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path: root/devices/src/ioapic.rs
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* crosvm: Add plumbing for split-irqchip interruptsZhuocheng Ding2020-03-05
| | | | | | | | | | | | | | | Devices use irqfd to inject interrupts, we listen to them in the main thread and activate userspace pic/ioapic accordingly. BUG=chromium:908689 TEST=lanuch linux guest with `--split-irqchip` flag Change-Id: If30d17ce7ec9e26dba782c89cc1b9b2ff897a70d Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1945798 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Stephen Barber <smbarber@chromium.org> Reviewed-by: Daniel Verkamp <dverkamp@chromium.org> Commit-Queue: Zhuocheng Ding <zhuocheng.ding@intel.corp-partner.google.com>
* Add logic to setup PIC/IOAPIC.Zhuocheng Ding2020-03-05
| | | | | | | | | | | | | TODO: Route irqfd to PIC/IOAPIC to make them fully work. BUG=chromium:908689 TEST=None Change-Id: I301287b1cf32cfccffce6c52ebbb5e123931178e Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1945796 Reviewed-by: Daniel Verkamp <dverkamp@chromium.org> Tested-by: kokoro <noreply+kokoro@google.com> Commit-Queue: Zhuocheng Ding <zhuocheng.ding@intel.corp-partner.google.com>
* devices: IOAPIC: implement interrupt routingZhuocheng Ding2020-02-21
| | | | | | | | | | | | | | This change implements MSI routing and injection, so that service_irq can actually inject an interrupt into guest. BUG=chromium:908689 TEST=Unit tests in file. Change-Id: I2db4f00f569db56f5765c707faaa87c64fd3da9f Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1945795 Reviewed-by: Stephen Barber <smbarber@chromium.org> Tested-by: kokoro <noreply+kokoro@google.com> Commit-Queue: Zhuocheng Ding <zhuocheng.ding@intel.corp-partner.google.com>
* devices: IOAPIC: ignore interrupt polarityZhuocheng Ding2019-12-10
| | | | | | | | | | | | | | | | Interrupt polarity is ignored by kvm since 3.15, and the irqfd interface does not support polarity. We should not consider polarity either. BUG=chromium:908689 TEST=Unit tests in file. Integration testing is blocked on rest of split-irqchip being implemented. Change-Id: Ibae23b81274f867bbf56009854611628dbb4c154 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1945793 Commit-Queue: Zhuocheng Ding <zhuocheng.ding@intel.corp-partner.google.com> Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Daniel Verkamp <dverkamp@chromium.org> Reviewed-by: Stephen Barber <smbarber@chromium.org>
* Remove unneeded return statementsDaniel Verkamp2019-11-08
| | | | | | | | | | | BUG=None TEST=bin/clippy Change-Id: I2cf3b961baefd21fedaa6b545c1c7ecfb25a9efc Signed-off-by: Daniel Verkamp <dverkamp@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1896088 Reviewed-by: Zach Reizner <zachr@chromium.org> Tested-by: kokoro <noreply+kokoro@google.com>
* devices: Complete IOAPIC implementation.Miriam Zimmerman2019-04-17
| | | | | | | | | | | | | Still TODO: Interrupt routing (and tests for that). BUG=chromium:908689 TEST=Unit tests in file. Integration testing is blocked on rest of split-irqchip being implemented. Change-Id: I08c187c44e49889ffc47322ede0f1223c6265757 Reviewed-on: https://chromium-review.googlesource.com/1565306 Commit-Ready: Miriam Zimmerman <mutexlox@chromium.org> Tested-by: Miriam Zimmerman <mutexlox@chromium.org> Reviewed-by: David Tolnay <dtolnay@chromium.org>
* edition: Eliminate blocks superseded by NLLDavid Tolnay2019-04-17
| | | | | | | | | | | | | | | | | | | | Before the new borrow checker in the 2018 edition, we sometimes used to have to manually insert curly braced blocks to limit the scope of borrows. These are no longer needed. Details in: https://doc.rust-lang.org/edition-guide/rust-2018/ownership-and-lifetimes/non-lexical-lifetimes.html TEST=cargo check --all-features TEST=local kokoro Change-Id: I59f9f98dcc03c8790c53e080a527ad9b68c8d6f3 Reviewed-on: https://chromium-review.googlesource.com/1568075 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>
* edition: Fill in macro importsDavid Tolnay2019-04-15
| | | | | | | | | | | | | | | | | | | | 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>
* edition: Update devices crate to 2018 editionDavid Tolnay2019-04-15
| | | | | | | | | | | | | | | | | | | Separated out of CL:1513058 to make it possible to land parts individually while the affected crate has no other significant CLs pending. This avoids repeatedly introducing non-textual conflicts with new code that adds `use` statements. TEST=cargo check TEST=cargo check --all-features TEST=cargo check --target aarch64-unknown-linux-gnu Change-Id: I964a198b54dfa7b98fa2f49a404fda3d09c0f44f Reviewed-on: https://chromium-review.googlesource.com/1519693 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>
* devices: Start to implement IOAPIC.Miriam Zimmerman2019-04-12
| | | | | | | | | | | | | | | | | | This change implements service_irq, end_of_interrupt, and just enough to add some basic tests for those. Still TODO: Interrupt routing (and tests for that) and tests that require additional functionality. BUG=chromium:908689 TEST=Unit tests in file. Integration testing is blocked on rest of split-irqchip being implemented. Change-Id: Ia8418f9a8bec92b53d99cdafb92f05f82eafa2b1 Reviewed-on: https://chromium-review.googlesource.com/1558935 Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com> Tested-by: Miriam Zimmerman <mutexlox@chromium.org> Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: David Tolnay <dtolnay@chromium.org>
* edition: Use 2018-style paths in devices crateDavid Tolnay2019-04-09
| | | | | | | | | | | | | | | | These are import paths in new code added since CL:1513054 that need to be made compatible with 2018 edition's treatment of paths. TEST=cargo check TEST=cargo check --all-features TEST=cargo check --target aarch64-unknown-linux-gnu Change-Id: Icb3ecf2fb2015332e0c03cdc22bff2ecab2c40df Reviewed-on: https://chromium-review.googlesource.com/1559264 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>
* Add IOAPIC device skeleton.Miriam Zimmerman2019-03-16
This CL adds some necessary constants and types, as well as a few skeleton function declarations, for an IOAPIC device. I'm sending this CL first in the interest of minimizing CL size and making future CLs easier to review. TEST=Built BUG=chromium:908689 Change-Id: Ib8ae37e0092c31d7cb8073070f9592baed236323 Reviewed-on: https://chromium-review.googlesource.com/1520809 Commit-Ready: David Tolnay <dtolnay@chromium.org> Tested-by: Miriam Zimmerman <mutexlox@chromium.org> Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: David Tolnay <dtolnay@chromium.org>
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