Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging

pc,virtio: regression, test fixes

fixes regressions:
    virtio error message triggered by seabios
    failure in vhost due to VIRTIO_F_RING_RESET
    broken keyboard under seabios

some biosbits test fixes

there's still a known regression with migration and vsock,
not fixed yet.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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# gpg: Signature made Tue 22 Nov 2022 05:22:06 EST
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
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#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu:
  virtio: disable error for out of spec queue-enable
  acpi/tests/avocado/bits: keep the work directory when BITS_DEBUG is set in env
  tests/avocado: configure acpi-bits to use avocado timeout
  MAINTAINERS: add mst to list of biosbits maintainers
  tests: acpi: x86: update expected DSDT after moving PRQx fields in _SB scope
  acpi: x86: move RPQx field back to _SB scope
  tests: acpi: whitelist DSDT before moving PRQx to _SB scope
  vhost: mask VIRTIO_F_RING_RESET for vhost and vhost-user devices

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

12 files changed, 32 insertions, 22 deletions

diff --git a/hw/block/vhost-user-blk.c b/hw/block/vhost-user-blk.c
index 16ad400889..0d5190accf 100644
--- a/hw/block/vhost-user-blk.c
+++ b/hw/block/vhost-user-blk.c
@@ -52,6 +52,7 @@ static const int user_feature_bits[] = {
     VIRTIO_F_NOTIFY_ON_EMPTY,
     VIRTIO_F_RING_PACKED,
     VIRTIO_F_IOMMU_PLATFORM,
+    VIRTIO_F_RING_RESET,
     VHOST_INVALID_FEATURE_BIT
 };
 
diff --git a/hw/isa/lpc_ich9.c b/hw/isa/lpc_ich9.c
index 0b0a83e080..6c44cc9767 100644
--- a/hw/isa/lpc_ich9.c
+++ b/hw/isa/lpc_ich9.c
@@ -813,12 +813,13 @@ static void build_ich9_isa_aml(AcpiDevAmlIf *adev, Aml *scope)
     BusChild *kid;
     ICH9LPCState *s = ICH9_LPC_DEVICE(adev);
     BusState *bus = BUS(s->isa_bus);
+    Aml *sb_scope = aml_scope("\\_SB");
 
     /* ICH9 PCI to ISA irq remapping */
     aml_append(scope, aml_operation_region("PIRQ", AML_PCI_CONFIG,
                                            aml_int(0x60), 0x0C));
     /* Fields declarion has to happen *after* operation region */
-    field = aml_field("PIRQ", AML_BYTE_ACC, AML_NOLOCK, AML_PRESERVE);
+    field = aml_field("PCI0.SF8.PIRQ", AML_BYTE_ACC, AML_NOLOCK, AML_PRESERVE);
     aml_append(field, aml_named_field("PRQA", 8));
     aml_append(field, aml_named_field("PRQB", 8));
     aml_append(field, aml_named_field("PRQC", 8));
@@ -828,17 +829,8 @@ static void build_ich9_isa_aml(AcpiDevAmlIf *adev, Aml *scope)
     aml_append(field, aml_named_field("PRQF", 8));
     aml_append(field, aml_named_field("PRQG", 8));
     aml_append(field, aml_named_field("PRQH", 8));
-    aml_append(scope, field);
-
-    /* hack: put fields into _SB scope for LNKx to find them */
-    aml_append(scope, aml_alias("PRQA", "\\_SB.PRQA"));
-    aml_append(scope, aml_alias("PRQB", "\\_SB.PRQB"));
-    aml_append(scope, aml_alias("PRQC", "\\_SB.PRQC"));
-    aml_append(scope, aml_alias("PRQD", "\\_SB.PRQD"));
-    aml_append(scope, aml_alias("PRQE", "\\_SB.PRQE"));
-    aml_append(scope, aml_alias("PRQF", "\\_SB.PRQF"));
-    aml_append(scope, aml_alias("PRQG", "\\_SB.PRQG"));
-    aml_append(scope, aml_alias("PRQH", "\\_SB.PRQH"));
+    aml_append(sb_scope, field);
+    aml_append(scope, sb_scope);
 
     QTAILQ_FOREACH(kid, &bus->children, sibling) {
             call_dev_aml_func(DEVICE(kid->child), scope);
diff --git a/hw/isa/piix3.c b/hw/isa/piix3.c
index f9b4af5c05..eabad7ba58 100644
--- a/hw/isa/piix3.c
+++ b/hw/isa/piix3.c
@@ -318,24 +318,20 @@ static void build_pci_isa_aml(AcpiDevAmlIf *adev, Aml *scope)
 {
     Aml *field;
     BusChild *kid;
+    Aml *sb_scope = aml_scope("\\_SB");
     BusState *bus = qdev_get_child_bus(DEVICE(adev), "isa.0");
 
     /* PIIX PCI to ISA irq remapping */
     aml_append(scope, aml_operation_region("P40C", AML_PCI_CONFIG,
                                            aml_int(0x60), 0x04));
     /* Fields declarion has to happen *after* operation region */
-    field = aml_field("P40C", AML_BYTE_ACC, AML_NOLOCK, AML_PRESERVE);
+    field = aml_field("PCI0.S08.P40C", AML_BYTE_ACC, AML_NOLOCK, AML_PRESERVE);
     aml_append(field, aml_named_field("PRQ0", 8));
     aml_append(field, aml_named_field("PRQ1", 8));
     aml_append(field, aml_named_field("PRQ2", 8));
     aml_append(field, aml_named_field("PRQ3", 8));
-    aml_append(scope, field);
-
-    /* hack: put fields into _SB scope for LNKx to find them */
-    aml_append(scope, aml_alias("PRQ0", "\\_SB.PRQ0"));
-    aml_append(scope, aml_alias("PRQ1", "\\_SB.PRQ1"));
-    aml_append(scope, aml_alias("PRQ2", "\\_SB.PRQ2"));
-    aml_append(scope, aml_alias("PRQ3", "\\_SB.PRQ3"));
+    aml_append(sb_scope, field);
+    aml_append(scope, sb_scope);
 
     QTAILQ_FOREACH(kid, &bus->children, sibling) {
         call_dev_aml_func(DEVICE(kid->child), scope);
diff --git a/hw/net/vhost_net.c b/hw/net/vhost_net.c
index feda448878..26e4930676 100644
--- a/hw/net/vhost_net.c
+++ b/hw/net/vhost_net.c
@@ -75,6 +75,7 @@ static const int user_feature_bits[] = {
     VIRTIO_NET_F_MTU,
     VIRTIO_F_IOMMU_PLATFORM,
     VIRTIO_F_RING_PACKED,
+    VIRTIO_F_RING_RESET,
     VIRTIO_NET_F_RSS,
     VIRTIO_NET_F_HASH_REPORT,
 
diff --git a/hw/scsi/vhost-scsi.c b/hw/scsi/vhost-scsi.c
index bdf337a7a2..6a0fd0dfb1 100644
--- a/hw/scsi/vhost-scsi.c
+++ b/hw/scsi/vhost-scsi.c
@@ -38,6 +38,7 @@ static const int kernel_feature_bits[] = {
     VIRTIO_RING_F_INDIRECT_DESC,
     VIRTIO_RING_F_EVENT_IDX,
     VIRTIO_SCSI_F_HOTPLUG,
+    VIRTIO_F_RING_RESET,
     VHOST_INVALID_FEATURE_BIT
 };
 
diff --git a/hw/scsi/vhost-user-scsi.c b/hw/scsi/vhost-user-scsi.c
index bc37317d55..b7a71a802c 100644
--- a/hw/scsi/vhost-user-scsi.c
+++ b/hw/scsi/vhost-user-scsi.c
@@ -36,6 +36,7 @@ static const int user_feature_bits[] = {
     VIRTIO_RING_F_INDIRECT_DESC,
     VIRTIO_RING_F_EVENT_IDX,
     VIRTIO_SCSI_F_HOTPLUG,
+    VIRTIO_F_RING_RESET,
     VHOST_INVALID_FEATURE_BIT
 };
 
diff --git a/hw/virtio/vhost-user-fs.c b/hw/virtio/vhost-user-fs.c
index 1c40f42045..dc4014cdef 100644
--- a/hw/virtio/vhost-user-fs.c
+++ b/hw/virtio/vhost-user-fs.c
@@ -32,6 +32,7 @@ static const int user_feature_bits[] = {
     VIRTIO_F_NOTIFY_ON_EMPTY,
     VIRTIO_F_RING_PACKED,
     VIRTIO_F_IOMMU_PLATFORM,
+    VIRTIO_F_RING_RESET,
 
     VHOST_INVALID_FEATURE_BIT
 };
diff --git a/hw/virtio/vhost-user-gpio.c b/hw/virtio/vhost-user-gpio.c
index 677d1c7730..5851cb3bc9 100644
--- a/hw/virtio/vhost-user-gpio.c
+++ b/hw/virtio/vhost-user-gpio.c
@@ -24,6 +24,7 @@ static const int feature_bits[] = {
     VIRTIO_RING_F_INDIRECT_DESC,
     VIRTIO_RING_F_EVENT_IDX,
     VIRTIO_GPIO_F_IRQ,
+    VIRTIO_F_RING_RESET,
     VHOST_INVALID_FEATURE_BIT
 };
 
diff --git a/hw/virtio/vhost-user-i2c.c b/hw/virtio/vhost-user-i2c.c
index 864eba695e..1c9f3d20dc 100644
--- a/hw/virtio/vhost-user-i2c.c
+++ b/hw/virtio/vhost-user-i2c.c
@@ -16,6 +16,7 @@
 
 static const int feature_bits[] = {
     VIRTIO_I2C_F_ZERO_LENGTH_REQUEST,
+    VIRTIO_F_RING_RESET,
     VHOST_INVALID_FEATURE_BIT
 };
 
diff --git a/hw/virtio/vhost-user-rng.c b/hw/virtio/vhost-user-rng.c
index 8b47287875..f9084cde58 100644
--- a/hw/virtio/vhost-user-rng.c
+++ b/hw/virtio/vhost-user-rng.c
@@ -16,6 +16,11 @@
 #include "qemu/error-report.h"
 #include "standard-headers/linux/virtio_ids.h"
 
+static const int feature_bits[] = {
+    VIRTIO_F_RING_RESET,
+    VHOST_INVALID_FEATURE_BIT
+};
+
 static void vu_rng_start(VirtIODevice *vdev)
 {
     VHostUserRNG *rng = VHOST_USER_RNG(vdev);
@@ -106,8 +111,10 @@ static void vu_rng_set_status(VirtIODevice *vdev, uint8_t status)
 static uint64_t vu_rng_get_features(VirtIODevice *vdev,
                                     uint64_t requested_features, Error **errp)
 {
-    /* No feature bits used yet */
-    return requested_features;
+    VHostUserRNG *rng = VHOST_USER_RNG(vdev);
+
+    return vhost_get_features(&rng->vhost_dev, feature_bits,
+                              requested_features);
 }
 
 static void vu_rng_handle_output(VirtIODevice *vdev, VirtQueue *vq)
diff --git a/hw/virtio/vhost-vsock-common.c b/hw/virtio/vhost-vsock-common.c
index 29b9ab4f72..a67a275de2 100644
--- a/hw/virtio/vhost-vsock-common.c
+++ b/hw/virtio/vhost-vsock-common.c
@@ -21,6 +21,7 @@
 
 const int feature_bits[] = {
     VIRTIO_VSOCK_F_SEQPACKET,
+    VIRTIO_F_RING_RESET,
     VHOST_INVALID_FEATURE_BIT
 };
 
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 9683b2e158..eb6347ab5d 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -2499,10 +2499,17 @@ void virtio_queue_enable(VirtIODevice *vdev, uint32_t queue_index)
 {
     VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
 
+    /*
+     * TODO: Seabios is currently out of spec and triggering this error.
+     * So this needs to be fixed in Seabios, then this can
+     * be re-enabled for new machine types only, and also after
+     * being converted to LOG_GUEST_ERROR.
+     *
     if (!virtio_vdev_has_feature(vdev, VIRTIO_F_VERSION_1)) {
         error_report("queue_enable is only suppported in devices of virtio "
                      "1.0 or later.");
     }
+    */
 
     if (k->queue_enable) {
         k->queue_enable(vdev, queue_index);