[PATCH 5/5] [debug] some logging
Gerd Hoffmann
kraxel at redhat.com
Fri Jan 11 09:31:16 UTC 2019
---
hw/vfio/display.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/hw/vfio/display.c b/hw/vfio/display.c
index a3a710b3ee..96b5474243 100644
--- a/hw/vfio/display.c
+++ b/hw/vfio/display.c
@@ -42,6 +42,8 @@ static void vfio_display_edid_link_up(void *opaque)
VFIOPCIDevice *vdev = opaque;
VFIODisplay *dpy = vdev->dpy;
+ fprintf(stderr, "%s:\n", __func__);
+
dpy->edid_regs->link_state = VFIO_DEVICE_GFX_LINK_STATE_UP;
pwrite_field(vdev->vbasedev.fd, dpy->edid_info, dpy->edid_regs, link_state);
return;
@@ -60,6 +62,9 @@ static void vfio_display_edid_update(VFIOPCIDevice *vdev, bool enabled, int pref
.prefy = prefy ?: vdev->display_yres,
};
+ fprintf(stderr, "%s: ui info: %dx%d, %s\n", __func__,
+ prefx, prefy, enabled ? "on" : "off");
+
timer_del(dpy->edid_link_timer);
dpy->edid_regs->link_state = VFIO_DEVICE_GFX_LINK_STATE_DOWN;
pwrite_field(vdev->vbasedev.fd, dpy->edid_info, dpy->edid_regs, link_state);
@@ -74,6 +79,9 @@ static void vfio_display_edid_update(VFIOPCIDevice *vdev, bool enabled, int pref
if (edid.maxy && edid.prefy > edid.maxy) {
edid.prefy = edid.maxy;
}
+ fprintf(stderr, "%s: edid: %dx%d\n", __func__,
+ edid.prefx, edid.prefy);
+
qemu_edid_generate(dpy->edid_blob,
dpy->edid_regs->edid_max_size,
&edid);
@@ -123,6 +131,8 @@ static void vfio_display_edid_init(VFIOPCIDevice *vdev)
VFIO_REGION_SUBTYPE_GFX_EDID,
&dpy->edid_info);
if (ret) {
+ fprintf(stderr, "%s: no edid region (%s)\n",
+ __func__, strerror(errno));
return;
}
@@ -132,6 +142,12 @@ static void vfio_display_edid_init(VFIOPCIDevice *vdev)
pread_field(vdev->vbasedev.fd, dpy->edid_info, dpy->edid_regs, max_xres);
pread_field(vdev->vbasedev.fd, dpy->edid_info, dpy->edid_regs, max_yres);
dpy->edid_blob = g_malloc0(dpy->edid_regs->edid_max_size);
+ fprintf(stderr, "%s: edid region: offset %d, size %d, max-res %dx%d\n",
+ __func__,
+ dpy->edid_regs->edid_offset,
+ dpy->edid_regs->edid_max_size,
+ dpy->edid_regs->max_xres,
+ dpy->edid_regs->max_yres);
/* if xres + yres properties are unset use the maximum resolution */
if (!vdev->display_xres)
--
2.9.3
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