* arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
@ 2022-08-15 7:23 ` Dan Carpenter
0 siblings, 0 replies; 12+ messages in thread
From: kernel test robot @ 2022-08-13 17:44 UTC (permalink / raw)
To: kbuild
[-- Attachment #1: Type: text/plain, Size: 8267 bytes --]
BCC: lkp(a)intel.com
CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: "Janis Schoetterl-Glausch" <scgl@linux.ibm.com>
CC: Janosch Frank <frankja@linux.ibm.com>
CC: Claudio Imbrenda <imbrenda@linux.ibm.com>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 69dac8e431af26173ca0a1ebc87054e01c585bcc
commit: 7faa543df19bf62d4583a64d3902705747f2ad29 KVM: s390: gaccess: Refactor access address range check
date: 8 months ago
:::::: branch date: 16 hours ago
:::::: commit date: 8 months ago
config: s390-randconfig-m031-20220812 (https://download.01.org/0day-ci/archive/20220814/202208140141.4uzWszG4-lkp(a)intel.com/config)
compiler: s390-linux-gcc (GCC) 12.1.0
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings:
arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
vim +/prot +859 arch/s390/kvm/gaccess.c
2293897805c2fe Heiko Carstens 2014-01-01 796
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 797 /**
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 798 * guest_range_to_gpas() - Calculate guest physical addresses of page fragments
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 799 * covering a logical range
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 800 * @vcpu: virtual cpu
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 801 * @ga: guest address, start of range
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 802 * @ar: access register
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 803 * @gpas: output argument, may be NULL
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 804 * @len: length of range in bytes
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 805 * @asce: address-space-control element to use for translation
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 806 * @mode: access mode
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 807 *
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 808 * Translate a logical range to a series of guest absolute addresses,
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 809 * such that the concatenation of page fragments starting at each gpa make up
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 810 * the whole range.
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 811 * The translation is performed as if done by the cpu for the given @asce, @ar,
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 812 * @mode and state of the @vcpu.
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 813 * If the translation causes an exception, its program interruption code is
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 814 * returned and the &struct kvm_s390_pgm_info pgm member of @vcpu is modified
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 815 * such that a subsequent call to kvm_s390_inject_prog_vcpu() will inject
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 816 * a correct exception into the guest.
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 817 * The resulting gpas are stored into @gpas, unless it is NULL.
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 818 *
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 819 * Note: All fragments except the first one start at the beginning of a page.
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 820 * When deriving the boundaries of a fragment from a gpa, all but the last
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 821 * fragment end at the end of the page.
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 822 *
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 823 * Return:
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 824 * * 0 - success
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 825 * * <0 - translation could not be performed, for example if guest
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 826 * memory could not be accessed
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 827 * * >0 - an access exception occurred. In this case the returned value
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 828 * is the program interruption code and the contents of pgm may
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 829 * be used to inject an exception into the guest.
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 830 */
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 831 static int guest_range_to_gpas(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar,
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 832 unsigned long *gpas, unsigned long len,
92c9632119b67f David Hildenbrand 2015-11-16 833 const union asce asce, enum gacc_mode mode)
2293897805c2fe Heiko Carstens 2014-01-01 834 {
2293897805c2fe Heiko Carstens 2014-01-01 835 psw_t *psw = &vcpu->arch.sie_block->gpsw;
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 836 unsigned int offset = offset_in_page(ga);
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 837 unsigned int fragment_len;
cde0dcfb5df1db David Hildenbrand 2016-05-31 838 int lap_enabled, rc = 0;
6ae1574c2a24ee Christian Borntraeger 2017-06-07 839 enum prot_type prot;
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 840 unsigned long gpa;
2293897805c2fe Heiko Carstens 2014-01-01 841
75a1812230ad7a Alexander Yarygin 2015-01-22 842 lap_enabled = low_address_protection_enabled(vcpu, asce);
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 843 while (min(PAGE_SIZE - offset, len) > 0) {
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 844 fragment_len = min(PAGE_SIZE - offset, len);
2293897805c2fe Heiko Carstens 2014-01-01 845 ga = kvm_s390_logical_to_effective(vcpu, ga);
cde0dcfb5df1db David Hildenbrand 2016-05-31 846 if (mode == GACC_STORE && lap_enabled && is_low_address(ga))
cde0dcfb5df1db David Hildenbrand 2016-05-31 847 return trans_exc(vcpu, PGM_PROTECTION, ga, ar, mode,
cde0dcfb5df1db David Hildenbrand 2016-05-31 848 PROT_TYPE_LA);
a752598254016d Heiko Carstens 2017-06-03 849 if (psw_bits(*psw).dat) {
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 850 rc = guest_translate(vcpu, ga, &gpa, asce, mode, &prot);
2293897805c2fe Heiko Carstens 2014-01-01 851 if (rc < 0)
2293897805c2fe Heiko Carstens 2014-01-01 852 return rc;
2293897805c2fe Heiko Carstens 2014-01-01 853 } else {
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 854 gpa = kvm_s390_real_to_abs(vcpu, ga);
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 855 if (kvm_is_error_gpa(vcpu->kvm, gpa))
cde0dcfb5df1db David Hildenbrand 2016-05-31 856 rc = PGM_ADDRESSING;
2293897805c2fe Heiko Carstens 2014-01-01 857 }
cde0dcfb5df1db David Hildenbrand 2016-05-31 858 if (rc)
6ae1574c2a24ee Christian Borntraeger 2017-06-07 @859 return trans_exc(vcpu, rc, ga, ar, mode, prot);
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 860 if (gpas)
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 861 *gpas++ = gpa;
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 862 offset = 0;
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 863 ga += fragment_len;
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 864 len -= fragment_len;
2293897805c2fe Heiko Carstens 2014-01-01 865 }
2293897805c2fe Heiko Carstens 2014-01-01 866 return 0;
2293897805c2fe Heiko Carstens 2014-01-01 867 }
2293897805c2fe Heiko Carstens 2014-01-01 868
:::::: The code at line 859 was first introduced by commit
:::::: 6ae1574c2a24eec5efa8bac305a8f87c839acc64 KVM: s390: implement instruction execution protection for emulated ifetch
:::::: TO: Christian Borntraeger <borntraeger@de.ibm.com>
:::::: CC: Christian Borntraeger <borntraeger@de.ibm.com>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
^ permalink raw reply [flat|nested] 12+ messages in thread
* arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
@ 2022-08-15 7:23 ` Dan Carpenter
0 siblings, 0 replies; 12+ messages in thread
From: Dan Carpenter @ 2022-08-15 7:23 UTC (permalink / raw)
To: kbuild, Janis Schoetterl-Glausch
Cc: lkp, kbuild-all, linux-kernel, Janosch Frank, Claudio Imbrenda
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 69dac8e431af26173ca0a1ebc87054e01c585bcc
commit: 7faa543df19bf62d4583a64d3902705747f2ad29 KVM: s390: gaccess: Refactor access address range check
config: s390-randconfig-m031-20220812 (https://download.01.org/0day-ci/archive/20220814/202208140141.4uzWszG4-lkp@intel.com/config)
compiler: s390-linux-gcc (GCC) 12.1.0
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings:
arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
vim +/prot +859 arch/s390/kvm/gaccess.c
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 831 static int guest_range_to_gpas(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar,
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 832 unsigned long *gpas, unsigned long len,
92c9632119b67f David Hildenbrand 2015-11-16 833 const union asce asce, enum gacc_mode mode)
2293897805c2fe Heiko Carstens 2014-01-01 834 {
2293897805c2fe Heiko Carstens 2014-01-01 835 psw_t *psw = &vcpu->arch.sie_block->gpsw;
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 836 unsigned int offset = offset_in_page(ga);
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 837 unsigned int fragment_len;
cde0dcfb5df1db David Hildenbrand 2016-05-31 838 int lap_enabled, rc = 0;
6ae1574c2a24ee Christian Borntraeger 2017-06-07 839 enum prot_type prot;
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 840 unsigned long gpa;
2293897805c2fe Heiko Carstens 2014-01-01 841
75a1812230ad7a Alexander Yarygin 2015-01-22 842 lap_enabled = low_address_protection_enabled(vcpu, asce);
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 843 while (min(PAGE_SIZE - offset, len) > 0) {
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 844 fragment_len = min(PAGE_SIZE - offset, len);
2293897805c2fe Heiko Carstens 2014-01-01 845 ga = kvm_s390_logical_to_effective(vcpu, ga);
cde0dcfb5df1db David Hildenbrand 2016-05-31 846 if (mode == GACC_STORE && lap_enabled && is_low_address(ga))
cde0dcfb5df1db David Hildenbrand 2016-05-31 847 return trans_exc(vcpu, PGM_PROTECTION, ga, ar, mode,
cde0dcfb5df1db David Hildenbrand 2016-05-31 848 PROT_TYPE_LA);
a752598254016d Heiko Carstens 2017-06-03 849 if (psw_bits(*psw).dat) {
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 850 rc = guest_translate(vcpu, ga, &gpa, asce, mode, &prot);
2293897805c2fe Heiko Carstens 2014-01-01 851 if (rc < 0)
2293897805c2fe Heiko Carstens 2014-01-01 852 return rc;
2293897805c2fe Heiko Carstens 2014-01-01 853 } else {
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 854 gpa = kvm_s390_real_to_abs(vcpu, ga);
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 855 if (kvm_is_error_gpa(vcpu->kvm, gpa))
cde0dcfb5df1db David Hildenbrand 2016-05-31 856 rc = PGM_ADDRESSING;
^^^^^^^^^^^^^^^^^^^^
"rc" set but "prot" not initialized.
2293897805c2fe Heiko Carstens 2014-01-01 857 }
cde0dcfb5df1db David Hildenbrand 2016-05-31 858 if (rc)
6ae1574c2a24ee Christian Borntraeger 2017-06-07 @859 return trans_exc(vcpu, rc, ga, ar, mode, prot);
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 860 if (gpas)
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 861 *gpas++ = gpa;
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 862 offset = 0;
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 863 ga += fragment_len;
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 864 len -= fragment_len;
2293897805c2fe Heiko Carstens 2014-01-01 865 }
2293897805c2fe Heiko Carstens 2014-01-01 866 return 0;
2293897805c2fe Heiko Carstens 2014-01-01 867 }
--
0-DAY CI Kernel Test Service
https://01.org/lkp
^ permalink raw reply [flat|nested] 12+ messages in thread
* arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
@ 2022-08-15 7:23 ` Dan Carpenter
0 siblings, 0 replies; 12+ messages in thread
From: Dan Carpenter @ 2022-08-15 7:23 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 4202 bytes --]
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 69dac8e431af26173ca0a1ebc87054e01c585bcc
commit: 7faa543df19bf62d4583a64d3902705747f2ad29 KVM: s390: gaccess: Refactor access address range check
config: s390-randconfig-m031-20220812 (https://download.01.org/0day-ci/archive/20220814/202208140141.4uzWszG4-lkp(a)intel.com/config)
compiler: s390-linux-gcc (GCC) 12.1.0
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings:
arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
vim +/prot +859 arch/s390/kvm/gaccess.c
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 831 static int guest_range_to_gpas(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar,
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 832 unsigned long *gpas, unsigned long len,
92c9632119b67f David Hildenbrand 2015-11-16 833 const union asce asce, enum gacc_mode mode)
2293897805c2fe Heiko Carstens 2014-01-01 834 {
2293897805c2fe Heiko Carstens 2014-01-01 835 psw_t *psw = &vcpu->arch.sie_block->gpsw;
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 836 unsigned int offset = offset_in_page(ga);
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 837 unsigned int fragment_len;
cde0dcfb5df1db David Hildenbrand 2016-05-31 838 int lap_enabled, rc = 0;
6ae1574c2a24ee Christian Borntraeger 2017-06-07 839 enum prot_type prot;
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 840 unsigned long gpa;
2293897805c2fe Heiko Carstens 2014-01-01 841
75a1812230ad7a Alexander Yarygin 2015-01-22 842 lap_enabled = low_address_protection_enabled(vcpu, asce);
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 843 while (min(PAGE_SIZE - offset, len) > 0) {
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 844 fragment_len = min(PAGE_SIZE - offset, len);
2293897805c2fe Heiko Carstens 2014-01-01 845 ga = kvm_s390_logical_to_effective(vcpu, ga);
cde0dcfb5df1db David Hildenbrand 2016-05-31 846 if (mode == GACC_STORE && lap_enabled && is_low_address(ga))
cde0dcfb5df1db David Hildenbrand 2016-05-31 847 return trans_exc(vcpu, PGM_PROTECTION, ga, ar, mode,
cde0dcfb5df1db David Hildenbrand 2016-05-31 848 PROT_TYPE_LA);
a752598254016d Heiko Carstens 2017-06-03 849 if (psw_bits(*psw).dat) {
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 850 rc = guest_translate(vcpu, ga, &gpa, asce, mode, &prot);
2293897805c2fe Heiko Carstens 2014-01-01 851 if (rc < 0)
2293897805c2fe Heiko Carstens 2014-01-01 852 return rc;
2293897805c2fe Heiko Carstens 2014-01-01 853 } else {
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 854 gpa = kvm_s390_real_to_abs(vcpu, ga);
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 855 if (kvm_is_error_gpa(vcpu->kvm, gpa))
cde0dcfb5df1db David Hildenbrand 2016-05-31 856 rc = PGM_ADDRESSING;
^^^^^^^^^^^^^^^^^^^^
"rc" set but "prot" not initialized.
2293897805c2fe Heiko Carstens 2014-01-01 857 }
cde0dcfb5df1db David Hildenbrand 2016-05-31 858 if (rc)
6ae1574c2a24ee Christian Borntraeger 2017-06-07 @859 return trans_exc(vcpu, rc, ga, ar, mode, prot);
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 860 if (gpas)
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 861 *gpas++ = gpa;
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 862 offset = 0;
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 863 ga += fragment_len;
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 864 len -= fragment_len;
2293897805c2fe Heiko Carstens 2014-01-01 865 }
2293897805c2fe Heiko Carstens 2014-01-01 866 return 0;
2293897805c2fe Heiko Carstens 2014-01-01 867 }
--
0-DAY CI Kernel Test Service
https://01.org/lkp
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
2022-08-15 7:23 ` Dan Carpenter
@ 2022-08-17 10:30 ` Janis Schoetterl-Glausch
-1 siblings, 0 replies; 12+ messages in thread
From: Janis Schoetterl-Glausch @ 2022-08-17 10:30 UTC (permalink / raw)
To: Dan Carpenter, kbuild
Cc: lkp, kbuild-all, linux-kernel, Janosch Frank, Claudio Imbrenda
On 8/15/22 09:23, Dan Carpenter wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: 69dac8e431af26173ca0a1ebc87054e01c585bcc
> commit: 7faa543df19bf62d4583a64d3902705747f2ad29 KVM: s390: gaccess: Refactor access address range check
> config: s390-randconfig-m031-20220812 (https://download.01.org/0day-ci/archive/20220814/202208140141.4uzWszG4-lkp@intel.com/config)
> compiler: s390-linux-gcc (GCC) 12.1.0
>
> If you fix the issue, kindly add following tag where applicable
> Reported-by: kernel test robot <lkp@intel.com>
> Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
>
> smatch warnings:
> arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
>
> vim +/prot +859 arch/s390/kvm/gaccess.c
>
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 831 static int guest_range_to_gpas(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar,
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 832 unsigned long *gpas, unsigned long len,
> 92c9632119b67f David Hildenbrand 2015-11-16 833 const union asce asce, enum gacc_mode mode)
> 2293897805c2fe Heiko Carstens 2014-01-01 834 {
> 2293897805c2fe Heiko Carstens 2014-01-01 835 psw_t *psw = &vcpu->arch.sie_block->gpsw;
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 836 unsigned int offset = offset_in_page(ga);
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 837 unsigned int fragment_len;
> cde0dcfb5df1db David Hildenbrand 2016-05-31 838 int lap_enabled, rc = 0;
> 6ae1574c2a24ee Christian Borntraeger 2017-06-07 839 enum prot_type prot;
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 840 unsigned long gpa;
> 2293897805c2fe Heiko Carstens 2014-01-01 841
> 75a1812230ad7a Alexander Yarygin 2015-01-22 842 lap_enabled = low_address_protection_enabled(vcpu, asce);
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 843 while (min(PAGE_SIZE - offset, len) > 0) {
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 844 fragment_len = min(PAGE_SIZE - offset, len);
> 2293897805c2fe Heiko Carstens 2014-01-01 845 ga = kvm_s390_logical_to_effective(vcpu, ga);
> cde0dcfb5df1db David Hildenbrand 2016-05-31 846 if (mode == GACC_STORE && lap_enabled && is_low_address(ga))
> cde0dcfb5df1db David Hildenbrand 2016-05-31 847 return trans_exc(vcpu, PGM_PROTECTION, ga, ar, mode,
> cde0dcfb5df1db David Hildenbrand 2016-05-31 848 PROT_TYPE_LA);
> a752598254016d Heiko Carstens 2017-06-03 849 if (psw_bits(*psw).dat) {
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 850 rc = guest_translate(vcpu, ga, &gpa, asce, mode, &prot);
> 2293897805c2fe Heiko Carstens 2014-01-01 851 if (rc < 0)
> 2293897805c2fe Heiko Carstens 2014-01-01 852 return rc;
> 2293897805c2fe Heiko Carstens 2014-01-01 853 } else {
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 854 gpa = kvm_s390_real_to_abs(vcpu, ga);
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 855 if (kvm_is_error_gpa(vcpu->kvm, gpa))
> cde0dcfb5df1db David Hildenbrand 2016-05-31 856 rc = PGM_ADDRESSING;
> ^^^^^^^^^^^^^^^^^^^^
>
> "rc" set but "prot" not initialized.
prot is only used in case of PGM_PROTECTION.
Because of that, we could initialize prot to an arbitrary value, but that seems misleading and a bit ugly to me.
Alternatively, we could introduce a PROT_NONE.
Or we do nothing, since there is no actual problem.
@Janosch, @Claudio, what do you think?
>
> 2293897805c2fe Heiko Carstens 2014-01-01 857 }
> cde0dcfb5df1db David Hildenbrand 2016-05-31 858 if (rc)
> 6ae1574c2a24ee Christian Borntraeger 2017-06-07 @859 return trans_exc(vcpu, rc, ga, ar, mode, prot);
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 860 if (gpas)
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 861 *gpas++ = gpa;
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 862 offset = 0;
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 863 ga += fragment_len;
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 864 len -= fragment_len;
> 2293897805c2fe Heiko Carstens 2014-01-01 865 }
> 2293897805c2fe Heiko Carstens 2014-01-01 866 return 0;
> 2293897805c2fe Heiko Carstens 2014-01-01 867 }
>
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
@ 2022-08-17 10:30 ` Janis Schoetterl-Glausch
0 siblings, 0 replies; 12+ messages in thread
From: Janis Schoetterl-Glausch @ 2022-08-17 10:30 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 4606 bytes --]
On 8/15/22 09:23, Dan Carpenter wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: 69dac8e431af26173ca0a1ebc87054e01c585bcc
> commit: 7faa543df19bf62d4583a64d3902705747f2ad29 KVM: s390: gaccess: Refactor access address range check
> config: s390-randconfig-m031-20220812 (https://download.01.org/0day-ci/archive/20220814/202208140141.4uzWszG4-lkp(a)intel.com/config)
> compiler: s390-linux-gcc (GCC) 12.1.0
>
> If you fix the issue, kindly add following tag where applicable
> Reported-by: kernel test robot <lkp@intel.com>
> Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
>
> smatch warnings:
> arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
>
> vim +/prot +859 arch/s390/kvm/gaccess.c
>
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 831 static int guest_range_to_gpas(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar,
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 832 unsigned long *gpas, unsigned long len,
> 92c9632119b67f David Hildenbrand 2015-11-16 833 const union asce asce, enum gacc_mode mode)
> 2293897805c2fe Heiko Carstens 2014-01-01 834 {
> 2293897805c2fe Heiko Carstens 2014-01-01 835 psw_t *psw = &vcpu->arch.sie_block->gpsw;
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 836 unsigned int offset = offset_in_page(ga);
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 837 unsigned int fragment_len;
> cde0dcfb5df1db David Hildenbrand 2016-05-31 838 int lap_enabled, rc = 0;
> 6ae1574c2a24ee Christian Borntraeger 2017-06-07 839 enum prot_type prot;
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 840 unsigned long gpa;
> 2293897805c2fe Heiko Carstens 2014-01-01 841
> 75a1812230ad7a Alexander Yarygin 2015-01-22 842 lap_enabled = low_address_protection_enabled(vcpu, asce);
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 843 while (min(PAGE_SIZE - offset, len) > 0) {
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 844 fragment_len = min(PAGE_SIZE - offset, len);
> 2293897805c2fe Heiko Carstens 2014-01-01 845 ga = kvm_s390_logical_to_effective(vcpu, ga);
> cde0dcfb5df1db David Hildenbrand 2016-05-31 846 if (mode == GACC_STORE && lap_enabled && is_low_address(ga))
> cde0dcfb5df1db David Hildenbrand 2016-05-31 847 return trans_exc(vcpu, PGM_PROTECTION, ga, ar, mode,
> cde0dcfb5df1db David Hildenbrand 2016-05-31 848 PROT_TYPE_LA);
> a752598254016d Heiko Carstens 2017-06-03 849 if (psw_bits(*psw).dat) {
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 850 rc = guest_translate(vcpu, ga, &gpa, asce, mode, &prot);
> 2293897805c2fe Heiko Carstens 2014-01-01 851 if (rc < 0)
> 2293897805c2fe Heiko Carstens 2014-01-01 852 return rc;
> 2293897805c2fe Heiko Carstens 2014-01-01 853 } else {
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 854 gpa = kvm_s390_real_to_abs(vcpu, ga);
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 855 if (kvm_is_error_gpa(vcpu->kvm, gpa))
> cde0dcfb5df1db David Hildenbrand 2016-05-31 856 rc = PGM_ADDRESSING;
> ^^^^^^^^^^^^^^^^^^^^
>
> "rc" set but "prot" not initialized.
prot is only used in case of PGM_PROTECTION.
Because of that, we could initialize prot to an arbitrary value, but that seems misleading and a bit ugly to me.
Alternatively, we could introduce a PROT_NONE.
Or we do nothing, since there is no actual problem.
@Janosch, @Claudio, what do you think?
>
> 2293897805c2fe Heiko Carstens 2014-01-01 857 }
> cde0dcfb5df1db David Hildenbrand 2016-05-31 858 if (rc)
> 6ae1574c2a24ee Christian Borntraeger 2017-06-07 @859 return trans_exc(vcpu, rc, ga, ar, mode, prot);
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 860 if (gpas)
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 861 *gpas++ = gpa;
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 862 offset = 0;
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 863 ga += fragment_len;
> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 864 len -= fragment_len;
> 2293897805c2fe Heiko Carstens 2014-01-01 865 }
> 2293897805c2fe Heiko Carstens 2014-01-01 866 return 0;
> 2293897805c2fe Heiko Carstens 2014-01-01 867 }
>
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
2022-08-17 10:30 ` Janis Schoetterl-Glausch
@ 2022-08-17 14:38 ` Claudio Imbrenda
-1 siblings, 0 replies; 12+ messages in thread
From: Claudio Imbrenda @ 2022-08-17 14:38 UTC (permalink / raw)
To: Janis Schoetterl-Glausch
Cc: Dan Carpenter, kbuild, lkp, kbuild-all, linux-kernel, Janosch Frank
On Wed, 17 Aug 2022 12:30:11 +0200
Janis Schoetterl-Glausch <scgl@linux.ibm.com> wrote:
> On 8/15/22 09:23, Dan Carpenter wrote:
> > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> > head: 69dac8e431af26173ca0a1ebc87054e01c585bcc
> > commit: 7faa543df19bf62d4583a64d3902705747f2ad29 KVM: s390: gaccess: Refactor access address range check
> > config: s390-randconfig-m031-20220812 (https://download.01.org/0day-ci/archive/20220814/202208140141.4uzWszG4-lkp@intel.com/config)
> > compiler: s390-linux-gcc (GCC) 12.1.0
> >
> > If you fix the issue, kindly add following tag where applicable
> > Reported-by: kernel test robot <lkp@intel.com>
> > Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
> >
> > smatch warnings:
> > arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
> >
> > vim +/prot +859 arch/s390/kvm/gaccess.c
> >
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 831 static int guest_range_to_gpas(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar,
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 832 unsigned long *gpas, unsigned long len,
> > 92c9632119b67f David Hildenbrand 2015-11-16 833 const union asce asce, enum gacc_mode mode)
> > 2293897805c2fe Heiko Carstens 2014-01-01 834 {
> > 2293897805c2fe Heiko Carstens 2014-01-01 835 psw_t *psw = &vcpu->arch.sie_block->gpsw;
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 836 unsigned int offset = offset_in_page(ga);
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 837 unsigned int fragment_len;
> > cde0dcfb5df1db David Hildenbrand 2016-05-31 838 int lap_enabled, rc = 0;
> > 6ae1574c2a24ee Christian Borntraeger 2017-06-07 839 enum prot_type prot;
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 840 unsigned long gpa;
> > 2293897805c2fe Heiko Carstens 2014-01-01 841
> > 75a1812230ad7a Alexander Yarygin 2015-01-22 842 lap_enabled = low_address_protection_enabled(vcpu, asce);
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 843 while (min(PAGE_SIZE - offset, len) > 0) {
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 844 fragment_len = min(PAGE_SIZE - offset, len);
> > 2293897805c2fe Heiko Carstens 2014-01-01 845 ga = kvm_s390_logical_to_effective(vcpu, ga);
> > cde0dcfb5df1db David Hildenbrand 2016-05-31 846 if (mode == GACC_STORE && lap_enabled && is_low_address(ga))
> > cde0dcfb5df1db David Hildenbrand 2016-05-31 847 return trans_exc(vcpu, PGM_PROTECTION, ga, ar, mode,
> > cde0dcfb5df1db David Hildenbrand 2016-05-31 848 PROT_TYPE_LA);
> > a752598254016d Heiko Carstens 2017-06-03 849 if (psw_bits(*psw).dat) {
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 850 rc = guest_translate(vcpu, ga, &gpa, asce, mode, &prot);
> > 2293897805c2fe Heiko Carstens 2014-01-01 851 if (rc < 0)
> > 2293897805c2fe Heiko Carstens 2014-01-01 852 return rc;
> > 2293897805c2fe Heiko Carstens 2014-01-01 853 } else {
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 854 gpa = kvm_s390_real_to_abs(vcpu, ga);
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 855 if (kvm_is_error_gpa(vcpu->kvm, gpa))
> > cde0dcfb5df1db David Hildenbrand 2016-05-31 856 rc = PGM_ADDRESSING;
> > ^^^^^^^^^^^^^^^^^^^^
> >
> > "rc" set but "prot" not initialized.
>
> prot is only used in case of PGM_PROTECTION.
> Because of that, we could initialize prot to an arbitrary value, but that seems misleading and a bit ugly to me.
> Alternatively, we could introduce a PROT_NONE.
> Or we do nothing, since there is no actual problem.
> @Janosch, @Claudio, what do you think?
I agree that this is not a bug.
It does look ugly, though, and all reasonable solutions are also ugly
(each for a different reason).
another solution is to set prot to an arbitrary value only in the if
case marked above. that way prot is not arbitrarily initialized, and
there is no need to add a new PROT_NONE (which then would need to be
checked for in trans_exc)
I do not have a strong opinion, though
>
> >
> > 2293897805c2fe Heiko Carstens 2014-01-01 857 }
> > cde0dcfb5df1db David Hildenbrand 2016-05-31 858 if (rc)
> > 6ae1574c2a24ee Christian Borntraeger 2017-06-07 @859 return trans_exc(vcpu, rc, ga, ar, mode, prot);
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 860 if (gpas)
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 861 *gpas++ = gpa;
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 862 offset = 0;
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 863 ga += fragment_len;
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 864 len -= fragment_len;
> > 2293897805c2fe Heiko Carstens 2014-01-01 865 }
> > 2293897805c2fe Heiko Carstens 2014-01-01 866 return 0;
> > 2293897805c2fe Heiko Carstens 2014-01-01 867 }
> >
>
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
@ 2022-08-17 14:38 ` Claudio Imbrenda
0 siblings, 0 replies; 12+ messages in thread
From: Claudio Imbrenda @ 2022-08-17 14:38 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 5259 bytes --]
On Wed, 17 Aug 2022 12:30:11 +0200
Janis Schoetterl-Glausch <scgl@linux.ibm.com> wrote:
> On 8/15/22 09:23, Dan Carpenter wrote:
> > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> > head: 69dac8e431af26173ca0a1ebc87054e01c585bcc
> > commit: 7faa543df19bf62d4583a64d3902705747f2ad29 KVM: s390: gaccess: Refactor access address range check
> > config: s390-randconfig-m031-20220812 (https://download.01.org/0day-ci/archive/20220814/202208140141.4uzWszG4-lkp(a)intel.com/config)
> > compiler: s390-linux-gcc (GCC) 12.1.0
> >
> > If you fix the issue, kindly add following tag where applicable
> > Reported-by: kernel test robot <lkp@intel.com>
> > Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
> >
> > smatch warnings:
> > arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
> >
> > vim +/prot +859 arch/s390/kvm/gaccess.c
> >
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 831 static int guest_range_to_gpas(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar,
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 832 unsigned long *gpas, unsigned long len,
> > 92c9632119b67f David Hildenbrand 2015-11-16 833 const union asce asce, enum gacc_mode mode)
> > 2293897805c2fe Heiko Carstens 2014-01-01 834 {
> > 2293897805c2fe Heiko Carstens 2014-01-01 835 psw_t *psw = &vcpu->arch.sie_block->gpsw;
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 836 unsigned int offset = offset_in_page(ga);
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 837 unsigned int fragment_len;
> > cde0dcfb5df1db David Hildenbrand 2016-05-31 838 int lap_enabled, rc = 0;
> > 6ae1574c2a24ee Christian Borntraeger 2017-06-07 839 enum prot_type prot;
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 840 unsigned long gpa;
> > 2293897805c2fe Heiko Carstens 2014-01-01 841
> > 75a1812230ad7a Alexander Yarygin 2015-01-22 842 lap_enabled = low_address_protection_enabled(vcpu, asce);
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 843 while (min(PAGE_SIZE - offset, len) > 0) {
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 844 fragment_len = min(PAGE_SIZE - offset, len);
> > 2293897805c2fe Heiko Carstens 2014-01-01 845 ga = kvm_s390_logical_to_effective(vcpu, ga);
> > cde0dcfb5df1db David Hildenbrand 2016-05-31 846 if (mode == GACC_STORE && lap_enabled && is_low_address(ga))
> > cde0dcfb5df1db David Hildenbrand 2016-05-31 847 return trans_exc(vcpu, PGM_PROTECTION, ga, ar, mode,
> > cde0dcfb5df1db David Hildenbrand 2016-05-31 848 PROT_TYPE_LA);
> > a752598254016d Heiko Carstens 2017-06-03 849 if (psw_bits(*psw).dat) {
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 850 rc = guest_translate(vcpu, ga, &gpa, asce, mode, &prot);
> > 2293897805c2fe Heiko Carstens 2014-01-01 851 if (rc < 0)
> > 2293897805c2fe Heiko Carstens 2014-01-01 852 return rc;
> > 2293897805c2fe Heiko Carstens 2014-01-01 853 } else {
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 854 gpa = kvm_s390_real_to_abs(vcpu, ga);
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 855 if (kvm_is_error_gpa(vcpu->kvm, gpa))
> > cde0dcfb5df1db David Hildenbrand 2016-05-31 856 rc = PGM_ADDRESSING;
> > ^^^^^^^^^^^^^^^^^^^^
> >
> > "rc" set but "prot" not initialized.
>
> prot is only used in case of PGM_PROTECTION.
> Because of that, we could initialize prot to an arbitrary value, but that seems misleading and a bit ugly to me.
> Alternatively, we could introduce a PROT_NONE.
> Or we do nothing, since there is no actual problem.
> @Janosch, @Claudio, what do you think?
I agree that this is not a bug.
It does look ugly, though, and all reasonable solutions are also ugly
(each for a different reason).
another solution is to set prot to an arbitrary value only in the if
case marked above. that way prot is not arbitrarily initialized, and
there is no need to add a new PROT_NONE (which then would need to be
checked for in trans_exc)
I do not have a strong opinion, though
>
> >
> > 2293897805c2fe Heiko Carstens 2014-01-01 857 }
> > cde0dcfb5df1db David Hildenbrand 2016-05-31 858 if (rc)
> > 6ae1574c2a24ee Christian Borntraeger 2017-06-07 @859 return trans_exc(vcpu, rc, ga, ar, mode, prot);
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 860 if (gpas)
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 861 *gpas++ = gpa;
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 862 offset = 0;
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 863 ga += fragment_len;
> > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 864 len -= fragment_len;
> > 2293897805c2fe Heiko Carstens 2014-01-01 865 }
> > 2293897805c2fe Heiko Carstens 2014-01-01 866 return 0;
> > 2293897805c2fe Heiko Carstens 2014-01-01 867 }
> >
>
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
2022-08-17 14:38 ` Claudio Imbrenda
@ 2022-08-18 7:45 ` Janosch Frank
-1 siblings, 0 replies; 12+ messages in thread
From: Janosch Frank @ 2022-08-18 7:45 UTC (permalink / raw)
To: Claudio Imbrenda, Janis Schoetterl-Glausch
Cc: Dan Carpenter, kbuild, lkp, kbuild-all, linux-kernel
On 8/17/22 16:38, Claudio Imbrenda wrote:
> On Wed, 17 Aug 2022 12:30:11 +0200
> Janis Schoetterl-Glausch <scgl@linux.ibm.com> wrote:
>
>> On 8/15/22 09:23, Dan Carpenter wrote:
>>> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>>> head: 69dac8e431af26173ca0a1ebc87054e01c585bcc
>>> commit: 7faa543df19bf62d4583a64d3902705747f2ad29 KVM: s390: gaccess: Refactor access address range check
>>> config: s390-randconfig-m031-20220812 (https://download.01.org/0day-ci/archive/20220814/202208140141.4uzWszG4-lkp@intel.com/config)
>>> compiler: s390-linux-gcc (GCC) 12.1.0
>>>
>>> If you fix the issue, kindly add following tag where applicable
>>> Reported-by: kernel test robot <lkp@intel.com>
>>> Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
>>>
>>> smatch warnings:
>>> arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
>>>
>>> vim +/prot +859 arch/s390/kvm/gaccess.c
>>>
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 831 static int guest_range_to_gpas(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar,
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 832 unsigned long *gpas, unsigned long len,
>>> 92c9632119b67f David Hildenbrand 2015-11-16 833 const union asce asce, enum gacc_mode mode)
>>> 2293897805c2fe Heiko Carstens 2014-01-01 834 {
>>> 2293897805c2fe Heiko Carstens 2014-01-01 835 psw_t *psw = &vcpu->arch.sie_block->gpsw;
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 836 unsigned int offset = offset_in_page(ga);
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 837 unsigned int fragment_len;
>>> cde0dcfb5df1db David Hildenbrand 2016-05-31 838 int lap_enabled, rc = 0;
>>> 6ae1574c2a24ee Christian Borntraeger 2017-06-07 839 enum prot_type prot;
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 840 unsigned long gpa;
>>> 2293897805c2fe Heiko Carstens 2014-01-01 841
>>> 75a1812230ad7a Alexander Yarygin 2015-01-22 842 lap_enabled = low_address_protection_enabled(vcpu, asce);
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 843 while (min(PAGE_SIZE - offset, len) > 0) {
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 844 fragment_len = min(PAGE_SIZE - offset, len);
>>> 2293897805c2fe Heiko Carstens 2014-01-01 845 ga = kvm_s390_logical_to_effective(vcpu, ga);
>>> cde0dcfb5df1db David Hildenbrand 2016-05-31 846 if (mode == GACC_STORE && lap_enabled && is_low_address(ga))
>>> cde0dcfb5df1db David Hildenbrand 2016-05-31 847 return trans_exc(vcpu, PGM_PROTECTION, ga, ar, mode,
>>> cde0dcfb5df1db David Hildenbrand 2016-05-31 848 PROT_TYPE_LA);
>>> a752598254016d Heiko Carstens 2017-06-03 849 if (psw_bits(*psw).dat) {
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 850 rc = guest_translate(vcpu, ga, &gpa, asce, mode, &prot);
>>> 2293897805c2fe Heiko Carstens 2014-01-01 851 if (rc < 0)
>>> 2293897805c2fe Heiko Carstens 2014-01-01 852 return rc;
>>> 2293897805c2fe Heiko Carstens 2014-01-01 853 } else {
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 854 gpa = kvm_s390_real_to_abs(vcpu, ga);
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 855 if (kvm_is_error_gpa(vcpu->kvm, gpa))
>>> cde0dcfb5df1db David Hildenbrand 2016-05-31 856 rc = PGM_ADDRESSING;
>>> ^^^^^^^^^^^^^^^^^^^^
>>>
>>> "rc" set but "prot" not initialized.
>>
>> prot is only used in case of PGM_PROTECTION.
>> Because of that, we could initialize prot to an arbitrary value, but that seems misleading and a bit ugly to me.
>> Alternatively, we could introduce a PROT_NONE.
>> Or we do nothing, since there is no actual problem.
>> @Janosch, @Claudio, what do you think?
>
> I agree that this is not a bug.
>
> It does look ugly, though, and all reasonable solutions are also ugly
> (each for a different reason).
>
> another solution is to set prot to an arbitrary value only in the if
> case marked above. that way prot is not arbitrarily initialized, and
> there is no need to add a new PROT_NONE (which then would need to be
> checked for in trans_exc)
>
> I do not have a strong opinion, though
We either have a prot value or terminate is set, right?
So I'd opt to add a PROT_NONE (with a comment that it's only used for
init). If the statement above is true we can then also add a WARN if no
valid PROT_* is set in case if terminate isn't true and a PGM_PROTECTION
has been specified.
>
>>
>>>
>>> 2293897805c2fe Heiko Carstens 2014-01-01 857 }
>>> cde0dcfb5df1db David Hildenbrand 2016-05-31 858 if (rc)
>>> 6ae1574c2a24ee Christian Borntraeger 2017-06-07 @859 return trans_exc(vcpu, rc, ga, ar, mode, prot);
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 860 if (gpas)
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 861 *gpas++ = gpa;
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 862 offset = 0;
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 863 ga += fragment_len;
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 864 len -= fragment_len;
>>> 2293897805c2fe Heiko Carstens 2014-01-01 865 }
>>> 2293897805c2fe Heiko Carstens 2014-01-01 866 return 0;
>>> 2293897805c2fe Heiko Carstens 2014-01-01 867 }
>>>
>>
>
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
@ 2022-08-18 7:45 ` Janosch Frank
0 siblings, 0 replies; 12+ messages in thread
From: Janosch Frank @ 2022-08-18 7:45 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 5643 bytes --]
On 8/17/22 16:38, Claudio Imbrenda wrote:
> On Wed, 17 Aug 2022 12:30:11 +0200
> Janis Schoetterl-Glausch <scgl@linux.ibm.com> wrote:
>
>> On 8/15/22 09:23, Dan Carpenter wrote:
>>> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>>> head: 69dac8e431af26173ca0a1ebc87054e01c585bcc
>>> commit: 7faa543df19bf62d4583a64d3902705747f2ad29 KVM: s390: gaccess: Refactor access address range check
>>> config: s390-randconfig-m031-20220812 (https://download.01.org/0day-ci/archive/20220814/202208140141.4uzWszG4-lkp(a)intel.com/config)
>>> compiler: s390-linux-gcc (GCC) 12.1.0
>>>
>>> If you fix the issue, kindly add following tag where applicable
>>> Reported-by: kernel test robot <lkp@intel.com>
>>> Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
>>>
>>> smatch warnings:
>>> arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
>>>
>>> vim +/prot +859 arch/s390/kvm/gaccess.c
>>>
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 831 static int guest_range_to_gpas(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar,
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 832 unsigned long *gpas, unsigned long len,
>>> 92c9632119b67f David Hildenbrand 2015-11-16 833 const union asce asce, enum gacc_mode mode)
>>> 2293897805c2fe Heiko Carstens 2014-01-01 834 {
>>> 2293897805c2fe Heiko Carstens 2014-01-01 835 psw_t *psw = &vcpu->arch.sie_block->gpsw;
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 836 unsigned int offset = offset_in_page(ga);
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 837 unsigned int fragment_len;
>>> cde0dcfb5df1db David Hildenbrand 2016-05-31 838 int lap_enabled, rc = 0;
>>> 6ae1574c2a24ee Christian Borntraeger 2017-06-07 839 enum prot_type prot;
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 840 unsigned long gpa;
>>> 2293897805c2fe Heiko Carstens 2014-01-01 841
>>> 75a1812230ad7a Alexander Yarygin 2015-01-22 842 lap_enabled = low_address_protection_enabled(vcpu, asce);
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 843 while (min(PAGE_SIZE - offset, len) > 0) {
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 844 fragment_len = min(PAGE_SIZE - offset, len);
>>> 2293897805c2fe Heiko Carstens 2014-01-01 845 ga = kvm_s390_logical_to_effective(vcpu, ga);
>>> cde0dcfb5df1db David Hildenbrand 2016-05-31 846 if (mode == GACC_STORE && lap_enabled && is_low_address(ga))
>>> cde0dcfb5df1db David Hildenbrand 2016-05-31 847 return trans_exc(vcpu, PGM_PROTECTION, ga, ar, mode,
>>> cde0dcfb5df1db David Hildenbrand 2016-05-31 848 PROT_TYPE_LA);
>>> a752598254016d Heiko Carstens 2017-06-03 849 if (psw_bits(*psw).dat) {
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 850 rc = guest_translate(vcpu, ga, &gpa, asce, mode, &prot);
>>> 2293897805c2fe Heiko Carstens 2014-01-01 851 if (rc < 0)
>>> 2293897805c2fe Heiko Carstens 2014-01-01 852 return rc;
>>> 2293897805c2fe Heiko Carstens 2014-01-01 853 } else {
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 854 gpa = kvm_s390_real_to_abs(vcpu, ga);
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 855 if (kvm_is_error_gpa(vcpu->kvm, gpa))
>>> cde0dcfb5df1db David Hildenbrand 2016-05-31 856 rc = PGM_ADDRESSING;
>>> ^^^^^^^^^^^^^^^^^^^^
>>>
>>> "rc" set but "prot" not initialized.
>>
>> prot is only used in case of PGM_PROTECTION.
>> Because of that, we could initialize prot to an arbitrary value, but that seems misleading and a bit ugly to me.
>> Alternatively, we could introduce a PROT_NONE.
>> Or we do nothing, since there is no actual problem.
>> @Janosch, @Claudio, what do you think?
>
> I agree that this is not a bug.
>
> It does look ugly, though, and all reasonable solutions are also ugly
> (each for a different reason).
>
> another solution is to set prot to an arbitrary value only in the if
> case marked above. that way prot is not arbitrarily initialized, and
> there is no need to add a new PROT_NONE (which then would need to be
> checked for in trans_exc)
>
> I do not have a strong opinion, though
We either have a prot value or terminate is set, right?
So I'd opt to add a PROT_NONE (with a comment that it's only used for
init). If the statement above is true we can then also add a WARN if no
valid PROT_* is set in case if terminate isn't true and a PGM_PROTECTION
has been specified.
>
>>
>>>
>>> 2293897805c2fe Heiko Carstens 2014-01-01 857 }
>>> cde0dcfb5df1db David Hildenbrand 2016-05-31 858 if (rc)
>>> 6ae1574c2a24ee Christian Borntraeger 2017-06-07 @859 return trans_exc(vcpu, rc, ga, ar, mode, prot);
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 860 if (gpas)
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 861 *gpas++ = gpa;
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 862 offset = 0;
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 863 ga += fragment_len;
>>> 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 864 len -= fragment_len;
>>> 2293897805c2fe Heiko Carstens 2014-01-01 865 }
>>> 2293897805c2fe Heiko Carstens 2014-01-01 866 return 0;
>>> 2293897805c2fe Heiko Carstens 2014-01-01 867 }
>>>
>>
>
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
2022-08-18 7:45 ` Janosch Frank
@ 2022-08-18 13:14 ` Janis Schoetterl-Glausch
-1 siblings, 0 replies; 12+ messages in thread
From: Janis Schoetterl-Glausch @ 2022-08-18 13:14 UTC (permalink / raw)
To: Janosch Frank, Claudio Imbrenda
Cc: Dan Carpenter, kbuild, lkp, kbuild-all, linux-kernel
On Thu, 2022-08-18 at 09:45 +0200, Janosch Frank wrote:
> On 8/17/22 16:38, Claudio Imbrenda wrote:
> > On Wed, 17 Aug 2022 12:30:11 +0200
> > Janis Schoetterl-Glausch <scgl@linux.ibm.com> wrote:
> >
> > > On 8/15/22 09:23, Dan Carpenter wrote:
> > > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> > > > head: 69dac8e431af26173ca0a1ebc87054e01c585bcc
> > > > commit: 7faa543df19bf62d4583a64d3902705747f2ad29 KVM: s390: gaccess: Refactor access address range check
> > > > config: s390-randconfig-m031-20220812 (https://download.01.org/0day-ci/archive/20220814/202208140141.4uzWszG4-lkp@intel.com/config)
> > > > compiler: s390-linux-gcc (GCC) 12.1.0
> > > >
> > > > If you fix the issue, kindly add following tag where applicable
> > > > Reported-by: kernel test robot <lkp@intel.com>
> > > > Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
> > > >
> > > > smatch warnings:
> > > > arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
> > > >
> > > > vim +/prot +859 arch/s390/kvm/gaccess.c
> > > >
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 831 static int guest_range_to_gpas(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar,
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 832 unsigned long *gpas, unsigned long len,
> > > > 92c9632119b67f David Hildenbrand 2015-11-16 833 const union asce asce, enum gacc_mode mode)
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 834 {
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 835 psw_t *psw = &vcpu->arch.sie_block->gpsw;
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 836 unsigned int offset = offset_in_page(ga);
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 837 unsigned int fragment_len;
> > > > cde0dcfb5df1db David Hildenbrand 2016-05-31 838 int lap_enabled, rc = 0;
> > > > 6ae1574c2a24ee Christian Borntraeger 2017-06-07 839 enum prot_type prot;
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 840 unsigned long gpa;
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 841
> > > > 75a1812230ad7a Alexander Yarygin 2015-01-22 842 lap_enabled = low_address_protection_enabled(vcpu, asce);
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 843 while (min(PAGE_SIZE - offset, len) > 0) {
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 844 fragment_len = min(PAGE_SIZE - offset, len);
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 845 ga = kvm_s390_logical_to_effective(vcpu, ga);
> > > > cde0dcfb5df1db David Hildenbrand 2016-05-31 846 if (mode == GACC_STORE && lap_enabled && is_low_address(ga))
> > > > cde0dcfb5df1db David Hildenbrand 2016-05-31 847 return trans_exc(vcpu, PGM_PROTECTION, ga, ar, mode,
> > > > cde0dcfb5df1db David Hildenbrand 2016-05-31 848 PROT_TYPE_LA);
> > > > a752598254016d Heiko Carstens 2017-06-03 849 if (psw_bits(*psw).dat) {
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 850 rc = guest_translate(vcpu, ga, &gpa, asce, mode, &prot);
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 851 if (rc < 0)
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 852 return rc;
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 853 } else {
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 854 gpa = kvm_s390_real_to_abs(vcpu, ga);
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 855 if (kvm_is_error_gpa(vcpu->kvm, gpa))
> > > > cde0dcfb5df1db David Hildenbrand 2016-05-31 856 rc = PGM_ADDRESSING;
> > > > ^^^^^^^^^^^^^^^^^^^^
> > > >
> > > > "rc" set but "prot" not initialized.
> > >
> > > prot is only used in case of PGM_PROTECTION.
> > > Because of that, we could initialize prot to an arbitrary value, but that seems misleading and a bit ugly to me.
> > > Alternatively, we could introduce a PROT_NONE.
> > > Or we do nothing, since there is no actual problem.
> > > @Janosch, @Claudio, what do you think?
> >
> > I agree that this is not a bug.
> >
> > It does look ugly, though, and all reasonable solutions are also ugly
> > (each for a different reason).
> >
> > another solution is to set prot to an arbitrary value only in the if
> > case marked above. that way prot is not arbitrarily initialized, and
> > there is no need to add a new PROT_NONE (which then would need to be
> > checked for in trans_exc)
> >
> > I do not have a strong opinion, though
>
> We either have a prot value or terminate is set, right?
It's independent of termination, we will have a valid value for prot if
we terminate. And I guess it still would be undefined behavior even if
the value were invalid and we terminate.
>
> So I'd opt to add a PROT_NONE (with a comment that it's only used for
> init). If the statement above is true we can then also add a WARN if no
> valid PROT_* is set in case if terminate isn't true and a PGM_PROTECTION
> has been specified.
I think what I'll do is introduce PROT_NONE, but not initialize prot
with it, but set prot to NONE whenever a code other than PGM_PROTECTION
is set.
>
>
> >
> > >
> > > >
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 857 }
> > > > cde0dcfb5df1db David Hildenbrand 2016-05-31 858 if (rc)
> > > > 6ae1574c2a24ee Christian Borntraeger 2017-06-07 @859 return trans_exc(vcpu, rc, ga, ar, mode, prot);
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 860 if (gpas)
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 861 *gpas++ = gpa;
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 862 offset = 0;
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 863 ga += fragment_len;
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 864 len -= fragment_len;
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 865 }
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 866 return 0;
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 867 }
> > > >
> > >
> >
>
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
@ 2022-08-18 13:14 ` Janis Schoetterl-Glausch
0 siblings, 0 replies; 12+ messages in thread
From: Janis Schoetterl-Glausch @ 2022-08-18 13:14 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 6365 bytes --]
On Thu, 2022-08-18 at 09:45 +0200, Janosch Frank wrote:
> On 8/17/22 16:38, Claudio Imbrenda wrote:
> > On Wed, 17 Aug 2022 12:30:11 +0200
> > Janis Schoetterl-Glausch <scgl@linux.ibm.com> wrote:
> >
> > > On 8/15/22 09:23, Dan Carpenter wrote:
> > > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> > > > head: 69dac8e431af26173ca0a1ebc87054e01c585bcc
> > > > commit: 7faa543df19bf62d4583a64d3902705747f2ad29 KVM: s390: gaccess: Refactor access address range check
> > > > config: s390-randconfig-m031-20220812 (https://download.01.org/0day-ci/archive/20220814/202208140141.4uzWszG4-lkp(a)intel.com/config)
> > > > compiler: s390-linux-gcc (GCC) 12.1.0
> > > >
> > > > If you fix the issue, kindly add following tag where applicable
> > > > Reported-by: kernel test robot <lkp@intel.com>
> > > > Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
> > > >
> > > > smatch warnings:
> > > > arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
> > > >
> > > > vim +/prot +859 arch/s390/kvm/gaccess.c
> > > >
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 831 static int guest_range_to_gpas(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar,
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 832 unsigned long *gpas, unsigned long len,
> > > > 92c9632119b67f David Hildenbrand 2015-11-16 833 const union asce asce, enum gacc_mode mode)
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 834 {
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 835 psw_t *psw = &vcpu->arch.sie_block->gpsw;
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 836 unsigned int offset = offset_in_page(ga);
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 837 unsigned int fragment_len;
> > > > cde0dcfb5df1db David Hildenbrand 2016-05-31 838 int lap_enabled, rc = 0;
> > > > 6ae1574c2a24ee Christian Borntraeger 2017-06-07 839 enum prot_type prot;
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 840 unsigned long gpa;
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 841
> > > > 75a1812230ad7a Alexander Yarygin 2015-01-22 842 lap_enabled = low_address_protection_enabled(vcpu, asce);
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 843 while (min(PAGE_SIZE - offset, len) > 0) {
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 844 fragment_len = min(PAGE_SIZE - offset, len);
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 845 ga = kvm_s390_logical_to_effective(vcpu, ga);
> > > > cde0dcfb5df1db David Hildenbrand 2016-05-31 846 if (mode == GACC_STORE && lap_enabled && is_low_address(ga))
> > > > cde0dcfb5df1db David Hildenbrand 2016-05-31 847 return trans_exc(vcpu, PGM_PROTECTION, ga, ar, mode,
> > > > cde0dcfb5df1db David Hildenbrand 2016-05-31 848 PROT_TYPE_LA);
> > > > a752598254016d Heiko Carstens 2017-06-03 849 if (psw_bits(*psw).dat) {
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 850 rc = guest_translate(vcpu, ga, &gpa, asce, mode, &prot);
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 851 if (rc < 0)
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 852 return rc;
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 853 } else {
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 854 gpa = kvm_s390_real_to_abs(vcpu, ga);
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 855 if (kvm_is_error_gpa(vcpu->kvm, gpa))
> > > > cde0dcfb5df1db David Hildenbrand 2016-05-31 856 rc = PGM_ADDRESSING;
> > > > ^^^^^^^^^^^^^^^^^^^^
> > > >
> > > > "rc" set but "prot" not initialized.
> > >
> > > prot is only used in case of PGM_PROTECTION.
> > > Because of that, we could initialize prot to an arbitrary value, but that seems misleading and a bit ugly to me.
> > > Alternatively, we could introduce a PROT_NONE.
> > > Or we do nothing, since there is no actual problem.
> > > @Janosch, @Claudio, what do you think?
> >
> > I agree that this is not a bug.
> >
> > It does look ugly, though, and all reasonable solutions are also ugly
> > (each for a different reason).
> >
> > another solution is to set prot to an arbitrary value only in the if
> > case marked above. that way prot is not arbitrarily initialized, and
> > there is no need to add a new PROT_NONE (which then would need to be
> > checked for in trans_exc)
> >
> > I do not have a strong opinion, though
>
> We either have a prot value or terminate is set, right?
It's independent of termination, we will have a valid value for prot if
we terminate. And I guess it still would be undefined behavior even if
the value were invalid and we terminate.
>
> So I'd opt to add a PROT_NONE (with a comment that it's only used for
> init). If the statement above is true we can then also add a WARN if no
> valid PROT_* is set in case if terminate isn't true and a PGM_PROTECTION
> has been specified.
I think what I'll do is introduce PROT_NONE, but not initialize prot
with it, but set prot to NONE whenever a code other than PGM_PROTECTION
is set.
>
>
> >
> > >
> > > >
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 857 }
> > > > cde0dcfb5df1db David Hildenbrand 2016-05-31 858 if (rc)
> > > > 6ae1574c2a24ee Christian Borntraeger 2017-06-07 @859 return trans_exc(vcpu, rc, ga, ar, mode, prot);
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 860 if (gpas)
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 861 *gpas++ = gpa;
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 862 offset = 0;
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 863 ga += fragment_len;
> > > > 7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 864 len -= fragment_len;
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 865 }
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 866 return 0;
> > > > 2293897805c2fe Heiko Carstens 2014-01-01 867 }
> > > >
> > >
> >
>
^ permalink raw reply [flat|nested] 12+ messages in thread
* arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
@ 2022-08-14 14:13 kernel test robot
0 siblings, 0 replies; 12+ messages in thread
From: kernel test robot @ 2022-08-14 14:13 UTC (permalink / raw)
To: kbuild
[-- Attachment #1: Type: text/plain, Size: 8173 bytes --]
BCC: lkp(a)intel.com
CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: "Janis Schoetterl-Glausch" <scgl@linux.ibm.com>
CC: Janosch Frank <frankja@linux.ibm.com>
CC: Claudio Imbrenda <imbrenda@linux.ibm.com>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: aea23e7c464bfdec04b52cf61edb62030e9e0d0a
commit: 7faa543df19bf62d4583a64d3902705747f2ad29 KVM: s390: gaccess: Refactor access address range check
date: 8 months ago
:::::: branch date: 14 hours ago
:::::: commit date: 8 months ago
config: s390-randconfig-m041-20220807
compiler: s390-linux-gcc (GCC) 12.1.0
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings:
arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot'.
vim +/prot +859 arch/s390/kvm/gaccess.c
2293897805c2fe Heiko Carstens 2014-01-01 796
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 797 /**
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 798 * guest_range_to_gpas() - Calculate guest physical addresses of page fragments
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 799 * covering a logical range
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 800 * @vcpu: virtual cpu
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 801 * @ga: guest address, start of range
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 802 * @ar: access register
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 803 * @gpas: output argument, may be NULL
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 804 * @len: length of range in bytes
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 805 * @asce: address-space-control element to use for translation
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 806 * @mode: access mode
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 807 *
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 808 * Translate a logical range to a series of guest absolute addresses,
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 809 * such that the concatenation of page fragments starting at each gpa make up
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 810 * the whole range.
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 811 * The translation is performed as if done by the cpu for the given @asce, @ar,
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 812 * @mode and state of the @vcpu.
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 813 * If the translation causes an exception, its program interruption code is
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 814 * returned and the &struct kvm_s390_pgm_info pgm member of @vcpu is modified
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 815 * such that a subsequent call to kvm_s390_inject_prog_vcpu() will inject
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 816 * a correct exception into the guest.
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 817 * The resulting gpas are stored into @gpas, unless it is NULL.
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 818 *
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 819 * Note: All fragments except the first one start at the beginning of a page.
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 820 * When deriving the boundaries of a fragment from a gpa, all but the last
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 821 * fragment end at the end of the page.
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 822 *
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 823 * Return:
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 824 * * 0 - success
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 825 * * <0 - translation could not be performed, for example if guest
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 826 * memory could not be accessed
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 827 * * >0 - an access exception occurred. In this case the returned value
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 828 * is the program interruption code and the contents of pgm may
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 829 * be used to inject an exception into the guest.
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 830 */
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 831 static int guest_range_to_gpas(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar,
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 832 unsigned long *gpas, unsigned long len,
92c9632119b67f David Hildenbrand 2015-11-16 833 const union asce asce, enum gacc_mode mode)
2293897805c2fe Heiko Carstens 2014-01-01 834 {
2293897805c2fe Heiko Carstens 2014-01-01 835 psw_t *psw = &vcpu->arch.sie_block->gpsw;
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 836 unsigned int offset = offset_in_page(ga);
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 837 unsigned int fragment_len;
cde0dcfb5df1db David Hildenbrand 2016-05-31 838 int lap_enabled, rc = 0;
6ae1574c2a24ee Christian Borntraeger 2017-06-07 839 enum prot_type prot;
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 840 unsigned long gpa;
2293897805c2fe Heiko Carstens 2014-01-01 841
75a1812230ad7a Alexander Yarygin 2015-01-22 842 lap_enabled = low_address_protection_enabled(vcpu, asce);
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 843 while (min(PAGE_SIZE - offset, len) > 0) {
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 844 fragment_len = min(PAGE_SIZE - offset, len);
2293897805c2fe Heiko Carstens 2014-01-01 845 ga = kvm_s390_logical_to_effective(vcpu, ga);
cde0dcfb5df1db David Hildenbrand 2016-05-31 846 if (mode == GACC_STORE && lap_enabled && is_low_address(ga))
cde0dcfb5df1db David Hildenbrand 2016-05-31 847 return trans_exc(vcpu, PGM_PROTECTION, ga, ar, mode,
cde0dcfb5df1db David Hildenbrand 2016-05-31 848 PROT_TYPE_LA);
a752598254016d Heiko Carstens 2017-06-03 849 if (psw_bits(*psw).dat) {
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 850 rc = guest_translate(vcpu, ga, &gpa, asce, mode, &prot);
2293897805c2fe Heiko Carstens 2014-01-01 851 if (rc < 0)
2293897805c2fe Heiko Carstens 2014-01-01 852 return rc;
2293897805c2fe Heiko Carstens 2014-01-01 853 } else {
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 854 gpa = kvm_s390_real_to_abs(vcpu, ga);
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 855 if (kvm_is_error_gpa(vcpu->kvm, gpa))
cde0dcfb5df1db David Hildenbrand 2016-05-31 856 rc = PGM_ADDRESSING;
2293897805c2fe Heiko Carstens 2014-01-01 857 }
cde0dcfb5df1db David Hildenbrand 2016-05-31 858 if (rc)
6ae1574c2a24ee Christian Borntraeger 2017-06-07 @859 return trans_exc(vcpu, rc, ga, ar, mode, prot);
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 860 if (gpas)
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 861 *gpas++ = gpa;
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 862 offset = 0;
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 863 ga += fragment_len;
7faa543df19bf6 Janis Schoetterl-Glausch 2021-11-26 864 len -= fragment_len;
2293897805c2fe Heiko Carstens 2014-01-01 865 }
2293897805c2fe Heiko Carstens 2014-01-01 866 return 0;
2293897805c2fe Heiko Carstens 2014-01-01 867 }
2293897805c2fe Heiko Carstens 2014-01-01 868
:::::: The code at line 859 was first introduced by commit
:::::: 6ae1574c2a24eec5efa8bac305a8f87c839acc64 KVM: s390: implement instruction execution protection for emulated ifetch
:::::: TO: Christian Borntraeger <borntraeger@de.ibm.com>
:::::: CC: Christian Borntraeger <borntraeger@de.ibm.com>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
[-- Attachment #2: config.ksh --]
[-- Type: text/plain, Size: 46007 bytes --]
#
# Automatically generated file; DO NOT EDIT.
# Linux/s390 5.16.0-rc2 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="s390-linux-gcc (GCC) 12.1.0"
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=120100
CONFIG_CLANG_VERSION=0
CONFIG_AS_IS_GNU=y
CONFIG_AS_VERSION=23800
CONFIG_LD_IS_BFD=y
CONFIG_LD_VERSION=23800
CONFIG_LLD_VERSION=0
CONFIG_CC_HAS_ASM_GOTO=y
CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y
#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
# CONFIG_WERROR is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_BUILD_SALT=""
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_HAVE_KERNEL_ZSTD=y
CONFIG_HAVE_KERNEL_UNCOMPRESSED=y
# CONFIG_KERNEL_GZIP is not set
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
CONFIG_KERNEL_LZO=y
# CONFIG_KERNEL_LZ4 is not set
# CONFIG_KERNEL_ZSTD is not set
# CONFIG_KERNEL_UNCOMPRESSED is not set
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
# CONFIG_POSIX_MQUEUE is not set
# CONFIG_WATCH_QUEUE is not set
# CONFIG_CROSS_MEMORY_ATTACH is not set
# CONFIG_USELIB is not set
# CONFIG_AUDIT is not set
CONFIG_HAVE_ARCH_AUDITSYSCALL=y
#
# IRQ subsystem
#
CONFIG_IRQ_DOMAIN=y
CONFIG_SPARSE_IRQ=y
# CONFIG_GENERIC_IRQ_DEBUGFS is not set
# end of IRQ subsystem
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
CONFIG_NO_HZ=y
# CONFIG_HIGH_RES_TIMERS is not set
# end of Timers subsystem
CONFIG_BPF=y
CONFIG_HAVE_EBPF_JIT=y
CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y
#
# BPF subsystem
#
# CONFIG_BPF_SYSCALL is not set
# end of BPF subsystem
CONFIG_PREEMPT_VOLUNTARY_BUILD=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y
# CONFIG_SCHED_CORE is not set
#
# CPU/Task time and stats accounting
#
CONFIG_VIRT_CPU_ACCOUNTING=y
CONFIG_VIRT_CPU_ACCOUNTING_NATIVE=y
# CONFIG_PSI is not set
# end of CPU/Task time and stats accounting
CONFIG_CPU_ISOLATION=y
#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
CONFIG_RCU_EXPERT=y
CONFIG_SRCU=y
CONFIG_TREE_SRCU=y
CONFIG_TASKS_RCU_GENERIC=y
CONFIG_TASKS_RCU=y
CONFIG_TASKS_RUDE_RCU=y
CONFIG_TASKS_TRACE_RCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_NEED_SEGCBLIST=y
CONFIG_RCU_FANOUT=64
CONFIG_RCU_FANOUT_LEAF=16
# CONFIG_RCU_FAST_NO_HZ is not set
CONFIG_RCU_NOCB_CPU=y
# CONFIG_TASKS_TRACE_RCU_READ_MB is not set
# end of RCU Subsystem
# CONFIG_IKCONFIG is not set
# CONFIG_IKHEADERS is not set
#
# Scheduler features
#
# end of Scheduler features
CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
CONFIG_CC_HAS_INT128=y
CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough=5"
CONFIG_CGROUPS=y
# CONFIG_MEMCG is not set
CONFIG_CGROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_CFS_BANDWIDTH=y
# CONFIG_RT_GROUP_SCHED is not set
# CONFIG_CGROUP_PIDS is not set
# CONFIG_CGROUP_RDMA is not set
CONFIG_CGROUP_FREEZER=y
# CONFIG_CGROUP_HUGETLB is not set
# CONFIG_CPUSETS is not set
# CONFIG_CGROUP_DEVICE is not set
# CONFIG_CGROUP_CPUACCT is not set
# CONFIG_CGROUP_MISC is not set
CONFIG_CGROUP_DEBUG=y
CONFIG_SOCK_CGROUP_DATA=y
CONFIG_CHECKPOINT_RESTORE=y
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
CONFIG_RELAY=y
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_BOOT_CONFIG is not set
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_EXPERT=y
# CONFIG_MULTIUSER is not set
CONFIG_SGETMASK_SYSCALL=y
CONFIG_SYSFS_SYSCALL=y
# CONFIG_FHANDLE is not set
# CONFIG_POSIX_TIMERS is not set
# CONFIG_PRINTK is not set
CONFIG_BUG=y
CONFIG_ELF_CORE=y
# CONFIG_BASE_FULL is not set
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_HAVE_FUTEX_CMPXCHG=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_IO_URING=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_MEMBARRIER=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_BASE_RELATIVE=y
# CONFIG_USERFAULTFD is not set
CONFIG_KCMP=y
CONFIG_RSEQ=y
# CONFIG_DEBUG_RSEQ is not set
CONFIG_EMBEDDED=y
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_PC104=y
#
# Kernel Performance Events And Counters
#
# CONFIG_PERF_EVENTS is not set
# end of Kernel Performance Events And Counters
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
# CONFIG_COMPAT_BRK is not set
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLOB is not set
# CONFIG_SLAB_MERGE_DEFAULT is not set
CONFIG_SLAB_FREELIST_RANDOM=y
CONFIG_SLAB_FREELIST_HARDENED=y
# CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set
# CONFIG_SLUB_CPU_PARTIAL is not set
# CONFIG_PROFILING is not set
CONFIG_TRACEPOINTS=y
# end of General setup
CONFIG_MMU=y
CONFIG_CPU_BIG_ENDIAN=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_PGSTE=y
CONFIG_AUDIT_ARCH=y
CONFIG_NO_IOPORT_MAP=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_S390=y
CONFIG_SCHED_OMIT_FRAME_POINTER=y
CONFIG_PGTABLE_LEVELS=5
CONFIG_HAVE_LIVEPATCH=y
#
# Processor type and features
#
CONFIG_HAVE_MARCH_Z900_FEATURES=y
CONFIG_HAVE_MARCH_Z990_FEATURES=y
CONFIG_HAVE_MARCH_Z9_109_FEATURES=y
CONFIG_HAVE_MARCH_Z10_FEATURES=y
CONFIG_HAVE_MARCH_Z196_FEATURES=y
# CONFIG_MARCH_Z900 is not set
# CONFIG_MARCH_Z990 is not set
# CONFIG_MARCH_Z9_109 is not set
# CONFIG_MARCH_Z10 is not set
CONFIG_MARCH_Z196=y
# CONFIG_MARCH_ZEC12 is not set
# CONFIG_MARCH_Z13 is not set
# CONFIG_MARCH_Z14 is not set
# CONFIG_MARCH_Z15 is not set
CONFIG_MARCH_Z196_TUNE=y
CONFIG_TUNE_DEFAULT=y
# CONFIG_TUNE_Z900 is not set
# CONFIG_TUNE_Z990 is not set
# CONFIG_TUNE_Z9_109 is not set
# CONFIG_TUNE_Z10 is not set
# CONFIG_TUNE_Z196 is not set
# CONFIG_TUNE_ZEC12 is not set
# CONFIG_TUNE_Z13 is not set
# CONFIG_TUNE_Z14 is not set
# CONFIG_TUNE_Z15 is not set
CONFIG_64BIT=y
CONFIG_COMMAND_LINE_SIZE=4096
CONFIG_SMP=y
CONFIG_NR_CPUS=64
CONFIG_HOTPLUG_CPU=y
# CONFIG_NUMA is not set
CONFIG_SCHED_SMT=y
CONFIG_SCHED_MC=y
CONFIG_SCHED_BOOK=y
CONFIG_SCHED_DRAWER=y
CONFIG_SCHED_TOPOLOGY=y
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
CONFIG_KEXEC=y
# CONFIG_KEXEC_FILE is not set
# CONFIG_ARCH_RANDOM is not set
# CONFIG_KERNEL_NOBP is not set
# CONFIG_EXPOLINE is not set
CONFIG_RELOCATABLE=y
# CONFIG_RANDOMIZE_BASE is not set
# end of Processor type and features
#
# Memory setup
#
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_MAX_PHYSMEM_BITS=46
CONFIG_PACK_STACK=y
# end of Memory setup
#
# I/O subsystem
#
CONFIG_QDIO=y
CONFIG_CHSC_SCH=y
CONFIG_SCM_BUS=y
CONFIG_EADM_SCH=y
CONFIG_VFIO_CCW=y
# end of I/O subsystem
#
# Dump support
#
CONFIG_CRASH_DUMP=y
# end of Dump support
CONFIG_CCW=y
#
# Virtualization
#
# CONFIG_PROTECTED_VIRTUALIZATION_GUEST is not set
CONFIG_PFAULT=y
CONFIG_CMM=y
# CONFIG_APPLDATA_BASE is not set
# CONFIG_S390_HYPFS_FS is not set
CONFIG_HAVE_KVM=y
CONFIG_HAVE_KVM_IRQCHIP=y
CONFIG_HAVE_KVM_IRQFD=y
CONFIG_HAVE_KVM_IRQ_ROUTING=y
CONFIG_HAVE_KVM_EVENTFD=y
CONFIG_KVM_ASYNC_PF=y
CONFIG_KVM_ASYNC_PF_SYNC=y
CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT=y
CONFIG_KVM_VFIO=y
CONFIG_HAVE_KVM_INVALID_WAKEUPS=y
CONFIG_HAVE_KVM_VCPU_ASYNC_IOCTL=y
CONFIG_HAVE_KVM_NO_POLL=y
CONFIG_VIRTUALIZATION=y
CONFIG_KVM=y
CONFIG_KVM_S390_UCONTROL=y
CONFIG_S390_GUEST=y
# end of Virtualization
#
# Selftests
#
# end of Selftests
#
# General architecture-dependent options
#
CONFIG_CRASH_CORE=y
CONFIG_KEXEC_CORE=y
CONFIG_GENERIC_ENTRY=y
# CONFIG_JUMP_LABEL is not set
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y
CONFIG_HAVE_NMI=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
CONFIG_ARCH_HAS_SET_MEMORY=y
CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y
CONFIG_ARCH_WANTS_NO_INSTR=y
CONFIG_ARCH_32BIT_USTAT_F_TINODE=y
CONFIG_HAVE_ASM_MODVERSIONS=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_RSEQ=y
CONFIG_HAVE_FUNCTION_ARG_ACCESS_API=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE=y
CONFIG_MMU_GATHER_TABLE_FREE=y
CONFIG_MMU_GATHER_RCU_TABLE_FREE=y
CONFIG_MMU_GATHER_NO_GATHER=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
CONFIG_HAVE_ARCH_SECCOMP=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
# CONFIG_SECCOMP is not set
CONFIG_LTO_NONE=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_IDLE=y
CONFIG_ARCH_HAS_SCALED_CPUTIME=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_SOFT_DIRTY=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_RELIABLE_STACKTRACE=y
CONFIG_CLONE_BACKWARDS2=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_OLD_SIGACTION=y
# CONFIG_COMPAT_32BIT_TIME is not set
CONFIG_HAVE_ARCH_VMAP_STACK=y
CONFIG_VMAP_STACK=y
CONFIG_HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET=y
# CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT is not set
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
CONFIG_STRICT_KERNEL_RWX=y
CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
# CONFIG_LOCK_EVENT_COUNTS is not set
CONFIG_ARCH_HAS_MEM_ENCRYPT=y
CONFIG_ARCH_HAS_VDSO_DATA=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
# end of GCOV-based kernel profiling
CONFIG_HAVE_GCC_PLUGINS=y
CONFIG_GCC_PLUGINS=y
# CONFIG_GCC_PLUGIN_LATENT_ENTROPY is not set
# CONFIG_GCC_PLUGIN_RANDSTRUCT is not set
# end of General architecture-dependent options
CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=1
# CONFIG_MODULES is not set
CONFIG_MODULES_TREE_LOOKUP=y
# CONFIG_BLOCK is not set
CONFIG_PREEMPT_NOTIFIERS=y
CONFIG_PADATA=y
CONFIG_ASN1=y
CONFIG_ARCH_INLINE_SPIN_TRYLOCK=y
CONFIG_ARCH_INLINE_SPIN_TRYLOCK_BH=y
CONFIG_ARCH_INLINE_SPIN_LOCK=y
CONFIG_ARCH_INLINE_SPIN_LOCK_BH=y
CONFIG_ARCH_INLINE_SPIN_LOCK_IRQ=y
CONFIG_ARCH_INLINE_SPIN_LOCK_IRQSAVE=y
CONFIG_ARCH_INLINE_SPIN_UNLOCK=y
CONFIG_ARCH_INLINE_SPIN_UNLOCK_BH=y
CONFIG_ARCH_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_ARCH_INLINE_SPIN_UNLOCK_IRQRESTORE=y
CONFIG_ARCH_INLINE_READ_TRYLOCK=y
CONFIG_ARCH_INLINE_READ_LOCK=y
CONFIG_ARCH_INLINE_READ_LOCK_BH=y
CONFIG_ARCH_INLINE_READ_LOCK_IRQ=y
CONFIG_ARCH_INLINE_READ_LOCK_IRQSAVE=y
CONFIG_ARCH_INLINE_READ_UNLOCK=y
CONFIG_ARCH_INLINE_READ_UNLOCK_BH=y
CONFIG_ARCH_INLINE_READ_UNLOCK_IRQ=y
CONFIG_ARCH_INLINE_READ_UNLOCK_IRQRESTORE=y
CONFIG_ARCH_INLINE_WRITE_TRYLOCK=y
CONFIG_ARCH_INLINE_WRITE_LOCK=y
CONFIG_ARCH_INLINE_WRITE_LOCK_BH=y
CONFIG_ARCH_INLINE_WRITE_LOCK_IRQ=y
CONFIG_ARCH_INLINE_WRITE_LOCK_IRQSAVE=y
CONFIG_ARCH_INLINE_WRITE_UNLOCK=y
CONFIG_ARCH_INLINE_WRITE_UNLOCK_BH=y
CONFIG_ARCH_INLINE_WRITE_UNLOCK_IRQ=y
CONFIG_ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE=y
CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_RWSEM_SPIN_ON_OWNER=y
CONFIG_LOCK_SPIN_ON_OWNER=y
CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y
CONFIG_FREEZER=y
#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
CONFIG_ARCH_BINFMT_ELF_STATE=y
CONFIG_ELFCORE=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
CONFIG_BINFMT_SCRIPT=y
CONFIG_BINFMT_MISC=y
CONFIG_COREDUMP=y
# end of Executable file formats
#
# Memory Management options
#
CONFIG_SPARSEMEM=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_VMEMMAP=y
CONFIG_HAVE_MEMBLOCK_PHYS_MAP=y
CONFIG_HAVE_FAST_GUP=y
CONFIG_EXCLUSIVE_SYSTEM_RAM=y
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
# CONFIG_MEMORY_HOTPLUG is not set
CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
CONFIG_MEMORY_BALLOON=y
# CONFIG_BALLOON_COMPACTION is not set
CONFIG_COMPACTION=y
CONFIG_PAGE_REPORTING=y
CONFIG_MIGRATION=y
CONFIG_PHYS_ADDR_T_64BIT=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_TRANSPARENT_HUGEPAGE=y
# CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS is not set
CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
# CONFIG_CLEANCACHE is not set
# CONFIG_CMA is not set
CONFIG_MEM_SOFT_DIRTY=y
# CONFIG_ZPOOL is not set
# CONFIG_ZSMALLOC is not set
# CONFIG_DEFERRED_STRUCT_PAGE_INIT is not set
CONFIG_PAGE_IDLE_FLAG=y
CONFIG_IDLE_PAGE_TRACKING=y
CONFIG_ZONE_DMA=y
# CONFIG_PERCPU_STATS is not set
# CONFIG_GUP_TEST is not set
# CONFIG_READ_ONLY_THP_FOR_FS is not set
CONFIG_ARCH_HAS_PTE_SPECIAL=y
#
# Data Access Monitoring
#
# CONFIG_DAMON is not set
# end of Data Access Monitoring
# end of Memory Management options
CONFIG_NET=y
#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
# CONFIG_UNIX is not set
CONFIG_IUCV=y
# CONFIG_AFIUCV is not set
# CONFIG_INET is not set
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NET_PTP_CLASSIFY=y
CONFIG_NETWORK_PHY_TIMESTAMPING=y
CONFIG_NETFILTER=y
CONFIG_NETFILTER_ADVANCED=y
#
# DECnet: Netfilter Configuration
#
# CONFIG_DECNET_NF_GRABULATOR is not set
# end of DECnet: Netfilter Configuration
CONFIG_ATM=y
CONFIG_ATM_LANE=y
CONFIG_STP=y
CONFIG_MRP=y
CONFIG_BRIDGE=y
# CONFIG_BRIDGE_VLAN_FILTERING is not set
# CONFIG_BRIDGE_MRP is not set
# CONFIG_BRIDGE_CFM is not set
CONFIG_VLAN_8021Q=y
# CONFIG_VLAN_8021Q_GVRP is not set
CONFIG_VLAN_8021Q_MVRP=y
CONFIG_DECNET=y
CONFIG_DECNET_ROUTER=y
CONFIG_LLC=y
CONFIG_LLC2=y
CONFIG_ATALK=y
# CONFIG_DEV_APPLETALK is not set
CONFIG_X25=y
CONFIG_LAPB=y
CONFIG_PHONET=y
CONFIG_IEEE802154=y
CONFIG_IEEE802154_NL802154_EXPERIMENTAL=y
CONFIG_IEEE802154_SOCKET=y
CONFIG_MAC802154=y
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
CONFIG_DNS_RESOLVER=y
# CONFIG_BATMAN_ADV is not set
# CONFIG_VSOCKETS is not set
CONFIG_NETLINK_DIAG=y
# CONFIG_MPLS is not set
# CONFIG_NET_NSH is not set
CONFIG_HSR=y
# CONFIG_QRTR is not set
CONFIG_PCPU_DEV_REFCNT=y
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_SOCK_RX_QUEUE_MAPPING=y
CONFIG_XPS=y
# CONFIG_CGROUP_NET_PRIO is not set
CONFIG_CGROUP_NET_CLASSID=y
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_NET_FLOW_LIMIT=y
#
# Network testing
#
# end of Network testing
# end of Networking options
# CONFIG_CAN is not set
# CONFIG_MCTP is not set
CONFIG_FIB_RULES=y
# CONFIG_RFKILL is not set
CONFIG_NET_9P=y
CONFIG_NET_9P_VIRTIO=y
# CONFIG_NET_9P_DEBUG is not set
CONFIG_CAIF=y
CONFIG_CAIF_DEBUG=y
CONFIG_CAIF_NETDEV=y
CONFIG_CAIF_USB=y
CONFIG_NFC=y
CONFIG_NFC_DIGITAL=y
# CONFIG_NFC_NCI is not set
# CONFIG_NFC_HCI is not set
#
# Near Field Communication (NFC) devices
#
CONFIG_NFC_SIM=y
# CONFIG_NFC_PN532_UART is not set
# end of Near Field Communication (NFC) devices
# CONFIG_PSAMPLE is not set
CONFIG_NET_IFE=y
CONFIG_LWTUNNEL=y
# CONFIG_FAILOVER is not set
CONFIG_ETHTOOL_NETLINK=y
#
# Device Drivers
#
CONFIG_HAVE_PCI=y
# CONFIG_PCI is not set
# CONFIG_PCCARD is not set
#
# Generic Driver Options
#
# CONFIG_UEVENT_HELPER is not set
# CONFIG_DEVTMPFS is not set
# CONFIG_STANDALONE is not set
CONFIG_PREVENT_FIRMWARE_BUILD=y
#
# Firmware loader
#
CONFIG_FW_LOADER=y
CONFIG_FW_LOADER_PAGED_BUF=y
CONFIG_EXTRA_FIRMWARE=""
CONFIG_FW_LOADER_USER_HELPER=y
CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
# CONFIG_FW_LOADER_COMPRESS is not set
# end of Firmware loader
CONFIG_WANT_DEV_COREDUMP=y
# CONFIG_ALLOW_DEV_COREDUMP is not set
CONFIG_DEBUG_DRIVER=y
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_GENERIC_CPU_VULNERABILITIES=y
CONFIG_DMA_SHARED_BUFFER=y
# CONFIG_DMA_FENCE_TRACE is not set
# end of Generic Driver Options
#
# Bus devices
#
# CONFIG_MHI_BUS is not set
# end of Bus devices
# CONFIG_CONNECTOR is not set
#
# Firmware Drivers
#
#
# ARM System Control and Management Interface Protocol
#
# end of ARM System Control and Management Interface Protocol
# CONFIG_FIRMWARE_MEMMAP is not set
# CONFIG_GOOGLE_FIRMWARE is not set
#
# Tegra firmware driver
#
# end of Tegra firmware driver
# end of Firmware Drivers
# CONFIG_GNSS is not set
# CONFIG_MTD is not set
# CONFIG_OF is not set
#
# NVME Support
#
# end of NVME Support
#
# Misc devices
#
CONFIG_DUMMY_IRQ=y
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_C2PORT is not set
#
# EEPROM support
#
CONFIG_EEPROM_93CX6=y
# end of EEPROM support
#
# Texas Instruments shared transport line discipline
#
# CONFIG_TI_ST is not set
# end of Texas Instruments shared transport line discipline
#
# Altera FPGA firmware download module (requires I2C)
#
CONFIG_ECHO=y
# CONFIG_UACCE is not set
# CONFIG_PVPANIC is not set
# end of Misc devices
#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# end of SCSI device support
# CONFIG_NETDEVICES is not set
#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_LEDS=y
CONFIG_INPUT_FF_MEMLESS=y
# CONFIG_INPUT_SPARSEKMAP is not set
CONFIG_INPUT_MATRIXKMAP=y
#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set
#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ATKBD is not set
# CONFIG_KEYBOARD_LKKBD is not set
CONFIG_KEYBOARD_GPIO=y
CONFIG_KEYBOARD_GPIO_POLLED=y
CONFIG_KEYBOARD_MATRIX=y
# CONFIG_KEYBOARD_NEWTON is not set
CONFIG_KEYBOARD_STOWAWAY=y
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_INPUT_MOUSE is not set
CONFIG_INPUT_JOYSTICK=y
# CONFIG_JOYSTICK_ANALOG is not set
CONFIG_JOYSTICK_A3D=y
# CONFIG_JOYSTICK_ADI is not set
# CONFIG_JOYSTICK_COBRA is not set
# CONFIG_JOYSTICK_GF2K is not set
CONFIG_JOYSTICK_GRIP=y
CONFIG_JOYSTICK_GRIP_MP=y
# CONFIG_JOYSTICK_GUILLEMOT is not set
CONFIG_JOYSTICK_INTERACT=y
CONFIG_JOYSTICK_SIDEWINDER=y
CONFIG_JOYSTICK_TMDC=y
# CONFIG_JOYSTICK_IFORCE is not set
CONFIG_JOYSTICK_WARRIOR=y
# CONFIG_JOYSTICK_MAGELLAN is not set
CONFIG_JOYSTICK_SPACEORB=y
# CONFIG_JOYSTICK_SPACEBALL is not set
CONFIG_JOYSTICK_STINGER=y
CONFIG_JOYSTICK_TWIDJOY=y
CONFIG_JOYSTICK_ZHENHUA=y
# CONFIG_JOYSTICK_JOYDUMP is not set
# CONFIG_JOYSTICK_FSIA6B is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
CONFIG_INPUT_MISC=y
CONFIG_INPUT_AD714X=y
CONFIG_INPUT_E3X0_BUTTON=y
CONFIG_INPUT_GPIO_BEEPER=y
CONFIG_INPUT_GPIO_DECODER=y
# CONFIG_INPUT_GPIO_VIBRA is not set
CONFIG_INPUT_UINPUT=y
# CONFIG_INPUT_PWM_BEEPER is not set
CONFIG_INPUT_PWM_VIBRA=y
CONFIG_INPUT_GPIO_ROTARY_ENCODER=y
CONFIG_INPUT_ADXL34X=y
CONFIG_INPUT_CMA3000=y
CONFIG_RMI4_CORE=y
CONFIG_RMI4_F03=y
CONFIG_RMI4_F03_SERIO=y
CONFIG_RMI4_2D_SENSOR=y
CONFIG_RMI4_F11=y
# CONFIG_RMI4_F12 is not set
# CONFIG_RMI4_F30 is not set
# CONFIG_RMI4_F34 is not set
# CONFIG_RMI4_F3A is not set
# CONFIG_RMI4_F55 is not set
#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=y
CONFIG_SERIO_PS2MULT=y
# CONFIG_SERIO_GPIO_PS2 is not set
CONFIG_USERIO=y
CONFIG_GAMEPORT=y
CONFIG_GAMEPORT_NS558=y
CONFIG_GAMEPORT_L4=y
# end of Hardware I/O ports
# end of Input device support
#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
CONFIG_LDISC_AUTOLOAD=y
# CONFIG_N_GSM is not set
# CONFIG_NULL_TTY is not set
CONFIG_HVC_DRIVER=y
# CONFIG_HVC_IUCV is not set
# CONFIG_RPMSG_TTY is not set
CONFIG_SERIAL_DEV_BUS=y
# CONFIG_SERIAL_DEV_CTRL_TTYPORT is not set
# CONFIG_TTY_PRINTK is not set
CONFIG_VIRTIO_CONSOLE=y
CONFIG_HW_RANDOM=y
CONFIG_HW_RANDOM_VIRTIO=y
CONFIG_HW_RANDOM_S390=y
# CONFIG_DEVMEM is not set
# CONFIG_HANGCHECK_TIMER is not set
#
# S/390 character device drivers
#
# CONFIG_TN3270 is not set
# CONFIG_TN3215 is not set
# CONFIG_SCLP_TTY is not set
CONFIG_SCLP_VT220_TTY=y
CONFIG_SCLP_VT220_CONSOLE=y
# CONFIG_HMC_DRV is not set
# CONFIG_SCLP_OFB is not set
CONFIG_S390_TAPE=y
#
# S/390 tape hardware support
#
# CONFIG_S390_TAPE_34XX is not set
CONFIG_S390_TAPE_3590=y
CONFIG_VMLOGRDR=y
# CONFIG_VMCP is not set
# CONFIG_MONREADER is not set
# CONFIG_MONWRITER is not set
# CONFIG_S390_VMUR is not set
CONFIG_RANDOM_TRUST_BOOTLOADER=y
# end of Character devices
#
# I2C support
#
# CONFIG_I2C is not set
# end of I2C support
# CONFIG_I3C is not set
# CONFIG_SPMI is not set
CONFIG_HSI=y
CONFIG_HSI_BOARDINFO=y
#
# HSI controllers
#
#
# HSI clients
#
# CONFIG_HSI_CHAR is not set
CONFIG_PPS=y
# CONFIG_PPS_DEBUG is not set
#
# PPS clients support
#
CONFIG_PPS_CLIENT_KTIMER=y
# CONFIG_PPS_CLIENT_LDISC is not set
CONFIG_PPS_CLIENT_GPIO=y
#
# PPS generators support
#
#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK_OPTIONAL=y
#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
# end of PTP clock support
# CONFIG_PINCTRL is not set
CONFIG_GPIOLIB=y
CONFIG_GPIOLIB_FASTPATH_LIMIT=512
CONFIG_DEBUG_GPIO=y
# CONFIG_GPIO_SYSFS is not set
CONFIG_GPIO_CDEV=y
CONFIG_GPIO_CDEV_V1=y
#
# MFD GPIO expanders
#
# end of MFD GPIO expanders
#
# Virtual GPIO drivers
#
# CONFIG_GPIO_AGGREGATOR is not set
# CONFIG_GPIO_MOCKUP is not set
# CONFIG_GPIO_VIRTIO is not set
# end of Virtual GPIO drivers
CONFIG_POWER_RESET=y
# CONFIG_POWER_RESET_RESTART is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
CONFIG_TEST_POWER=y
# CONFIG_BATTERY_BQ27XXX is not set
CONFIG_CHARGER_MAX8903=y
# CONFIG_CHARGER_GPIO is not set
# CONFIG_CHARGER_LT3651 is not set
# CONFIG_THERMAL is not set
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED=y
CONFIG_WATCHDOG_OPEN_TIMEOUT=0
# CONFIG_WATCHDOG_SYSFS is not set
# CONFIG_WATCHDOG_HRTIMER_PRETIMEOUT is not set
#
# Watchdog Pretimeout Governors
#
# CONFIG_WATCHDOG_PRETIMEOUT_GOV is not set
#
# Watchdog Device Drivers
#
# CONFIG_SOFT_WATCHDOG is not set
CONFIG_MEN_A21_WDT=y
CONFIG_DIAG288_WATCHDOG=y
# CONFIG_REGULATOR is not set
CONFIG_RC_CORE=y
CONFIG_RC_MAP=y
CONFIG_LIRC=y
CONFIG_RC_DECODERS=y
CONFIG_IR_NEC_DECODER=y
CONFIG_IR_RC5_DECODER=y
CONFIG_IR_RC6_DECODER=y
CONFIG_IR_JVC_DECODER=y
CONFIG_IR_SONY_DECODER=y
CONFIG_IR_SANYO_DECODER=y
# CONFIG_IR_SHARP_DECODER is not set
CONFIG_IR_MCE_KBD_DECODER=y
CONFIG_IR_XMP_DECODER=y
# CONFIG_IR_IMON_DECODER is not set
# CONFIG_IR_RCMM_DECODER is not set
# CONFIG_RC_DEVICES is not set
#
# CEC support
#
# CONFIG_MEDIA_CEC_SUPPORT is not set
# end of CEC support
#
# Graphics support
#
#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=25
# end of Console display driver support
# end of Graphics support
#
# HID support
#
# CONFIG_HID is not set
# end of HID support
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
# CONFIG_LEDS_CLASS_FLASH is not set
# CONFIG_LEDS_CLASS_MULTICOLOR is not set
CONFIG_LEDS_BRIGHTNESS_HW_CHANGED=y
#
# LED drivers
#
# CONFIG_LEDS_GPIO is not set
CONFIG_LEDS_PWM=y
CONFIG_LEDS_LT3593=y
#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
# CONFIG_LEDS_MLXREG is not set
CONFIG_LEDS_USER=y
#
# Flash and Torch LED drivers
#
#
# LED Triggers
#
# CONFIG_LEDS_TRIGGERS is not set
CONFIG_ACCESSIBILITY=y
#
# Speakup console speech
#
# CONFIG_SPEAKUP is not set
# end of Speakup console speech
# CONFIG_DMADEVICES is not set
#
# DMABUF options
#
CONFIG_SYNC_FILE=y
CONFIG_SW_SYNC=y
# CONFIG_UDMABUF is not set
# CONFIG_DMABUF_MOVE_NOTIFY is not set
# CONFIG_DMABUF_DEBUG is not set
# CONFIG_DMABUF_SELFTESTS is not set
# CONFIG_DMABUF_HEAPS is not set
# CONFIG_DMABUF_SYSFS_STATS is not set
# end of DMABUF options
CONFIG_AUXDISPLAY=y
# CONFIG_HD44780 is not set
# CONFIG_CHARLCD_BL_OFF is not set
# CONFIG_CHARLCD_BL_ON is not set
CONFIG_CHARLCD_BL_FLASH=y
CONFIG_UIO=y
CONFIG_UIO_PDRV_GENIRQ=y
CONFIG_UIO_DMEM_GENIRQ=y
CONFIG_VFIO=y
CONFIG_VFIO_IOMMU_TYPE1=y
CONFIG_VFIO_NOIOMMU=y
CONFIG_VFIO_MDEV=y
# CONFIG_VIRT_DRIVERS is not set
CONFIG_VIRTIO=y
CONFIG_VIRTIO_MENU=y
CONFIG_VIRTIO_BALLOON=y
CONFIG_VIRTIO_INPUT=y
# CONFIG_VDPA is not set
CONFIG_VHOST_IOTLB=y
CONFIG_VHOST=y
CONFIG_VHOST_MENU=y
CONFIG_VHOST_NET=y
# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set
#
# Microsoft Hyper-V guest support
#
# end of Microsoft Hyper-V guest support
# CONFIG_GREYBUS is not set
# CONFIG_COMEDI is not set
# CONFIG_STAGING is not set
# CONFIG_COMMON_CLK is not set
CONFIG_HWSPINLOCK=y
#
# Clock Source drivers
#
# end of Clock Source drivers
# CONFIG_MAILBOX is not set
CONFIG_IOMMU_API=y
CONFIG_IOMMU_SUPPORT=y
#
# Generic IOMMU Pagetable Support
#
# end of Generic IOMMU Pagetable Support
# CONFIG_IOMMU_DEBUGFS is not set
CONFIG_IOMMU_DEFAULT_DMA_STRICT=y
# CONFIG_IOMMU_DEFAULT_DMA_LAZY is not set
# CONFIG_IOMMU_DEFAULT_PASSTHROUGH is not set
CONFIG_S390_CCW_IOMMU=y
# CONFIG_S390_AP_IOMMU is not set
#
# Remoteproc drivers
#
CONFIG_REMOTEPROC=y
# CONFIG_REMOTEPROC_CDEV is not set
# end of Remoteproc drivers
#
# Rpmsg drivers
#
CONFIG_RPMSG=y
CONFIG_RPMSG_CHAR=y
CONFIG_RPMSG_NS=y
CONFIG_RPMSG_VIRTIO=y
# end of Rpmsg drivers
#
# SOC (System On Chip) specific Drivers
#
#
# Amlogic SoC drivers
#
# end of Amlogic SoC drivers
#
# Broadcom SoC drivers
#
# end of Broadcom SoC drivers
#
# NXP/Freescale QorIQ SoC drivers
#
# end of NXP/Freescale QorIQ SoC drivers
#
# i.MX SoC drivers
#
# end of i.MX SoC drivers
#
# Enable LiteX SoC Builder specific drivers
#
# end of Enable LiteX SoC Builder specific drivers
#
# Qualcomm SoC drivers
#
# end of Qualcomm SoC drivers
# CONFIG_SOC_TI is not set
#
# Xilinx SoC drivers
#
# end of Xilinx SoC drivers
# end of SOC (System On Chip) specific Drivers
CONFIG_PM_DEVFREQ=y
#
# DEVFREQ Governors
#
CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=y
# CONFIG_DEVFREQ_GOV_PERFORMANCE is not set
CONFIG_DEVFREQ_GOV_POWERSAVE=y
# CONFIG_DEVFREQ_GOV_USERSPACE is not set
# CONFIG_DEVFREQ_GOV_PASSIVE is not set
#
# DEVFREQ Drivers
#
# CONFIG_PM_DEVFREQ_EVENT is not set
CONFIG_EXTCON=y
#
# Extcon Device Drivers
#
# CONFIG_EXTCON_GPIO is not set
CONFIG_EXTCON_MAX3355=y
# CONFIG_EXTCON_USB_GPIO is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
CONFIG_PWM=y
CONFIG_PWM_SYSFS=y
# CONFIG_PWM_DEBUG is not set
#
# IRQ chip support
#
# end of IRQ chip support
CONFIG_RESET_CONTROLLER=y
#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_PHY_CAN_TRANSCEIVER is not set
#
# PHY drivers for Broadcom platforms
#
# end of PHY drivers for Broadcom platforms
# end of PHY Subsystem
CONFIG_POWERCAP=y
# CONFIG_DTPM is not set
# CONFIG_RAS is not set
#
# Android
#
# CONFIG_ANDROID is not set
# end of Android
CONFIG_DAX=y
# CONFIG_DEV_DAX is not set
CONFIG_NVMEM=y
CONFIG_NVMEM_SYSFS=y
#
# HW tracing support
#
# CONFIG_STM is not set
# end of HW tracing support
CONFIG_FPGA=y
# CONFIG_ALTERA_PR_IP_CORE is not set
# CONFIG_FPGA_BRIDGE is not set
CONFIG_PM_OPP=y
# CONFIG_SIOX is not set
# CONFIG_SLIMBUS is not set
# CONFIG_INTERCONNECT is not set
# CONFIG_COUNTER is not set
# CONFIG_MOST is not set
# end of Device Drivers
#
# File systems
#
# CONFIG_VALIDATE_FS_PARSER is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
CONFIG_EXPORTFS_BLOCK_OPS=y
CONFIG_FILE_LOCKING=y
CONFIG_FS_ENCRYPTION=y
CONFIG_FS_VERITY=y
# CONFIG_FS_VERITY_DEBUG is not set
# CONFIG_FS_VERITY_BUILTIN_SIGNATURES is not set
CONFIG_FSNOTIFY=y
# CONFIG_DNOTIFY is not set
CONFIG_INOTIFY_USER=y
CONFIG_FANOTIFY=y
CONFIG_QUOTA=y
# CONFIG_QUOTA_NETLINK_INTERFACE is not set
CONFIG_PRINT_QUOTA_WARNING=y
CONFIG_QUOTA_DEBUG=y
CONFIG_QUOTA_TREE=y
CONFIG_QFMT_V1=y
CONFIG_QFMT_V2=y
CONFIG_QUOTACTL=y
CONFIG_AUTOFS4_FS=y
CONFIG_AUTOFS_FS=y
CONFIG_FUSE_FS=y
CONFIG_CUSE=y
# CONFIG_VIRTIO_FS is not set
# CONFIG_OVERLAY_FS is not set
#
# Caches
#
# CONFIG_FSCACHE is not set
# end of Caches
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
# CONFIG_PROC_VMCORE is not set
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
CONFIG_PROC_CHILDREN=y
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_TMPFS_XATTR=y
# CONFIG_TMPFS_INODE64 is not set
CONFIG_ARCH_SUPPORTS_HUGETLBFS=y
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_MEMFD_CREATE=y
CONFIG_ARCH_HAS_GIGANTIC_PAGE=y
CONFIG_CONFIGFS_FS=y
# end of Pseudo filesystems
CONFIG_MISC_FILESYSTEMS=y
CONFIG_ORANGEFS_FS=y
# CONFIG_ECRYPT_FS is not set
# CONFIG_CRAMFS is not set
CONFIG_PSTORE=y
CONFIG_PSTORE_DEFAULT_KMSG_BYTES=10240
CONFIG_PSTORE_DEFLATE_COMPRESS=y
CONFIG_PSTORE_LZO_COMPRESS=y
# CONFIG_PSTORE_LZ4_COMPRESS is not set
# CONFIG_PSTORE_LZ4HC_COMPRESS is not set
# CONFIG_PSTORE_842_COMPRESS is not set
# CONFIG_PSTORE_ZSTD_COMPRESS is not set
CONFIG_PSTORE_COMPRESS=y
CONFIG_PSTORE_DEFLATE_COMPRESS_DEFAULT=y
# CONFIG_PSTORE_LZO_COMPRESS_DEFAULT is not set
CONFIG_PSTORE_COMPRESS_DEFAULT="deflate"
# CONFIG_PSTORE_CONSOLE is not set
CONFIG_PSTORE_PMSG=y
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_CODEPAGE_737=y
CONFIG_NLS_CODEPAGE_775=y
CONFIG_NLS_CODEPAGE_850=y
# CONFIG_NLS_CODEPAGE_852 is not set
CONFIG_NLS_CODEPAGE_855=y
# CONFIG_NLS_CODEPAGE_857 is not set
CONFIG_NLS_CODEPAGE_860=y
CONFIG_NLS_CODEPAGE_861=y
CONFIG_NLS_CODEPAGE_862=y
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
CONFIG_NLS_CODEPAGE_866=y
CONFIG_NLS_CODEPAGE_869=y
CONFIG_NLS_CODEPAGE_936=y
# CONFIG_NLS_CODEPAGE_950 is not set
CONFIG_NLS_CODEPAGE_932=y
# CONFIG_NLS_CODEPAGE_949 is not set
CONFIG_NLS_CODEPAGE_874=y
CONFIG_NLS_ISO8859_8=y
# CONFIG_NLS_CODEPAGE_1250 is not set
CONFIG_NLS_CODEPAGE_1251=y
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_ISO8859_2=y
CONFIG_NLS_ISO8859_3=y
CONFIG_NLS_ISO8859_4=y
CONFIG_NLS_ISO8859_5=y
# CONFIG_NLS_ISO8859_6 is not set
CONFIG_NLS_ISO8859_7=y
CONFIG_NLS_ISO8859_9=y
CONFIG_NLS_ISO8859_13=y
# CONFIG_NLS_ISO8859_14 is not set
CONFIG_NLS_ISO8859_15=y
CONFIG_NLS_KOI8_R=y
# CONFIG_NLS_KOI8_U is not set
CONFIG_NLS_MAC_ROMAN=y
# CONFIG_NLS_MAC_CELTIC is not set
CONFIG_NLS_MAC_CENTEURO=y
CONFIG_NLS_MAC_CROATIAN=y
CONFIG_NLS_MAC_CYRILLIC=y
# CONFIG_NLS_MAC_GAELIC is not set
CONFIG_NLS_MAC_GREEK=y
CONFIG_NLS_MAC_ICELAND=y
CONFIG_NLS_MAC_INUIT=y
CONFIG_NLS_MAC_ROMANIAN=y
# CONFIG_NLS_MAC_TURKISH is not set
CONFIG_NLS_UTF8=y
# CONFIG_UNICODE is not set
CONFIG_IO_WQ=y
# end of File systems
#
# Security options
#
CONFIG_KEYS=y
# CONFIG_KEYS_REQUEST_CACHE is not set
CONFIG_PERSISTENT_KEYRINGS=y
CONFIG_ENCRYPTED_KEYS=y
CONFIG_KEY_DH_OPERATIONS=y
CONFIG_SECURITY_DMESG_RESTRICT=y
# CONFIG_SECURITYFS is not set
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
CONFIG_HARDENED_USERCOPY=y
# CONFIG_HARDENED_USERCOPY_PAGESPAN is not set
# CONFIG_FORTIFY_SOURCE is not set
# CONFIG_STATIC_USERMODEHELPER is not set
# CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_LSM="landlock,lockdown,yama,loadpin,safesetid,integrity,bpf"
#
# Kernel hardening options
#
#
# Memory initialization
#
CONFIG_CC_HAS_AUTO_VAR_INIT_PATTERN=y
CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO=y
# CONFIG_INIT_STACK_NONE is not set
# CONFIG_INIT_STACK_ALL_PATTERN is not set
CONFIG_INIT_STACK_ALL_ZERO=y
# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
CONFIG_CC_HAS_ZERO_CALL_USED_REGS=y
# CONFIG_ZERO_CALL_USED_REGS is not set
# end of Memory initialization
# end of Kernel hardening options
# end of Security options
CONFIG_CRYPTO=y
#
# Crypto core or helper
#
# CONFIG_CRYPTO_FIPS is not set
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_SKCIPHER=y
CONFIG_CRYPTO_SKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=y
CONFIG_CRYPTO_AKCIPHER2=y
CONFIG_CRYPTO_AKCIPHER=y
CONFIG_CRYPTO_KPP2=y
CONFIG_CRYPTO_KPP=y
CONFIG_CRYPTO_ACOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_USER=y
# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
# CONFIG_CRYPTO_MANAGER_EXTRA_TESTS is not set
CONFIG_CRYPTO_GF128MUL=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_NULL2=y
CONFIG_CRYPTO_PCRYPT=y
CONFIG_CRYPTO_CRYPTD=y
CONFIG_CRYPTO_AUTHENC=y
# CONFIG_CRYPTO_TEST is not set
CONFIG_CRYPTO_ENGINE=y
#
# Public-key cryptography
#
CONFIG_CRYPTO_RSA=y
CONFIG_CRYPTO_DH=y
CONFIG_CRYPTO_ECC=y
CONFIG_CRYPTO_ECDH=y
# CONFIG_CRYPTO_ECDSA is not set
# CONFIG_CRYPTO_ECRDSA is not set
# CONFIG_CRYPTO_SM2 is not set
# CONFIG_CRYPTO_CURVE25519 is not set
#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=y
# CONFIG_CRYPTO_GCM is not set
CONFIG_CRYPTO_CHACHA20POLY1305=y
# CONFIG_CRYPTO_AEGIS128 is not set
CONFIG_CRYPTO_SEQIV=y
CONFIG_CRYPTO_ECHAINIV=y
#
# Block modes
#
CONFIG_CRYPTO_CBC=y
# CONFIG_CRYPTO_CFB is not set
CONFIG_CRYPTO_CTR=y
CONFIG_CRYPTO_CTS=y
CONFIG_CRYPTO_ECB=y
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_OFB is not set
# CONFIG_CRYPTO_PCBC is not set
CONFIG_CRYPTO_XTS=y
# CONFIG_CRYPTO_KEYWRAP is not set
# CONFIG_CRYPTO_ADIANTUM is not set
# CONFIG_CRYPTO_ESSIV is not set
#
# Hash modes
#
CONFIG_CRYPTO_CMAC=y
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=y
CONFIG_CRYPTO_VMAC=y
#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32=y
# CONFIG_CRYPTO_XXHASH is not set
# CONFIG_CRYPTO_BLAKE2B is not set
# CONFIG_CRYPTO_BLAKE2S is not set
CONFIG_CRYPTO_CRCT10DIF=y
CONFIG_CRYPTO_GHASH=y
CONFIG_CRYPTO_POLY1305=y
CONFIG_CRYPTO_MD4=y
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=y
# CONFIG_CRYPTO_RMD160 is not set
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_SHA3=y
# CONFIG_CRYPTO_SM3 is not set
# CONFIG_CRYPTO_STREEBOG is not set
# CONFIG_CRYPTO_WP512 is not set
#
# Ciphers
#
CONFIG_CRYPTO_AES=y
# CONFIG_CRYPTO_AES_TI is not set
CONFIG_CRYPTO_ANUBIS=y
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_BLOWFISH is not set
CONFIG_CRYPTO_CAMELLIA=y
CONFIG_CRYPTO_CAST_COMMON=y
CONFIG_CRYPTO_CAST5=y
CONFIG_CRYPTO_CAST6=y
CONFIG_CRYPTO_DES=y
CONFIG_CRYPTO_FCRYPT=y
CONFIG_CRYPTO_KHAZAD=y
CONFIG_CRYPTO_CHACHA20=y
CONFIG_CRYPTO_SEED=y
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_SM4 is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_TWOFISH is not set
#
# Compression
#
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_LZO=y
# CONFIG_CRYPTO_842 is not set
CONFIG_CRYPTO_LZ4=y
CONFIG_CRYPTO_LZ4HC=y
# CONFIG_CRYPTO_ZSTD is not set
#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=y
CONFIG_CRYPTO_DRBG_MENU=y
CONFIG_CRYPTO_DRBG_HMAC=y
CONFIG_CRYPTO_DRBG_HASH=y
# CONFIG_CRYPTO_DRBG_CTR is not set
CONFIG_CRYPTO_DRBG=y
CONFIG_CRYPTO_JITTERENTROPY=y
CONFIG_CRYPTO_USER_API=y
# CONFIG_CRYPTO_USER_API_HASH is not set
# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
CONFIG_CRYPTO_USER_API_RNG=y
# CONFIG_CRYPTO_USER_API_RNG_CAVP is not set
# CONFIG_CRYPTO_USER_API_AEAD is not set
CONFIG_CRYPTO_USER_API_ENABLE_OBSOLETE=y
# CONFIG_CRYPTO_STATS is not set
CONFIG_CRYPTO_HASH_INFO=y
#
# Crypto library routines
#
CONFIG_CRYPTO_LIB_AES=y
# CONFIG_CRYPTO_LIB_BLAKE2S is not set
CONFIG_CRYPTO_LIB_CHACHA_GENERIC=y
# CONFIG_CRYPTO_LIB_CHACHA is not set
# CONFIG_CRYPTO_LIB_CURVE25519 is not set
CONFIG_CRYPTO_LIB_DES=y
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=1
CONFIG_CRYPTO_LIB_POLY1305_GENERIC=y
# CONFIG_CRYPTO_LIB_POLY1305 is not set
# CONFIG_CRYPTO_LIB_CHACHA20POLY1305 is not set
CONFIG_CRYPTO_LIB_SHA256=y
CONFIG_CRYPTO_HW=y
CONFIG_ZCRYPT=y
# CONFIG_ZCRYPT_DEBUG is not set
CONFIG_ZCRYPT_MULTIDEVNODES=y
CONFIG_PKEY=y
CONFIG_CRYPTO_PAES_S390=y
CONFIG_CRYPTO_SHA1_S390=y
CONFIG_CRYPTO_SHA256_S390=y
CONFIG_CRYPTO_SHA512_S390=y
# CONFIG_CRYPTO_SHA3_256_S390 is not set
# CONFIG_CRYPTO_SHA3_512_S390 is not set
CONFIG_CRYPTO_DES_S390=y
CONFIG_CRYPTO_AES_S390=y
CONFIG_S390_PRNG=y
CONFIG_CRYPTO_GHASH_S390=y
CONFIG_CRYPTO_CRC32_S390=y
CONFIG_CRYPTO_DEV_VIRTIO=y
CONFIG_ASYMMETRIC_KEY_TYPE=y
CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y
CONFIG_X509_CERTIFICATE_PARSER=y
# CONFIG_PKCS8_PRIVATE_KEY_PARSER is not set
# CONFIG_PKCS7_MESSAGE_PARSER is not set
#
# Certificates for signature checking
#
# CONFIG_SYSTEM_TRUSTED_KEYRING is not set
CONFIG_SYSTEM_BLACKLIST_KEYRING=y
CONFIG_SYSTEM_BLACKLIST_HASH_LIST=""
# end of Certificates for signature checking
CONFIG_BINARY_PRINTF=y
#
# Library routines
#
# CONFIG_PACKING is not set
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_FIND_FIRST_BIT=y
# CONFIG_CORDIC is not set
# CONFIG_PRIME_NUMBERS is not set
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
CONFIG_CRC_CCITT=y
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
CONFIG_CRC_ITU_T=y
CONFIG_CRC32=y
CONFIG_CRC32_SELFTEST=y
# CONFIG_CRC32_SLICEBY8 is not set
# CONFIG_CRC32_SLICEBY4 is not set
CONFIG_CRC32_SARWATE=y
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC64 is not set
CONFIG_CRC4=y
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=y
CONFIG_CRC8=y
CONFIG_RANDOM32_SELFTEST=y
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_ZLIB_DFLTCC=y
CONFIG_LZO_COMPRESS=y
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_COMPRESS=y
CONFIG_LZ4HC_COMPRESS=y
CONFIG_LZ4_DECOMPRESS=y
# CONFIG_XZ_DEC is not set
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_INTERVAL_TREE=y
CONFIG_XARRAY_MULTI=y
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_DMA=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_ARCH_HAS_FORCE_DMA_UNENCRYPTED=y
CONFIG_SWIOTLB=y
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_DMA_MAP_BENCHMARK is not set
CONFIG_SGL_ALLOC=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_GLOB=y
CONFIG_GLOB_SELFTEST=y
CONFIG_NLATTR=y
CONFIG_CLZ_TAB=y
# CONFIG_IRQ_POLL is not set
CONFIG_MPILIB=y
CONFIG_OID_REGISTRY=y
CONFIG_HAVE_GENERIC_VDSO=y
CONFIG_GENERIC_GETTIMEOFDAY=y
CONFIG_GENERIC_VDSO_TIME_NS=y
CONFIG_ARCH_STACKWALK=y
# end of Library routines
#
# Kernel hacking
#
#
# printk and dmesg options
#
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_SYMBOLIC_ERRNAME is not set
# CONFIG_DEBUG_BUGVERBOSE is not set
# end of printk and dmesg options
#
# Compile-time checks and compiler options
#
# CONFIG_DEBUG_INFO is not set
CONFIG_FRAME_WARN=2048
CONFIG_STRIP_ASM_SYMS=y
# CONFIG_READABLE_ASM is not set
# CONFIG_HEADERS_INSTALL is not set
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
# CONFIG_DEBUG_FORCE_FUNCTION_ALIGN_64B is not set
# CONFIG_VMLINUX_MAP is not set
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# end of Compile-time checks and compiler options
#
# Generic Kernel Debugging Instruments
#
CONFIG_MAGIC_SYSRQ=y
CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0x1
CONFIG_MAGIC_SYSRQ_SERIAL=y
CONFIG_MAGIC_SYSRQ_SERIAL_SEQUENCE=""
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_FS_ALLOW_ALL=y
# CONFIG_DEBUG_FS_DISALLOW_MOUNT is not set
# CONFIG_DEBUG_FS_ALLOW_NONE is not set
CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y
CONFIG_UBSAN=y
# CONFIG_UBSAN_TRAP is not set
CONFIG_CC_HAS_UBSAN_BOUNDS=y
CONFIG_UBSAN_BOUNDS=y
CONFIG_UBSAN_ONLY_BOUNDS=y
CONFIG_UBSAN_SHIFT=y
# CONFIG_UBSAN_DIV_ZERO is not set
# CONFIG_UBSAN_UNREACHABLE is not set
CONFIG_UBSAN_BOOL=y
CONFIG_UBSAN_ENUM=y
# CONFIG_UBSAN_ALIGNMENT is not set
# CONFIG_UBSAN_SANITIZE_ALL is not set
CONFIG_HAVE_ARCH_KCSAN=y
CONFIG_HAVE_KCSAN_COMPILER=y
# CONFIG_KCSAN is not set
# end of Generic Kernel Debugging Instruments
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MISC=y
#
# Memory Debugging
#
CONFIG_PAGE_EXTENSION=y
CONFIG_DEBUG_PAGEALLOC=y
CONFIG_DEBUG_PAGEALLOC_ENABLE_DEFAULT=y
# CONFIG_PAGE_OWNER is not set
CONFIG_PAGE_POISONING=y
# CONFIG_DEBUG_PAGE_REF is not set
CONFIG_DEBUG_RODATA_TEST=y
CONFIG_ARCH_HAS_DEBUG_WX=y
# CONFIG_DEBUG_WX is not set
CONFIG_GENERIC_PTDUMP=y
# CONFIG_PTDUMP_DEBUGFS is not set
CONFIG_DEBUG_OBJECTS=y
CONFIG_DEBUG_OBJECTS_SELFTEST=y
CONFIG_DEBUG_OBJECTS_FREE=y
CONFIG_DEBUG_OBJECTS_TIMERS=y
CONFIG_DEBUG_OBJECTS_WORK=y
CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
# CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER is not set
CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1
CONFIG_SLUB_DEBUG_ON=y
# CONFIG_SLUB_STATS is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_STACK_USAGE is not set
CONFIG_SCHED_STACK_END_CHECK=y
CONFIG_ARCH_HAS_DEBUG_VM_PGTABLE=y
CONFIG_DEBUG_VM=y
# CONFIG_DEBUG_VM_VMACACHE is not set
# CONFIG_DEBUG_VM_RB is not set
# CONFIG_DEBUG_VM_PGFLAGS is not set
CONFIG_DEBUG_VM_PGTABLE=y
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_PER_CPU_MAPS is not set
CONFIG_HAVE_ARCH_KASAN=y
CONFIG_HAVE_ARCH_KASAN_VMALLOC=y
CONFIG_CC_HAS_KASAN_GENERIC=y
CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
# CONFIG_KASAN is not set
CONFIG_HAVE_ARCH_KFENCE=y
# CONFIG_KFENCE is not set
# end of Memory Debugging
# CONFIG_DEBUG_SHIRQ is not set
#
# Debug Oops, Lockups and Hangs
#
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
CONFIG_DETECT_HUNG_TASK=y
CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=120
# CONFIG_BOOTPARAM_HUNG_TASK_PANIC is not set
CONFIG_BOOTPARAM_HUNG_TASK_PANIC_VALUE=0
# CONFIG_WQ_WATCHDOG is not set
# end of Debug Oops, Lockups and Hangs
#
# Scheduler Debugging
#
CONFIG_SCHED_DEBUG=y
CONFIG_SCHED_INFO=y
CONFIG_SCHEDSTATS=y
# end of Scheduler Debugging
# CONFIG_DEBUG_TIMEKEEPING is not set
#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
CONFIG_PROVE_LOCKING=y
# CONFIG_PROVE_RAW_LOCK_NESTING is not set
CONFIG_LOCK_STAT=y
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y
CONFIG_DEBUG_RWSEMS=y
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_LOCKDEP=y
CONFIG_LOCKDEP_BITS=15
CONFIG_LOCKDEP_CHAINS_BITS=16
CONFIG_LOCKDEP_STACK_TRACE_BITS=19
CONFIG_LOCKDEP_STACK_TRACE_HASH_BITS=14
CONFIG_LOCKDEP_CIRCULAR_QUEUE_BITS=12
CONFIG_DEBUG_LOCKDEP=y
CONFIG_DEBUG_ATOMIC_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
CONFIG_LOCK_TORTURE_TEST=y
CONFIG_WW_MUTEX_SELFTEST=y
# CONFIG_SCF_TORTURE_TEST is not set
# CONFIG_CSD_LOCK_WAIT_DEBUG is not set
# end of Lock Debugging (spinlocks, mutexes, etc...)
CONFIG_TRACE_IRQFLAGS=y
CONFIG_DEBUG_IRQFLAGS=y
CONFIG_STACKTRACE=y
CONFIG_WARN_ALL_UNSEEDED_RANDOM=y
CONFIG_DEBUG_KOBJECT=y
# CONFIG_DEBUG_KOBJECT_RELEASE is not set
#
# Debug kernel data structures
#
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_PLIST is not set
# CONFIG_DEBUG_SG is not set
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_BUG_ON_DATA_CORRUPTION is not set
# end of Debug kernel data structures
CONFIG_DEBUG_CREDENTIALS=y
#
# RCU Debugging
#
CONFIG_PROVE_RCU=y
# CONFIG_PROVE_RCU_LIST is not set
CONFIG_TORTURE_TEST=y
# CONFIG_RCU_SCALE_TEST is not set
CONFIG_RCU_TORTURE_TEST=y
# CONFIG_RCU_REF_SCALE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=21
CONFIG_RCU_TRACE=y
# CONFIG_RCU_EQS_DEBUG is not set
# end of RCU Debugging
CONFIG_DEBUG_WQ_FORCE_RR_CPU=y
# CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set
CONFIG_LATENCYTOP=y
CONFIG_NOP_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_FENTRY=y
CONFIG_HAVE_NOP_MCOUNT=y
CONFIG_TRACER_MAX_TRACE=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_PREEMPTIRQ_TRACEPOINTS=y
CONFIG_TRACING=y
CONFIG_TRACING_SUPPORT=y
CONFIG_FTRACE=y
# CONFIG_BOOTTIME_TRACING is not set
# CONFIG_FUNCTION_TRACER is not set
# CONFIG_STACK_TRACER is not set
# CONFIG_IRQSOFF_TRACER is not set
# CONFIG_SCHED_TRACER is not set
# CONFIG_HWLAT_TRACER is not set
# CONFIG_OSNOISE_TRACER is not set
# CONFIG_TIMERLAT_TRACER is not set
CONFIG_ENABLE_DEFAULT_TRACERS=y
# CONFIG_FTRACE_SYSCALLS is not set
CONFIG_TRACER_SNAPSHOT=y
# CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP is not set
CONFIG_BRANCH_PROFILE_NONE=y
# CONFIG_PROFILE_ANNOTATED_BRANCHES is not set
# CONFIG_PROFILE_ALL_BRANCHES is not set
# CONFIG_SYNTH_EVENTS is not set
# CONFIG_HIST_TRIGGERS is not set
# CONFIG_TRACE_EVENT_INJECT is not set
# CONFIG_TRACEPOINT_BENCHMARK is not set
CONFIG_RING_BUFFER_BENCHMARK=y
CONFIG_TRACE_EVAL_MAP_FILE=y
CONFIG_RING_BUFFER_STARTUP_TEST=y
# CONFIG_RING_BUFFER_VALIDATE_TIME_DELTAS is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_SAMPLE_FTRACE_DIRECT=y
CONFIG_HAVE_SAMPLE_FTRACE_DIRECT_MULTI=y
CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y
# CONFIG_STRICT_DEVMEM is not set
#
# s390 Debugging
#
CONFIG_EARLY_PRINTK=y
# CONFIG_DEBUG_ENTRY is not set
# CONFIG_CIO_INJECT is not set
# end of s390 Debugging
#
# Kernel Testing and Coverage
#
# CONFIG_KUNIT is not set
CONFIG_NOTIFIER_ERROR_INJECTION=y
CONFIG_NETDEV_NOTIFIER_ERROR_INJECT=y
CONFIG_FAULT_INJECTION=y
# CONFIG_FAILSLAB is not set
# CONFIG_FAIL_PAGE_ALLOC is not set
# CONFIG_FAULT_INJECTION_USERCOPY is not set
# CONFIG_FAIL_FUTEX is not set
# CONFIG_FAULT_INJECTION_DEBUG_FS is not set
CONFIG_ARCH_HAS_KCOV=y
CONFIG_CC_HAS_SANCOV_TRACE_PC=y
# CONFIG_KCOV is not set
CONFIG_RUNTIME_TESTING_MENU=y
# CONFIG_LKDTM is not set
# CONFIG_TEST_MIN_HEAP is not set
# CONFIG_TEST_DIV64 is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
CONFIG_RBTREE_TEST=y
# CONFIG_REED_SOLOMON_TEST is not set
CONFIG_INTERVAL_TREE_TEST=y
CONFIG_ATOMIC64_SELFTEST=y
CONFIG_TEST_HEXDUMP=y
CONFIG_STRING_SELFTEST=y
CONFIG_TEST_STRING_HELPERS=y
# CONFIG_TEST_STRSCPY is not set
CONFIG_TEST_KSTRTOX=y
CONFIG_TEST_PRINTF=y
# CONFIG_TEST_SCANF is not set
CONFIG_TEST_BITMAP=y
CONFIG_TEST_UUID=y
# CONFIG_TEST_XARRAY is not set
# CONFIG_TEST_OVERFLOW is not set
CONFIG_TEST_RHASHTABLE=y
# CONFIG_TEST_HASH is not set
# CONFIG_TEST_IDA is not set
# CONFIG_FIND_BIT_BENCHMARK is not set
# CONFIG_TEST_FIRMWARE is not set
CONFIG_TEST_SYSCTL=y
CONFIG_TEST_UDELAY=y
# CONFIG_TEST_MEMCAT_P is not set
# CONFIG_TEST_STACKINIT is not set
# CONFIG_TEST_MEMINIT is not set
# CONFIG_TEST_FREE_PAGES is not set
# end of Kernel Testing and Coverage
# end of Kernel hacking
^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2022-08-18 13:15 UTC | newest]
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2022-08-13 17:44 arch/s390/kvm/gaccess.c:859 guest_range_to_gpas() error: uninitialized symbol 'prot' kernel test robot
2022-08-15 7:23 ` Dan Carpenter
2022-08-15 7:23 ` Dan Carpenter
2022-08-17 10:30 ` Janis Schoetterl-Glausch
2022-08-17 10:30 ` Janis Schoetterl-Glausch
2022-08-17 14:38 ` Claudio Imbrenda
2022-08-17 14:38 ` Claudio Imbrenda
2022-08-18 7:45 ` Janosch Frank
2022-08-18 7:45 ` Janosch Frank
2022-08-18 13:14 ` Janis Schoetterl-Glausch
2022-08-18 13:14 ` Janis Schoetterl-Glausch
2022-08-14 14:13 kernel test robot
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