On 2016/6/14 22:38, Peter Maydell wrote:
> This series implements emulation of the GICv3 interrupt controller.
> It is based to some extent on previous patches from Shlomo and
> Pavel, but the bulk of it has turned out to be new code. (The
> combination of changing the underlying data structures, adding
> support for TrustZone and implementing proper GICv3 behaviour rather
> than borrowing fragments of GICv2 emulation code meant there wasn't
> much left to reuse.) I've tried to reflect this in the various
> authorship credits on the patches, but please let me know if you
> feel I got anything miscredited one way or the other.
>
> Key points about the GICv3 emulated here:
> * "non-legacy" only, ie system registers and affinity routing
> * TrustZone is implemented
> * no virtualization support
> * only the "core" GICv3, so no LPI support (via ITS or otherwise)
> * no attempt to work around the Linux guest kernel bug fixed
> in commit 7c9b973061b0 (so you need that fix for your guest to
> boot with this GICv3)
Hi Peter,
I have another test with a freebsd guest. When I specify gic-version=3
at the QEMU command line, the guest can't start. But with gic-version=2
it's fine. And if I use gic-version=3 with kvm, the guest boots well too.
It hangs with below log:
[Bds]=============Begin Load Options Dumping ...=============
Driver Options:
SysPrep Options:
Boot Options:
Boot0000: UiApp 0x0109
Boot0001: EFI Internal Shell 0x0001
Boot0002: UEFI Misc Device 0x0001
Boot0003: UEFI Misc Device 2 0x0001
Boot0004: UEFI Misc Device 3 0x0001
Boot0005: UEFI PXEv4 (MAC:525400123456) 0x0001
PlatformRecovery Options:
PlatformRecovery0000: Default PlatformRecovery 0x0001
[Bds]=============End Load Options Dumping=============
[Bds]BdsWait ...Zzzzzzzzzzzz...
[Bds]BdsWait(3)..Zzzz...
The QEMU command line is:
qemu-system-aarch64 \
-m 4096M -cpu cortex-a57 -M virt,gic-version=3 -smp 1 \
-bios QEMU_EFI.fd -serial telnet::4445,server -nographic \
-drive
if=none,file=FreeBSD-11.0-ALPHA3-arm64-aarch64-20160528-r301815.qcow2,id=hd0
\
-device virtio-blk-device,drive=hd0 \
-device virtio-net-device,netdev=net0 \
-netdev user,id=net0
The QEMU_EFI.fd is built on edk2 commit ID 8f88f02 and the disk Image
file is downloaded from
http://www2.tw.freebsd.org/FreeBSD/snapshots/VM-IMAGES/11.0-ALPHA3/aarch64/20160528/FreeBSD-11.0-ALPHA3-arm64-aarch64-20160528-r301815.qcow2.xz
Thanks,
--
Shannon
