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arm_gicv3: Fix broken logic in ELRSR calculation 

Fix a broken expression in the calculation of ELRSR
register bits: instead of "(lr & ICH_LR_EL2_HW) == 1"
we want to check for != 0, because the HW bit is not
bit 0 so a test for == 1 is always false.

Fixes: https://bugs.launchpad.net/bugs/1658506

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 1485255993-6322-1-git-send-email-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2017-01-27 15:20:25 +00:00
parent e62694a078
commit d87576e38d
1 changed files with 1 additions and 1 deletions
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2
hw/intc/arm_gicv3_cpuif.c
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@ -2430,7 +2430,7 @@ static uint64_t ich_elrsr_read(CPUARMState *env, const ARMCPRegInfo *ri)
uint64_t lr = cs->ich_lr_el2[i];
if ((lr & ICH_LR_EL2_STATE_MASK) == 0 &&
((lr & ICH_LR_EL2_HW) == 1 || (lr & ICH_LR_EL2_EOI) == 0)) {
((lr & ICH_LR_EL2_HW) != 0 || (lr & ICH_LR_EL2_EOI) == 0)) {
value |= (1 << i);
}
}