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From: Dave Hansen <dave.hansen@intel.com>
To: Borislav Petkov <bp@alien8.de>,
	"Kuppuswamy,
	Sathyanarayanan"  <sathyanarayanan.kuppuswamy@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>,
	x86@kernel.org, Paolo Bonzini <pbonzini@redhat.com>,
	David Hildenbrand <david@redhat.com>,
	Andrea Arcangeli <aarcange@redhat.com>,
	Josh Poimboeuf <jpoimboe@redhat.com>,
	Juergen Gross <jgross@suse.com>, Deep Shah <sdeep@vmware.com>,
	VMware Inc <pv-drivers@vmware.com>,
	Vitaly Kuznetsov <vkuznets@redhat.com>,
	Wanpeng Li <wanpengli@tencent.com>,
	Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
	Peter H Anvin <hpa@zytor.com>, Tony Luck <tony.luck@intel.com>,
	Dan Williams <dan.j.williams@intel.com>,
	Andi Kleen <ak@linux.intel.com>,
	Kirill Shutemov <kirill.shutemov@linux.intel.com>,
	Sean Christopherson <seanjc@google.com>,
	Kuppuswamy Sathyanarayanan <knsathya@kernel.org>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v10 00/11] Add TDX Guest Support (Initial support)
Date: Mon, 11 Oct 2021 09:33:23 -0700	[thread overview]
Message-ID: <1a8898d2-9ac9-f053-23a6-63fb40e2c9dc@intel.com> (raw)
In-Reply-To: <YWQ2JqkLKoDMYO/W@zn.tnic>

On 10/11/21 6:03 AM, Borislav Petkov wrote:
> For that you need to write yourself a script which does:
> 
> ARCHES=('i386' 'x86_64')
> 
> 	...
> 
>         for a in "${ARCHES[@]}"
>         do
>                 for cfg in "allnoconfig" "defconfig" "allmodconfig" "allyesconfig"
>                 do
>                         build_kernel $a $cfg
>                 done
>         done
> 
> then find a big fat machine at Intel - I don't think that would post as
> a particularly hard problem :-) - and run it in tmpfs, on your patchset.
> 
> Then you collect build logs and grep them for errors. And for additional
> coverage, when you're done with the above configs, you do randconfigs.
> That's what I do all the time with patchsets and it catches pretty much
> every build error.

FWIW, if you're in search of funky Kconfigs for compiling x86, I've got
a big bundle of them.  In addition, I suggest grepping through any
Kconfig options you add and then toggling *those* options specifically.

The three that come to mind that tend to find bugs the fastest are a
defconfig, plus removing (one at a time):

	CONFIG_CPU_SUP_INTEL
	CONFIG_SMP
	CONFIG_NUMA

In your case, I'd make sure you also flip SECURITY and X86_X2APIC, because:

> +	depends on X86_64 && CPU_SUP_INTEL && PARAVIRT
> +	depends on SECURITY
> +	depends on X86_X2APIC


  reply	other threads:[~2021-10-11 16:34 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-09  5:37 [PATCH v10 00/11] Add TDX Guest Support (Initial support) Kuppuswamy Sathyanarayanan
2021-10-09  5:37 ` [PATCH v10 01/11] x86/paravirt: Move halt paravirt calls under CONFIG_PARAVIRT Kuppuswamy Sathyanarayanan
2021-10-15 16:59   ` David Hildenbrand
2021-10-09  5:37 ` [PATCH v10 02/11] x86/tdx: Introduce INTEL_TDX_GUEST config option Kuppuswamy Sathyanarayanan
2021-10-11 18:19   ` Josh Poimboeuf
2021-10-11 18:38     ` Andi Kleen
2021-10-11 18:47       ` Kuppuswamy, Sathyanarayanan
2021-10-09  5:37 ` [PATCH v10 03/11] x86/cpufeatures: Add TDX Guest CPU feature Kuppuswamy Sathyanarayanan
2021-10-13  8:18   ` Borislav Petkov
2021-10-13 13:32     ` Sathyanarayanan Kuppuswamy
2021-10-13 19:42     ` Josh Poimboeuf
2021-10-13 23:19       ` Thomas Gleixner
2021-10-14  0:25         ` Josh Poimboeuf
2021-10-14  7:57           ` Borislav Petkov
     [not found]       ` <1a6220a5-3abd-dea1-4b2f-2acade311236@linux.intel.com>
2021-10-18 21:59         ` Borislav Petkov
2021-10-18 22:04           ` Sathyanarayanan Kuppuswamy
2021-10-13 20:44   ` Thomas Gleixner
2021-10-13 21:05     ` Sathyanarayanan Kuppuswamy
2021-10-13 21:35       ` Thomas Gleixner
2021-10-13 21:07     ` Borislav Petkov
2021-10-13 21:25       ` Thomas Gleixner
2021-10-13 21:37         ` Borislav Petkov
2021-10-13 22:28           ` Sathyanarayanan Kuppuswamy
2021-10-13 23:02             ` Thomas Gleixner
2021-10-14 17:28               ` Sathyanarayanan Kuppuswamy
2021-10-09  5:37 ` [PATCH v10 04/11] x86/tdx: Add TDX support to intel_cc_platform_has() Kuppuswamy Sathyanarayanan
2021-10-13 15:57   ` Borislav Petkov
2021-10-14  7:12   ` Thomas Gleixner
2021-10-14 17:31     ` Sathyanarayanan Kuppuswamy
2021-10-09  5:37 ` [PATCH v10 05/11] x86/tdx: Add __tdx_module_call() and __tdx_hypercall() helper functions Kuppuswamy Sathyanarayanan
2021-10-14  7:28   ` Thomas Gleixner
2021-10-15  0:19     ` Sathyanarayanan Kuppuswamy
2021-10-09  5:37 ` [PATCH v10 06/11] x86/traps: Add #VE support for TDX guest Kuppuswamy Sathyanarayanan
2021-10-14  8:30   ` Thomas Gleixner
2021-10-17  2:45     ` Sathyanarayanan Kuppuswamy
2021-10-17  3:18       ` Dave Hansen
2021-10-17  3:49         ` Sathyanarayanan Kuppuswamy
2021-10-09  5:37 ` [PATCH v10 07/11] x86/tdx: Add HLT " Kuppuswamy Sathyanarayanan
2021-10-14  9:30   ` Thomas Gleixner
2021-10-15  1:33     ` Sathyanarayanan Kuppuswamy
2021-10-15 15:03       ` Sean Christopherson
2021-10-09  5:37 ` [PATCH v10 08/11] x86/tdx: Wire up KVM hypercalls Kuppuswamy Sathyanarayanan
2021-10-14 10:21   ` Thomas Gleixner
2021-10-15  3:03     ` Sathyanarayanan Kuppuswamy
2021-10-09  5:37 ` [PATCH v10 09/11] x86/tdx: Add MSR support for TDX guest Kuppuswamy Sathyanarayanan
2021-10-09  5:37 ` [PATCH v10 10/11] x86/tdx: Don't write CSTAR MSR on Intel Kuppuswamy Sathyanarayanan
2021-10-14 10:47   ` Thomas Gleixner
2021-10-14 13:47     ` Andi Kleen
2021-10-14 14:27       ` Thomas Gleixner
2021-10-09  5:37 ` [PATCH v10 11/11] x86/tdx: Handle CPUID via #VE Kuppuswamy Sathyanarayanan
2021-10-14 12:01   ` Thomas Gleixner
2021-10-14 13:25     ` Dave Hansen
2021-10-09  7:38 ` [PATCH v10 00/11] Add TDX Guest Support (Initial support) Borislav Petkov
2021-10-09 20:56   ` Kuppuswamy, Sathyanarayanan
2021-10-11 13:03     ` Borislav Petkov
2021-10-11 16:33       ` Dave Hansen [this message]
2021-10-11 16:48         ` Dave Hansen
2021-10-11 17:04           ` Borislav Petkov

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