From 92fd453c6717acbeafcbbac39084a6f1c9ac6827 Mon Sep 17 00:00:00 2001
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Date: Mon, 29 Jul 2019 17:29:02 +0100
Subject: [PATCH 1/3] Revert "Revert "globals: Allow global properties to be
optional""
This reverts commit 8fa70dbd8bb478d9483c1da3e9976a2d86b3f9a0.
Because we're about to revert it's neighbour and thus uses an optional
again.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190729162903.4489-2-dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
---
include/hw/qdev-core.h | 3 +++
qom/object.c | 3 +++
2 files changed, 6 insertions(+)
diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
index e157fc4acd..136df7774c 100644
--- a/include/hw/qdev-core.h
+++ b/include/hw/qdev-core.h
@@ -252,6 +252,8 @@ struct PropertyInfo {
/**
* GlobalProperty:
* @used: Set to true if property was used when initializing a device.
+ * @optional: If set to true, GlobalProperty will be skipped without errors
+ * if the property doesn't exist.
*
* An error is fatal for non-hotplugged devices, when the global is applied.
*/
@@ -260,6 +262,7 @@ typedef struct GlobalProperty {
const char *property;
const char *value;
bool used;
+ bool optional;
} GlobalProperty;
static inline void
diff --git a/qom/object.c b/qom/object.c
index 3966a3d461..1555547727 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -386,6 +386,9 @@ void object_apply_global_props(Object *obj, const GPtrArray *props, Error **errp
if (object_dynamic_cast(obj, p->driver) == NULL) {
continue;
}
+ if (p->optional && !object_property_find(obj, p->property, NULL)) {
+ continue;
+ }
p->used = true;
object_property_parse(obj, p->value, p->property, &err);
if (err != NULL) {
From dd56040d297a0c530e204e9f459b256e3ddd7e8f Mon Sep 17 00:00:00 2001
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Date: Mon, 29 Jul 2019 17:29:03 +0100
Subject: [PATCH 2/3] Revert "hw: report invalid disable-legacy|modern usage
for virtio-1-only devs"
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This reverts commit f2784eed306449c3d04a71a05ed6463b8289aedf
since that accidentally removes the PCIe capabilities from virtio
devices because virtio_pci_dc_realize is called before the new 'mode'
flag is set.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190729162903.4489-3-dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
---
hw/core/machine.c | 23 +++--------------------
hw/display/virtio-gpu-pci.c | 4 +---
hw/display/virtio-vga.c | 4 +---
hw/virtio/virtio-crypto-pci.c | 4 +---
hw/virtio/virtio-input-pci.c | 4 +---
hw/virtio/virtio-pci.c | 26 ++++++++++----------------
hw/virtio/virtio-pci.h | 31 ++++++-------------------------
7 files changed, 23 insertions(+), 73 deletions(-)
diff --git a/hw/core/machine.c b/hw/core/machine.c
index c58a8e594e..c4a2ab2282 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -115,26 +115,9 @@ const size_t hw_compat_2_7_len = G_N_ELEMENTS(hw_compat_2_7);
GlobalProperty hw_compat_2_6[] = {
{ "virtio-mmio", "format_transport_address", "off" },
- /*
- * don't include devices which are modern-only
- * ie keyboard, mouse, tablet, gpu, vga & crypto
- */
- { "virtio-9p-pci", "disable-modern", "on" },
- { "virtio-9p-pci", "disable-legacy", "off" },
- { "virtio-balloon-pci", "disable-modern", "on" },
- { "virtio-balloon-pci", "disable-legacy", "off" },
- { "virtio-blk-pci", "disable-modern", "on" },
- { "virtio-blk-pci", "disable-legacy", "off" },
- { "virtio-input-host-pci", "disable-modern", "on" },
- { "virtio-input-host-pci", "disable-legacy", "off" },
- { "virtio-net-pci", "disable-modern", "on" },
- { "virtio-net-pci", "disable-legacy", "off" },
- { "virtio-rng-pci", "disable-modern", "on" },
- { "virtio-rng-pci", "disable-legacy", "off" },
- { "virtio-scsi-pci", "disable-modern", "on" },
- { "virtio-scsi-pci", "disable-legacy", "off" },
- { "virtio-serial-pci", "disable-modern", "on" },
- { "virtio-serial-pci", "disable-legacy", "off" },
+ /* Optional because not all virtio-pci devices support legacy mode */
+ { "virtio-pci", "disable-modern", "on", .optional = true },
+ { "virtio-pci", "disable-legacy", "off", .optional = true },
};
const size_t hw_compat_2_6_len = G_N_ELEMENTS(hw_compat_2_6);
diff --git a/hw/display/virtio-gpu-pci.c b/hw/display/virtio-gpu-pci.c
index d6f01b4a98..e4c7eb6193 100644
--- a/hw/display/virtio-gpu-pci.c
+++ b/hw/display/virtio-gpu-pci.c
@@ -33,9 +33,7 @@ static void virtio_gpu_pci_base_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
Error *local_error = NULL;
qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
- if (!virtio_pci_force_virtio_1(vpci_dev, errp)) {
- return;
- }
+ virtio_pci_force_virtio_1(vpci_dev);
object_property_set_bool(OBJECT(vdev), true, "realized", &local_error);
if (local_error) {
diff --git a/hw/display/virtio-vga.c b/hw/display/virtio-vga.c
index 416e7fec87..79a145e284 100644
--- a/hw/display/virtio-vga.c
+++ b/hw/display/virtio-vga.c
@@ -137,9 +137,7 @@ static void virtio_vga_base_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
/* init virtio bits */
qdev_set_parent_bus(DEVICE(g), BUS(&vpci_dev->bus));
- if (!virtio_pci_force_virtio_1(vpci_dev, errp)) {
- return;
- }
+ virtio_pci_force_virtio_1(vpci_dev);
object_property_set_bool(OBJECT(g), true, "realized", &err);
if (err) {
error_propagate(errp, err);
diff --git a/hw/virtio/virtio-crypto-pci.c b/hw/virtio/virtio-crypto-pci.c
index c8a2317a10..91d4446080 100644
--- a/hw/virtio/virtio-crypto-pci.c
+++ b/hw/virtio/virtio-crypto-pci.c
@@ -53,9 +53,7 @@ static void virtio_crypto_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
}
qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
- if (!virtio_pci_force_virtio_1(vpci_dev, errp)) {
- return;
- }
+ virtio_pci_force_virtio_1(vpci_dev);
object_property_set_bool(OBJECT(vdev), true, "realized", errp);
object_property_set_link(OBJECT(vcrypto),
OBJECT(vcrypto->vdev.conf.cryptodev), "cryptodev",
diff --git a/hw/virtio/virtio-input-pci.c b/hw/virtio/virtio-input-pci.c
index 1c40292abc..ad7774e93e 100644
--- a/hw/virtio/virtio-input-pci.c
+++ b/hw/virtio/virtio-input-pci.c
@@ -49,9 +49,7 @@ static void virtio_input_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
DeviceState *vdev = DEVICE(&vinput->vdev);
qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
- if (!virtio_pci_force_virtio_1(vpci_dev, errp)) {
- return;
- }
+ virtio_pci_force_virtio_1(vpci_dev);
object_property_set_bool(OBJECT(vdev), true, "realized", errp);
}
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index ce928f2429..f6d2223e78 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -1723,22 +1723,16 @@ static void virtio_pci_realize(PCIDevice *pci_dev, Error **errp)
/* PCI BAR regions must be powers of 2 */
pow2ceil(proxy->notify.offset + proxy->notify.size));
- if ((proxy->disable_legacy == ON_OFF_AUTO_ON) ||
- ((proxy->disable_legacy == ON_OFF_AUTO_AUTO) && pcie_port)) {
- if (proxy->disable_modern) {
- error_setg(errp, "device cannot work as neither modern nor "
- "legacy mode is enabled");
- error_append_hint(errp, "Set either disable-modern or "
- "disable-legacy to off\n");
- return;
- }
- proxy->mode = VIRTIO_PCI_MODE_MODERN;
- } else {
- if (proxy->disable_modern) {
- proxy->mode = VIRTIO_PCI_MODE_LEGACY;
- } else {
- proxy->mode = VIRTIO_PCI_MODE_TRANSITIONAL;
- }
+ if (proxy->disable_legacy == ON_OFF_AUTO_AUTO) {
+ proxy->disable_legacy = pcie_port ? ON_OFF_AUTO_ON : ON_OFF_AUTO_OFF;
+ }
+
+ if (!virtio_pci_modern(proxy) && !virtio_pci_legacy(proxy)) {
+ error_setg(errp, "device cannot work as neither modern nor legacy mode"
+ " is enabled");
+ error_append_hint(errp, "Set either disable-modern or disable-legacy"
+ " to off\n");
+ return;
}
if (pcie_port && pci_is_express(pci_dev)) {
diff --git a/hw/virtio/virtio-pci.h b/hw/virtio/virtio-pci.h
index 619d9098c1..292275acb1 100644
--- a/hw/virtio/virtio-pci.h
+++ b/hw/virtio/virtio-pci.h
@@ -15,7 +15,6 @@
#ifndef QEMU_VIRTIO_PCI_H
#define QEMU_VIRTIO_PCI_H
-#include "qapi/error.h"
#include "hw/pci/msi.h"
#include "hw/virtio/virtio-bus.h"
@@ -119,12 +118,6 @@ typedef struct VirtIOPCIQueue {
uint32_t used[2];
} VirtIOPCIQueue;
-typedef enum {
- VIRTIO_PCI_MODE_LEGACY,
- VIRTIO_PCI_MODE_TRANSITIONAL,
- VIRTIO_PCI_MODE_MODERN,
-} VirtIOPCIMode;
-
struct VirtIOPCIProxy {
PCIDevice pci_dev;
MemoryRegion bar;
@@ -149,7 +142,6 @@ struct VirtIOPCIProxy {
bool disable_modern;
bool ignore_backend_features;
OnOffAuto disable_legacy;
- VirtIOPCIMode mode;
uint32_t class_code;
uint32_t nvectors;
uint32_t dfselect;
@@ -164,34 +156,23 @@ struct VirtIOPCIProxy {
static inline bool virtio_pci_modern(VirtIOPCIProxy *proxy)
{
- return proxy->mode != VIRTIO_PCI_MODE_LEGACY;
+ return !proxy->disable_modern;
}
static inline bool virtio_pci_legacy(VirtIOPCIProxy *proxy)
{
- return proxy->mode != VIRTIO_PCI_MODE_MODERN;
+ return proxy->disable_legacy == ON_OFF_AUTO_OFF;
}
-static inline bool virtio_pci_force_virtio_1(VirtIOPCIProxy *proxy,
- Error **errp)
+static inline void virtio_pci_force_virtio_1(VirtIOPCIProxy *proxy)
{
- if (proxy->disable_legacy == ON_OFF_AUTO_OFF) {
- error_setg(errp, "Unable to set disable-legacy=off on a virtio-1.0 "
- "only device");
- return false;
- }
- if (proxy->disable_modern == true) {
- error_setg(errp, "Unable to set disable-modern=on on a virtio-1.0 "
- "only device");
- return false;
- }
- proxy->mode = VIRTIO_PCI_MODE_MODERN;
- return true;
+ proxy->disable_modern = false;
+ proxy->disable_legacy = ON_OFF_AUTO_ON;
}
static inline void virtio_pci_disable_modern(VirtIOPCIProxy *proxy)
{
- proxy->mode = VIRTIO_PCI_MODE_LEGACY;
+ proxy->disable_modern = true;
}
/*
From 22235bb609c18547cf6b215bad1f9d2ec56ad371 Mon Sep 17 00:00:00 2001
From: Igor Mammedov <imammedo@redhat.com>
Date: Tue, 23 Jul 2019 12:08:59 -0400
Subject: [PATCH 3/3] pc-dimm: fix crash when invalid slot number is used
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
QEMU will crash with:
Segmentation fault (core dumped)
when negative slot number is used, ex:
qemu-system-x86_64 -m 1G,maxmem=20G,slots=256 \
-object memory-backend-ram,id=mem1,size=1G \
-device pc-dimm,id=dimm1,memdev=mem1,slot=-2
fix it by checking that slot number is within valid range.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20190723160859.27250-1-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Li Qiang <liq3ea@gmail.com>
Signed-off-by: Igor Mammedov <<a href="mailto:imammedo@redhat.com" target="_blank">imammedo@redhat.com</a>><br></blockquote><div><br></div><div>Reviewed-by: Li Qiang <<a href="mailto:liq3ea@gmail.com">liq3ea@gmail.com</a>><br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
Reviewed-by: Pankaj Gupta <pagupta@redhat.com>
---
hw/mem/pc-dimm.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/hw/mem/pc-dimm.c b/hw/mem/pc-dimm.c
index b1239fd0d3..29c785799c 100644
--- a/hw/mem/pc-dimm.c
+++ b/hw/mem/pc-dimm.c
@@ -38,6 +38,13 @@ void pc_dimm_pre_plug(PCDIMMDevice *dimm, MachineState *machine,
slot = object_property_get_int(OBJECT(dimm), PC_DIMM_SLOT_PROP,
&error_abort);
+ if ((slot < 0 || slot >= machine->ram_slots) &&
+ slot != PC_DIMM_UNASSIGNED_SLOT) {
+ error_setg(&local_err, "invalid slot number, valid range is [0-%"
+ PRIu64 "]", machine->ram_slots - 1);
+ goto out;
+ }
+
slot = pc_dimm_get_free_slot(slot == PC_DIMM_UNASSIGNED_SLOT ? NULL : &slot,
machine->ram_slots, &local_err);
if (local_err) {