a8263c0693
- Include upstream patches designated as stable material and reviewed for applicability to include here block-Separate-blk_is_writable-and-blk_s.patch hw-intc-arm_gic-Fix-interrupt-ID-in-GICD.patch hw-net-lan9118-Fix-RX-Status-FIFO-PEEK-v.patch hw-timer-slavio_timer-Allow-64-bit-acces.patch net-Fix-handling-of-id-in-netdev_add-and.patch target-arm-Don-t-decode-insns-in-the-XSc.patch target-arm-Fix-MTE0_ACTIVE.patch target-arm-Introduce-PREDDESC-field-defi.patch target-arm-Update-PFIRST-PNEXT-for-pred_.patch target-arm-Update-REV-PUNPK-for-pred_des.patch target-arm-Update-ZIP-UZP-TRN-for-pred_d.patch tcg-Use-memset-for-large-vector-byte-rep.patch ui-vnc-Add-missing-lock-for-send_color_m.patch virtio-move-use-disabled-flag-property-t.patch - binutils v2.36 has changed the handling of the assembler's -mx86-used-note, resulting in a build failure. To compensate, we now explicitly specify -mx86-used-note=no in the seabios Makefile (boo#1181775) build-be-explicit-about-mx86-used-note-n.patch OBS-URL: https://build.opensuse.org/request/show/869843 OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=614
64 lines
2.5 KiB
Diff
64 lines
2.5 KiB
Diff
From: Stefano Garzarella <sgarzare@redhat.com>
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Date: Fri, 8 Jan 2021 18:12:52 +0100
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Subject: virtio: move 'use-disabled-flag' property to hw_compat_4_2
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Git-commit: c126b4c57e0164549de606ca35d1512762051083
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Commit 9d7bd0826f introduced a new 'use-disabled-flag' property
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set to true by default.
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To allow the migration, we set this property to false in the hw_compat,
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but in the wrong place (hw_compat_4_1).
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Since commit 9d7bd0826f was released with QEMU 5.0, we move
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'use-disabled-flag' property to hw_compat_4_2, so 4.2 machine types
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will have the pre-patch behavior and the migration can work.
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The issue was discovered with vhost-vsock device and 4.2 machine
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type without running any kernel in the VM:
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$ qemu-4.2 -M pc-q35-4.2,accel=kvm \
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-device vhost-vsock-pci,guest-cid=4 \
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-monitor stdio -incoming tcp:0:3333
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$ qemu-5.2 -M pc-q35-4.2,accel=kvm \
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-device vhost-vsock-pci,guest-cid=3 \
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-monitor stdio
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(qemu) migrate -d tcp:0:3333
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# qemu-4.2 output
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qemu-system-x86_64: Failed to load virtio-vhost_vsock:virtio
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qemu-system-x86_64: error while loading state for instance 0x0 of device '0000:00:03.0/virtio-vhost_vsock'
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qemu-system-x86_64: load of migration failed: No such file or directory
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Reported-by: Jing Zhao <jinzhao@redhat.com>
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Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1907255
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Fixes: 9d7bd0826f ("virtio-pci: disable vring processing when bus-mastering is disabled")
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Cc: mdroth@linux.vnet.ibm.com
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CC: qemu-stable@nongnu.org
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Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
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Message-Id: <20210108171252.209502-1-sgarzare@redhat.com>
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Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
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Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Signed-off-by: Bruce Rogers <brogers@suse.com>
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---
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hw/core/machine.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/hw/core/machine.c b/hw/core/machine.c
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index d0408049b53c795d095ca7ec8c28..9e83400ecbfdd1c8ab20a54ff39c 100644
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--- a/hw/core/machine.c
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+++ b/hw/core/machine.c
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@@ -62,12 +62,12 @@ GlobalProperty hw_compat_4_2[] = {
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{ "qxl", "revision", "4" },
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{ "qxl-vga", "revision", "4" },
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{ "fw_cfg", "acpi-mr-restore", "false" },
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+ { "virtio-device", "use-disabled-flag", "false" },
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};
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const size_t hw_compat_4_2_len = G_N_ELEMENTS(hw_compat_4_2);
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GlobalProperty hw_compat_4_1[] = {
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{ "virtio-pci", "x-pcie-flr-init", "off" },
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- { "virtio-device", "use-disabled-flag", "false" },
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};
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const size_t hw_compat_4_1_len = G_N_ELEMENTS(hw_compat_4_1);
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