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From: Roman Kisel <romank@linux.microsoft.com>
To: arnd@arndb.de, bhelgaas@google.com, bp@alien8.de,
	catalin.marinas@arm.com, dave.hansen@linux.intel.com,
	decui@microsoft.com, haiyangz@microsoft.com, hpa@zytor.com,
	kw@linux.com, kys@microsoft.com, lenb@kernel.org,
	lpieralisi@kernel.org, mingo@redhat.com, mhklinux@outlook.com,
	rafael@kernel.org, robh@kernel.org, tglx@linutronix.de,
	wei.liu@kernel.org, will@kernel.org, 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: ssengar@microsoft.com, sunilmut@microsoft.com, vdso@hexbites.dev
Subject: [PATCH v2 2/6] drivers/hv: Enable VTL mode for arm64
Date: Tue, 14 May 2024 15:43:49 -0700	[thread overview]
Message-ID: <20240514224508.212318-3-romank@linux.microsoft.com> (raw)
In-Reply-To: <20240514224508.212318-1-romank@linux.microsoft.com>

Kconfig dependencies for arm64 guests on Hyper-V require that be ACPI enabled,
and limit VTL mode to x86/x64. To enable VTL mode on arm64 as well, update the
dependencies. Since VTL mode requires DeviceTree instead of ACPI, don’t require
arm64 guests on Hyper-V to have ACPI.

Signed-off-by: Roman Kisel <romank@linux.microsoft.com>
---
 drivers/hv/Kconfig | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/hv/Kconfig b/drivers/hv/Kconfig
index 862c47b191af..a5cd1365e248 100644
--- a/drivers/hv/Kconfig
+++ b/drivers/hv/Kconfig
@@ -5,7 +5,7 @@ menu "Microsoft Hyper-V guest support"
 config HYPERV
 	tristate "Microsoft Hyper-V client drivers"
 	depends on (X86 && X86_LOCAL_APIC && HYPERVISOR_GUEST) \
-		|| (ACPI && ARM64 && !CPU_BIG_ENDIAN)
+		|| (ARM64 && !CPU_BIG_ENDIAN)
 	select PARAVIRT
 	select X86_HV_CALLBACK_VECTOR if X86
 	select OF_EARLY_FLATTREE if OF
@@ -15,7 +15,7 @@ config HYPERV
 
 config HYPERV_VTL_MODE
 	bool "Enable Linux to boot in VTL context"
-	depends on X86_64 && HYPERV
+	depends on HYPERV
 	depends on SMP
 	default n
 	help
@@ -31,7 +31,7 @@ config HYPERV_VTL_MODE
 
 	  Select this option to build a Linux kernel to run at a VTL other than
 	  the normal VTL0, which currently is only VTL2.  This option
-	  initializes the x86 platform for VTL2, and adds the ability to boot
+	  initializes the kernel to run in VTL2, and adds the ability to boot
 	  secondary CPUs directly into 64-bit context as required for VTLs other
 	  than 0.  A kernel built with this option must run at VTL2, and will
 	  not run as a normal guest.
-- 
2.45.0


  parent reply	other threads:[~2024-05-14 22:45 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-05-14 22:43 [PATCH v2 0/6] arm64/hyperv: Support Virtual Trust Level Boot Roman Kisel
2024-05-14 22:43 ` [PATCH v2 1/6] arm64/hyperv: Support DeviceTree Roman Kisel
2024-05-15  7:45   ` Krzysztof Kozlowski
2024-05-15 17:33     ` Roman Kisel
2024-05-20  6:45       ` Krzysztof Kozlowski
2024-05-20 20:36         ` Roman Kisel
2024-05-15 22:02   ` Elliot Berman
2024-05-16 15:27     ` Roman Kisel
2024-05-14 22:43 ` Roman Kisel [this message]
2024-05-15 13:37   ` [PATCH v2 2/6] drivers/hv: Enable VTL mode for arm64 Michael Kelley
2024-05-15 18:04     ` Roman Kisel
2024-05-14 22:43 ` [PATCH v2 3/6] drivers/hv: arch-neutral implementation of get_vtl() Roman Kisel
2024-05-15 13:38   ` Michael Kelley
2024-05-15 18:11     ` Roman Kisel
2024-05-14 22:43 ` [PATCH v2 4/6] arm64/hyperv: Boot in a Virtual Trust Level Roman Kisel
2024-05-15 13:39   ` Michael Kelley
2024-05-15 18:13     ` Roman Kisel
2024-05-14 22:43 ` [PATCH v2 5/6] drivers/hv/vmbus: Get the irq number from DeviceTree Roman Kisel
2024-05-15  7:47   ` Krzysztof Kozlowski
2024-05-15 17:05     ` Roman Kisel
2024-05-15  9:42   ` Saurabh Singh Sengar
2024-05-15 16:31     ` Roman Kisel
2024-05-15 13:44   ` Michael Kelley
2024-05-15 18:21     ` Roman Kisel
2024-05-16  2:40   ` kernel test robot
2024-05-17 17:14   ` Rob Herring
2024-05-20 19:25     ` Roman Kisel
2024-05-14 22:43 ` [PATCH v2 6/6] drivers/pci/hyperv/arm64: vPCI MSI IRQ domain from DT Roman Kisel
2024-05-15  9:48   ` Saurabh Singh Sengar
2024-05-15 16:34     ` Roman Kisel
2024-05-15 18:12       ` Bjorn Helgaas
2024-05-15 18:34         ` Roman Kisel
2024-05-15 13:47   ` Michael Kelley
2024-05-15 18:31     ` Roman Kisel

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