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[BUG] CVA6 FPGA Branch Predictor Flush Is Not Observed After Exception Return

Type:BugFor bugs in the RTL, Documentation, Verification environment or Tool and Build systemFor bugs in the RTL, Documentation, Verification environment or Tool and Build system

Status: Open.

#3320 In openhwgroup/cva6;

· YzhDDDing opened on May 13, 2026

[BUG] mideleg VS interrupt bits are not read-only-one after reset when H extension is enabled

Type:BugFor bugs in the RTL, Documentation, Verification environment or Tool and Build systemFor bugs in the RTL, Documentation, Verification environment or Tool and Build system

Status: Open.

#3317 In openhwgroup/cva6;

· yzy0516 opened on May 11, 2026

[BUG] sepc/mepc/vsepc do not mask bit[1] when RVC is disabled (IALIGN=32 configurations)

Type:BugFor bugs in the RTL, Documentation, Verification environment or Tool and Build systemFor bugs in the RTL, Documentation, Verification environment or Tool and Build system

Status: Open.

#3316 In openhwgroup/cva6;

· ruc-jty opened on May 10, 2026

[BUG] MRET incorrectly sets V=1 when MPP=M-mode

Type:BugFor bugs in the RTL, Documentation, Verification environment or Tool and Build systemFor bugs in the RTL, Documentation, Verification environment or Tool and Build system

Status: Open.

#3313 In openhwgroup/cva6;

· oChunCai opened on May 9, 2026

[BUG] Spike does not implement MCYCLEH for targets CV32A60X and CV32A65X causing tests to fail

Type:BugFor bugs in the RTL, Documentation, Verification environment or Tool and Build systemFor bugs in the RTL, Documentation, Verification environment or Tool and Build system

Status: Open.

#3311 In openhwgroup/cva6;

· chasl59 opened on May 8, 2026

[BUG] CVXIF result.data not written to rd for R-type custom instructions (cv32a60x) — commit_valid/issue_valid race with coprocessor FSM

Type:BugFor bugs in the RTL, Documentation, Verification environment or Tool and Build systemFor bugs in the RTL, Documentation, Verification environment or Tool and Build system

Status: Open.

#3308 In openhwgroup/cva6;

· emmanuel-semify opened on May 8, 2026

[BUG] SFENCE.VMA selective flush appears to use a stale vaddr/ASID selector

Type:BugFor bugs in the RTL, Documentation, Verification environment or Tool and Build systemFor bugs in the RTL, Documentation, Verification environment or Tool and Build system

Status: Open.

#3307 In openhwgroup/cva6;

· YzhDDDing opened on May 8, 2026

[BUG] zip/unzip Instructions Incorrectly Accepted on RV64 in CVA6 Decoder

Type:BugFor bugs in the RTL, Documentation, Verification environment or Tool and Build systemFor bugs in the RTL, Documentation, Verification environment or Tool and Build system

Status: Open.

#3306 In openhwgroup/cva6;

· ruc-jty opened on May 8, 2026

[BUG] VU-mode WFI with mstatus.TW=1 raises wrong exception type

Type:BugFor bugs in the RTL, Documentation, Verification environment or Tool and Build systemFor bugs in the RTL, Documentation, Verification environment or Tool and Build system

Status: Open.

#3303 In openhwgroup/cva6;

· ruc-jty opened on May 6, 2026

[BUG] SBE/UBE incorrectly mirror MBE when S-mode/U-mode are not supported

Type:BugFor bugs in the RTL, Documentation, Verification environment or Tool and Build systemFor bugs in the RTL, Documentation, Verification environment or Tool and Build system

Status: Open.

#3301 In openhwgroup/cva6;

· pointerliu opened on May 6, 2026

[BUG] PTW PMP access fault for store can be incorrectly reported as LD_ACCESS_FAULT

Type:BugFor bugs in the RTL, Documentation, Verification environment or Tool and Build systemFor bugs in the RTL, Documentation, Verification environment or Tool and Build system

Status: Open.

#3299 In openhwgroup/cva6;

· ruc-jty opened on May 6, 2026

[BUG] Changing mstatus.MXR does not invalidate DTLB, allowing stale load permissions on execute-only pages

Type:BugFor bugs in the RTL, Documentation, Verification environment or Tool and Build systemFor bugs in the RTL, Documentation, Verification environment or Tool and Build system

Status: Open.

#3298 In openhwgroup/cva6;

· ruc-jty opened on May 5, 2026