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qemu/0108-qxl-add-QXL_IO_MONITORS_CONFIG_ASYNC.patch
Cole Robinson 9290838132 Fix boot hang if console is not connected (bz #894451) 
Fix segfault with zero length virtio-scsi disk (bz #847549)
2013-02-02 15:47:37 -05:00

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From e9062966428416da41ec5f9ace3d2ef58b3265b1 Mon Sep 17 00:00:00 2001
From: Alon Levy <alevy@redhat.com>
Date: Wed, 22 Aug 2012 11:16:25 +0300
Subject: [PATCH] qxl: add QXL_IO_MONITORS_CONFIG_ASYNC
Revision bumped to 4 for new IO support, enabled for spice-server >=
0.11.1. New io enabled if revision is 4. Revision can be set to 4.
[ kraxel: 3 continues to be the default revision. Once we have a new
stable spice-server release and the qemu patches to enable
the new bits merged we'll go flip the switch and make rev4
the default ]
This io calls the corresponding new spice api
spice_qxl_monitors_config_async to let spice-server read a new guest set
monitors config and notify the client.
On migration reissue spice_qxl_monitors_config_async.
RHBZ: 770842
Signed-off-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
fixup
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
(cherry picked from commit 020af1c45fec664d5d4cf3b8e5117f8bc1d691f2)
Conflicts:
hw/qxl.c
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---
configure | 7 ++++
hw/qxl.c | 98 ++++++++++++++++++++++++++++++++++++++++++++++++++++--
hw/qxl.h | 7 ++++
trace-events | 1 +
ui/spice-display.h | 1 +
5 files changed, 111 insertions(+), 3 deletions(-)
diff --git a/configure b/configure
index 8ffddf4..b5cea26 100755
--- a/configure
+++ b/configure
@@ -2670,6 +2670,9 @@ EOF
spice="yes"
libs_softmmu="$libs_softmmu $spice_libs"
QEMU_CFLAGS="$QEMU_CFLAGS $spice_cflags"
+ if $pkg_config --atleast-version=0.12.0 spice-protocol >/dev/null 2>&1; then
+ spice_qxl_io_monitors_config_async="yes"
+ fi
else
if test "$spice" = "yes" ; then
feature_not_found "spice"
@@ -3407,6 +3410,10 @@ if test "$spice" = "yes" ; then
echo "CONFIG_SPICE=y" >> $config_host_mak
fi
+if test "$spice_qxl_io_monitors_config_async" = "yes" ; then
+ echo "CONFIG_QXL_IO_MONITORS_CONFIG_ASYNC=y" >> $config_host_mak
+fi
+
if test "$smartcard" = "yes" ; then
echo "CONFIG_SMARTCARD=y" >> $config_host_mak
fi
diff --git a/hw/qxl.c b/hw/qxl.c
index baf9bb4..27f3779 100644
--- a/hw/qxl.c
+++ b/hw/qxl.c
@@ -27,6 +27,11 @@
#include "qxl.h"
+#ifndef CONFIG_QXL_IO_MONITORS_CONFIG_ASYNC
+/* spice-protocol is too old, add missing definitions */
+#define QXL_IO_MONITORS_CONFIG_ASYNC (QXL_IO_FLUSH_RELEASE + 1)
+#endif
+
/*
* NOTE: SPICE_RING_PROD_ITEM accesses memory on the pci bar and as
* such can be changed by the guest, so to avoid a guest trigerrable
@@ -249,6 +254,39 @@ static void qxl_spice_destroy_surfaces(PCIQXLDevice *qxl, qxl_async_io async)
}
}
+static void qxl_spice_monitors_config_async(PCIQXLDevice *qxl, int replay)
+{
+ trace_qxl_spice_monitors_config(qxl->id);
+/* 0x000b01 == 0.11.1 */
+#if SPICE_SERVER_VERSION >= 0x000b01 && \
+ defined(CONFIG_QXL_IO_MONITORS_CONFIG_ASYNC)
+ if (replay) {
+ /*
+ * don't use QXL_COOKIE_TYPE_IO:
+ * - we are not running yet (post_load), we will assert
+ * in send_events
+ * - this is not a guest io, but a reply, so async_io isn't set.
+ */
+ spice_qxl_monitors_config_async(&qxl->ssd.qxl,
+ qxl->guest_monitors_config,
+ MEMSLOT_GROUP_GUEST,
+ (uintptr_t)qxl_cookie_new(
+ QXL_COOKIE_TYPE_POST_LOAD_MONITORS_CONFIG,
+ 0));
+ } else {
+ qxl->guest_monitors_config = qxl->ram->monitors_config;
+ spice_qxl_monitors_config_async(&qxl->ssd.qxl,
+ qxl->ram->monitors_config,
+ MEMSLOT_GROUP_GUEST,
+ (uintptr_t)qxl_cookie_new(QXL_COOKIE_TYPE_IO,
+ QXL_IO_MONITORS_CONFIG_ASYNC));
+ }
+#else
+ fprintf(stderr, "qxl: too old spice-protocol/spice-server for "
+ "QXL_IO_MONITORS_CONFIG_ASYNC\n");
+#endif
+}
+
void qxl_spice_reset_image_cache(PCIQXLDevice *qxl)
{
trace_qxl_spice_reset_image_cache(qxl->id);
@@ -538,6 +576,7 @@ static const char *io_port_to_string(uint32_t io_port)
= "QXL_IO_DESTROY_ALL_SURFACES_ASYNC",
[QXL_IO_FLUSH_SURFACES_ASYNC] = "QXL_IO_FLUSH_SURFACES_ASYNC",
[QXL_IO_FLUSH_RELEASE] = "QXL_IO_FLUSH_RELEASE",
+ [QXL_IO_MONITORS_CONFIG_ASYNC] = "QXL_IO_MONITORS_CONFIG_ASYNC",
};
return io_port_to_string[io_port];
}
@@ -819,6 +858,7 @@ static void interface_async_complete_io(PCIQXLDevice *qxl, QXLCookie *cookie)
case QXL_IO_DESTROY_PRIMARY_ASYNC:
case QXL_IO_UPDATE_AREA_ASYNC:
case QXL_IO_FLUSH_SURFACES_ASYNC:
+ case QXL_IO_MONITORS_CONFIG_ASYNC:
break;
case QXL_IO_CREATE_PRIMARY_ASYNC:
qxl_create_guest_primary_complete(qxl);
@@ -894,6 +934,8 @@ static void interface_async_complete(QXLInstance *sin, uint64_t cookie_token)
case QXL_COOKIE_TYPE_RENDER_UPDATE_AREA:
qxl_render_update_area_done(qxl, cookie);
break;
+ case QXL_COOKIE_TYPE_POST_LOAD_MONITORS_CONFIG:
+ break;
default:
fprintf(stderr, "qxl: %s: unexpected cookie type %d\n",
__func__, cookie->type);
@@ -1315,6 +1357,13 @@ static void ioport_write(void *opaque, target_phys_addr_t addr,
return;
}
+ if (d->revision <= QXL_REVISION_STABLE_V10 &&
+ io_port >= QXL_IO_FLUSH_SURFACES_ASYNC) {
+ qxl_set_guest_bug(d, "unsupported io %d for revision %d\n",
+ io_port, d->revision);
+ return;
+ }
+
switch (io_port) {
case QXL_IO_RESET:
case QXL_IO_SET_MODE:
@@ -1334,7 +1383,7 @@ static void ioport_write(void *opaque, target_phys_addr_t addr,
io_port, io_port_to_string(io_port));
/* be nice to buggy guest drivers */
if (io_port >= QXL_IO_UPDATE_AREA_ASYNC &&
- io_port <= QXL_IO_DESTROY_ALL_SURFACES_ASYNC) {
+ io_port < QXL_IO_RANGE_SIZE) {
qxl_send_events(d, QXL_INTERRUPT_IO_CMD);
}
return;
@@ -1362,6 +1411,7 @@ static void ioport_write(void *opaque, target_phys_addr_t addr,
io_port = QXL_IO_DESTROY_ALL_SURFACES;
goto async_common;
case QXL_IO_FLUSH_SURFACES_ASYNC:
+ case QXL_IO_MONITORS_CONFIG_ASYNC:
async_common:
async = QXL_ASYNC;
qemu_mutex_lock(&d->async_lock);
@@ -1503,6 +1553,9 @@ async_common:
d->mode = QXL_MODE_UNDEFINED;
qxl_spice_destroy_surfaces(d, async);
break;
+ case QXL_IO_MONITORS_CONFIG_ASYNC:
+ qxl_spice_monitors_config_async(d, 0);
+ break;
default:
qxl_set_guest_bug(d, "%s: unexpected ioport=0x%x\n", __func__, io_port);
}
@@ -1798,6 +1851,17 @@ static int qxl_init_common(PCIQXLDevice *qxl)
io_size = 16;
break;
case 3: /* qxl-3 */
+ pci_device_rev = QXL_REVISION_STABLE_V10;
+ io_size = 32; /* PCI region size must be pow2 */
+ break;
+/* 0x000b01 == 0.11.1 */
+#if SPICE_SERVER_VERSION >= 0x000b01 && \
+ defined(CONFIG_QXL_IO_MONITORS_CONFIG_ASYNC)
+ case 4: /* qxl-4 */
+ pci_device_rev = QXL_REVISION_STABLE_V12;
+ io_size = msb_mask(QXL_IO_RANGE_SIZE * 2 - 1);
+ break;
+#endif
default:
pci_device_rev = QXL_DEFAULT_REVISION;
io_size = msb_mask(QXL_IO_RANGE_SIZE * 2 - 1);
@@ -1996,7 +2060,9 @@ static int qxl_post_load(void *opaque, int version)
}
qxl_spice_loadvm_commands(d, cmds, out);
g_free(cmds);
-
+ if (d->guest_monitors_config) {
+ qxl_spice_monitors_config_async(d, 1);
+ }
break;
case QXL_MODE_COMPAT:
/* note: no need to call qxl_create_memslots, qxl_set_mode
@@ -2009,6 +2075,14 @@ static int qxl_post_load(void *opaque, int version)
#define QXL_SAVE_VERSION 21
+static bool qxl_monitors_config_needed(void *opaque)
+{
+ PCIQXLDevice *qxl = opaque;
+
+ return qxl->guest_monitors_config != 0;
+}
+
+
static VMStateDescription qxl_memslot = {
.name = "qxl-memslot",
.version_id = QXL_SAVE_VERSION,
@@ -2039,6 +2113,16 @@ static VMStateDescription qxl_surface = {
}
};
+static VMStateDescription qxl_vmstate_monitors_config = {
+ .name = "qxl/monitors-config",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT64(guest_monitors_config, PCIQXLDevice),
+ VMSTATE_END_OF_LIST()
+ },
+};
+
static VMStateDescription qxl_vmstate = {
.name = "qxl",
.version_id = QXL_SAVE_VERSION,
@@ -2046,7 +2130,7 @@ static VMStateDescription qxl_vmstate = {
.pre_save = qxl_pre_save,
.pre_load = qxl_pre_load,
.post_load = qxl_post_load,
- .fields = (VMStateField []) {
+ .fields = (VMStateField[]) {
VMSTATE_PCI_DEVICE(pci, PCIQXLDevice),
VMSTATE_STRUCT(vga, PCIQXLDevice, 0, vmstate_vga_common, VGACommonState),
VMSTATE_UINT32(shadow_rom.mode, PCIQXLDevice),
@@ -2065,6 +2149,14 @@ static VMStateDescription qxl_vmstate = {
VMSTATE_UINT64(guest_cursor, PCIQXLDevice),
VMSTATE_END_OF_LIST()
},
+ .subsections = (VMStateSubsection[]) {
+ {
+ .vmsd = &qxl_vmstate_monitors_config,
+ .needed = qxl_monitors_config_needed,
+ }, {
+ /* empty */
+ }
+ }
};
static Property qxl_properties[] = {
diff --git a/hw/qxl.h b/hw/qxl.h
index 172baf6..9cfedb7 100644
--- a/hw/qxl.h
+++ b/hw/qxl.h
@@ -71,6 +71,8 @@ typedef struct PCIQXLDevice {
} guest_surfaces;
QXLPHYSICAL guest_cursor;
+ QXLPHYSICAL guest_monitors_config;
+
QemuMutex track_lock;
/* thread signaling */
@@ -128,7 +130,12 @@ typedef struct PCIQXLDevice {
} \
} while (0)
+#if 0
+/* spice-server 0.12 is still in development */
+#define QXL_DEFAULT_REVISION QXL_REVISION_STABLE_V12
+#else
#define QXL_DEFAULT_REVISION QXL_REVISION_STABLE_V10
+#endif
/* qxl.c */
void *qxl_phys2virt(PCIQXLDevice *qxl, QXLPHYSICAL phys, int group_id);
diff --git a/trace-events b/trace-events
index 04b0723..8fcbc50 100644
--- a/trace-events
+++ b/trace-events
@@ -956,6 +956,7 @@ qxl_spice_destroy_surfaces(int qid, int async) "%d async=%d"
qxl_spice_destroy_surface_wait_complete(int qid, uint32_t id) "%d sid=%d"
qxl_spice_destroy_surface_wait(int qid, uint32_t id, int async) "%d sid=%d async=%d"
qxl_spice_flush_surfaces_async(int qid, uint32_t surface_count, uint32_t num_free_res) "%d s#=%d, res#=%d"
+qxl_spice_monitors_config(int id) "%d"
qxl_spice_loadvm_commands(int qid, void *ext, uint32_t count) "%d ext=%p count=%d"
qxl_spice_oom(int qid) "%d"
qxl_spice_reset_cursor(int qid) "%d"
diff --git a/ui/spice-display.h b/ui/spice-display.h
index 672d65e..bcff114 100644
--- a/ui/spice-display.h
+++ b/ui/spice-display.h
@@ -51,6 +51,7 @@ typedef enum qxl_async_io {
enum {
QXL_COOKIE_TYPE_IO,
QXL_COOKIE_TYPE_RENDER_UPDATE_AREA,
+ QXL_COOKIE_TYPE_POST_LOAD_MONITORS_CONFIG,
};
typedef struct QXLCookie {
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