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hw/intc/arm_gicv3: Honour GICD_CTLR.EnableGrp1NS for LPIs 

The GICD_CTLR distributor register has enable bits which control
whether the different interrupt groups (Group 0, Non-secure Group 1
and Secure Group 1) are forwarded to the CPU.  We get this right for
traditional interrupts, but forgot to account for it when adding
LPIs.  LPIs are always Group 1 NS and if the EnableGrp1NS bit is not
set we must not forward them to the CPU.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220122182444.724087-7-peter.maydell@linaro.org
master
Peter Maydell 2022-01-22 18:24:36 +00:00
parent 0cc38f359c
commit 703090770c
1 changed files with 1 additions and 0 deletions
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hw/intc/arm_gicv3.c
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@ -166,6 +166,7 @@ static void gicv3_redist_update_noirqset(GICv3CPUState *cs)
}
if ((cs->gicr_ctlr & GICR_CTLR_ENABLE_LPIS) && cs->gic->lpi_enable &&
(cs->gic->gicd_ctlr & GICD_CTLR_EN_GRP1NS) &&
(cs->hpplpi.prio != 0xff)) {
if (irqbetter(cs, cs->hpplpi.irq, cs->hpplpi.prio)) {
cs->hppi.irq = cs->hpplpi.irq;