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2022-08-11RISC-V: Add modules to virtual kernel memory layout dumpXianting Tian1-0/+4
Modules always live before the kernel, MODULES_END is fixed but MODULES_VADDR isn't fixed, it depends on the kernel size. Let's add it to virtual kernel memory layout dump. As MODULES is only defined for CONFIG_64BIT, so we dump it when CONFIG_64BIT=y. eg, MODULES_VADDR - MODULES_END 0xffffffff01133000 - 0xffffffff80000000 Reviewed-by: Guo Ren <guoren@kernel.org> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com> Link: https://lore.kernel.org/r/20220811074150.3020189-5-xianting.tian@linux.alibaba.com Cc: stable@vger.kernel.org Fixes: 2bfc6cd81bd1 ("riscv: Move kernel mapping outside of linear mapping") Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-08-11riscv: traps_misaligned: do not duplicate stringifyKrzysztof Kozlowski1-5/+3
Use existing stringify macro from the kernel headers. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20220623112905.253157-1-krzysztof.kozlowski@linaro.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-08-11RISC-V: Fixup schedule out issue in machine_crash_shutdown()Xianting Tian1-4/+22
Current task of executing crash kexec will be schedule out when panic is triggered by RCU Stall, as it needs to wait rcu completion. It lead to inability to enter the crash system. The implementation of machine_crash_shutdown() is non-standard for RISC-V according to other Arch's implementation(eg, x86, arm64), we need to send IPI to stop secondary harts. [224521.877268] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [224521.883471] rcu: 0-...0: (3 GPs behind) idle=cfa/0/0x1 softirq=3968793/3968793 fqs=2495 [224521.891742] (detected by 2, t=5255 jiffies, g=60855593, q=328) [224521.897754] Task dump for CPU 0: [224521.901074] task:swapper/0 state:R running task stack: 0 pid: 0 ppid: 0 flags:0x00000008 [224521.911090] Call Trace: [224521.913638] [<ffffffe000c432de>] __schedule+0x208/0x5ea [224521.918957] Kernel panic - not syncing: RCU Stall [224521.923773] bad: scheduling from the idle thread! [224521.928571] CPU: 2 PID: 0 Comm: swapper/2 Kdump: loaded Tainted: G O 5.10.113-yocto-standard #1 [224521.938658] Call Trace: [224521.941200] [<ffffffe00020395c>] walk_stackframe+0x0/0xaa [224521.946689] [<ffffffe000c34f8e>] show_stack+0x32/0x3e [224521.951830] [<ffffffe000c39020>] dump_stack_lvl+0x7e/0xa2 [224521.957317] [<ffffffe000c39058>] dump_stack+0x14/0x1c [224521.962459] [<ffffffe000243884>] dequeue_task_idle+0x2c/0x40 [224521.968207] [<ffffffe000c434f4>] __schedule+0x41e/0x5ea [224521.973520] [<ffffffe000c43826>] schedule+0x34/0xe4 [224521.978487] [<ffffffe000c46cae>] schedule_timeout+0xc6/0x170 [224521.984234] [<ffffffe000c4491e>] wait_for_completion+0x98/0xf2 [224521.990157] [<ffffffe00026d9e2>] __wait_rcu_gp+0x148/0x14a [224521.995733] [<ffffffe0002761c4>] synchronize_rcu+0x5c/0x66 [224522.001307] [<ffffffe00026f1a6>] rcu_sync_enter+0x54/0xe6 [224522.006795] [<ffffffe00025a436>] percpu_down_write+0x32/0x11c [224522.012629] [<ffffffe000c4266a>] _cpu_down+0x92/0x21a [224522.017771] [<ffffffe000219a0a>] smp_shutdown_nonboot_cpus+0x90/0x118 [224522.024299] [<ffffffe00020701e>] machine_crash_shutdown+0x30/0x4a [224522.030483] [<ffffffe00029a3f8>] __crash_kexec+0x62/0xa6 [224522.035884] [<ffffffe000c3515e>] panic+0xfa/0x2b6 [224522.040678] [<ffffffe0002772be>] rcu_sched_clock_irq+0xc26/0xcb8 [224522.046774] [<ffffffe00027fc7a>] update_process_times+0x62/0x8a [224522.052785] [<ffffffe00028d522>] tick_sched_timer+0x9e/0x102 [224522.058533] [<ffffffe000280c3a>] __hrtimer_run_queues+0x16a/0x318 [224522.064716] [<ffffffe0002812ec>] hrtimer_interrupt+0xd4/0x228 [224522.070551] [<ffffffe0009a69b6>] riscv_timer_interrupt+0x3c/0x48 [224522.076646] [<ffffffe000268f8c>] handle_percpu_devid_irq+0xb0/0x24c [224522.083004] [<ffffffe00026428e>] __handle_domain_irq+0xa8/0x122 [224522.089014] [<ffffffe00062f954>] riscv_intc_irq+0x38/0x60 [224522.094501] [<ffffffe000201bd4>] ret_from_exception+0x0/0xc [224522.100161] [<ffffffe000c42146>] rcu_eqs_enter.constprop.0+0x8c/0xb8 With the patch, it can enter crash system when RCU Stall occur. Fixes: e53d28180d4d ("RISC-V: Add kdump support") Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com> Link: https://lore.kernel.org/r/20220811074150.3020189-4-xianting.tian@linux.alibaba.com Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-08-11RISC-V: Fixup get incorrect user mode PC for kernel mode regsXianting Tian1-1/+1
When use 'echo c > /proc/sysrq-trigger' to trigger kdump, riscv_crash_save_regs() will be called to save regs for vmcore, we found "epc" value 00ffffffa5537400 is not a valid kernel virtual address, but is a user virtual address. Other regs(eg, ra, sp, gp...) are correct kernel virtual address. Actually 0x00ffffffb0dd9400 is the user mode PC of 'PID: 113 Comm: sh', which is saved in the task's stack. [ 21.201701] CPU: 0 PID: 113 Comm: sh Kdump: loaded Not tainted 5.18.9 #45 [ 21.201979] Hardware name: riscv-virtio,qemu (DT) [ 21.202160] epc : 00ffffffa5537400 ra : ffffffff80088640 sp : ff20000010333b90 [ 21.202435] gp : ffffffff810dde38 tp : ff6000000226c200 t0 : ffffffff8032be7c [ 21.202707] t1 : 0720072007200720 t2 : 30203a7375746174 s0 : ff20000010333cf0 [ 21.202973] s1 : 0000000000000000 a0 : ff20000010333b98 a1 : 0000000000000001 [ 21.203243] a2 : 0000000000000010 a3 : 0000000000000000 a4 : 28c8f0aeffea4e00 [ 21.203519] a5 : 28c8f0aeffea4e00 a6 : 0000000000000009 a7 : ffffffff8035c9b8 [ 21.203794] s2 : ffffffff810df0a8 s3 : ffffffff810df718 s4 : ff20000010333b98 [ 21.204062] s5 : 0000000000000000 s6 : 0000000000000007 s7 : ffffffff80c4a468 [ 21.204331] s8 : 00ffffffef451410 s9 : 0000000000000007 s10: 00aaaaaac0510700 [ 21.204606] s11: 0000000000000001 t3 : ff60000001218f00 t4 : ff60000001218f00 [ 21.204876] t5 : ff60000001218000 t6 : ff200000103338b8 [ 21.205079] status: 0000000200000020 badaddr: 0000000000000000 cause: 0000000000000008 With the incorrect PC, the backtrace showed by crash tool as below, the first stack frame is abnormal, crash> bt PID: 113 TASK: ff60000002269600 CPU: 0 COMMAND: "sh" #0 [ff2000001039bb90] __efistub_.Ldebug_info0 at 00ffffffa5537400 <-- Abnormal #1 [ff2000001039bcf0] panic at ffffffff806578ba #2 [ff2000001039bd50] sysrq_reset_seq_param_set at ffffffff8038c030 #3 [ff2000001039bda0] __handle_sysrq at ffffffff8038c5f8 #4 [ff2000001039be00] write_sysrq_trigger at ffffffff8038cad8 #5 [ff2000001039be20] proc_reg_write at ffffffff801b7edc #6 [ff2000001039be40] vfs_write at ffffffff80152ba6 #7 [ff2000001039be80] ksys_write at ffffffff80152ece #8 [ff2000001039bed0] sys_write at ffffffff80152f46 With the patch, we can get current kernel mode PC, the output as below, [ 17.607658] CPU: 0 PID: 113 Comm: sh Kdump: loaded Not tainted 5.18.9 #42 [ 17.607937] Hardware name: riscv-virtio,qemu (DT) [ 17.608150] epc : ffffffff800078f8 ra : ffffffff8008862c sp : ff20000010333b90 [ 17.608441] gp : ffffffff810dde38 tp : ff6000000226c200 t0 : ffffffff8032be68 [ 17.608741] t1 : 0720072007200720 t2 : 666666666666663c s0 : ff20000010333cf0 [ 17.609025] s1 : 0000000000000000 a0 : ff20000010333b98 a1 : 0000000000000001 [ 17.609320] a2 : 0000000000000010 a3 : 0000000000000000 a4 : 0000000000000000 [ 17.609601] a5 : ff60000001c78000 a6 : 000000000000003c a7 : ffffffff8035c9a4 [ 17.609894] s2 : ffffffff810df0a8 s3 : ffffffff810df718 s4 : ff20000010333b98 [ 17.610186] s5 : 0000000000000000 s6 : 0000000000000007 s7 : ffffffff80c4a468 [ 17.610469] s8 : 00ffffffca281410 s9 : 0000000000000007 s10: 00aaaaaab5bb6700 [ 17.610755] s11: 0000000000000001 t3 : ff60000001218f00 t4 : ff60000001218f00 [ 17.611041] t5 : ff60000001218000 t6 : ff20000010333988 [ 17.611255] status: 0000000200000020 badaddr: 0000000000000000 cause: 0000000000000008 With the correct PC, the backtrace showed by crash tool as below, crash> bt PID: 113 TASK: ff6000000226c200 CPU: 0 COMMAND: "sh" #0 [ff20000010333b90] riscv_crash_save_regs at ffffffff800078f8 <--- Normal #1 [ff20000010333cf0] panic at ffffffff806578c6 #2 [ff20000010333d50] sysrq_reset_seq_param_set at ffffffff8038c03c #3 [ff20000010333da0] __handle_sysrq at ffffffff8038c604 #4 [ff20000010333e00] write_sysrq_trigger at ffffffff8038cae4 #5 [ff20000010333e20] proc_reg_write at ffffffff801b7ee8 #6 [ff20000010333e40] vfs_write at ffffffff80152bb2 #7 [ff20000010333e80] ksys_write at ffffffff80152eda #8 [ff20000010333ed0] sys_write at ffffffff80152f52 Fixes: e53d28180d4d ("RISC-V: Add kdump support") Co-developed-by: Guo Ren <guoren@kernel.org> Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com> Link: https://lore.kernel.org/r/20220811074150.3020189-3-xianting.tian@linux.alibaba.com Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-08-11RISC-V: kexec: Fixup use of smp_processor_id() in preemptible contextXianting Tian1-1/+1
Use __smp_processor_id() to avoid check the preemption context when CONFIG_DEBUG_PREEMPT enabled, as we will enter crash kernel and no return. Without the patch, [ 103.781044] sysrq: Trigger a crash [ 103.784625] Kernel panic - not syncing: sysrq triggered crash [ 103.837634] CPU1: off [ 103.889668] CPU2: off [ 103.933479] CPU3: off [ 103.939424] Starting crashdump kernel... [ 103.943442] BUG: using smp_processor_id() in preemptible [00000000] code: sh/346 [ 103.950884] caller is debug_smp_processor_id+0x1c/0x26 [ 103.956051] CPU: 0 PID: 346 Comm: sh Kdump: loaded Not tainted 5.10.113-00002-gce03f03bf4ec-dirty #149 [ 103.965355] Call Trace: [ 103.967805] [<ffffffe00020372a>] walk_stackframe+0x0/0xa2 [ 103.973206] [<ffffffe000bcf1f4>] show_stack+0x32/0x3e [ 103.978258] [<ffffffe000bd382a>] dump_stack_lvl+0x72/0x8e [ 103.983655] [<ffffffe000bd385a>] dump_stack+0x14/0x1c [ 103.988705] [<ffffffe000bdc8fe>] check_preemption_disabled+0x9e/0xaa [ 103.995057] [<ffffffe000bdc926>] debug_smp_processor_id+0x1c/0x26 [ 104.001150] [<ffffffe000206c64>] machine_kexec+0x22/0xd0 [ 104.006463] [<ffffffe000291a7e>] __crash_kexec+0x6a/0xa4 [ 104.011774] [<ffffffe000bcf3fa>] panic+0xfc/0x2b0 [ 104.016480] [<ffffffe000656ca4>] sysrq_reset_seq_param_set+0x0/0x70 [ 104.022745] [<ffffffe000657310>] __handle_sysrq+0x8c/0x154 [ 104.028229] [<ffffffe0006577e8>] write_sysrq_trigger+0x5a/0x6a [ 104.034061] [<ffffffe0003d90e0>] proc_reg_write+0x58/0xd4 [ 104.039459] [<ffffffe00036cff4>] vfs_write+0x7e/0x254 [ 104.044509] [<ffffffe00036d2f6>] ksys_write+0x58/0xbe [ 104.049558] [<ffffffe00036d36a>] sys_write+0xe/0x16 [ 104.054434] [<ffffffe000201b9a>] ret_from_syscall+0x0/0x2 [ 104.067863] Will call new kernel at ecc00000 from hart id 0 [ 104.074939] FDT image at fc5ee000 [ 104.079523] Bye... With the patch we can got clear output, [ 67.740553] sysrq: Trigger a crash [ 67.744166] Kernel panic - not syncing: sysrq triggered crash [ 67.809123] CPU1: off [ 67.865210] CPU2: off [ 67.909075] CPU3: off [ 67.919123] Starting crashdump kernel... [ 67.924900] Will call new kernel at ecc00000 from hart id 0 [ 67.932045] FDT image at fc5ee000 [ 67.935560] Bye... Fixes: 0e105f1d0037 ("riscv: use hart id instead of cpu id on machine_kexec") Reviewed-by: Guo Ren <guoren@kernel.org> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Atish Patra <atishp@rivosinc.com> Signed-off-by: Xianting Tian <xianting.tian@linux.alibaba.com> Link: https://lore.kernel.org/r/20220811074150.3020189-2-xianting.tian@linux.alibaba.com Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-08-11arch/riscv: add Zihintpause supportDao Lu5-3/+29
Implement support for the ZiHintPause extension. The PAUSE instruction is a HINT that indicates the current hart’s rate of instruction retirement should be temporarily reduced or paused. Reviewed-by: Heiko Stuebner <heiko@sntech.de> Tested-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Dao Lu <daolu@rivosinc.com> [Palmer: Some minor merge conflicts.] Link: https://lore.kernel.org/all/20220620201530.3929352-1-daolu@rivosinc.com/ Link: https://lore.kernel.org/all/20220811053356.17375-1-palmer@rivosinc.com/ Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-08-10riscv: lib: uaccess: fix CSR_STATUS SR_SUM bitChen Lifu1-2/+2
Since commit 5d8544e2d007 ("RISC-V: Generic library routines and assembly") and commit ebcbd75e3962 ("riscv: Fix the bug in memory access fixup code"), if __clear_user and __copy_user return from an fixup branch, CSR_STATUS SR_SUM bit will be set, it is a vulnerability, so that S-mode memory accesses to pages that are accessible by U-mode will success. Disable S-mode access to U-mode memory should clear SR_SUM bit. Fixes: 5d8544e2d007 ("RISC-V: Generic library routines and assembly") Fixes: ebcbd75e3962 ("riscv: Fix the bug in memory access fixup code") Signed-off-by: Chen Lifu <chenlifu@huawei.com> Reviewed-by: Ben Dooks <ben.dooks@codethink.co.uk> Link: https://lore.kernel.org/r/20220615014714.1650349-1-chenlifu@huawei.com Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-08-06Revert "iommu/dma: Add config for PCI SAC address trick"Linus Torvalds2-27/+1
This reverts commit 4bf7fda4dce22214c70c49960b1b6438e6260b67. It turns out that it was hopelessly naive to think that this would work, considering that we've always done this. The first machine I actually tested this on broke at bootup, getting to Reached target cryptsetup.target - Local Encrypted Volumes. and then hanging. It's unclear what actually fails, since there's a lot else going on around that time (eg amdgpu probing also happens around that same time, but it could be some other random init thing that didn't complete earlier and just caused the boot to hang at that point). The expectations that we should default to some unsafe and untested mode seems entirely unfounded, and the belief that this wouldn't affect modern systems is clearly entirely false. The machine in question is about two years old, so it's not exactly shiny, but it's also not some dusty old museum piece PDP-11 in a closet. Cc: Robin Murphy <robin.murphy@arm.com> Cc: Christoph Hellwig <hch@lst.de> Cc: John Garry <john.garry@huawei.com> Cc: Joerg Roedel <jroedel@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-08-04rv: Unlock on error path in rv_unregister_reactor()Dan Carpenter1-2/+4
Unlock the "rv_interface_lock" mutex before returning. Link: https://lkml.kernel.org/r/YuvYzNfGMgV+PIhd@kili Fixes: 04acadcb4453 ("rv: Add runtime reactors interface") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
2022-08-04s390/dasd: Establish DMA alignmentEric Farman2-0/+2
linux-next commit bf8d08532bc1 ("iomap: add support for dma aligned direct-io") changes the alignment requirement to come from the block device rather than the block size, and the default alignment requirement is 512-byte boundaries. Since DASD I/O has page alignments for IDAW/TIDAW requests, let's override this value to restore the expected behavior. Make this change for both ECKD and DIAG disciplines, as they both would fall into this category. Leave FBA alone, since it is always comprised of 512-byte blocks. Signed-off-by: Eric Farman <farman@linux.ibm.com> Acked-by: Halil Pasic <pasic@linux.ibm.com> Reviewed-by: Stefan Haberland <sth@linux.ibm.com> Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Link: https://lore.kernel.org/r/20220804213926.3361574-3-sth@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-08-04s390/dasd: drop unexpected word 'for' in commentsJiang Jian1-1/+1
there is an unexpected word 'for' in the comments that need to be dropped file - drivers/s390/block/dasd.c line - 1728 /* check for for attention message */ changed to: /* check for attention message */ Signed-off-by: Jiang Jian <jiangjian@cdjrlc.com> Link: https://lore.kernel.org/r/20220623102114.33249-1-jiangjian@cdjrlc.com Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Link: https://lore.kernel.org/r/20220804213926.3361574-2-sth@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-08-04dm verity: have verify_wq use WQ_HIGHPRI if "try_verify_in_tasklet"Mike Snitzer1-1/+11
Allow verify_wq to preempt softirq since verification in tasklet will fall-back to using it for error handling (or if the bufio cache doesn't have required hashes). Suggested-by: Nathan Huckleberry <nhuck@google.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2022-08-04drm/amd/amdgpu: fix build failure due to implicit declarationSudip Mukherjee1-0/+1
The builds for alpha and mips allmodconfig fails with the error: drivers/gpu/drm/amd/amdgpu/psp_v13_0.c:534:23: error: implicit declaration of function 'vmalloc'; did you mean 'kvmalloc'? [-Werror=implicit-function-declaration] drivers/gpu/drm/amd/amdgpu/psp_v13_0.c:534:21: error: assignment to 'void *' from 'int' makes pointer from integer without a cast [-Werror=int-conversion] drivers/gpu/drm/amd/amdgpu/psp_v13_0.c:545:33: error: implicit declaration of function 'vfree'; did you mean 'kvfree'? [-Werror=implicit-function-declaration] Add the header file for vmalloc and vfree. Reported-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-08-04usb: cdns3: Don't use priv_dev uninitialized in cdns3_gadget_ep_enable()Nathan Chancellor1-4/+8
Clang warns: drivers/usb/cdns3/cdns3-gadget.c:2290:11: error: variable 'priv_dev' is uninitialized when used here [-Werror,-Wuninitialized] dev_dbg(priv_dev->dev, "usbss: invalid parameters\n"); ^~~~~~~~ include/linux/dev_printk.h:155:18: note: expanded from macro 'dev_dbg' dynamic_dev_dbg(dev, dev_fmt(fmt), ##__VA_ARGS__) ^~~ include/linux/dynamic_debug.h:167:7: note: expanded from macro 'dynamic_dev_dbg' dev, fmt, ##__VA_ARGS__) ^~~ include/linux/dynamic_debug.h:152:56: note: expanded from macro '_dynamic_func_call' __dynamic_func_call(__UNIQUE_ID(ddebug), fmt, func, ##__VA_ARGS__) ^~~~~~~~~~~ include/linux/dynamic_debug.h:134:15: note: expanded from macro '__dynamic_func_call' func(&id, ##__VA_ARGS__); \ ^~~~~~~~~~~ drivers/usb/cdns3/cdns3-gadget.c:2278:31: note: initialize the variable 'priv_dev' to silence this warning struct cdns3_device *priv_dev; ^ = NULL 1 error generated. The priv_dev assignment was moved below the if statement to avoid potentially dereferencing ep before it was checked but priv_dev is used in the dev_dbg() call. To fix this, move the priv_dev and comp_desc assignments back to their original spot and hoist the ep check above those assignments with a call to pr_debug() instead of dev_dbg(). Fixes: c3ffc9c4ca44 ("usb: cdns3: change place of 'priv_ep' assignment in cdns3_gadget_ep_dequeue(), cdns3_gadget_ep_enable()") Link: https://github.com/ClangBuiltLinux/linux/issues/1680 Signed-off-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-08-04dm verity: remove WQ_CPU_INTENSIVE flag since using WQ_UNBOUNDMike Snitzer1-1/+1
The documentation [1] says that WQ_CPU_INTENSIVE is "meaningless" for unbound wq. So remove WQ_CPU_INTENSIVE from the verify_wq allocation. 1. https://www.kernel.org/doc/html/latest/core-api/workqueue.html#flags Suggested-by: Maksym Planeta <mplaneta@os.inf.tu-dresden.de> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2022-08-04dm verity: only copy bvec_iter in verity_verify_io if in_taskletMike Snitzer1-9/+16
Avoid extra bvec_iter copy unless it is needed to allow retrying verification, that failed from a tasklet, from a workqueue. Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2022-08-04dm verity: optimize verity_verify_io if FEC not configuredMike Snitzer1-1/+8
Only declare and copy bvec_iter if CONFIG_DM_VERITY_FEC is defined and FEC enabled for the verity device. Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2022-08-04dm verity: conditionally enable branching for "try_verify_in_tasklet"Mike Snitzer1-5/+14
Use jump_label to limit the need for branching unless the optional "try_verify_in_tasklet" feature is used. Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2022-08-04dm bufio: conditionally enable branching for DM_BUFIO_CLIENT_NO_SLEEPMike Snitzer1-4/+11
Use jump_label to limit the need for branching unless the optional DM_BUFIO_CLIENT_NO_SLEEP is used. Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2022-08-04dm verity: allow optional args to alter primary args handlingMike Snitzer1-8/+24
The previous commit ("dm verity: Add optional "try_verify_in_tasklet" feature") imposed that CRYPTO_ALG_ASYNC mask be used even if the optional "try_verify_in_tasklet" feature was not specified. This was because verity_parse_opt_args() was called after handling the primary args (due to it having data dependencies on having first parsed all primary args). Enhance verity_ctr() so that simple optional args, that don't have a data dependency on primary args parsing, can alter how the primary args are handled. In practice this means verity_parse_opt_args() gets called twice. First with the new 'only_modifier_opts' arg set to true, then again with it set to false _after_ parsing all primary args. This allows the v->use_tasklet flag to be properly set and then used when verity_ctr() parses the primary args and then calls crypto_alloc_ahash() with CRYPTO_ALG_ASYNC conditionally set. Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2022-08-04dm verity: Add optional "try_verify_in_tasklet" featureNathan Huckleberry2-18/+91
Using tasklets for disk verification can reduce IO latency. When there are accelerated hash instructions it is often better to compute the hash immediately using a tasklet rather than deferring verification to a work-queue. This reduces time spent waiting to schedule work-queue jobs, but requires spending slightly more time in interrupt context. If the dm-bufio cache does not have the required hashes we fallback to the work-queue implementation. FEC is only possible using work-queue because code to support the FEC feature may sleep. The following shows a speed comparison of random reads on a dm-verity device. The dm-verity device uses a 1G ramdisk for data and a 1G ramdisk for hashes. One test was run using tasklets and one test was run using the existing work-queue solution. Both tests were run when the dm-bufio cache was hot. The tasklet implementation performs significantly better since there is no time spent waiting for work-queue jobs to be scheduled. READ: bw=181MiB/s (190MB/s), 181MiB/s-181MiB/s (190MB/s-190MB/s), io=512MiB (537MB), run=2827-2827msec READ: bw=23.6MiB/s (24.8MB/s), 23.6MiB/s-23.6MiB/s (24.8MB/s-24.8MB/s), io=512MiB (537MB), run=21688-21688msec Signed-off-by: Nathan Huckleberry <nhuck@google.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2022-08-04drm/amd/display: restore code for plane with no modifiersDave Airlie1-0/+3
When this file was split in commit 5d945cbcd4b1 ("drm/amd/display: Create a file dedicated to planes") this chunk seemed to get dropped. Linus noticed on this rx580 and I've reproduced on FIJI which makes sense as these are pre-modifier GPUs. With this applied, I get gdm back. Fixes: 5d945cbcd4b1 ("drm/amd/display: Create a file dedicated to planes") Signed-off-by: Dave Airlie <airlied@redhat.com> Reported-and-tested-by: Linus Torvalds <torvalds@linux-foundation.org> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-08-03riscv: implement cache-management errata for T-Head SoCsHeiko Stuebner3-5/+74
The T-Head C906 and C910 implement a scheme for handling cache operations different from the generic Zicbom extension. Add an errata for it next to the generic dma coherency ops. Reviewed-by: Samuel Holland <samuel@sholland.org> Tested-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Guo Ren <guoren@kernel.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20220706231536.2041855-5-heiko@sntech.de Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-08-03tpm: Add check for Failure mode for TPM2 modulesMårten Lindahl1-0/+6
In commit 0aa698787aa2 ("tpm: Add Upgrade/Reduced mode support for TPM2 modules") it was said that: "If the TPM is in Failure mode, it will successfully respond to both tpm2_do_selftest() and tpm2_startup() calls. Although, will fail to answer to tpm2_get_cc_attrs_tbl(). Use this fact to conclude that TPM is in Failure mode." But a check was never added in the commit when calling tpm2_get_cc_attrs_tbl() to conclude that the TPM is in Failure mode. This commit corrects this by adding a check. Fixes: 0aa698787aa2 ("tpm: Add Upgrade/Reduced mode support for TPM2 modules") Cc: stable@vger.kernel.org # v5.17+ Signed-off-by: Mårten Lindahl <marten.lindahl@axis.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2022-08-03tpm: eventlog: Fix section mismatch for DEBUG_SECTION_MISMATCHHuacai Chen1-1/+1
If DEBUG_SECTION_MISMATCH enabled, __calc_tpm2_event_size() will not be inlined, this cause section mismatch like this: WARNING: modpost: vmlinux.o(.text.unlikely+0xe30c): Section mismatch in reference from the variable L0 to the function .init.text:early_ioremap() The function L0() references the function __init early_memremap(). This is often because L0 lacks a __init annotation or the annotation of early_ioremap is wrong. Fix it by using __always_inline instead of inline for the called-once function __calc_tpm2_event_size(). Fixes: 44038bc514a2 ("tpm: Abstract crypto agile event size calculations") Cc: stable@vger.kernel.org # v5.3 Reported-by: WANG Xuerui <git@xen0n.name> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2022-08-03tpm: fix platform_no_drv_owner.cocci warningYang Li1-1/+0
Eliminate the following coccicheck warning: ./drivers/char/tpm/tpm_tis_i2c.c:379:3-8: No need to set .owner here. The core will do it. Remove .owner field if calls are used which set it automatically Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2022-08-03KEYS: asymmetric: enforce SM2 signature use pkey algoTianjia Zhang1-2/+5
The signature verification of SM2 needs to add the Za value and recalculate sig->digest, which requires the detection of the pkey_algo in public_key_verify_signature(). As Eric Biggers said, the pkey_algo field in sig is attacker-controlled and should be use pkey->pkey_algo instead of sig->pkey_algo, and secondly, if sig->pkey_algo is NULL, it will also cause signature verification failure. The software_key_determine_akcipher() already forces the algorithms are matched, so the SM3 algorithm is enforced in the SM2 signature, although this has been checked, we still avoid using any algorithm information in the signature as input. Fixes: 215525639631 ("X.509: support OSCCA SM2-with-SM3 certificate verification") Reported-by: Eric Biggers <ebiggers@google.com> Cc: stable@vger.kernel.org # v5.10+ Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2022-08-03pkcs7: support EC-RDSA/streebog in SignerInfoElvira Khabirova1-0/+11
Allow using EC-RDSA/streebog in pkcs7 certificates in a similar way to how it's done in the x509 parser. This is needed e.g. for loading kernel modules signed with EC-RDSA. Signed-off-by: Elvira Khabirova <e.khabirova@omp.ru> Reviewed-by: Vitaly Chikunov <vt@altlinux.org> Reviewed-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2022-08-03pkcs7: parser support SM2 and SM3 algorithms combinationTianjia Zhang1-0/+7
Support parsing the message signature of the SM2 and SM3 algorithm combination. This group of algorithms has been well supported. One of the main users is module signature verification. Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com> Reviewed-by: Vitaly Chikunov <vt@altlinux.org> Reviewed-by: Stefan Berger <stefanb@linux.ibm.com> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2022-08-03sign-file: Fix confusing error messagesTianjia Zhang1-1/+1
When an error occurs, use errx() instead of err() to display the error message, because openssl has its own error record. When an error occurs, errno will not be changed, while err() displays the errno error message. It will cause confusion. For example, when CMS_add1_signer() fails, the following message will appear: sign-file: CMS_add1_signer: Success errx() ignores errno and does not cause such issue. Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2022-08-03X.509: Support parsing certificate using SM2 algorithmTianjia Zhang1-0/+3
The SM2-with-SM3 certificate generated by latest openssl no longer reuses the OID_id_ecPublicKey, but directly uses OID_sm2. This patch supports this type of x509 certificate parsing. Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2022-08-03tpm: Add tpm_tis_i2c backend for tpm_tis_coreAlexander Steffen3-0/+404
Implement the TCG I2C Interface driver, as specified in the TCG PC Client Platform TPM Profile (PTP) specification for TPM 2.0 v1.04 revision 14, section 8, I2C Interface Definition. This driver supports Guard Times. That is, if required by the TPM, the driver has to wait by a vendor-specific time after each I2C read/write. The specific time is read from the TPM_I2C_INTERFACE_CAPABILITY register. Unfortunately, the TCG specified almost but not quite compatible register addresses. Therefore, the TIS register addresses need to be mapped to I2C ones. The locality is stripped because for now, only locality 0 is supported. Add a sanity check to I2C reads of e.g. TPM_ACCESS and TPM_STS. This is to detect communication errors and issues due to non-standard behaviour (E.g. the clock stretching quirk in the BCM2835, see 4dbfb5f4401f). In case the sanity check fails, attempt a retry. Co-developed-by: Johannes Holland <johannes.holland@infineon.com> Signed-off-by: Johannes Holland <johannes.holland@infineon.com> Co-developed-by: Amir Mizinski <amirmizi6@gmail.com> Signed-off-by: Amir Mizinski <amirmizi6@gmail.com> Signed-off-by: Alexander Steffen <Alexander.Steffen@infineon.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2022-08-03tpm: Add tpm_tis_verify_crc to the tpm_tis_phy_ops protocol layerAlexander Steffen2-0/+24
Some TPMs, e.g. those implementing the I2C variant of TIS, can verify data transfers to/from the FIFO with a CRC. The CRC is calculated over the entirety of the FIFO register. Since the phy_ops layer is not aware when the core layer is done reading/writing the FIFO, CRC verification must be triggered from the core layer. To this end, add an optional phy_ops API call. Co-developed-by: Johannes Holland <johannes.holland@infineon.com> Signed-off-by: Johannes Holland <johannes.holland@infineon.com> Signed-off-by: Alexander Steffen <Alexander.Steffen@infineon.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2022-08-03dt-bindings: trivial-devices: Add Infineon SLB9673 TPMAlexander Steffen1-0/+2
Initial device to be supported by the upcoming tpm_tis_i2c driver. More to be added later. Signed-off-by: Alexander Steffen <Alexander.Steffen@infineon.com> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2022-08-03tpm: Add upgrade/reduced mode support for TPM1.2 modulesStefan Mahnke-Hartmann2-1/+7
In case a TPM in failure mode is detected, the TPM should be accessible through a transparent communication channel for analysing purposes (e.g. TPM_GetTestResult) or a field upgrade. Since a TPM in failure mode has similar reduced functionality as in field upgrade mode, the flag TPM_CHIP_FLAG_FIRMWARE_UPGRADE is also valid. As described in TCG TPM Main Part1 Design Principles, Revision 116, chapter 9.2.1. the TPM also allows an update function in case a TPM is in failure mode. If the TPM in failure mode is detected, the function tpm1_auto_startup() sets TPM_CHIP_FLAG_FIRMWARE_UPGRADE flag, which is used later during driver initialization/deinitialization to disable functionality which makes no sense or will fail in the current TPM state. The following functionality is affected: * Do not register TPM as a hwrng * Do not get pcr allocation * Do not register sysfs entries which provide information impossible to obtain in limited mode Signed-off-by: Stefan Mahnke-Hartmann <stefan.mahnke-hartmann@infineon.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2022-08-03tools/testing/selftests/vm/hmm-tests.c: fix buildAndrew Morton1-1/+1
hmm-tests.c:1607:42: error: 'HMM_DMIRROR_MIGRATE' undeclared (first use in this function); did you mean 'HMM_DMIRROR_WRITE'? Fixes: f6c3e1ae0114cd0 ("mm/hmm: add a test for cross device private faults") Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Ralph Campbell <rcampbell@nvidia.com> Cc: Alistair Popple <apopple@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-08-03ALSA: hda/realtek: Add quirk for HP Spectre x360 15-eb0xxxIvan Hasenkampf1-0/+2
Fixes speaker output on HP Spectre x360 15-eb0xxx [ re-sorted in SSID order by tiwai ] Signed-off-by: Ivan Hasenkampf <ivan.hasenkampf@gmail.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20220803164001.290394-1-ivan.hasenkampf@gmail.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-08-03perf stat: Refactor __run_perf_stat() common codeAdrián Herrera Arcila1-16/+9
This extracts common code from the branches of the forks if-then-else. enable_counters(), which was at the beginning of both branches of the conditional, is now unconditional; evlist__start_workload() is extracted to a different if, which enables making the common clocking code unconditional. Reviewed-by: Leo Yan <leo.yan@linaro.org> Signed-off-by: Adrián Herrera Arcila <adrian.herrera@arm.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <songliubraving@fb.com> Link: https://lore.kernel.org/r/20220729161244.10522-1-adrian.herrera@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-03video:backlight: remove reference to AVR32 architecture in ltv350qvHans-Christian Noren Egtvedt1-2/+1
The AVR32 architecture does no longer exist in the Linux kernel, hence remove a reference to also non-existing Linux BSP CD from Atmel. Signed-off-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
2022-08-03video: remove support for non-existing atmel,at32ap-lcdc in atmel_lcdfbHans-Christian Noren Egtvedt1-1/+0
The AVR32 architecture has been removed from the kernel in commit 26202873bb51fafdaa51be3e8de7aab9beb49f70, hence clean out the atmel,at32ap-lcdc parts in the atmel_lcdfb.c video driver. AVR32 architecture never supported device tree, hence this code was not used by anybody. Signed-off-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
2022-08-03usb:udc: remove reference to AVR32 architecture in Atmel USBA KconfigHans-Christian Noren Egtvedt1-2/+2
The AVR32 architecture does no longer exist in the Linux kernel, hence remove a reference to it in Kconfig help text to avoid confusion. Signed-off-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
2022-08-03sound:spi: remove reference to AVR32 in Atmel AT73C213 DAC driverHans-Christian Noren Egtvedt1-1/+1
The AVR32 architecture does no longer exist in the Linux kernel, hence remove a reference to it in Kconfig help text to avoid confusion. Signed-off-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
2022-08-03net: remove cdns,at32ap7000-macb device tree entryHans-Christian Noren Egtvedt2-3/+1
The AVR32 architecture has been removed from the kernel in commit 26202873bb51fafdaa51be3e8de7aab9beb49f70, hence clean out the cdns,at32ap7000-macb compatible entry in Cadence macb Ethernet driver. AVR32 architecture never supported device tree, hence this code was not used by anybody. Updated documentation to match the default entry, no users of cdns,at32ap7000-macb in the kernel tree. Signed-off-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
2022-08-03misc: update maintainer email address and description for atmel-sscHans-Christian Noren Egtvedt1-2/+2
I have changed my overall maintainer email address to the samfundet.no domain, hence update the atmel-ssc module to reflect that. Also remove the AVR32 reference, since the AVR32 architecture no longer exist in the Linux kernel. Signed-off-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
2022-08-03mfd: remove reference to AVR32 architecture in atmel-smc.cHans-Christian Noren Egtvedt1-2/+2
The AVR32 architecture does no longer exist in the Linux kernel, hence remove a reference to it in comments to avoid confusion. Signed-off-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
2022-08-03dma:dw: remove reference to AVR32 architecture in core.cHans-Christian Noren Egtvedt1-3/+0
The AVR32 architecture does no longer exist in the Linux kernel, hence remove a reference to it in comments to avoid confusion. Signed-off-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
2022-08-03MAINTAINERS: Use Lee Jones' kernel.org address for Backlight submissionsLee Jones1-1/+1
Going forward, I'll be using my kernel.org for upstream work. Signed-off-by: Lee Jones <lee.jones@linaro.org> Acked-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Lee Jones <lee@kernel.org>
2022-08-02doc: sfp-phylink: Fix a broken referenceChristophe JAILLET1-3/+3
The commit in Fixes: has changed a .txt file into a .yaml file. Update the documentation accordingly. While at it add some `` around some file names to improve the output. Fixes: 70991f1e6858 ("dt-bindings: net: convert sff,sfp to dtschema") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/be3c7e87ca7f027703247eccfe000b8e34805094.1659247114.git.christophe.jaillet@wanadoo.fr Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-02ext4: add ioctls to get/set the ext4 superblock uuidJeremy Bongio2-0/+94
This fixes a race between changing the ext4 superblock uuid and operations like mounting, resizing, changing features, etc. Reviewed-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Jeremy Bongio <bongiojp@gmail.com> Link: https://lore.kernel.org/r/20220721224422.438351-1-bongiojp@gmail.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2022-08-02ext4: avoid resizing to a partial cluster sizeKiselev, Oleg1-0/+10
This patch avoids an attempt to resize the filesystem to an unaligned cluster boundary. An online resize to a size that is not integral to cluster size results in the last iteration attempting to grow the fs by a negative amount, which trips a BUG_ON and leaves the fs with a corrupted in-memory superblock. Signed-off-by: Oleg Kiselev <okiselev@amazon.com> Link: https://lore.kernel.org/r/0E92A0AB-4F16-4F1A-94B7-702CC6504FDE@amazon.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>