KVM: 0.898
device: 0.715
ppc: 0.680
peripherals: 0.672
hypervisor: 0.552
vnc: 0.537
architecture: 0.513
performance: 0.464
socket: 0.422
boot: 0.417
arm: 0.394
semantic: 0.392
kernel: 0.386
graphic: 0.373
mistranslation: 0.347
files: 0.323
permissions: 0.296
register: 0.295
risc-v: 0.279
VMM: 0.249
network: 0.235
PID: 0.231
TCG: 0.202
debug: 0.197
virtual: 0.179
i386: 0.132
x86: 0.126
assembly: 0.119
user-level: 0.115

KVM Windows 98 sound card passthrough is not working for DOS programs..

Hello,
im trying to passthrough PCI soundcards into Qemu Windows 98 machine - i tried Yamaha 724/744 and Aunreal Vortex 1, for Windows 98 its working fine, but for Windows 98 dosbox mode its at the best half - working - FM (music) only or nothing with detected by games sound setups.
  All there cards are using SB emulation devices. 

  When i try to boot to pure DOS, without Windows 98, even music is not working with pass through, only sound which i was able to heard its form Yamaha Setup utility test - Native 16bit sound, aby other test, games setup etc.. are able to dettect sound cards at all. 
  Im pretty sure that drivers are setup correctly, because im using same setup on other physical machine, when its working. My suspect is missing or broken Qemu MB DMA channels emulation.. Because its is need to make DOS sound working.

  Im using pass through because, SB16 emulation in Qemu is incomplete and for Windows 98 dos box, problem is same as with physical cards. Same with AC97 emulation and its Win95 drivers, which have SB emulation device fallback..

Qemu 2.11 + 4.2 Linux Mint 19.3. MB Gigabyte Z170.


This is an automated cleanup. This bug report has been moved to QEMU's
new bug tracker on gitlab.com and thus gets marked as 'expired' now.
Please continue with the discussion here:

 https://gitlab.com/qemu-project/qemu/-/issues/73