From: Roman Kisel <romank@linux.microsoft.com>
To: arnd@arndb.de, bhelgaas@google.com, bp@alien8.de,
catalin.marinas@arm.com, conor+dt@kernel.org,
dan.carpenter@linaro.org, dave.hansen@linux.intel.com,
decui@microsoft.com, haiyangz@microsoft.com, hpa@zytor.com,
joey.gouly@arm.com, krzk+dt@kernel.org, kw@linux.com,
kys@microsoft.com, lenb@kernel.org, lpieralisi@kernel.org,
manivannan.sadhasivam@linaro.org, mark.rutland@arm.com,
maz@kernel.org, mingo@redhat.com, oliver.upton@linux.dev,
rafael@kernel.org, robh@kernel.org, rafael.j.wysocki@intel.com,
ssengar@linux.microsoft.com, sudeep.holla@arm.com,
suzuki.poulose@arm.com, tglx@linutronix.de, wei.liu@kernel.org,
will@kernel.org, yuzenghui@huawei.com,
devicetree@vger.kernel.org, kvmarm@lists.linux.dev,
linux-acpi@vger.kernel.org, linux-arch@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-pci@vger.kernel.org, x86@kernel.org
Cc: apais@microsoft.com, benhill@microsoft.com,
bperkins@microsoft.com, sunilmut@microsoft.com
Subject: [PATCH hyperv-next v7 05/11] arm64: hyperv: Initialize the Virtual Trust Level field
Date: Mon, 7 Apr 2025 13:13:30 -0700 [thread overview]
Message-ID: <20250407201336.66913-6-romank@linux.microsoft.com> (raw)
In-Reply-To: <20250407201336.66913-1-romank@linux.microsoft.com>
Various parts of the hyperv code need to know what VTL
the kernel runs at, most notably VMBus needs that to
establish communication with the host.
Initialize the Virtual Trust Level field to enable
booting in the Virtual Trust Level.
Signed-off-by: Roman Kisel <romank@linux.microsoft.com>
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
---
arch/arm64/hyperv/mshyperv.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/hyperv/mshyperv.c b/arch/arm64/hyperv/mshyperv.c
index 21458b6338aa..43f422a7ef34 100644
--- a/arch/arm64/hyperv/mshyperv.c
+++ b/arch/arm64/hyperv/mshyperv.c
@@ -117,6 +117,7 @@ static int __init hyperv_init(void)
if (ms_hyperv.priv_high & HV_ACCESS_PARTITION_ID)
hv_get_partition_id();
+ ms_hyperv.vtl = get_vtl();
ms_hyperv_late_init();
--
2.43.0
next prev parent reply other threads:[~2025-04-07 20:13 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-07 20:13 [PATCH hyperv-next v7 00/11] arm64: hyperv: Support Virtual Trust Level Boot Roman Kisel
2025-04-07 20:13 ` [PATCH hyperv-next v7 01/11] arm64: kvm, smccc: Introduce and use API for getting hypervisor UUID Roman Kisel
2025-04-08 7:06 ` Marc Zyngier
2025-04-08 16:16 ` Roman Kisel
2025-04-07 20:13 ` [PATCH hyperv-next v7 02/11] arm64: hyperv: Use SMCCC to detect hypervisor presence Roman Kisel
2025-04-07 20:13 ` [PATCH hyperv-next v7 03/11] Drivers: hv: Enable VTL mode for arm64 Roman Kisel
2025-04-07 20:13 ` [PATCH hyperv-next v7 04/11] Drivers: hv: Provide arch-neutral implementation of get_vtl() Roman Kisel
2025-04-07 20:13 ` Roman Kisel [this message]
2025-04-07 20:13 ` [PATCH hyperv-next v7 06/11] arm64, x86: hyperv: Report the VTL the system boots in Roman Kisel
2025-04-07 20:13 ` [PATCH hyperv-next v7 07/11] dt-bindings: microsoft,vmbus: Add interrupt and DMA coherence properties Roman Kisel
2025-04-07 20:13 ` [PATCH hyperv-next v7 08/11] Drivers: hv: vmbus: Get the IRQ number from DeviceTree Roman Kisel
2025-04-07 20:13 ` [PATCH hyperv-next v7 09/11] Drivers: hv: vmbus: Introduce hv_get_vmbus_root_device() Roman Kisel
2025-04-07 20:13 ` [PATCH hyperv-next v7 10/11] ACPI: irq: Introduce acpi_get_gsi_dispatcher() Roman Kisel
2025-04-07 20:13 ` [PATCH hyperv-next v7 11/11] PCI: hv: Get vPCI MSI IRQ domain from DeviceTree Roman Kisel
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