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rust: hpet: fix decoding of timer registers

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Due to a missing "& 0x18", timer registers are not decoded correctly.
This breaks the tests/functional/test_x86_64_tuxrun.py functional
test.

Fixes: 519088b7cf ("rust: hpet: decode HPET registers into enums", 2025-03-06)
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2025-03-21 14:17:52 +01:00
parent f7b87e464c
commit 64acc23c97
1 changed files with 1 additions and 1 deletions
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2
rust/hw/timer/hpet/src/hpet.rs
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@ -776,7 +776,7 @@ impl HPETState {
let timer_id: usize = ((addr - 0x100) / 0x20) as usize;
if timer_id <= self.num_timers.get() {
// TODO: Add trace point - trace_hpet_ram_[read|write]_timer_id(timer_id)
TimerRegister::try_from(addr)
TimerRegister::try_from(addr & 0x18)
.map(|reg| HPETRegister::Timer(&self.timers[timer_id], reg))
} else {
// TODO: Add trace point - trace_hpet_timer_id_out_of_range(timer_id)