[PW_SID:1029060] RISC-V: Add PARAVIRT_SPINLOCKS support #1166

linux-riscv-bot · 2025-12-01T01:16:45Z

PR for series 1029060 applied to workflow__riscv__fixes

Name: RISC-V: Add PARAVIRT_SPINLOCKS support
URL: https://patchwork.kernel.org/project/linux-riscv/list/?series=1029060
Version: 3

Add the files functions needed to support the SBI PVLOCK (paravirt qspinlock kick_cpu) extension. Implement kvm_sbi_ext_pvlock_kick_- cpu(), and we only need to call the kvm_vcpu_kick() and bring target_vcpu from the halt state. Reviewed-by: Leonardo Bras <[email protected]> Signed-off-by: Guo Ren (Alibaba DAMO Academy) <[email protected]> Signed-off-by: Linux RISC-V bot <[email protected]>

Add an unfair qspinlock virtualization-friendly frontend, by halting the virtual CPU rather than spinning. Using static_call to switch between: native_queued_spin_lock_slowpath() __pv_queued_spin_lock_slowpath() native_queued_spin_unlock() __pv_queued_spin_unlock() Add the pv_wait & pv_kick implementations. Reviewed-by: Leonardo Bras <[email protected]> Signed-off-by: Guo Ren (Alibaba DAMO Academy) <[email protected]> Signed-off-by: Linux RISC-V bot <[email protected]>

Add trace point for pv_kick&wait, here is the output: ls /sys/kernel/debug/tracing/events/paravirt/ enable filter pv_kick pv_wait cat /sys/kernel/debug/tracing/trace entries-in-buffer/entries-written: 33927/33927 #P:12 _-----=> irqs-off/BH-disabled / _----=> need-resched | / _---=> hardirq/softirq || / _--=> preempt-depth ||| / _-=> migrate-disable |||| / delay TASK-PID CPU# ||||| TIMESTAMP FUNCTION | | | ||||| | | sh-100 [001] d..2. 28.312294: pv_wait: cpu 1 out of wfi <idle>-0 [000] d.h4. 28.322030: pv_kick: cpu 0 kick target cpu 1 sh-100 [001] d..2. 30.982631: pv_wait: cpu 1 out of wfi <idle>-0 [000] d.h4. 30.993289: pv_kick: cpu 0 kick target cpu 1 sh-100 [002] d..2. 44.987573: pv_wait: cpu 2 out of wfi <idle>-0 [000] d.h4. 44.989000: pv_kick: cpu 0 kick target cpu 2 <idle>-0 [003] d.s3. 51.593978: pv_kick: cpu 3 kick target cpu 4 rcu_sched-15 [004] d..2. 51.595192: pv_wait: cpu 4 out of wfi lock_torture_wr-115 [004] ...2. 52.656482: pv_kick: cpu 4 kick target cpu 2 lock_torture_wr-113 [002] d..2. 52.659146: pv_wait: cpu 2 out of wfi lock_torture_wr-114 [008] d..2. 52.659507: pv_wait: cpu 8 out of wfi lock_torture_wr-114 [008] d..2. 52.663503: pv_wait: cpu 8 out of wfi lock_torture_wr-113 [002] ...2. 52.666128: pv_kick: cpu 2 kick target cpu 8 lock_torture_wr-114 [008] d..2. 52.667261: pv_wait: cpu 8 out of wfi lock_torture_wr-114 [009] .n.2. 53.141515: pv_kick: cpu 9 kick target cpu 11 lock_torture_wr-113 [002] d..2. 53.143339: pv_wait: cpu 2 out of wfi lock_torture_wr-116 [007] d..2. 53.143412: pv_wait: cpu 7 out of wfi lock_torture_wr-118 [000] d..2. 53.143457: pv_wait: cpu 0 out of wfi lock_torture_wr-115 [008] d..2. 53.143481: pv_wait: cpu 8 out of wfi lock_torture_wr-117 [011] d..2. 53.143522: pv_wait: cpu 11 out of wfi lock_torture_wr-117 [011] ...2. 53.143987: pv_kick: cpu 11 kick target cpu 8 lock_torture_wr-115 [008] ...2. 53.144269: pv_kick: cpu 8 kick target cpu 7 Reviewed-by: Leonardo Bras <[email protected]> Signed-off-by: Guo Ren (Alibaba DAMO Academy) <[email protected]> Signed-off-by: Linux RISC-V bot <[email protected]>

The VM guests should fall back to a Test-and-Set spinlock when PARAVIRT_SPINLOCKS disabled, because fair locks have horrible lock 'holder' preemption issues. The virt_spin_lock_key would shortcut for the queued_spin_lock_- slowpath() function that allow virt_spin_lock to hijack it. ref: 43b3f02 ("locking/qspinlock/x86: Fix performance regression under unaccelerated VMs"). Add a static key controlling whether virt_spin_lock() should be called or not. Add nopvspin support as x86. Signed-off-by: Guo Ren (Alibaba DAMO Academy) <[email protected]> Signed-off-by: Linux RISC-V bot <[email protected]>

linux-riscv-bot · 2025-12-01T01:22:29Z

Patch 1: "[RFC,V3,1/4] RISC-V: paravirt: Add pvqspinlock KVM backend"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 112.72 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T01:42:29Z

Patch 1: "[RFC,V3,1/4] RISC-V: paravirt: Add pvqspinlock KVM backend"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 1198.35 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T02:10:14Z

Patch 1: "[RFC,V3,1/4] RISC-V: paravirt: Add pvqspinlock KVM backend"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1663.47 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T02:10:40Z

Patch 1: "[RFC,V3,1/4] RISC-V: paravirt: Add pvqspinlock KVM backend"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 24.53 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T02:11:07Z

Patch 1: "[RFC,V3,1/4] RISC-V: paravirt: Add pvqspinlock KVM backend"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 25.78 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T02:11:12Z

Patch 1: "[RFC,V3,1/4] RISC-V: paravirt: Add pvqspinlock KVM backend"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 3.54 seconds
Result: WARNING
Output:

WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#99: 
new file mode 100644

total: 0 errors, 1 warnings, 0 checks, 105 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit 15eef8e23cb2 ("RISC-V: paravirt: Add pvqspinlock KVM backend") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 1 warnings, 0 checks, 105 lines checked
WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?

linux-riscv-bot · 2025-12-01T02:12:32Z

Patch 1: "[RFC,V3,1/4] RISC-V: paravirt: Add pvqspinlock KVM backend"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 78.45 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T02:12:33Z

Patch 1: "[RFC,V3,1/4] RISC-V: paravirt: Add pvqspinlock KVM backend"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.23 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T02:12:36Z

Patch 1: "[RFC,V3,1/4] RISC-V: paravirt: Add pvqspinlock KVM backend"
kdoc
Desc: Detects for kdoc errors
Duration: 0.99 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T02:12:38Z

Patch 1: "[RFC,V3,1/4] RISC-V: paravirt: Add pvqspinlock KVM backend"
module-param
Desc: Detect module_param changes
Duration: 0.25 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T02:12:39Z

Patch 1: "[RFC,V3,1/4] RISC-V: paravirt: Add pvqspinlock KVM backend"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.22 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T02:12:41Z

Patch 1: "[RFC,V3,1/4] RISC-V: paravirt: Add pvqspinlock KVM backend"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.29 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T02:14:47Z

Patch 2: "[RFC,V3,2/4] RISC-V: paravirt: Add pvqspinlock frontend"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 111.08 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T02:54:13Z

Patch 2: "[RFC,V3,2/4] RISC-V: paravirt: Add pvqspinlock frontend"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 2364.46 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T03:44:24Z

Patch 2: "[RFC,V3,2/4] RISC-V: paravirt: Add pvqspinlock frontend"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 3009.49 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T03:44:50Z

Patch 2: "[RFC,V3,2/4] RISC-V: paravirt: Add pvqspinlock frontend"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 24.35 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T03:45:17Z

Patch 2: "[RFC,V3,2/4] RISC-V: paravirt: Add pvqspinlock frontend"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 25.37 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T03:45:22Z

Patch 2: "[RFC,V3,2/4] RISC-V: paravirt: Add pvqspinlock frontend"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 3.80 seconds
Result: WARNING
Output:

WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#66: 
new file mode 100644

CHECK: Prefer using the BIT macro
#85: FILE: arch/riscv/include/asm/qspinlock.h:15:
+#define SPIN_THRESHOLD		(1 << 15)

WARNING: void function return statements are not generally useful
#172: FILE: arch/riscv/kernel/qspinlock_paravirt.c:17:
+	return;
+}

WARNING: memory barrier without comment
#192: FILE: arch/riscv/kernel/qspinlock_paravirt.c:37:
+	smp_store_release(&lock->locked, 0);

total: 0 errors, 3 warnings, 1 checks, 172 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit d3d80d6ed7e6 ("RISC-V: paravirt: Add pvqspinlock frontend") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 3 warnings, 1 checks, 172 lines checked
CHECK: Prefer using the BIT macro
WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
WARNING: memory barrier without comment
WARNING: void function return statements are not generally useful

linux-riscv-bot · 2025-12-01T03:46:42Z

Patch 2: "[RFC,V3,2/4] RISC-V: paravirt: Add pvqspinlock frontend"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 78.18 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T03:46:44Z

Patch 2: "[RFC,V3,2/4] RISC-V: paravirt: Add pvqspinlock frontend"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.69 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T03:46:47Z

Patch 2: "[RFC,V3,2/4] RISC-V: paravirt: Add pvqspinlock frontend"
kdoc
Desc: Detects for kdoc errors
Duration: 0.99 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T03:46:48Z

Patch 2: "[RFC,V3,2/4] RISC-V: paravirt: Add pvqspinlock frontend"
module-param
Desc: Detect module_param changes
Duration: 0.25 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T03:46:50Z

Patch 2: "[RFC,V3,2/4] RISC-V: paravirt: Add pvqspinlock frontend"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.26 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T03:46:52Z

Patch 2: "[RFC,V3,2/4] RISC-V: paravirt: Add pvqspinlock frontend"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.29 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T03:48:57Z

Patch 3: "[RFC,V3,3/4] RISC-V: paravirt: pvqspinlock: Add trace point for pv_kick/wait"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 110.24 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T04:08:29Z

Patch 3: "[RFC,V3,3/4] RISC-V: paravirt: pvqspinlock: Add trace point for pv_kick/wait"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 1170.04 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T04:35:40Z

Patch 3: "[RFC,V3,3/4] RISC-V: paravirt: pvqspinlock: Add trace point for pv_kick/wait"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1630.15 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T04:36:06Z

Patch 3: "[RFC,V3,3/4] RISC-V: paravirt: pvqspinlock: Add trace point for pv_kick/wait"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 24.45 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T04:36:34Z

Patch 3: "[RFC,V3,3/4] RISC-V: paravirt: pvqspinlock: Add trace point for pv_kick/wait"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 25.89 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T04:36:37Z

Patch 3: "[RFC,V3,3/4] RISC-V: paravirt: pvqspinlock: Add trace point for pv_kick/wait"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 2.07 seconds
Result: WARNING
Output:

WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#83: 
new file mode 100644

WARNING: Improper SPDX comment style for 'arch/riscv/kernel/trace_events_filter_paravirt.h', please use '/*' instead
#88: FILE: arch/riscv/kernel/trace_events_filter_paravirt.h:1:
+// SPDX-License-Identifier: GPL-2.0-only

WARNING: Missing or malformed SPDX-License-Identifier tag in line 1
#88: FILE: arch/riscv/kernel/trace_events_filter_paravirt.h:1:
+// SPDX-License-Identifier: GPL-2.0-only

CHECK: Alignment should match open parenthesis
#103: FILE: arch/riscv/kernel/trace_events_filter_paravirt.h:16:
+TRACE_EVENT(pv_kick,
+	TP_PROTO(int cpu, int target),

CHECK: Lines should not end with a '('
#106: FILE: arch/riscv/kernel/trace_events_filter_paravirt.h:19:
+	TP_STRUCT__entry(

CHECK: Lines should not end with a '('
#111: FILE: arch/riscv/kernel/trace_events_filter_paravirt.h:24:
+	TP_fast_assign(

CHECK: Alignment should match open parenthesis
#117: FILE: arch/riscv/kernel/trace_events_filter_paravirt.h:30:
+	TP_printk("cpu %d pv_kick target cpu %d",
+		__entry->cpu,

CHECK: Alignment should match open parenthesis
#123: FILE: arch/riscv/kernel/trace_events_filter_paravirt.h:36:
+TRACE_EVENT(pv_wait,
+	TP_PROTO(int cpu),

CHECK: Lines should not end with a '('
#126: FILE: arch/riscv/kernel/trace_events_filter_paravirt.h:39:
+	TP_STRUCT__entry(

CHECK: Lines should not end with a '('
#130: FILE: arch/riscv/kernel/trace_events_filter_paravirt.h:43:
+	TP_fast_assign(

CHECK: Alignment should match open parenthesis
#135: FILE: arch/riscv/kernel/trace_events_filter_paravirt.h:48:
+	TP_printk("cpu %d out of wfi",
+		__entry->cpu

CHECK: spaces preferred around that '/' (ctx:VxV)
#143: FILE: arch/riscv/kernel/trace_events_filter_paravirt.h:56:
+#define TRACE_INCLUDE_PATH ../../../arch/riscv/kernel/
                              ^

CHECK: spaces preferred around that '/' (ctx:VxV)
#143: FILE: arch/riscv/kernel/trace_events_filter_paravirt.h:56:
+#define TRACE_INCLUDE_PATH ../../../arch/riscv/kernel/
                                 ^

CHECK: spaces preferred around that '/' (ctx:VxV)
#143: FILE: arch/riscv/kernel/trace_events_filter_paravirt.h:56:
+#define TRACE_INCLUDE_PATH ../../../arch/riscv/kernel/
                                    ^

CHECK: spaces preferred around that '/' (ctx:VxV)
#143: FILE: arch/riscv/kernel/trace_events_filter_paravirt.h:56:
+#define TRACE_INCLUDE_PATH ../../../arch/riscv/kernel/
                                         ^

CHECK: spaces preferred around that '/' (ctx:VxV)
#143: FILE: arch/riscv/kernel/trace_events_filter_paravirt.h:56:
+#define TRACE_INCLUDE_PATH ../../../arch/riscv/kernel/
                                               ^

CHECK: space preferred before that '/' (ctx:VxE)
#143: FILE: arch/riscv/kernel/trace_events_filter_paravirt.h:56:
+#define TRACE_INCLUDE_PATH ../../../arch/riscv/kernel/
                                                      ^

total: 0 errors, 3 warnings, 14 checks, 81 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit 424bbd2ee77f ("RISC-V: paravirt: pvqspinlock: Add trace point for pv_kick/wait") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 3 warnings, 14 checks, 81 lines checked
CHECK: Alignment should match open parenthesis
CHECK: Lines should not end with a '('
CHECK: space preferred before that '/' (ctx:VxE)
CHECK: spaces preferred around that '/' (ctx:VxV)
WARNING: Improper SPDX comment style for 'arch/riscv/kernel/trace_events_filter_paravirt.h', please use '/*' instead
WARNING: Missing or malformed SPDX-License-Identifier tag in line 1
WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?

linux-riscv-bot · 2025-12-01T04:37:57Z

Patch 3: "[RFC,V3,3/4] RISC-V: paravirt: pvqspinlock: Add trace point for pv_kick/wait"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 78.23 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T04:37:58Z

Patch 3: "[RFC,V3,3/4] RISC-V: paravirt: pvqspinlock: Add trace point for pv_kick/wait"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.23 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T04:38:01Z

Patch 3: "[RFC,V3,3/4] RISC-V: paravirt: pvqspinlock: Add trace point for pv_kick/wait"
kdoc
Desc: Detects for kdoc errors
Duration: 0.98 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T04:38:03Z

Patch 3: "[RFC,V3,3/4] RISC-V: paravirt: pvqspinlock: Add trace point for pv_kick/wait"
module-param
Desc: Detect module_param changes
Duration: 0.24 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T04:38:05Z

Patch 3: "[RFC,V3,3/4] RISC-V: paravirt: pvqspinlock: Add trace point for pv_kick/wait"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.22 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T04:38:07Z

Patch 3: "[RFC,V3,3/4] RISC-V: paravirt: pvqspinlock: Add trace point for pv_kick/wait"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.30 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T04:40:13Z

Patch 4: "[RFC,V3,4/4] RISC-V: paravirt: Support nopvspin to disable PARAVIRT_SPINLOCKS"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 110.99 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T05:19:33Z

Patch 4: "[RFC,V3,4/4] RISC-V: paravirt: Support nopvspin to disable PARAVIRT_SPINLOCKS"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 2359.38 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T06:09:43Z

Patch 4: "[RFC,V3,4/4] RISC-V: paravirt: Support nopvspin to disable PARAVIRT_SPINLOCKS"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 3008.52 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T06:10:09Z

Patch 4: "[RFC,V3,4/4] RISC-V: paravirt: Support nopvspin to disable PARAVIRT_SPINLOCKS"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 24.31 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T06:10:36Z

Patch 4: "[RFC,V3,4/4] RISC-V: paravirt: Support nopvspin to disable PARAVIRT_SPINLOCKS"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 25.51 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T06:10:40Z

Patch 4: "[RFC,V3,4/4] RISC-V: paravirt: Support nopvspin to disable PARAVIRT_SPINLOCKS"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 2.61 seconds
Result: WARNING
Output:

CHECK: Consider using #include <linux/jump_label.h> instead of <asm/jump_label.h>
#55: FILE: arch/riscv/include/asm/qspinlock.h:36:
+#include <asm/jump_label.h>

total: 0 errors, 0 warnings, 1 checks, 63 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit 27c281092363 ("RISC-V: paravirt: Support nopvspin to disable PARAVIRT_SPINLOCKS") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 0 warnings, 1 checks, 63 lines checked
CHECK: Consider using #include <linux/jump_label.h> instead of <asm/jump_label.h>

linux-riscv-bot · 2025-12-01T06:12:00Z

Patch 4: "[RFC,V3,4/4] RISC-V: paravirt: Support nopvspin to disable PARAVIRT_SPINLOCKS"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 78.40 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T06:12:02Z

Patch 4: "[RFC,V3,4/4] RISC-V: paravirt: Support nopvspin to disable PARAVIRT_SPINLOCKS"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.23 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T06:12:05Z

Patch 4: "[RFC,V3,4/4] RISC-V: paravirt: Support nopvspin to disable PARAVIRT_SPINLOCKS"
kdoc
Desc: Detects for kdoc errors
Duration: 1.05 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T06:12:06Z

Patch 4: "[RFC,V3,4/4] RISC-V: paravirt: Support nopvspin to disable PARAVIRT_SPINLOCKS"
module-param
Desc: Detect module_param changes
Duration: 0.27 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T06:12:08Z

Patch 4: "[RFC,V3,4/4] RISC-V: paravirt: Support nopvspin to disable PARAVIRT_SPINLOCKS"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.21 seconds
Result: PASS

linux-riscv-bot · 2025-12-01T06:12:10Z

Patch 4: "[RFC,V3,4/4] RISC-V: paravirt: Support nopvspin to disable PARAVIRT_SPINLOCKS"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.29 seconds
Result: PASS

guoren83 added 4 commits December 1, 2025 01:16

[PW_SID:1029060] RISC-V: Add PARAVIRT_SPINLOCKS support #1166

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[PW_SID:1029060] RISC-V: Add PARAVIRT_SPINLOCKS support #1166

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