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authorShashi Mallela <shashi.mallela@linaro.org>2021-11-24 13:22:46 -0500
committerPeter Maydell <peter.maydell@linaro.org>2021-11-26 16:54:09 +0000
commit2f459cd1a80d24189598fd3416e270d1feb7dc87 (patch)
tree57419897b15f7051c5f1695b04d4a167dff851db /hw
parentbede01170e9cb8f9ac9c6a0665ee9f3989a57e6a (diff)
hw/intc: cannot clear GICv3 ITS CTLR[Enabled] bit
When Enabled bit is cleared in GITS_CTLR,ITS feature continues to be enabled.This patch fixes the issue. Signed-off-by: Shashi Mallela <shashi.mallela@linaro.org> Tested-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20211124182246.67691-1-shashi.mallela@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw')
-rw-r--r--hw/intc/arm_gicv3_its.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/hw/intc/arm_gicv3_its.c b/hw/intc/arm_gicv3_its.c
index 84bcbb5f56..c929a9cb5c 100644
--- a/hw/intc/arm_gicv3_its.c
+++ b/hw/intc/arm_gicv3_its.c
@@ -896,13 +896,14 @@ static bool its_writel(GICv3ITSState *s, hwaddr offset,
switch (offset) {
case GITS_CTLR:
- s->ctlr |= (value & ~(s->ctlr));
-
- if (s->ctlr & ITS_CTLR_ENABLED) {
+ if (value & R_GITS_CTLR_ENABLED_MASK) {
+ s->ctlr |= ITS_CTLR_ENABLED;
extract_table_params(s);
extract_cmdq_params(s);
s->creadr = 0;
process_cmdq(s);
+ } else {
+ s->ctlr &= ~ITS_CTLR_ENABLED;
}
break;
case GITS_CBASER: