| Message ID | 20250527090758.540188-2-mikko.rapeli@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | [v5,1/4] u-boot: disable CONFIG_BLOBLIST on genericarm64 and qemuarm64 | expand |
On Tue, 2025-05-27 at 12:07 +0300, Mikko Rapeli via lists.openembedded.org wrote: > It enables qemu USB support which causes a reset > loop currently with u-boot. > > Signed-off-by: Mikko Rapeli <mikko.rapeli@linaro.org> > --- > meta/conf/machine/qemuarm64.conf | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/meta/conf/machine/qemuarm64.conf b/meta/conf/machine/qemuarm64.conf > index d310445a34..f086729641 100644 > --- a/meta/conf/machine/qemuarm64.conf > +++ b/meta/conf/machine/qemuarm64.conf > @@ -20,7 +20,7 @@ QB_SMP ?= "-smp 4" > QB_CPU_KVM = "-cpu host -machine gic-version=3" > # For graphics to work we need to define the VGA device as well as the necessary USB devices > QB_GRAPHICS = "-device virtio-gpu-pci" > -QB_OPT_APPEND = "-device qemu-xhci -device usb-tablet -device usb-kbd" > +QB_OPT_APPEND ?= "-device qemu-xhci -device usb-tablet -device usb-kbd" > # Virtio Networking support > QB_TAP_OPT = "-netdev tap,id=net0,ifname=@TAP@,script=no,downscript=no" > QB_NETWORK_DEVICE = "-device virtio-net-pci,netdev=net0,mac=@MAC@" I am very worried about merging patches specifically to disable usb (here and in the selftest) since that is something we expect to work to allow the graphics images to work properly. Is there an upstream discussion about why usb causes the hang and/or any estimate on when it might get fixed? I'm partly tempted to revert the uboot version instead of this. Cheers, Richard
Hi, On Tue, May 27, 2025 at 12:53:20PM +0100, Richard Purdie wrote: > On Tue, 2025-05-27 at 12:07 +0300, Mikko Rapeli via lists.openembedded.org wrote: > > It enables qemu USB support which causes a reset > > loop currently with u-boot. > > > > Signed-off-by: Mikko Rapeli <mikko.rapeli@linaro.org> > > --- > > �meta/conf/machine/qemuarm64.conf | 2 +- > > �1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/meta/conf/machine/qemuarm64.conf b/meta/conf/machine/qemuarm64.conf > > index d310445a34..f086729641 100644 > > --- a/meta/conf/machine/qemuarm64.conf > > +++ b/meta/conf/machine/qemuarm64.conf > > @@ -20,7 +20,7 @@ QB_SMP ?= "-smp 4" > > �QB_CPU_KVM = "-cpu host -machine gic-version=3" > > �# For graphics to work we need to define the VGA device as well as the necessary USB devices > > �QB_GRAPHICS = "-device virtio-gpu-pci" > > -QB_OPT_APPEND = "-device qemu-xhci -device usb-tablet -device usb-kbd" > > +QB_OPT_APPEND ?= "-device qemu-xhci -device usb-tablet -device usb-kbd" > > �# Virtio Networking support > > �QB_TAP_OPT = "-netdev tap,id=net0,ifname=@TAP@,script=no,downscript=no" > > �QB_NETWORK_DEVICE = "-device virtio-net-pci,netdev=net0,mac=@MAC@" > > I am very worried about merging patches specifically to disable usb > (here and in the selftest) since that is something we expect to work to > allow the graphics images to work properly. > > Is there an upstream discussion about why usb causes the hang and/or > any estimate on when it might get fixed? I'm partly tempted to revert > the uboot version instead of this. Please allow downstream configurations to override this. They may not care about USB emulation with qemu/runqemu. Several layers try to build upon qemuarm64 oe-core machine but may need to tweak things to get to a working test setup. With Linux kernel AFAIK qemu USB works well, and qemu itself. u-boot is a different beast but we have developers working on improving the situation and I've notified them of this easy to test scenario. u-boot side needs to sync the USB stack with Linux kernel side changes and this is not a small task. Sadly no upstream discussion link currently. Not a perfect answer but better than nothing I hope. Cheers, -Mikko
diff --git a/meta/conf/machine/qemuarm64.conf b/meta/conf/machine/qemuarm64.conf index d310445a34..f086729641 100644 --- a/meta/conf/machine/qemuarm64.conf +++ b/meta/conf/machine/qemuarm64.conf @@ -20,7 +20,7 @@ QB_SMP ?= "-smp 4" QB_CPU_KVM = "-cpu host -machine gic-version=3" # For graphics to work we need to define the VGA device as well as the necessary USB devices QB_GRAPHICS = "-device virtio-gpu-pci" -QB_OPT_APPEND = "-device qemu-xhci -device usb-tablet -device usb-kbd" +QB_OPT_APPEND ?= "-device qemu-xhci -device usb-tablet -device usb-kbd" # Virtio Networking support QB_TAP_OPT = "-netdev tap,id=net0,ifname=@TAP@,script=no,downscript=no" QB_NETWORK_DEVICE = "-device virtio-net-pci,netdev=net0,mac=@MAC@"
It enables qemu USB support which causes a reset loop currently with u-boot. Signed-off-by: Mikko Rapeli <mikko.rapeli@linaro.org> --- meta/conf/machine/qemuarm64.conf | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)