Misc HW patches for 2024-02-15

[PULL 22/56] hw/i386/q35: Realize LPC PCI function before accessing it

Philippe Mathieu-Daudé posted 56 patches 8 months, 2 weeks ago

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Maintainers: Rob Herring <robh@kernel.org>, Peter Maydell <peter.maydell@linaro.org>, Radoslaw Biernacki <rad@semihalf.com>, Leif Lindholm <quic_llindhol@quicinc.com>, Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>, Yoshinori Sato <ysato@users.sourceforge.jp>, Magnus Damm <magnus.damm@gmail.com>, Kevin Wolf <kwolf@redhat.com>, Hanna Reitz <hreitz@redhat.com>, "Clément Chigot" <chigot@adacore.com>, Frederic Konrad <konrad.frederic@yahoo.fr>, "Marc-André Lureau" <marcandre.lureau@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>, "Hervé Poussineau" <hpoussin@reactos.org>, "Michael S. Tsirkin" <mst@redhat.com>, Richard Henderson <richard.henderson@linaro.org>, Eduardo Habkost <eduardo@habkost.net>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, John Snow <jsnow@redhat.com>, "Philippe Mathieu-Daudé" <philmd@linaro.org>, Aurelien Jarno <aurelien@aurel32.net>, BALATON Zoltan <balaton@eik.bme.hu>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Paul Burton <paulburton@kernel.org>, Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, Artyom Tarasenko <atar4qemu@gmail.com>, Beniamino Galvani <b.galvani@gmail.com>, Strahinja Jankovic <strahinja.p.jankovic@gmail.com>, Alistair Francis <alistair@alistair23.me>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Huacai Chen <chenhuacai@kernel.org>

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[PULL 22/56] hw/i386/q35: Realize LPC PCI function before accessing it

Posted by Philippe Mathieu-Daudé 8 months, 2 weeks ago

We should not wire IRQs on unrealized device.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Damien Hedde <dhedde@kalrayinc.com>
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240213130341.1793-5-philmd@linaro.org>
---
 hw/i386/pc_q35.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index 7ca3f465e0..b7c69d55d6 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -248,13 +248,13 @@ static void pc_q35_init(MachineState *machine)
     /* create ISA bus */
     lpc = pci_new_multifunction(PCI_DEVFN(ICH9_LPC_DEV, ICH9_LPC_FUNC),
                                 TYPE_ICH9_LPC_DEVICE);
-    qdev_prop_set_bit(DEVICE(lpc), "smm-enabled",
-                      x86_machine_is_smm_enabled(x86ms));
     lpc_dev = DEVICE(lpc);
+    qdev_prop_set_bit(lpc_dev, "smm-enabled",
+                      x86_machine_is_smm_enabled(x86ms));
+    pci_realize_and_unref(lpc, host_bus, &error_fatal);
     for (i = 0; i < IOAPIC_NUM_PINS; i++) {
         qdev_connect_gpio_out_named(lpc_dev, ICH9_GPIO_GSI, i, x86ms->gsi[i]);
     }
-    pci_realize_and_unref(lpc, host_bus, &error_fatal);
 
     rtc_state = ISA_DEVICE(object_resolve_path_component(OBJECT(lpc), "rtc"));
 
-- 
2.41.0