From patchwork Fri Jul 26 22:59:05 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Roman Kisel X-Patchwork-Id: 13743243 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A49C1C3DA4A for ; Fri, 26 Jul 2024 23:01:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc: To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=6VdNUotlmWFHm4fWqPlZRqwFWjZIXEM8OUM2hq4wFV8=; b=mt4sJewLlqnWoGcluDkEPCmBaL R73vP1n7cGfM6wkUdSR3pAhuv3IAKP+zZIFnt8qMlZEa8czuHMgNKlbPCQIOxCeYWLumdZ2nxqSWX OD4czZE93yEabQl17nJWSHFvODzST9xQhWWmO3BFUEWObD4c5rLRaiVsvCqfN7FkGucbEwzzl8pnp uvKKfOZMAZO1Wx+5OpywDmmuTawYZatWOI9LW4qgosAOGdbrLQOQ+aB57bSEo0FHLqvocle7AA92g l4zkesyzh4K9GNUSQu/sfSBL2ooNtksenh4m/HvbT0V8h8enC7q5HHjEt6e07UTPoJ0Qwrtw1QfKV emFzc4Ag==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sXTvc-00000005Ht5-1ANu; Fri, 26 Jul 2024 23:00:48 +0000 Received: from linux.microsoft.com ([13.77.154.182]) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sXTuN-00000005HGn-1eXJ for linux-arm-kernel@lists.infradead.org; Fri, 26 Jul 2024 22:59:34 +0000 Received: from romank-3650.corp.microsoft.com (unknown [131.107.159.62]) by linux.microsoft.com (Postfix) with ESMTPSA id 7F9F520B7123; Fri, 26 Jul 2024 15:59:28 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 7F9F520B7123 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1722034768; bh=6VdNUotlmWFHm4fWqPlZRqwFWjZIXEM8OUM2hq4wFV8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=hwl/+ekNAzQ4Kdaq4mMERTDDqlqxl0CigI9TQpm1Icz7P+UdZ2vWwaHcnLaW10xO/ RP1S4wMYsfZxiLGqP2P/SLt7Bor6CQcy85IpJnVgcsGhnFXMLau7H2DoJv2MglLSa2 EiGuLV8sjO9gG8eRpncI47xmIFVSLitwz53M+xAk= From: Roman Kisel 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, 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: apais@microsoft.com, benhill@microsoft.com, ssengar@microsoft.com, sunilmut@microsoft.com, vdso@hexbites.dev Subject: [PATCH v3 2/7] Drivers: hv: Enable VTL mode for arm64 Date: Fri, 26 Jul 2024 15:59:05 -0700 Message-Id: <20240726225910.1912537-3-romank@linux.microsoft.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240726225910.1912537-1-romank@linux.microsoft.com> References: <20240726225910.1912537-1-romank@linux.microsoft.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240726_155931_563988_E3075475 X-CRM114-Status: GOOD ( 14.19 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 Acked-by: Wei Liu --- 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.