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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-05-30 16:52:07 +0200 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-05-30 16:52:17 +0200 |
| commit | 9260319e7411ff8281700a532caa436f40120ec4 (patch) | |
| tree | 2f6bfe5f3458dd49d328d3a9eb508595450adec0 /gitlab/issues_text/target_arm/host_missing/accel_missing/1948 | |
| parent | 225caa38269323af1bfc2daadff5ec8bd930747f (diff) | |
| download | qemu-analysis-9260319e7411ff8281700a532caa436f40120ec4.tar.gz qemu-analysis-9260319e7411ff8281700a532caa436f40120ec4.zip | |
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Diffstat (limited to 'gitlab/issues_text/target_arm/host_missing/accel_missing/1948')
| -rw-r--r-- | gitlab/issues_text/target_arm/host_missing/accel_missing/1948 | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gitlab/issues_text/target_arm/host_missing/accel_missing/1948 b/gitlab/issues_text/target_arm/host_missing/accel_missing/1948 new file mode 100644 index 000000000..7caef5c3d --- /dev/null +++ b/gitlab/issues_text/target_arm/host_missing/accel_missing/1948 @@ -0,0 +1,3 @@ +ARM GICv3 cannot support irq number > 992 +Description of problem: +If we want to create a gic with supported irq number 992, we need to set the `num-irq` property to 992 + 32 while 32 is the extra SGI number. But there is a problem, when QEMU initialize GICv3, it will check the variable `num_irq <= 1020 && (num_irq & 32) == 0`, which will lead to error abort. So there is no way to bypass the ```num_irq <= 1020``` check and we cannot use irq number bigger than 992 while in ARM GIC specification, irq number < 1020 should all be aviliable to use. |