Misc HW patches for 2026-03-08

[PULL 32/49] hw/char/{diva-gsp, serial-pci-multi}: Fix deinitialization order

Philippe Mathieu-Daudé posted 49 patches 1 month ago

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Maintainers: Gerd Hoffmann <kraxel@redhat.com>, Christian Schoenebeck <qemu_oss@crudebyte.com>, "Michael S. Tsirkin" <mst@redhat.com>, Igor Mammedov <imammedo@redhat.com>, Ani Sinha <anisinha@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, Peter Maydell <peter.maydell@linaro.org>, "Cédric Le Goater" <clg@kaod.org>, Steven Lee <steven_lee@aspeedtech.com>, Troy Lee <leetroy@gmail.com>, Jamin Lin <jamin_lin@aspeedtech.com>, Andrew Jeffery <andrew@codeconstruct.com.au>, Joel Stanley <joel@jms.id.au>, Richard Henderson <richard.henderson@linaro.org>, Helge Deller <deller@gmx.de>, "Marc-André Lureau" <marcandre.lureau@redhat.com>, Eduardo Habkost <eduardo@habkost.net>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Yanan Wang <wangyanan55@huawei.com>, Zhao Liu <zhao1.liu@intel.com>, Jonathan Cameron <jonathan.cameron@huawei.com>, Fan Ni <fan.ni@samsung.com>, Thomas Huth <th.huth+qemu@posteo.eu>, Jason Wang <jasowang@redhat.com>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Alistair Francis <alistair@alistair23.me>, Halil Pasic <pasic@linux.ibm.com>, Christian Borntraeger <borntraeger@linux.ibm.com>, Eric Farman <farman@linux.ibm.com>, Matthew Rosato <mjrosato@linux.ibm.com>, Ilya Leoshkevich <iii@linux.ibm.com>, David Hildenbrand <david@kernel.org>, Farhan Ali <alifm@linux.ibm.com>, Laurent Vivier <laurent@vivier.eu>, Pierrick Bouvier <pierrick.bouvier@linaro.org>, "Daniel P. Berrangé" <berrange@redhat.com>, "Alex Bennée" <alex.bennee@linaro.org>, Marcelo Tosatti <mtosatti@redhat.com>, Fabiano Rosas <farosas@suse.de>, Akihiko Odaki <odaki@rsg.ci.i.u-tokyo.ac.jp>

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[PULL 32/49] hw/char/{diva-gsp, serial-pci-multi}: Fix deinitialization order

Posted by Philippe Mathieu-Daudé 1 month ago

From: Bernhard Beschow <shentey@gmail.com>

The memory region is owned by the device being unrealized, so must be
removed from the mapping before unrealizing.

Fixes: d66bbea4e0d3 ("serial: add 2x + 4x pci variant")
Fixes: 274074708455 ("hw/char: Add emulation of Diva GSP PCI management boards")
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Message-ID: <20260305220911.131508-3-shentey@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/char/diva-gsp.c         | 2 +-
 hw/char/serial-pci-multi.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/char/diva-gsp.c b/hw/char/diva-gsp.c
index 280d0413c6e..f9aa6e326d6 100644
--- a/hw/char/diva-gsp.c
+++ b/hw/char/diva-gsp.c
@@ -62,8 +62,8 @@ static void diva_pci_exit(PCIDevice *dev)
 
     for (i = 0; i < pci->ports; i++) {
         s = pci->state + i;
-        qdev_unrealize(DEVICE(s));
         memory_region_del_subregion(&pci->membar, &s->io);
+        qdev_unrealize(DEVICE(s));
         g_free(pci->name[i]);
     }
     qemu_free_irqs(pci->irqs, pci->ports);
diff --git a/hw/char/serial-pci-multi.c b/hw/char/serial-pci-multi.c
index 17796b93dd7..7782452018d 100644
--- a/hw/char/serial-pci-multi.c
+++ b/hw/char/serial-pci-multi.c
@@ -56,8 +56,8 @@ static void multi_serial_pci_exit(PCIDevice *dev)
 
     for (i = 0; i < pci->ports; i++) {
         s = pci->state + i;
-        qdev_unrealize(DEVICE(s));
         memory_region_del_subregion(&pci->iobar, &s->io);
+        qdev_unrealize(DEVICE(s));
         g_free(pci->name[i]);
     }
 }
-- 
2.53.0