[Qemu-discuss] Questions regarding Qemu and AARCH64

g to learn theconcepts of how a board is brought up in general along with some ARMv8 concepts. Thanks and Regards Sanjeev

add vEthernet to QEMU

Adapter associated to QEMU? Thanks & Regards, Sanjeev.

No 'PCI' bus found for device 'ivshmem-plain'

Hi, I am starting QEMU as below. qemu-system-aarch64 [] -device ivshmem-plain,memdev=hostmem -object memory-backend-file,size=1M,share=on,mem-path=/dev/shm/ivshmem,id=hostmem before this, i am starting ivshmem-server which i build from QEMU source git repo. i am able to see ivshmem device crea

Re: No 'PCI' bus found for device 'ivshmem-plain'

-device virtio-net-device,netdev=mynet0,mac=52:55:00:d1:55:01 -device virtio-rng-device -device ivshmem-plain,memdev=hostmem -object memory-backend-file,size=1M,share=on,mem-path=/dev/shm/ivshmem,id=hostmem -nographic Thanks & Regards, Sanjeev. On Tue, Mar 19, 2024 at 3:58 PM Peter Maydell w

Re: No 'PCI' bus found for device 'ivshmem-plain'

shared with you with the supported board that supports PCI bus ? On Wed, Mar 20, 2024 at 3:21 PM Peter Maydell wrote: > On Wed, 20 Mar 2024 at 06:40, Sanjeev Kumar > wrote: > > > > Hi, > > Sorry for incomplete command. > > here is the complete command line. >

Re: No 'PCI' bus found for device 'ivshmem-plain'

Hi, our kernel is build with aarch64le. it is 64 bit ARM architecture. when i am trying to use virt as machine, then qemu isn't starting. it is being stuck after entering command, On Wed, Mar 20, 2024 at 7:06 PM Peter Maydell wrote: > On Wed, 20 Mar 2024 at 13:06, Sanjeev Kumar

Re: No 'PCI' bus found for device 'ivshmem-plain'

cpu we are using cortex-a57 because it is nearby to our actual hardware exynos v9 On Thu, Mar 21, 2024 at 1:46 PM Sanjeev Kumar wrote: > Hi, > our kernel is build with aarch64le. it is 64 bit ARM architecture. > when i am trying to use virt as machine, then qemu isn't starting.

Re: No 'PCI' bus found for device 'ivshmem-plain'

as we are beginners. can you please guide us on using virt cpu please. On Thu, Mar 21, 2024 at 1:52 PM Sanjeev Kumar wrote: > cpu we are using cortex-a57 because it is nearby to our actual hardware > exynos v9 > > On Thu, Mar 21, 2024 at 1:46 PM Sanjeev Kumar > wrote: > >&

shared memory mechanism other than ivshmem

Hi, is there any other mechanism of shared memory with QEMU other than ivshmem? I tried ivshmem with ubuntu vm with qemu x86_64 and it is working fine. but our use case is with ARM and ivshmem isn't supported by our custom VM. so please let me know if we have any other mechanism other than ivshmem.

Re: shared memory mechanism other than ivshmem

and forgot to mention. why our VM doesn't support ivshmem because it doesn't have PCI supported. Is there any other shared memory mechanism QEMU which doesn't use the PCI interface? On Tue, May 14, 2024 at 11:28 AM Sanjeev Kumar wrote: > Hi, > is there any other mechanism

Re: shared memory mechanism other than ivshmem

us BAR and i was able to get data. similarly can you please help me with ivshmem-flat like where is the location to write/read the data from host and in guest. Thanks & Regards, Sanjeev. On Tue, May 14, 2024 at 9:56 PM Philippe Mathieu-Daudé wrote: > On 14/5/24 12:23, Sanjeev Kumar wrot

Re: shared memory mechanism other than ivshmem

g/ patches. without that prop, -chardev socket,path=/tmp/ivshmem_socket,id=ivshmem_flat -device ivshmem-flat,chardev=ivshmem_flat,x-irq-qompath='/machine/unattached/device[4]/gic/unnamed-gpio-in[0]',x-bus-qompath='/sysbus' isn't working. On Thu, May 16, 2024 at 2:52 PM S

Re: shared memory mechanism other than ivshmem

use them, it is throwing error of property is missing x-bus-qompath Please check and let me know which is correct patchset to use. Thanks & Regards On Thu, 16 May 2024 at 3:59 PM, Gustavo Romero wrote: > Hi Sanjeev, > > On 5/16/24 11:22 AM, Sanjeev Kumar wrote: > > Hi Philipp

Re: shared memory mechanism other than ivshmem

) x-bus-address-shmem = 1074790400 (0x4010) mmio 400ff000/0010 mmio 4010/0040 now need to explore in guest os(QNX) on how to read this memory location. On Thu, May 16, 2024 at 11:35 PM Sanjeev Kumar wrote: > Hi Gustavo, > Thanks

Re: shared memory mechanism other than ivshmem

o 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

add GPU support to qemu-aarch64

se graphics framerate. Thanks & Regards, Sanjeev.

Re: add GPU support to qemu-aarch64

l 2024 at 12:33, Sanjeev Kumar wrote: >> >> Hi, >> I am trying to passthrough GPU to qemu-system-aarch64le. why i need to do >> this is, the graphics running in OS hosted on qemu-system-aarch64le is very >> less framerate. As there is no PCI support, when i add &quo