diff options
Diffstat (limited to 'gitlab/issues/target_arm/host_missing/accel_TCG/1500.toml')
| -rw-r--r-- | gitlab/issues/target_arm/host_missing/accel_TCG/1500.toml | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/gitlab/issues/target_arm/host_missing/accel_TCG/1500.toml b/gitlab/issues/target_arm/host_missing/accel_TCG/1500.toml deleted file mode 100644 index 623548b5c..000000000 --- a/gitlab/issues/target_arm/host_missing/accel_TCG/1500.toml +++ /dev/null @@ -1,46 +0,0 @@ -id = 1500 -title = "Some system/debug regisiters are inconsistent with real device in qemu-system-arm" -state = "closed" -created_at = "2023-02-21T02:49:13.478Z" -closed_at = "2023-02-27T11:10:28.549Z" -labels = ["Closed::WontFix", "accel: TCG", "target: arm"] -url = "https://gitlab.com/qemu-project/qemu/-/issues/1500" -host-os = "Ubuntu 20.04" -host-arch = "x86" -qemu-version = "7.2.0" -guest-os = "-" -guest-arch = "cortex-a7" -description = """We used differential testing to compared the instruction consistency (ARMv7) between QEMU and raspberry pi 2B in system level and some inconsistency in system regisiter was detected. - -1. CCSIDR--Cache Size ID Registers - - **Inconsistency** - - - CCSIDR in QEMU: 0x701fe00a--Associativity: 2, Number of sets:256 - - - CCSIDR in Raspi2B: 0x700fe01a--Associativity: 4, Number of sets:128 - - **Tested Instruction sample** - - - MRC_T1A1_A 11101110001100000000111100010000 0xee300f10 - - According to ARMv7 Manual B4.1.19 encoding, the NumSets and Associativity are set different bewteen QEMU when emulating raspi2b and raspi2b. - - The CCSIDR is set in the function`cortex_a7_initfn(Object *obj)` in target/arm/cpu_tcg.c for cortex_a7. - -2. DBGDRAR--Debug ROM Address Register - - **Inconsistency** - - - DBGDRAR in QEMU: 0x0 --Invalid - - - DBGDRAR in Raspi2B: 0x40020003--Valid - - According to ARMv7 Manual C11.11.16 encoding, the DBGDRAR in qemu is invalid. - - **Tested Instruction sample** - - - MRC_T1A1_A 11101110000100010001111000010000 0xee111e10""" -reproduce = """1. Compile a kernel module to run the test instruction in PL1. -2. Use kgdb to get the register info""" -additional = """""" |