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Diffstat (limited to 'gitlab/issues_text/target_missing/host_missing/accel_missing/1232')
| -rw-r--r-- | gitlab/issues_text/target_missing/host_missing/accel_missing/1232 | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gitlab/issues_text/target_missing/host_missing/accel_missing/1232 b/gitlab/issues_text/target_missing/host_missing/accel_missing/1232 new file mode 100644 index 000000000..78c2bc960 --- /dev/null +++ b/gitlab/issues_text/target_missing/host_missing/accel_missing/1232 @@ -0,0 +1,13 @@ +AArch64 virt can't write to memory related to gicv3 +Description of problem: +According to the info in generated dtb, the memory-mapped registers of gicv3-distributor have a base addr, which is `0x0800_0000`. +And I have checked the validity by reading `gicd_typer`, which means the base addr is right. + +But when I want to configure the gicv3-distributor (like changing `gicd_ctlr`), the value is not changed, keeping the default value. The same thing happens on any register of GICD in my machine. + +**Even I write to this memory by gdb `set` command, the value is also unchangeable.** + +The addr of `gicd_ctlr` should be `0x0800_0000`(offset=0), which should be readable and writable, isn't it? + +I try to modify the value of this addr in assembly as soon as the **machine starts, without enabling MMU**. +This problem should be easier to reproduce. |