From mboxrd@z Thu Jan 1 00:00:00 1970 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id ED97CC433FE for ; Thu, 17 Nov 2022 04:07:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231838AbiKQEH5 (ORCPT ); Wed, 16 Nov 2022 23:07:57 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40226 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232521AbiKQEHb (ORCPT ); Wed, 16 Nov 2022 23:07:31 -0500 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 6FF23DF82; Wed, 16 Nov 2022 20:04:29 -0800 (PST) Received: from [10.156.157.53] (unknown [167.220.238.149]) by linux.microsoft.com (Postfix) with ESMTPSA id 63C5B20B83C2; Wed, 16 Nov 2022 20:04:23 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 63C5B20B83C2 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1668657869; bh=NITiavHJuaVVgscwVFRz0twmEth6zrlX/bXMmObThsk=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=fRSL89hw3U3kIGJwpmtSVKNsNBoBYrOeQvp0AXx7k1vtv3ysYsK1ULZwRDOJITuNB 0/lmDjxYDy6rA/oUk/+0ttXbisiu3/6ZvojQGloetHv8P1GAuwFGMxv3sIHP6wfzYW yW0woOHn7TdGmMG8wuyzRDczGn57/9j2Iu/8/53Q= Subject: Re: [PATCH v3 0/5] Add support running nested Microsoft Hypervisor To: Wei Liu Cc: jinankjain@microsoft.com, kys@microsoft.com, haiyangz@microsoft.com, decui@microsoft.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, arnd@arndb.de, peterz@infradead.org, jpoimboe@kernel.org, seanjc@google.com, kirill.shutemov@linux.intel.com, ak@linux.intel.com, sathyanarayanan.kuppuswamy@linux.intel.com, linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, anrayabh@linux.microsoft.com, mikelley@microsoft.com References: From: Jinank Jain Message-ID: <24f4cef8-3e87-4303-9fb3-0011339fdceb@linux.microsoft.com> Date: Thu, 17 Nov 2022 09:34:21 +0530 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Thunderbird/68.12.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org On 11/16/2022 5:42 PM, Wei Liu wrote: > On Thu, Nov 03, 2022 at 01:04:02PM +0000, Jinank Jain wrote: >> This patch series plans to add support for running nested Microsoft >> Hypervisor. In case of nested Microsoft Hypervisor there are few >> privileged hypercalls which need to go L0 Hypervisor instead of L1 >> Hypervisor. This patches series basically identifies such hypercalls and >> replace them with nested hypercalls. >> >> Jinank Jain (5): >> x86/hyperv: Add support for detecting nested hypervisor > I see `__weak hv_nested` in this patch. > > I guess this version has fixed ARM64 build? It is fixed in v4 of the patch series. Regards, Jinank > >> Drivers: hv: Setup synic registers in case of nested root partition >> x86/hyperv: Add an interface to do nested hypercalls >> Drivers: hv: Enable vmbus driver for nested root partition >> x86/hyperv: Change interrupt vector for nested root partition >> >> arch/x86/include/asm/hyperv-tlfs.h | 17 +++++++- >> arch/x86/include/asm/idtentry.h | 2 + >> arch/x86/include/asm/irq_vectors.h | 6 +++ >> arch/x86/include/asm/mshyperv.h | 68 ++++++++++++++++++++++++++++-- >> arch/x86/kernel/cpu/mshyperv.c | 22 ++++++++++ >> arch/x86/kernel/idt.c | 9 ++++ >> drivers/hv/hv.c | 18 +++++--- >> drivers/hv/hv_common.c | 7 ++- >> drivers/hv/vmbus_drv.c | 5 ++- >> include/asm-generic/hyperv-tlfs.h | 1 + >> 10 files changed, 141 insertions(+), 14 deletions(-) >> >> -- >> 2.25.1 >>