From: Jarkko Sakkinen <jarkko@kernel.org>
To: Borislav Petkov <bp@alien8.de>
Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
x86@kernel.org, linux-sgx@vger.kernel.org,
linux-kernel@vger.kernel.org,
Sean Christopherson <sean.j.christopherson@intel.com>,
Jethro Beekman <jethro@fortanix.com>,
Darren Kenny <darren.kenny@oracle.com>,
Serge Ayoun <serge.ayoun@intel.com>,
akpm@linux-foundation.org, andriy.shevchenko@linux.intel.com,
asapek@google.com, cedric.xing@intel.com,
chenalexchen@google.com, conradparker@google.com,
cyhanish@google.com, dave.hansen@intel.com,
haitao.huang@intel.com, kai.huang@intel.com, kai.svahn@intel.com,
kmoy@google.com, ludloff@google.com, luto@kernel.org,
nhorman@redhat.com, npmccallum@redhat.com, puiterwijk@redhat.com,
rientjes@google.com, tglx@linutronix.de, yaozhangx@google.com,
mikko.ylinen@intel.com
Subject: Re: [PATCH v40 03/24] x86/sgx: Initialize metadata for Enclave Page Cache (EPC) sections
Date: Wed, 4 Nov 2020 21:04:43 +0200 [thread overview]
Message-ID: <20201104190443.GA318315@kernel.org> (raw)
In-Reply-To: <20201104182129.GD23298@zn.tnic>
On Wed, Nov 04, 2020 at 07:21:29PM +0100, Borislav Petkov wrote:
> On Wed, Nov 04, 2020 at 04:54:09PM +0200, Jarkko Sakkinen wrote:
> > +static void __init sgx_init(void)
> > +{
> > + int i;
> > +
> > + if (!boot_cpu_has(X86_FEATURE_SGX))
>
> Guys, you need to build-test *every* *single* patch - otherwise we break
> bisectability and that is a no-no:
I've done it quite a few times (every time I've rebased my tree). I did
today too before sending but forgot to redo git format-patch again (was
the very last thing). In my tree the order is:
e987eb0c95dd (HEAD -> master, origin/master, origin/HEAD) x86/sgx: Update MAINTAINERS
90dc0ee37f44 docs: x86/sgx: Document SGX kernel architecture
1c2e9bdab128 x86/sgx: Add ptrace() support for the SGX driver
05ce4345fb5f x86/sgx: Add a page reclaimer
94c1f778fa09 selftests/x86: Add a selftest for SGX
741b631d197b x86/vdso: Implement a vDSO for Intel SGX enclave call
5744b02641ff x86/traps: Attempt to fixup exceptions in vDSO before signaling
e957c7e79dd0 x86/fault: Add helper function to sanitize error code
96cc520b2bc9 x86/vdso: Add support for exception fixup in vDSO functions
4aff9d81b2fe x86/sgx: Add SGX_IOC_ENCLAVE_PROVISION
ea9bc917c469 x86/sgx: Add SGX_IOC_ENCLAVE_INIT
6e61e843291d x86/sgx: Add SGX_IOC_ENCLAVE_ADD_PAGES
4235ce22235e x86/sgx: Add SGX_IOC_ENCLAVE_CREATE
681299401c91 x86/sgx: Add SGX misc driver interface
fbd69fd9acf4 mm: Add 'mprotect' hook to struct vm_operations_struct
93b27a8908aa x86/sgx: Add SGX page allocator functions
5984a2ca130c x86/cpu/intel: Add nosgx kernel parameter
e131efe5ba06 x86/cpu/intel: Detect SGX support
b0bacb54d36c x86/mm: x86/sgx: Signal SIGSEGV with PF_SGX
0c64b4c07298 x86/sgx: Initialize metadata for Enclave Page Cache (EPC) sections
358d17098c4c x86/cpufeatures: x86/msr: Add Intel SGX Launch Control hardware bits
8f7ab60e5458 x86/cpufeatures: x86/msr: Add Intel SGX hardware bits
0fb18ca935cf x86/sgx: Add wrappers for ENCLS functions
3dbc95582baf x86/sgx: Add SGX architectural data structures
I always do this before I send the patch set (or rebase my tree):
for x in {23..0}
do
git checkout master~$x
git clean -f -d -x
make tinyconfig && cat >> .config <<EOF
CONFIG_64BIT=y
CONFIG_CRYPTO=y
CONFIG_CRYPTO_SHA256=y
CONFIG_X86_SGX=y
CONFIG_DEBUG_INFO=y
EOF
yes '' | make oldconfig && make CC="ccache gcc" -j$(nproc) || break
git --no-pager log --oneline -1 >> success.txt
done
The order is the only difference between the patch set and my tree (i.e.
diff's do not conflict between the orderings).
> arch/x86/kernel/cpu/sgx/main.c: In function ‘sgx_init’:
> arch/x86/kernel/cpu/sgx/main.c:172:20: error: ‘X86_FEATURE_SGX’ undeclared (first use in this function); did you mean ‘X86_FEATURE_SMX’?
> 172 | if (!boot_cpu_has(X86_FEATURE_SGX))
> | ^~~~~~~~~~~~~~~
> ./arch/x86/include/asm/cpufeature.h:118:24: note: in definition of macro ‘cpu_has’
> 118 | (__builtin_constant_p(bit) && REQUIRED_MASK_BIT_SET(bit) ? 1 : \
> | ^~~
> arch/x86/kernel/cpu/sgx/main.c:172:7: note: in expansion of macro ‘boot_cpu_has’
> 172 | if (!boot_cpu_has(X86_FEATURE_SGX))
> | ^~~~~~~~~~~~
> arch/x86/kernel/cpu/sgx/main.c:172:20: note: each undeclared identifier is reported only once for each function it appears in
> 172 | if (!boot_cpu_has(X86_FEATURE_SGX))
> | ^~~~~~~~~~~~~~~
> ./arch/x86/include/asm/cpufeature.h:118:24: note: in definition of macro ‘cpu_has’
> 118 | (__builtin_constant_p(bit) && REQUIRED_MASK_BIT_SET(bit) ? 1 : \
> | ^~~
> arch/x86/kernel/cpu/sgx/main.c:172:7: note: in expansion of macro ‘boot_cpu_has’
> 172 | if (!boot_cpu_has(X86_FEATURE_SGX))
> | ^~~~~~~~~~~~
> make[4]: *** [scripts/Makefile.build:283: arch/x86/kernel/cpu/sgx/main.o] Error 1
> make[3]: *** [scripts/Makefile.build:500: arch/x86/kernel/cpu/sgx] Error 2
> make[2]: *** [scripts/Makefile.build:500: arch/x86/kernel/cpu] Error 2
> make[2]: *** Waiting for unfinished jobs....
> make[1]: *** [scripts/Makefile.build:500: arch/x86/kernel] Error 2
> make[1]: *** Waiting for unfinished jobs....
> make: *** [Makefile:1799: arch/x86] Error 2
> make: *** Waiting for unfinished jobs....
>
> --
> Regards/Gruss,
> Boris.
>
> https://people.kernel.org/tglx/notes-about-netiquette
/Jarkko
next prev parent reply other threads:[~2020-11-04 19:04 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-04 14:54 [PATCH v40 00/24] Intel SGX foundations Jarkko Sakkinen
2020-11-04 14:54 ` [PATCH v40 01/24] x86/sgx: Add SGX architectural data structures Jarkko Sakkinen
2020-11-04 14:54 ` [PATCH v40 02/24] x86/sgx: Add wrappers for ENCLS functions Jarkko Sakkinen
2020-11-04 14:54 ` [PATCH v40 03/24] x86/sgx: Initialize metadata for Enclave Page Cache (EPC) sections Jarkko Sakkinen
2020-11-04 18:21 ` Borislav Petkov
2020-11-04 19:04 ` Jarkko Sakkinen [this message]
2020-11-04 19:09 ` Jarkko Sakkinen
2020-11-04 19:12 ` Borislav Petkov
2020-11-04 14:54 ` [PATCH v40 04/24] x86/cpufeatures: x86/msr: Add Intel SGX hardware bits Jarkko Sakkinen
2020-11-04 14:54 ` [PATCH v40 05/24] x86/cpufeatures: x86/msr: Add Intel SGX Launch Control " Jarkko Sakkinen
2020-11-04 14:54 ` [PATCH v40 06/24] x86/mm: x86/sgx: Signal SIGSEGV with PF_SGX Jarkko Sakkinen
2020-11-04 14:54 ` [PATCH v40 07/24] x86/cpu/intel: Detect SGX support Jarkko Sakkinen
2020-11-04 14:54 ` [PATCH v40 08/24] x86/cpu/intel: Add nosgx kernel parameter Jarkko Sakkinen
2020-11-04 14:54 ` [PATCH v40 09/24] x86/sgx: Add SGX page allocator functions Jarkko Sakkinen
2020-11-05 15:08 ` Borislav Petkov
2020-11-04 14:54 ` [PATCH v40 10/24] mm: Add 'mprotect' hook to struct vm_operations_struct Jarkko Sakkinen
2020-11-05 16:04 ` Borislav Petkov
2020-11-05 17:33 ` Dave Hansen
2020-11-06 10:04 ` Mel Gorman
2020-11-06 16:51 ` Jarkko Sakkinen
2020-11-06 20:37 ` Borislav Petkov
2020-11-06 22:04 ` Jarkko Sakkinen
2020-11-06 22:31 ` Borislav Petkov
2020-11-06 17:43 ` Dr. Greg
2020-11-06 17:54 ` Dave Hansen
2020-11-07 15:09 ` Dr. Greg
2020-11-07 19:16 ` Dave Hansen
2020-11-12 20:58 ` Dr. Greg
2020-11-12 21:31 ` Dave Hansen
2020-11-12 22:41 ` Andy Lutomirski
2020-11-16 18:00 ` Dr. Greg
2020-11-19 1:39 ` Haitao Huang
2020-11-20 17:31 ` Dr. Greg
2020-11-15 18:59 ` Dr. Greg
2020-11-06 21:13 ` Matthew Wilcox
2020-11-06 21:23 ` Dave Hansen
2020-11-07 15:27 ` Dr. Greg
2020-11-04 14:54 ` [PATCH v40 11/24] x86/sgx: Add SGX misc driver interface Jarkko Sakkinen
2020-11-05 1:10 ` Jarkko Sakkinen
2020-11-05 1:16 ` Jarkko Sakkinen
2020-11-05 16:05 ` Borislav Petkov
2020-11-05 17:57 ` Jarkko Sakkinen
2020-11-05 18:10 ` Borislav Petkov
2020-11-06 16:07 ` Jarkko Sakkinen
2020-11-06 17:09 ` Borislav Petkov
2020-11-06 22:01 ` Jarkko Sakkinen
2020-11-04 14:54 ` [PATCH v40 12/24] x86/sgx: Add SGX_IOC_ENCLAVE_CREATE Jarkko Sakkinen
2020-11-04 14:54 ` [PATCH v40 13/24] x86/sgx: Add SGX_IOC_ENCLAVE_ADD_PAGES Jarkko Sakkinen
2020-11-04 14:54 ` [PATCH v40 14/24] x86/sgx: Add SGX_IOC_ENCLAVE_INIT Jarkko Sakkinen
2020-11-04 14:54 ` [PATCH v40 15/24] x86/sgx: Add SGX_IOC_ENCLAVE_PROVISION Jarkko Sakkinen
2020-11-04 14:54 ` [PATCH v40 16/24] x86/vdso: Add support for exception fixup in vDSO functions Jarkko Sakkinen
2020-11-04 14:54 ` [PATCH v40 17/24] x86/fault: Add helper function to sanitize error code Jarkko Sakkinen
2020-11-04 14:54 ` [PATCH v40 18/24] x86/traps: Attempt to fixup exceptions in vDSO before signaling Jarkko Sakkinen
2020-11-04 14:54 ` [PATCH v40 19/24] x86/vdso: Implement a vDSO for Intel SGX enclave call Jarkko Sakkinen
2020-11-08 18:24 ` Jethro Beekman
2020-11-08 20:08 ` Jethro Beekman
2020-11-08 20:26 ` Dave Hansen
2020-11-08 20:20 ` Jethro Beekman
2020-11-08 20:30 ` Dave Hansen
2020-11-04 14:54 ` [PATCH v40 20/24] selftests/x86: Add a selftest for SGX Jarkko Sakkinen
2020-11-04 14:54 ` [PATCH v40 21/24] x86/sgx: Add a page reclaimer Jarkko Sakkinen
2020-11-04 14:54 ` [PATCH v40 22/24] x86/sgx: Add ptrace() support for the SGX driver Jarkko Sakkinen
2020-11-04 14:54 ` [PATCH v40 23/24] docs: x86/sgx: Document SGX kernel architecture Jarkko Sakkinen
2020-11-04 14:54 ` [PATCH v40 24/24] x86/sgx: Update MAINTAINERS Jarkko Sakkinen
2020-11-08 20:48 ` [PATCH v40 00/24] Intel SGX foundations Jethro Beekman
[not found] ` <20201108035630.11540-1-hdanton@sina.com>
2020-11-09 19:59 ` [PATCH v40 21/24] x86/sgx: Add a page reclaimer Jarkko Sakkinen
2020-11-21 15:12 ` [PATCH v40 00/24] Intel SGX foundations Dr. Greg
2020-11-21 16:25 ` Dave Hansen
2020-11-24 10:55 ` Dr. Greg
2020-11-24 17:49 ` Andy Lutomirski
2020-11-21 18:36 ` Andy Lutomirski
2020-11-24 18:40 ` Dr. Greg
2020-11-24 21:57 ` Andy Lutomirski
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