08.02.2023 05:03, Chuck Zmudzinski wrote:
Commit 998250e97661 ("xen, gfx passthrough: register host bridge specific to passthrough") uses the igd-passthrough-i440FX pci host device with the xenfv machine type and igd-passthru=on, but using it for the pc machine type, xen accelerator, and igd-passtru=on was omitted from that commit.The igd-passthru-i440FX pci host device is also needed for guests configured with the pc machine type, the xen accelerator, and igd-passthru=on. Specifically, tests show that not using the igd-specific pci host device with the Intel igd passed through to the guest results in slower startup performance and reduced resolution of the display during startup. This patch fixes this issue. To simplify the logic that is needed to support both the --enable-xen and the --disable-xen configure options, introduce the boolean symbol pc_xen_igd_gfx_pt_enabled() whose value is set appropriately in the sysemu/xen.h header file as the test to determine whether or not to use the igd-passthrough-i440FX pci host device instead of the normal i440FX pci host device. Fixes: 998250e97661 ("xen, gfx passthrough: register host bridge specific to passthrough") Signed-off-by: Chuck Zmudzinski <brchu...@aol.com>
Has this change been forgotten? Is it not needed anymore? Thanks, /mjt
