| commit | ab50403924292ca48b462064b98dddb7a44ed13d | [log] [tgz] |
|---|---|---|
| author | Dmytro Maluka <dmy@semihalf.com> | Fri Feb 25 18:31:11 2022 +0000 |
| committer | Commit Bot <commit-bot@chromium.org> | Mon Mar 21 09:16:43 2022 +0000 |
| tree | f1950e6797f4238cacc6362f0afa060e45073225 | |
| parent | 3323fc3530b05ae390eea9ddb43dc01bcf368db7 [diff] |
acpi: event listener: ignore events for direct GPEs Ignore ACPI netlink events for GPEs which are configured as direct GPEs. Such GPEs are forwarded to the guest directly as physical GPEs using eventfd based forwarding of physical SCI interrupts (which ensures that the GPE handling in the guest is synchronized with SCI interrupt context in the host). Forwarding via netlink should be used for emulated GPEs only. With this change, we are still propagating all GPE events received by the host to the guest. In the future we may need to enhance this logic, since for some types of GPEs we may not want to inject them to the guest at all, e.g. for Thunderbolt hotplug GPE we want to receive it in crosvm and then inject a normal PCI hotplug interrupt instead. BUG=b:197247746, b:205072342 TEST=Make sure that GPE marked as direct are ignored Change-Id: Id5b05a99951455f52dcb375289cb10d040e8ff7f Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3492225 Reviewed-by: Daniel Verkamp <dverkamp@chromium.org> Tested-by: kokoro <noreply+kokoro@google.com> Commit-Queue: Tomasz Nowicki <tnowicki@google.com>
crosvm is a virtual machine monitor (VMM) based on Linux’s KVM hypervisor, with a focus on simplicity, security, and speed. crosvm is intended to run Linux guests, originally as a security boundary for running native applications on the Chrome OS platform. Compared to QEMU, crosvm doesn’t emulate architectures or real hardware, instead concentrating on paravirtualized devices, such as the virtio standard.
crosvm is currently used to run Linux/Android guests on Chrome OS devices.
