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Thu, 28 Oct 2021 07:00:13 +0000 (UTC) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 0C0AA13EC9; Thu, 28 Oct 2021 07:00:13 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id 6mfJAX1KemHjDwAAMHmgww (envelope-from ); Thu, 28 Oct 2021 07:00:13 +0000 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: a59fe0c8-4ab9-4b3c-9d3b-f8eaf4778075 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1635404413; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=/hR5TGXRQVQkw6zIe3acsy/m0ARZTYmLwVeDdkmr0o8=; b=lZtQH9UdJczVGiwq03JhFSRRql36X1yvCa5IvgG6miCjSi8bU5ryad7X4Z4fSeZUNPoIWw RrmpLUCAWZ+6rok5+bY1b3ZBh6wNVPpC8kXsbM7YaitryweAu1v2w2t4Kj1ICE6oEe4SYd CaML0Yhd63mU4lwbKznP8PZiFoQUy5c= To: Stefano Stabellini Cc: Andrew Cooper , xen-devel@lists.xenproject.org, iwj@xenproject.org, cardoe@cardoe.com, wl@xen.org, anthony.perard@citrix.com, Stefano Stabellini References: <20211021230839.10794-2-sstabellini@kernel.org> <19aa9196-eb5f-22a1-206c-c9c87ee79fa9@citrix.com> <8c0a2a97-04ab-4836-fc35-026dd7c122a4@suse.com> From: Juergen Gross Subject: Re: [PATCH 2/3] automation: Linux 5.10.74 test-artifact Message-ID: <4f82901a-2e74-f4ee-311e-b8187d856745@suse.com> Date: Thu, 28 Oct 2021 09:00:12 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="8tTS3EAeEY8aqWI31agR6YRyIzlHM6igP" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --8tTS3EAeEY8aqWI31agR6YRyIzlHM6igP Content-Type: multipart/mixed; boundary="4xVbZeMI34GdqL0pKQ94tjWax7zfzoINd"; protected-headers="v1" From: Juergen Gross To: Stefano Stabellini Cc: Andrew Cooper , xen-devel@lists.xenproject.org, iwj@xenproject.org, cardoe@cardoe.com, wl@xen.org, anthony.perard@citrix.com, Stefano Stabellini Message-ID: <4f82901a-2e74-f4ee-311e-b8187d856745@suse.com> Subject: Re: [PATCH 2/3] automation: Linux 5.10.74 test-artifact References: <20211021230839.10794-2-sstabellini@kernel.org> <19aa9196-eb5f-22a1-206c-c9c87ee79fa9@citrix.com> <8c0a2a97-04ab-4836-fc35-026dd7c122a4@suse.com> In-Reply-To: --4xVbZeMI34GdqL0pKQ94tjWax7zfzoINd Content-Type: multipart/mixed; boundary="------------FB101BD822545065E5676DF2" Content-Language: en-US This is a multi-part message in MIME format. --------------FB101BD822545065E5676DF2 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable On 28.10.21 01:24, Stefano Stabellini wrote: > On Wed, 27 Oct 2021, Stefano Stabellini wrote: >> On Wed, 27 Oct 2021, Juergen Gross wrote: >>> On 26.10.21 02:54, Stefano Stabellini wrote: >>>> On Mon, 25 Oct 2021, Juergen Gross wrote: >>>>> On 22.10.21 21:41, Stefano Stabellini wrote: >>>>>> +Juergen >>>>>> >>>>>> On Fri, 22 Oct 2021, Andrew Cooper wrote: >>>>>>> On 22/10/2021 00:08, Stefano Stabellini wrote: >>>>>>>> +# build depends >>>>>>>> +RUN apt-get update && \ >>>>>>>> + apt-get --quiet --yes install \ >>>>>>>> + build-essential \ >>>>>>>> + libssl-dev \ >>>>>>>> + bc \ >>>>>>>> + curl \ >>>>>>>> + flex \ >>>>>>>> + bison \ >>>>>>>> + libelf-dev \ >>>>>>>> + && \ >>>>>>>> + \ >>>>>>>> + # Build the kernel >>>>>>>> + curl -fsSLO >>>>>>>> https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-"$LINUX_VERSI= ON".tar.xz >>>>>>>> && \ >>>>>>>> + tar xvJf linux-"$LINUX_VERSION".tar.xz && \ >>>>>>>> + cd linux-"$LINUX_VERSION" && \ >>>>>>>> + make defconfig && \ >>>>>>>> + make xen.config && \ >>>>>>>> + cp .config .config.orig && \ >>>>>>>> + cat .config.orig | grep XEN | grep =3Dm |sed 's/=3Dm/=3Dy/g= ' >> >>>>>>>> .config >>>>>>>> && \ >>>>>>>> + make -j$(nproc) bzImage && \ >>>>>>> >>>>>>> defconfig is huuuuge.=C2=A0 Can we use tinyconfig instead? >>>>>>> >>>>>>> Also, you want to turn off CONFIG_MODULES seeing as you only copy= >>>>>>> bzImage to the test. >>>>>>> >>>>>>> This also fixes the fact that `grep XEN` also matches >>>>>>> CONFIG_NETXEN_NIC >>>>>>> which has nothing to do with Xen. >>>>>> >>>>>> Tinyconfig would be a good idea but it crashes on QEMU with the ap= pended >>>>>> boot log. I did: >>>>>> >>>>>> # make tinyconfig >>>>>> # make xen.config >>>>>> # make bzImage >>>>>> >>>>>> Of course we could have our own tailored special kernel config for= this >>>>>> kernel but I like the simplicify of "make tinyconfig" or "make >>>>>> defconfig" followed by "make xen.config". >>>>>> >>>>>> Unless you know one kconfig option or two that we need to add to >>>>>> tinyconfig to make it work my preference is to go with defconfig f= or >>>>>> now. >>>>> >>>>> You will need to add the dom0 and SMP related config options at lea= st. >>>>> >>>>> I'll have a look at config.xen, which is a little bit weird: it >>>>> configures the backends, but not dom0. >>>> >>>> Thanks, it would be good if make tinyconfig && make xen.config would= >>>> just work on QEMU. In the meantime I'll keep defconfig for this test= , we >>>> can always improve later. >>> >>> Can you please test the attached patch? >> >> Yes, that works, thanks! >=20 > Sorry, I spoke too soon: same error as before: >=20 > https://gitlab.com/xen-project/people/sstabellini/xen/-/jobs/1722909607= /raw >=20 > (XEN) Hardware Dom0 crashed: rebooting machine in 5 seconds. >=20 > No output from the kernel. This is not very surprising, as tinyconfig doesn't have CONFIG_PRINTK. BTW, it doesn't have initrd support either (BLK_DEV_RAM and BLK_DEV_INITRD), so I added those to xen.config as well. With the (updated) attached patch the kernel boots fine as dom0 until rootfs is tried to be mounted on a physical machine. I've added CONFIG_BUG, too, in order to have more debugging output if needed. Juergen --------------FB101BD822545065E5676DF2 Content-Type: text/x-patch; charset=UTF-8; name="0001-x86-xen-update-xen.config.patch" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="0001-x86-xen-update-xen.config.patch" =46rom cb08391f332c850ba569b9232c8225ebe0e0758c Mon Sep 17 00:00:00 2001 From: Juergen Gross Date: Wed, 27 Oct 2021 09:05:28 +0200 Subject: [PATCH] x86/xen: update xen.config Update some entries in xen.config: - add ACPI as being required for running as dom0 - add SMP for convenience - add PRINTK and BUG for diagnosis support - add BLK_DEV_INITRD and BLK_DEV_RAM for initrd support - remove HIGHMEM64G as this option no longer exists - remove XEN_MAX_DOMAIN_MEMORY as this option no longer exists Signed-off-by: Juergen Gross --- arch/x86/configs/xen.config | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/arch/x86/configs/xen.config b/arch/x86/configs/xen.config index d9fc7139fd46..8db14cadf5b0 100644 --- a/arch/x86/configs/xen.config +++ b/arch/x86/configs/xen.config @@ -1,6 +1,4 @@ # global x86 required specific stuff -# On 32-bit HIGHMEM4G is not allowed -CONFIG_HIGHMEM64G=3Dy CONFIG_64BIT=3Dy =20 # These enable us to allow some of the @@ -9,12 +7,17 @@ CONFIG_HYPERVISOR_GUEST=3Dy CONFIG_PCI=3Dy CONFIG_PCI_MSI=3Dy CONFIG_X86_MCE=3Dy +CONFIG_ACPI=3Dy CONFIG_ACPI_PROCESSOR=3Dy CONFIG_CPU_FREQ=3Dy +CONFIG_SMP=3Dy +CONFIG_PRINTK=3Dy +CONFIG_BUG=3Dy +CONFIG_BLK_DEV_RAM=3Dy +CONFIG_BLK_DEV_INITRD=3Dy =20 # x86 xen specific config options CONFIG_XEN_PVH=3Dy -CONFIG_XEN_MAX_DOMAIN_MEMORY=3D500 CONFIG_XEN_SAVE_RESTORE=3Dy # CONFIG_XEN_DEBUG_FS is not set CONFIG_XEN_MCE_LOG=3Dy --=20 2.26.2 --------------FB101BD822545065E5676DF2 Content-Type: application/pgp-keys; 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