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From e41c578615d2b52db633214891631ca61973f34b Mon Sep 17 00:00:00 2001
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From: Gerd Hoffmann <kraxel@redhat.com>
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Date: Wed, 4 Jul 2018 09:54:07 +0200
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Subject: [PATCH 187/268] virtio-gpu: tweak scanout disable.
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Gerd Hoffmann <kraxel@redhat.com>
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Message-id: <20180704095409.14514-2-kraxel@redhat.com>
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Patchwork-id: 81226
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O-Subject: [RHEL-7.6 qemu-kvm-rhev PATCH 1/3] virtio-gpu: tweak scanout disable.
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Bugzilla: 1589634
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RH-Acked-by: Laurent Vivier <lvivier@redhat.com>
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RH-Acked-by: Marc-André Lureau <marcandre.lureau@redhat.com>
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RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
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- Factor out the code to virtio_gpu_disable_scanout().
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- Allow disable scanout 0, show a message then.
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- Clear scanout->resource_id.
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
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Message-id: 20180702162443.16796-2-kraxel@redhat.com
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(cherry picked from commit da566a18a7799e5a655cd9f87e222b672cc93e7b)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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hw/display/virtio-gpu.c | 47 +++++++++++++++++++++++++++++------------------
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1 file changed, 29 insertions(+), 18 deletions(-)
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diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
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index 2dd3c34..054ec73 100644
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--- a/hw/display/virtio-gpu.c
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+++ b/hw/display/virtio-gpu.c
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@@ -399,6 +399,34 @@ static void virtio_gpu_resource_create_2d(VirtIOGPU *g,
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g->hostmem += res->hostmem;
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}
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+static void virtio_gpu_disable_scanout(VirtIOGPU *g, int scanout_id)
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+{
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+ struct virtio_gpu_scanout *scanout = &g->scanout[scanout_id];
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+ struct virtio_gpu_simple_resource *res;
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+ DisplaySurface *ds = NULL;
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+
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+ if (scanout->resource_id == 0) {
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+ return;
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+ }
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+
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+ res = virtio_gpu_find_resource(g, scanout->resource_id);
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+ if (res) {
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+ res->scanout_bitmask &= ~(1 << scanout_id);
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+ }
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+
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+ if (scanout_id == 0) {
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+ /* primary head */
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+ ds = qemu_create_message_surface(scanout->width ?: 640,
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+ scanout->height ?: 480,
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+ "Guest disabled display.");
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+ }
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+ dpy_gfx_replace_surface(scanout->con, ds);
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+ scanout->resource_id = 0;
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+ scanout->ds = NULL;
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+ scanout->width = 0;
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+ scanout->height = 0;
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+}
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+
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static void virtio_gpu_resource_destroy(VirtIOGPU *g,
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struct virtio_gpu_simple_resource *res)
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{
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@@ -583,24 +611,7 @@ static void virtio_gpu_set_scanout(VirtIOGPU *g,
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g->enable = 1;
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if (ss.resource_id == 0) {
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- scanout = &g->scanout[ss.scanout_id];
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- if (scanout->resource_id) {
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- res = virtio_gpu_find_resource(g, scanout->resource_id);
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- if (res) {
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- res->scanout_bitmask &= ~(1 << ss.scanout_id);
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- }
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- }
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- if (ss.scanout_id == 0) {
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- qemu_log_mask(LOG_GUEST_ERROR,
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- "%s: illegal scanout id specified %d",
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- __func__, ss.scanout_id);
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- cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID;
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- return;
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- }
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- dpy_gfx_replace_surface(g->scanout[ss.scanout_id].con, NULL);
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- scanout->ds = NULL;
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- scanout->width = 0;
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- scanout->height = 0;
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+ virtio_gpu_disable_scanout(g, ss.scanout_id);
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return;
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}
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--
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1.8.3.1
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