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| author |   Shuo Liu <shuo.a.liu@intel.com> | 2021-02-07 11:10:38 +0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-02-09 10:58:19 +0100 |
| commit | aa3b483ff1d71c50b33db154048dff9a8f08ac71 (patch) | |
| tree | 898df00c9a24bd0c5485e9ec47fb74f115e7323a /samples | |
| parent | virt: acrn: Introduce ioeventfd (diff) | |
| download | linux-dev-aa3b483ff1d71c50b33db154048dff9a8f08ac71.tar.xz linux-dev-aa3b483ff1d71c50b33db154048dff9a8f08ac71.zip | |
virt: acrn: Introduce irqfd
irqfd is a mechanism to inject a specific interrupt to a User VM using a
decoupled eventfd mechanism.
Vhost is a kernel-level virtio server which uses eventfd for interrupt
injection. To support vhost on ACRN, irqfd is introduced in HSM.
HSM provides ioctls to associate a virtual Message Signaled Interrupt
(MSI) with an eventfd. The corresponding virtual MSI will be injected
into a User VM once the eventfd got signal.
Cc: Zhi Wang <zhi.a.wang@intel.com>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Yu Wang <yu1.wang@intel.com>
Cc: Reinette Chatre <reinette.chatre@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Shuo Liu <shuo.a.liu@intel.com>
Link: https://lore.kernel.org/r/20210207031040.49576-17-shuo.a.liu@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'samples')
0 files changed, 0 insertions, 0 deletions