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[Qemu-devel] [PATCH 08/64] PPC: Set MPIC IDE for IPI to 0
From: |
Alexander Graf |
Subject: |
[Qemu-devel] [PATCH 08/64] PPC: Set MPIC IDE for IPI to 0 |
Date: |
Thu, 6 Oct 2011 10:05:10 +0200 |
We use the IDE register with IPIs as a mask to keep track which processors
have already acknowledged the respective interrupt. So we need to initialize
it to 0 to make sure that it doesn't accidently fire an IPI on CPU0 when the
first IPI is triggered.
Reported-by: Elie Richa <address@hidden>
Signed-off-by: Alexander Graf <address@hidden>
---
v2 -> v3:
- fix IDE IPI reset
---
hw/openpic.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/hw/openpic.c b/hw/openpic.c
index 9710ac0..31ad175 100644
--- a/hw/openpic.c
+++ b/hw/openpic.c
@@ -1299,6 +1299,10 @@ static void mpic_reset (void *opaque)
mpp->src[i].ipvp = 0x80800000;
mpp->src[i].ide = 0x00000001;
}
+ /* Set IDE for IPIs to 0 so we don't get spurious interrupts */
+ for (i = mpp->irq_ipi0; i < (mpp->irq_ipi0 + MAX_IPI); i++) {
+ mpp->src[i].ide = 0;
+ }
/* Initialise IRQ destinations */
for (i = 0; i < MAX_CPU; i++) {
mpp->dst[i].pctp = 0x0000000F;
--
1.6.0.2
- [Qemu-devel] [PULL 00/64] ppc patch queue 2011-10-0 6, Alexander Graf, 2011/10/06
- [Qemu-devel] [PATCH 04/64] PPC: Move openpic to target specific code compilation, Alexander Graf, 2011/10/06
- [Qemu-devel] [PATCH 18/64] PPC: E500: Remove mpc8544_copy_soc_cell, Alexander Graf, 2011/10/06
- [Qemu-devel] [PATCH 08/64] PPC: Set MPIC IDE for IPI to 0,
Alexander Graf <=
- [Qemu-devel] [PATCH 06/64] PPC: Extend MPIC MMIO range, Alexander Graf, 2011/10/06
- [Qemu-devel] [PATCH 15/64] PPC: bamboo: Move host fdt copy to target, Alexander Graf, 2011/10/06
- [Qemu-devel] [PATCH 05/64] PPC: Add CPU local MMIO regions to MPIC, Alexander Graf, 2011/10/06
- [Qemu-devel] [PATCH 22/64] PPC: E500: Update freqs for all CPUs, Alexander Graf, 2011/10/06
- [Qemu-devel] [PATCH 20/64] PPC: KVM: Remove kvmppc_read_host_property, Alexander Graf, 2011/10/06
- [Qemu-devel] [PATCH 28/64] device tree: give dt more size, Alexander Graf, 2011/10/06
- [Qemu-devel] [PATCH 32/64] PPC: Add new target config for pseries, Alexander Graf, 2011/10/06
- [Qemu-devel] [PATCH 16/64] PPC: KVM: Add generic function to read host clockfreq, Alexander Graf, 2011/10/06
- [Qemu-devel] [PATCH 07/64] PPC: Fix IPI support in MPIC, Alexander Graf, 2011/10/06
- [Qemu-devel] [PATCH 30/64] MPC8544DS: Generate CPU nodes on init, Alexander Graf, 2011/10/06