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Diffstat (limited to 'results/classifier/118/assembly/1862167')
| -rw-r--r-- | results/classifier/118/assembly/1862167 | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/results/classifier/118/assembly/1862167 b/results/classifier/118/assembly/1862167 new file mode 100644 index 000000000..7c6267a86 --- /dev/null +++ b/results/classifier/118/assembly/1862167 @@ -0,0 +1,79 @@ +assembly: 0.936 +architecture: 0.846 +graphic: 0.779 +arm: 0.771 +performance: 0.718 +device: 0.706 +register: 0.659 +semantic: 0.633 +vnc: 0.621 +ppc: 0.620 +risc-v: 0.577 +x86: 0.565 +network: 0.540 +VMM: 0.523 +kernel: 0.515 +i386: 0.503 +mistranslation: 0.456 +PID: 0.448 +permissions: 0.438 +TCG: 0.436 +hypervisor: 0.435 +socket: 0.431 +user-level: 0.406 +files: 0.399 +KVM: 0.390 +boot: 0.382 +debug: 0.339 +peripherals: 0.263 +virtual: 0.253 +-------------------- +arm: 0.996 +user-level: 0.853 +assembly: 0.493 +virtual: 0.353 +register: 0.181 +hypervisor: 0.140 +files: 0.068 +semantic: 0.034 +performance: 0.034 +architecture: 0.027 +TCG: 0.022 +debug: 0.020 +PID: 0.013 +VMM: 0.006 +kernel: 0.006 +KVM: 0.005 +network: 0.005 +device: 0.004 +socket: 0.003 +peripherals: 0.002 +risc-v: 0.002 +boot: 0.002 +permissions: 0.002 +graphic: 0.001 +vnc: 0.001 +x86: 0.001 +ppc: 0.001 +i386: 0.001 +mistranslation: 0.000 + +Variation of SVE register size (qemu-user-aarch64) + +Specification of ARMv8-A SVE extention allows various values for the size of the SVE register. On the other hand, it seems that the current qemu-aarch64 supports only the maximum length of 2048 bits as the SVE register size. I am writing an assembler program for a CPU that is compliant with ARMv8-A + SVE and has a 512-bit SVE register, but when this is run with qemu-user-aarch64, a 2048-bit load / store instruction is executed This causes a segmentation fault. Shouldn't qeum-user-aarch64 have an option to specify the SVE register size? + +This is already managed by a cpu property. + +0df9142d27d5 ("target/arm/cpu64: max cpu: Introduce sve<N> properties") + +See docs/arm-cpu-features.rst + +Try "-cpu max,sve512=on". + + + +Note also that the vector length in SVE is not fixed -- you should be writing your guest code to support arbitrary vector lengths, because otherwise it will not run on all SVE-supporting CPUs. + + +Thank you for your kind advice. I'll try it. + |