From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mxQUz-00HUER-5I for kexec@lists.infradead.org; Wed, 15 Dec 2021 09:22:58 +0000 Date: Wed, 15 Dec 2021 17:22:30 +0800 From: Baoquan He Subject: Re: [PATCH v17 04/10] x86: kdump: move xen_pv_domain() check and insert_resource() to setup_arch() Message-ID: <20211215092230.GE3023@MiWiFi-R3L-srv> References: <20211210065533.2023-1-thunder.leizhen@huawei.com> <20211210065533.2023-5-thunder.leizhen@huawei.com> <03bd43f3-14a1-dbd1-9fff-118c0885653c@huawei.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <03bd43f3-14a1-dbd1-9fff-118c0885653c@huawei.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: "Leizhen (ThunderTown)" Cc: Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org, "H . Peter Anvin" , linux-kernel@vger.kernel.org, Dave Young , Vivek Goyal , Eric Biederman , kexec@lists.infradead.org, Catalin Marinas , Will Deacon , linux-arm-kernel@lists.infradead.org, Rob Herring , Frank Rowand , devicetree@vger.kernel.org, Jonathan Corbet , linux-doc@vger.kernel.org, Randy Dunlap , Feng Zhou , Kefeng Wang , Chen Zhou On 12/15/21 at 04:56pm, Leizhen (ThunderTown) wrote: > > > On 2021/12/14 19:40, Leizhen (ThunderTown) wrote: > > > > > > On 2021/12/10 14:55, Zhen Lei wrote: > >> From: Chen Zhou > >> > >> We will make the functions reserve_crashkernel() as generic, the > >> xen_pv_domain() check in reserve_crashkernel() is relevant only to > >> x86, the same as insert_resource() in reserve_crashkernel[_low](). > >> So move xen_pv_domain() check and insert_resource() to setup_arch() > >> to keep them in x86. > >> > >> Suggested-by: Mike Rapoport > >> Signed-off-by: Chen Zhou > >> Signed-off-by: Zhen Lei > >> Tested-by: John Donnelly > >> Tested-by: Dave Kleikamp > >> Acked-by: Baoquan He > >> --- > >> arch/x86/kernel/setup.c | 19 +++++++++++-------- > >> 1 file changed, 11 insertions(+), 8 deletions(-) > >> > >> diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c > >> index bb2a0973b98059e..7ae00716a208f82 100644 > >> --- a/arch/x86/kernel/setup.c > >> +++ b/arch/x86/kernel/setup.c > >> @@ -456,7 +456,6 @@ static int __init reserve_crashkernel_low(void) > >> > >> crashk_low_res.start = low_base; > >> crashk_low_res.end = low_base + low_size - 1; > >> - insert_resource(&iomem_resource, &crashk_low_res); > >> #endif > >> return 0; > >> } > >> @@ -480,11 +479,6 @@ static void __init reserve_crashkernel(void) > >> high = true; > >> } > >> > >> - if (xen_pv_domain()) { > >> - pr_info("Ignoring crashkernel for a Xen PV domain\n"); > >> - return; > >> - } > >> - > >> /* 0 means: find the address automatically */ > >> if (!crash_base) { > >> /* > >> @@ -531,7 +525,6 @@ static void __init reserve_crashkernel(void) > >> > >> crashk_res.start = crash_base; > >> crashk_res.end = crash_base + crash_size - 1; > >> - insert_resource(&iomem_resource, &crashk_res); > >> } > >> #else > >> static void __init reserve_crashkernel(void) > >> @@ -1143,7 +1136,17 @@ void __init setup_arch(char **cmdline_p) > >> * Reserve memory for crash kernel after SRAT is parsed so that it > >> * won't consume hotpluggable memory. > >> */ > >> - reserve_crashkernel(); > > > > Hi Baoquan: > > How about move "#ifdef CONFIG_KEXEC_CORE" here, so that we can remove the > > empty reserve_crashkernel(). In fact, xen_pv_domain() is invoked only > > when CONFIG_KEXEC_CORE is enabled before. > > Hi Baoquan: > Did you miss this email? If no reply, I will keep it no change. I checked this patch, and it's no update since I acked it. Moving reserve_crashkernel() into the CONFIG_KEXEC_CORE ifdeffery is also fine to me. _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec