Hey Gustavo, Hope you are doing good. I am trying to increase the size of shared memory to 18MB. But i am getting below error.
"qemu-system-aarch64: -device ivshmem-flat,chardev=ivshmem_flat,x-bus-address-iomem=0x400FF000,x-bus-address-shmem=0x40100000,shmem-size=18874368: Can't map shmem fd: shmem size different from device size!" i started ivshmem-server with below command sudo ivshmem-server -l 18874368 -F it is working fine with 8MB (shmem-size=8388608) but with 18MB(shmem-size=18874368), it is failing. help please. On Fri, May 17, 2024 at 7:07 PM Gustavo Romero <gustavo.rom...@linaro.org> wrote: > Hi Sanjeev, > > On 5/17/24 3:02 PM, Sanjeev Kumar wrote: > > Hi Gustavo, > > I understood difference between the two patchsets. thanks for the > ivshmem-flat. i will try to get info from QNX side how to access the memory > location in QNX. with the ivshmem-flat enabled, i am able to see shmem in > "info qtree" as below > > (qemu) info qtree > > bus: main-system-bus > > type System > > dev: ivshmem-flat, id "" > > gpio-out "sysbus-irq" 1 > > chardev = "ivshmem_flat" > > shmem-size = 4194304 (0x400000) > > x-irq-qompath = > "/machine/unattached/device[4]/gic/unnamed-gpio-in[0]" > > x-bus-address-iomem = 1074786304 (0x400ff000) > > x-bus-address-shmem = 1074790400 (0x40100000) > > mmio 00000000400ff000/0000000000000010 > > mmio 0000000040100000/0000000000400000 > > > > now need to explore in guest os(QNX) on how to read this memory location. > > It looks like all is set for QNX. Cool. > > I'm on vacation for the next two weeks so I'll be slow replying. Good luck! > > > Cheers, > Gustavo >
