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fixes for 2.9: vnc, cirrus, tcg display updates.

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Merge remote-tracking branch 'remotes/kraxel/tags/pull-fixes-20170320-1' into staging

fixes for 2.9: vnc, cirrus, tcg display updates.

# gpg: Signature made Mon 20 Mar 2017 08:52:34 GMT
# gpg:                using RSA key 0x4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/pull-fixes-20170320-1:
  vnc: fix a qio-channel leak
  cirrus: fix off-by-one in cirrus_bitblt_rop_bkwd_transp_*_16
  ui/console: ensure graphic updates don't race with TCG vCPUs

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2017-03-20 10:05:45 +00:00
commit bedf13ecab
3 changed files with 22 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

2
hw/display/cirrus_vga_rop.h
View file

@ -219,7 +219,7 @@ glue(glue(cirrus_bitblt_rop_bkwd_transp_, ROP_NAME),_16)(CirrusVGAState *s,
srcpitch += bltwidth;
for (y = 0; y < bltheight; y++) {
for (x = 0; x < bltwidth; x+=2) {
ROP_OP_TR_16(s, dstaddr, cirrus_src16(s, srcaddr), transp);
ROP_OP_TR_16(s, dstaddr - 1, cirrus_src16(s, srcaddr - 1), transp);
dstaddr -= 2;
srcaddr -= 2;
}

21
ui/console.c
View file

@ -1575,13 +1575,32 @@ bool dpy_gfx_check_format(QemuConsole *con,
return true;
}
/*
* Safe DPY refresh for TCG guests. This runs when the TCG vCPUs are
* quiescent so we can avoid races between dirty page tracking for
* direct frame-buffer access by the guest.
*
* This is a temporary stopgap until we've fixed the dirty tracking
* races in display adapters.
*/
static void do_safe_dpy_refresh(CPUState *cpu, run_on_cpu_data opaque)
{
DisplayChangeListener *dcl = opaque.host_ptr;
dcl->ops->dpy_refresh(dcl);
}
static void dpy_refresh(DisplayState *s)
{
DisplayChangeListener *dcl;
QLIST_FOREACH(dcl, &s->listeners, next) {
if (dcl->ops->dpy_refresh) {
dcl->ops->dpy_refresh(dcl);
if (tcg_enabled()) {
async_safe_run_on_cpu(first_cpu, do_safe_dpy_refresh,
RUN_ON_CPU_HOST_PTR(dcl));
} else {
dcl->ops->dpy_refresh(dcl);
}
}
}
}

1
ui/vnc.c
View file

@ -3677,6 +3677,7 @@ static int vnc_display_listen_addr(VncDisplay *vd,
qio_channel_set_name(QIO_CHANNEL(sioc), name);
if (qio_channel_socket_listen_sync(
sioc, rawaddrs[i], listenerr == NULL ? &listenerr : NULL) < 0) {
object_unref(OBJECT(sioc));
continue;
}
listening = true;