On 04/11/2022 07.47, Thomas Huth wrote:
On 16/06/2022 18.57, Michael S. Tsirkin wrote:
From: Jonathan Cameron <jonathan.came...@huawei.com>
Emulation of a simple CXL Switch downstream port.
The Device ID has been allocated for this use.
Signed-off-by: Jonathan Cameron <jonathan.came...@huawei.com>
Message-Id: <20220616145126.8002-3-jonathan.came...@huawei.com>
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
Reviewed-by: Michael S. Tsirkin <m...@redhat.com>
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
---
hw/cxl/cxl-host.c | 43 +++++-
hw/pci-bridge/cxl_downstream.c | 249 +++++++++++++++++++++++++++++++++
hw/pci-bridge/meson.build | 2 +-
3 files changed, 291 insertions(+), 3 deletions(-)
create mode 100644 hw/pci-bridge/cxl_downstream.c
Hi!
There is a memory problem somewhere in this new device. I can make QEMU
crash by running something like this:
$ MALLOC_PERTURB_=59 ./qemu-system-x86_64 -M x-remote \
-display none -monitor stdio
QEMU 7.1.50 monitor - type 'help' for more information
(qemu) device_add cxl-downstream
./qemu/qom/object.c:1188:5: runtime error: member access within misaligned
address 0x3b3b3b3b3b3b3b3b for type 'struct Object', which requires 8 byte
alignment
0x3b3b3b3b3b3b3b3b: note: pointer points here
<memory cannot be printed>
Bus error (core dumped)
Could you have a look if you've got some spare minutes?
Ping! Jonathan, Michael, any news on this bug?
(this breaks one of my local tests, that's why it's annoying for me)
Thomas
