enabled, no extra overhead incurs as the default NOOP cros_tracing crate will be compiled in instead. BUG=b:259501910 TEST=compiled and ran crosvm with and without `--features trace_marker` Change-Id: Ia4b929b042712a458b7d54c0362d6fda90db9e9f Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4075413 Reviewed-by: Christian Blichmann <cblichmann@google.com> Auto-Submit: Morg <morg@chromium.org> Commit-Queue: Morg <morg@chromium.org> Reviewed-by: Keiichi Watanabe <keiichiw@chromium.org>
2022-12-05 06:27:06 +00:00
Add conditional compilation for unix-only crates Instead of configuring which crates to --exclude in test_config.py, we can use conditional compilation to exclude code that is not supported on windows. This allows more fine-grained control and also allows us to use plain cargo for building without complicated configuration and exclusions. BUG=b:265829867 TEST=cargo test --lib --bins --workspace --target=x86_64-pc-windows-gnu --features=all-mingw64 Change-Id: I8422c3f08053bc27d9896b220876a56bd25543d6 Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4165868 Reviewed-by: Vikram Auradkar <auradkar@google.com> Commit-Queue: Dennis Kempin <denniskempin@google.com> Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
2023-01-17 20:24:29 +00:00
[target.'cfg(unix)'.dependencies]
Reland "swap: suspend device processes using SIGSTOP signal" origin: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3932497 ProcessesGuard stops all the crosvm processes except the caller process using SIGSTOP signal because we must guarantee that no one changes the guest memory contents while vmm-swap out. This is a short term solution and will be replaced with device suspension feature later. See the "Write back atomicity" section in go/tanooki-phase1-dd BUG=b:215093219 TEST=cargo build --features=swap Change-Id: I34e528bf318e5ff9277048f3daf8608e7b09ddc7 Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4016145 Reviewed-by: David Stevens <stevensd@chromium.org> Commit-Queue: Shin Kawamura <kawasin@google.com>
2022-10-03 07:53:15 +00:00
anyhow = "*"
Reland "swap: add userfaultfd wrapper" origin: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3895235 userfaultfd enables applications to handle page faults on designated memory area. vmm-swap feature uses userfaultfd to catch page fault event and swap in the guest memory from the swap file. design document: go/tanooki-phase1-dd BUG=b:215093219 TEST=cargo build --features=swap Change-Id: I36ecfe9be988a4bc451f8edaf2ab48e25c6600f4 Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4016142 Commit-Queue: Shin Kawamura <kawasin@google.com> Reviewed-by: David Stevens <stevensd@chromium.org> Reviewed-by: Dennis Kempin <denniskempin@google.com>
2022-09-14 05:18:14 +00:00
base = { path = "../base" }
cros_trace: Add initial trace_marker backend This CL adds a new backend for the cros_tracing crate. This backend can be enabled by building crosvm with the trace_marker feature enabled. When the feature is not enabled, no extra overhead incurs as the default NOOP cros_tracing crate will be compiled in instead. BUG=b:259501910 TEST=compiled and ran crosvm with and without `--features trace_marker` Change-Id: Ia4b929b042712a458b7d54c0362d6fda90db9e9f Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4075413 Reviewed-by: Christian Blichmann <cblichmann@google.com> Auto-Submit: Morg <morg@chromium.org> Commit-Queue: Morg <morg@chromium.org> Reviewed-by: Keiichi Watanabe <keiichiw@chromium.org>
2022-12-05 06:27:06 +00:00
cros_tracing = { path = "../cros_tracing" }
crosvm: pre-release alpha for data_model data_model is probably going away in the future, but until we can release it as pre-release alpha for internal efforts. (context: https://fxbug.dev/114169) BUG=b:173630595 TEST=compile Change-Id: Ie13ec3ab9083d315c78a035b532132296a8fb651 Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4082333 Reviewed-by: Dennis Kempin <denniskempin@google.com> Commit-Queue: Gurchetan Singh <gurchetansingh@chromium.org>
2022-12-06 20:38:11 +00:00
data_model = { path = "../common/data_model" }
Reland "swap: add userfaultfd wrapper" origin: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3895235 userfaultfd enables applications to handle page faults on designated memory area. vmm-swap feature uses userfaultfd to catch page fault event and swap in the guest memory from the swap file. design document: go/tanooki-phase1-dd BUG=b:215093219 TEST=cargo build --features=swap Change-Id: I36ecfe9be988a4bc451f8edaf2ab48e25c6600f4 Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4016142 Commit-Queue: Shin Kawamura <kawasin@google.com> Reviewed-by: David Stevens <stevensd@chromium.org> Reviewed-by: Dennis Kempin <denniskempin@google.com>
2022-09-14 05:18:14 +00:00
libc = "*"
swap: add commands for vmm-swap out Added new crosvm commands "crosvm swap enable" and "crosvm swap status". swap crate exposes SwapController to control the vmm-swap feature. When vmm-swap is enabled, all the pages on the GuestMemory are swapped out to a file and are freed to give a lot of memory back to OS. design document: go/tanooki-phase1-dd BUG=b:215093219 TEST=manually tested Change-Id: Ideb10b0119edd9f47b66c8ac61add21ac08181d4 Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3871758 Reviewed-by: David Stevens <stevensd@chromium.org> Commit-Queue: Shin Kawamura <kawasin@google.com>
2022-09-02 15:49:50 +00:00
minijail = "*"
swap: move guest memory to staging memory on multi thread Enabling vmm-swap copies all the guest memory to the staging memory while freezing whole the crosvm. Reducing the latency of it is important. The most time consuming part of enabing vmm-swap is pure memory copy which easily can be executed on the multi-thread. BUG=b:263830401 TEST=cargo test -p swap Change-Id: I307ad1c459158113cc654e7ba1541381a38b65bb Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4142083 Reviewed-by: David Stevens <stevensd@chromium.org> Commit-Queue: Shin Kawamura <kawasin@google.com> Reviewed-by: Dennis Kempin <denniskempin@google.com>
2023-01-06 09:35:25 +00:00
num_cpus = "*"
swap: add helpers for pagesize Using the cached page size shift has several performance benefits listed at the comment of the file. BUG=b:260543132 TEST=cargo test -p swap Change-Id: Ic7a19135b7a2e29c032c73fa7dca1d853cdb5e48 Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4125177 Reviewed-by: David Stevens <stevensd@chromium.org> Reviewed-by: Dennis Kempin <denniskempin@google.com> Commit-Queue: Shin Kawamura <kawasin@google.com>
2022-12-26 04:18:33 +00:00
once_cell = "*"
swap: add commands for vmm-swap out Added new crosvm commands "crosvm swap enable" and "crosvm swap status". swap crate exposes SwapController to control the vmm-swap feature. When vmm-swap is enabled, all the pages on the GuestMemory are swapped out to a file and are freed to give a lot of memory back to OS. design document: go/tanooki-phase1-dd BUG=b:215093219 TEST=manually tested Change-Id: Ideb10b0119edd9f47b66c8ac61add21ac08181d4 Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3871758 Reviewed-by: David Stevens <stevensd@chromium.org> Commit-Queue: Shin Kawamura <kawasin@google.com>
2022-09-02 15:49:50 +00:00
remain = "*"
serde = { version = "1", features = [ "derive" ] }
swap: log page fault event The new command "crosvm swap log_pagefault <socket>" starts logging page fault events. The log file "page_fault.log" will be located under the swap directory. Pagefault event log help up debugging the vmm-swap feature and understand the memory usage of the guest os. design document: go/tanooki-phase1-dd BUG=b:253555760 TEST=manually tested. this is debug feature. Change-Id: I13e36cef873cd83179032fe8a289c8df71384644 Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3954806 Reviewed-by: Daniel Verkamp <dverkamp@chromium.org> Reviewed-by: David Stevens <stevensd@chromium.org> Commit-Queue: Shin Kawamura <kawasin@google.com>
2022-10-14 08:06:52 +00:00
serde_json = "*"
swap: add commands for vmm-swap out Added new crosvm commands "crosvm swap enable" and "crosvm swap status". swap crate exposes SwapController to control the vmm-swap feature. When vmm-swap is enabled, all the pages on the GuestMemory are swapped out to a file and are freed to give a lot of memory back to OS. design document: go/tanooki-phase1-dd BUG=b:215093219 TEST=manually tested Change-Id: Ideb10b0119edd9f47b66c8ac61add21ac08181d4 Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3871758 Reviewed-by: David Stevens <stevensd@chromium.org> Commit-Queue: Shin Kawamura <kawasin@google.com>
2022-09-02 15:49:50 +00:00
sync = { path = "../common/sync" } # provided by ebuild
Reland "swap: add swap file" origin: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3930082 SwapFile saves the active pages in the memory region to a file. design document: go/tanooki-phase1-dd BUG=b:215093219 TEST=cargo test -p swap Change-Id: Idce637ed069665e174b36c21a32afdad2f00fea1 Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4016143 Reviewed-by: David Stevens <stevensd@chromium.org> Commit-Queue: Shin Kawamura <kawasin@google.com>
2022-09-30 15:36:52 +00:00
tempfile = "*"
thiserror = "*"
swap: create userfaultfd from /dev/userfaultfd userfaultfd(2) syscall requires CAP_SYS_PTRACE of root user namespace. For better permission control /dev/userfaultfd was introduced from Linux 6.1. Since ARCVM runs inside a sandbox user namespace and enabling /proc/sys/vm/unprivileged_userfaultfd opens up userfaultfd to the entire system, crosvm for ARCVM has to use /dev/userfaultfd to create a userfaultfd. For systems which do not have /dev/userfaultfd, the Factory falls back to userfaultfd(2). BUG=b:268145007 BUG=b:266642532 TEST=manual test Change-Id: I44b657877093d2a75627432619c1233b7ac2464e Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4196763 Commit-Queue: Shin Kawamura <kawasin@google.com> Reviewed-by: Dennis Kempin <denniskempin@google.com> Reviewed-by: David Stevens <stevensd@chromium.org> Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
2023-01-30 08:33:38 +00:00
userfaultfd-sys = "0.4.2"
Reland "swap: add userfaultfd wrapper" origin: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3895235 userfaultfd enables applications to handle page faults on designated memory area. vmm-swap feature uses userfaultfd to catch page fault event and swap in the guest memory from the swap file. design document: go/tanooki-phase1-dd BUG=b:215093219 TEST=cargo build --features=swap Change-Id: I36ecfe9be988a4bc451f8edaf2ab48e25c6600f4 Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/4016142 Commit-Queue: Shin Kawamura <kawasin@google.com> Reviewed-by: David Stevens <stevensd@chromium.org> Reviewed-by: Dennis Kempin <denniskempin@google.com>
2022-09-14 05:18:14 +00:00
userfaultfd = "0.5.0"
swap: add commands for vmm-swap out Added new crosvm commands "crosvm swap enable" and "crosvm swap status". swap crate exposes SwapController to control the vmm-swap feature. When vmm-swap is enabled, all the pages on the GuestMemory are swapped out to a file and are freed to give a lot of memory back to OS. design document: go/tanooki-phase1-dd BUG=b:215093219 TEST=manually tested Change-Id: Ideb10b0119edd9f47b66c8ac61add21ac08181d4 Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3871758 Reviewed-by: David Stevens <stevensd@chromium.org> Commit-Queue: Shin Kawamura <kawasin@google.com>
2022-09-02 15:49:50 +00:00
vm_memory = { path = "../vm_memory"}
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