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From: "Philippe Mathieu-Daudé" <philmd@linaro.org>
To: qemu-devel@nongnu.org
Cc: "Andrew Jones" <ajones@ventanamicro.com>,
	"Alex Bennée" <alex.bennee@linaro.org>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	qemu-arm@nongnu.org, "Udo Steinberg" <udo@hypervisor.org>,
	"Shannon Zhao" <shannon.zhaosl@gmail.com>,
	"Gustavo Romero" <gustavo.romero@linaro.org>,
	"Igor Mammedov" <imammedo@redhat.com>,
	"Peter Maydell" <peter.maydell@linaro.org>,
	"Ani Sinha" <anisinha@redhat.com>,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>
Subject: [PATCH-for-10.1 v3 8/9] hw/arm/virt-acpi: Do not advertise disabled GIC ITS
Date: Thu,  3 Apr 2025 22:40:28 +0200	[thread overview]
Message-ID: <20250403204029.47958-9-philmd@linaro.org> (raw)
In-Reply-To: <20250403204029.47958-1-philmd@linaro.org>

GIC ITS can be disabled at runtime using '-M its=off',
which sets VirtMachineState::its = false. Check this
field to avoid advertising the ITS in the MADT table.

Reported-by: Udo Steinberg <udo@hypervisor.org>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2886
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Gustavo Romero <gustavo.romero@linaro.org>
---
 hw/arm/virt-acpi-build.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/arm/virt-acpi-build.c b/hw/arm/virt-acpi-build.c
index e7e27951cb9..38a9e6fe0c5 100644
--- a/hw/arm/virt-acpi-build.c
+++ b/hw/arm/virt-acpi-build.c
@@ -212,7 +212,7 @@ static bool its_enabled(VirtMachineState *vms)
 {
     VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms);
 
-    return !vmc->no_its;
+    return !vmc->no_its && vms->its;
 }
 
 /*
-- 
2.47.1



  parent reply	other threads:[~2025-04-03 20:41 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-03 20:40 [PATCH-for-10.1 v3 0/9] hw/arm: GIC ITS=off ACPI tables fixes Philippe Mathieu-Daudé
2025-04-03 20:40 ` [PATCH-for-10.1 v3 1/9] hw/arm/virt: Remove pointless VirtMachineState::tcg_its field Philippe Mathieu-Daudé
2025-04-07 11:57   ` Eric Auger
2025-04-03 20:40 ` [PATCH-for-10.1 v3 2/9] hw/intc/gicv3_its: Do not check its_class_name() for NULL Philippe Mathieu-Daudé
2025-04-07 11:57   ` Eric Auger
2025-04-03 20:40 ` [PATCH-for-10.1 v3 3/9] hw/arm/virt: Simplify create_its() Philippe Mathieu-Daudé
2025-04-04  2:59   ` Gustavo Romero
2025-04-07 12:05   ` Eric Auger
2025-04-03 20:40 ` [PATCH-for-10.1 v3 4/9] hw/arm/virt-acpi: Factor its_enabled() helper out Philippe Mathieu-Daudé
2025-04-07 12:08   ` Eric Auger
2025-04-03 20:40 ` [PATCH-for-10.1 v3 5/9] qtest/bios-tables-test: Add test for -M virt, its=off Philippe Mathieu-Daudé
2025-04-04  3:00   ` [PATCH-for-10.1 v3 5/9] qtest/bios-tables-test: Add test for -M virt,its=off Gustavo Romero
2025-04-07 12:55     ` Eric Auger
2025-04-03 20:40 ` [PATCH-for-10.1 v3 6/9] qtest/bios-tables-test: Whitelist aarch64/virt 'its_off' variant blobs Philippe Mathieu-Daudé
2025-04-04  3:01   ` Gustavo Romero
2025-04-09 14:05     ` Igor Mammedov
2025-04-09 15:49       ` Gustavo Romero
2025-04-10  6:50         ` Igor Mammedov
2025-04-10 16:22           ` Gustavo Romero
2025-04-17 21:06             ` Gustavo Romero
2025-04-17 21:21               ` Michael S. Tsirkin
2025-05-06 15:36             ` Igor Mammedov
2025-04-03 20:40 ` [PATCH-for-10.1 v3 7/9] hw/arm/virt-acpi: Always build IORT table (even with GIC ITS disabled) Philippe Mathieu-Daudé
2025-04-04  3:02   ` Gustavo Romero
2025-04-07 13:30   ` Eric Auger
2025-04-03 20:40 ` Philippe Mathieu-Daudé [this message]
2025-04-03 20:40 ` [PATCH-for-10.1 v3 9/9] qtest/bios-tables-test: Update aarch64/virt 'its_off' variant blobs Philippe Mathieu-Daudé
2025-04-04  3:04   ` Gustavo Romero
2025-04-15  8:19 ` [PATCH-for-10.1 v3 0/9] hw/arm: GIC ITS=off ACPI tables fixes Philippe Mathieu-Daudé
2025-04-17 21:08   ` Gustavo Romero

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