Blame SOURCES/kvm-RHEL-disable-seqpacket-for-vhost-vsock-device-in-rhe.patch

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From e0e4f01c6f4fb5881960f72ae4e80951b711131e Mon Sep 17 00:00:00 2001
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From: Stefano Garzarella <sgarzare@redhat.com>
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Date: Thu, 24 Mar 2022 16:04:57 +0100
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Subject: [PATCH 1/5] RHEL: disable "seqpacket" for "vhost-vsock-device" in
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 rhel8.6.0
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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: Stefano Garzarella <sgarzare@redhat.com>
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RH-MergeRequest: 136: RHEL: disable "seqpacket" for "vhost-vsock-device" in rhel8.6.0 [rhel-8.7.0]
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RH-Commit: [1/1] d82ea09e123679521503689f7d9af1c03dc71bfc
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RH-Bugzilla: 2068202
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RH-Acked-by: Jason Wang <None>
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RH-Acked-by: Eugenio PĂ©rez <None>
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RH-Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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vhost-vsock device in RHEL 8 kernels doesn't support seqpacket.
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To avoid problems when migrating a VM from RHEL 9 host, we need to
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disable it in rhel8-* machine types.
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Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
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---
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 hw/core/machine.c          | 10 ++++++++++
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 hw/i386/pc_piix.c          |  2 ++
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 hw/i386/pc_q35.c           |  2 ++
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 hw/s390x/s390-virtio-ccw.c |  1 +
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 include/hw/boards.h        |  3 +++
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 5 files changed, 18 insertions(+)
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diff --git a/hw/core/machine.c b/hw/core/machine.c
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index 024b025fc2..76fcabec7a 100644
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--- a/hw/core/machine.c
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+++ b/hw/core/machine.c
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@@ -37,6 +37,16 @@
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 #include "hw/virtio/virtio.h"
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 #include "hw/virtio/virtio-pci.h"
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+GlobalProperty hw_compat_rhel_8_6[] = {
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+    /* hw_compat_rhel_8_6 bz 2068202 */
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+    /*
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+     * vhost-vsock device in RHEL 8 kernels doesn't support seqpacket, so
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+     * we need do disable it downstream on the latest hw_compat_rhel_8.
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+     */
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+    { "vhost-vsock-device", "seqpacket", "off" },
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+};
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+const size_t hw_compat_rhel_8_6_len = G_N_ELEMENTS(hw_compat_rhel_8_6);
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+
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 /*
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  * Mostly the same as hw_compat_6_0 and hw_compat_6_1
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  */
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diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
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index f03a8f0db8..ab6d03e07a 100644
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--- a/hw/i386/pc_piix.c
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+++ b/hw/i386/pc_piix.c
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@@ -998,6 +998,8 @@ static void pc_machine_rhel760_options(MachineClass *m)
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     pcmc->kvmclock_create_always = false;
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     /* From pc_i440fx_5_1_machine_options() */
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     pcmc->pci_root_uid = 1;
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+    compat_props_add(m->compat_props, hw_compat_rhel_8_6,
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+                     hw_compat_rhel_8_6_len);
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     compat_props_add(m->compat_props, hw_compat_rhel_8_5,
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                      hw_compat_rhel_8_5_len);
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     compat_props_add(m->compat_props, pc_rhel_8_5_compat,
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diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
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index 5559261d9e..882fe7a68d 100644
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--- a/hw/i386/pc_q35.c
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+++ b/hw/i386/pc_q35.c
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@@ -658,6 +658,8 @@ static void pc_q35_machine_rhel860_options(MachineClass *m)
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     m->desc = "RHEL-8.6.0 PC (Q35 + ICH9, 2009)";
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     pcmc->smbios_stream_product = "RHEL-AV";
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     pcmc->smbios_stream_version = "8.6.0";
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+    compat_props_add(m->compat_props, hw_compat_rhel_8_6,
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+                     hw_compat_rhel_8_6_len);
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 }
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 DEFINE_PC_MACHINE(q35_rhel860, "pc-q35-rhel8.6.0", pc_q35_init_rhel860,
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diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
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index 9795eb9406..bec270598b 100644
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--- a/hw/s390x/s390-virtio-ccw.c
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+++ b/hw/s390x/s390-virtio-ccw.c
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@@ -1109,6 +1109,7 @@ static void ccw_machine_rhel860_instance_options(MachineState *machine)
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 static void ccw_machine_rhel860_class_options(MachineClass *mc)
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 {
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+    compat_props_add(mc->compat_props, hw_compat_rhel_8_6, hw_compat_rhel_8_6_len);
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 }
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 DEFINE_CCW_MACHINE(rhel860, "rhel8.6.0", true);
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diff --git a/include/hw/boards.h b/include/hw/boards.h
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index 04e8759815..4ddb798144 100644
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--- a/include/hw/boards.h
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+++ b/include/hw/boards.h
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@@ -443,6 +443,9 @@ extern const size_t hw_compat_2_2_len;
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 extern GlobalProperty hw_compat_2_1[];
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 extern const size_t hw_compat_2_1_len;
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+extern GlobalProperty hw_compat_rhel_8_6[];
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+extern const size_t hw_compat_rhel_8_6_len;
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+
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 extern GlobalProperty hw_compat_rhel_8_5[];
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 extern const size_t hw_compat_rhel_8_5_len;
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-- 
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2.27.0
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