From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by smtp.subspace.kernel.org (Postfix) with ESMTP id BB6EA1F3FDC; Mon, 14 Apr 2025 22:47:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=13.77.154.182 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744670838; cv=none; b=rsSBBctX7y1ygJMrEfJKRc/+LY+BZajqCfDANn29YJHAEVlebHLgNhWRjGk3pcC4rr5R95i67we3fr43nt7o5xShO316VPDUFte7IYd3D7KRxgB3HRTpTlUluRK3tCH32NAn3TYJtgjyO4Jdr86ObnVQU1hXR6qEjE0MyzI3OvU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744670838; c=relaxed/simple; bh=blBgF6pm9yLEWrad2z6wwWi3KNdwj0wZn7wmKXkBG4w=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=m1opUC7MJKY3ryCef30VUL6T2JZM+Ag3/rJPRMxrF8oi8aseuZ1HofUsjifMS8227EG9QPP4Qi0b+Sd6cpg+26fVwJp7219T/YRIwqjqe18dOiTFtH+loe6y2rnpA+I0jC5fuT/dbP5ejL1kguv+1FmadVIC7NMVVUEgUM+XYAM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com; spf=pass smtp.mailfrom=linux.microsoft.com; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b=OCOZ3GA6; arc=none smtp.client-ip=13.77.154.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b="OCOZ3GA6" Received: from romank-3650.corp.microsoft.com (unknown [131.107.159.188]) by linux.microsoft.com (Postfix) with ESMTPSA id 06388210C42F; Mon, 14 Apr 2025 15:47:16 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 06388210C42F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1744670836; bh=dEqY+MizYE3Tuj7oGWh4pKfuLIDZLrhKXP4HN0AHPSc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OCOZ3GA6nVfz8WTUjRiC9l/nPq9iNgoU4Kaj5eQYMvW8zp+l4EPbz3OFB8Z8Wz8pP 70qoG5Jv/1edPOrd4bHuVmOim6jqSofgyJctkvxRGzq1twAaLCD4HIw/S2DGnV5jNm mtBcJm2aHM2xjTXIl2elIG7zErzoO7YjbfgA3mfQ= From: Roman Kisel 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 v8 03/11] Drivers: hv: Enable VTL mode for arm64 Date: Mon, 14 Apr 2025 15:47:05 -0700 Message-ID: <20250414224713.1866095-4-romank@linux.microsoft.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250414224713.1866095-1-romank@linux.microsoft.com> References: <20250414224713.1866095-1-romank@linux.microsoft.com> Precedence: bulk X-Mailing-List: linux-hyperv@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 unconditionally. Signed-off-by: Roman Kisel --- drivers/hv/Kconfig | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/hv/Kconfig b/drivers/hv/Kconfig index 6c1416167bd2..eefa0b559b73 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 (X86_64 || ARM64) && 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. -- 2.43.0