Re: [PATCH] usb: add support for sending MSIs from EHCI PCI devices

On Sat, 9 Mar 2024, Isaac Woods wrote: Signed-off-by: Isaac Woods --- hw/usb/hcd-ehci-pci.c| 27 +++ hw/usb/hcd-ehci-sysbus.c | 7 +++ hw/usb/hcd-ehci.c| 2 +- hw/usb/hcd-ehci.h| 2 ++ 4 files changed, 37 insertions(+), 1 deletion(-) diff --git a/h

[PATCH] usb: add support for sending MSIs from EHCI PCI devices

Signed-off-by: Isaac Woods --- hw/usb/hcd-ehci-pci.c| 27 +++ hw/usb/hcd-ehci-sysbus.c | 7 +++ hw/usb/hcd-ehci.c| 2 +- hw/usb/hcd-ehci.h| 2 ++ 4 files changed, 37 insertions(+), 1 deletion(-) diff --git a/hw/usb/hcd-ehci-pci.c b/hw/usb/hcd-eh

[PATCH] usb: add support for sending MSIs from EHCI PCI devices

This is a small patch that aims to add support for sending message-signalled interrupts from EHCI controllers on PCI busses. This was desirable for guests (in my case a hobbyist OS) that do not have support for legacy PCI interrupt routing but still want to / have to interface with EHCI controllers