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[PULL 23/26] hw/intc/arm_gicv3_cpuif: Make GIC maintenance interrupts wo
From: |
Peter Maydell |
Subject: |
[PULL 23/26] hw/intc/arm_gicv3_cpuif: Make GIC maintenance interrupts work |
Date: |
Mon, 2 Nov 2020 17:10:02 +0000 |
In gicv3_init_cpuif() we copy the ARMCPU gicv3_maintenance_interrupt
into the GICv3CPUState struct's maintenance_irq field. This will
only work if the board happens to have already wired up the CPU
maintenance IRQ before the GIC was realized. Unfortunately this is
not the case for the 'virt' board, and so the value that gets copied
is NULL (since a qemu_irq is really a pointer to an IRQState struct
under the hood). The effect is that the CPU interface code never
actually raises the maintenance interrupt line.
Instead, since the GICv3CPUState has a pointer to the CPUState, make
the dereference at the point where we want to raise the interrupt, to
avoid an implicit requirement on board code to wire things up in a
particular order.
Reported-by: Jose Martins <josemartins90@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20201009153904.28529-1-peter.maydell@linaro.org
Reviewed-by: Luc Michel <luc@lmichel.fr>
---
include/hw/intc/arm_gicv3_common.h | 1 -
hw/intc/arm_gicv3_cpuif.c | 5 ++---
2 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/include/hw/intc/arm_gicv3_common.h
b/include/hw/intc/arm_gicv3_common.h
index 0331b0ffdb8..91491a2f664 100644
--- a/include/hw/intc/arm_gicv3_common.h
+++ b/include/hw/intc/arm_gicv3_common.h
@@ -153,7 +153,6 @@ struct GICv3CPUState {
qemu_irq parent_fiq;
qemu_irq parent_virq;
qemu_irq parent_vfiq;
- qemu_irq maintenance_irq;
/* Redistributor */
uint32_t level; /* Current IRQ level */
diff --git a/hw/intc/arm_gicv3_cpuif.c b/hw/intc/arm_gicv3_cpuif.c
index 08e000e33c6..43ef1d7a840 100644
--- a/hw/intc/arm_gicv3_cpuif.c
+++ b/hw/intc/arm_gicv3_cpuif.c
@@ -399,6 +399,7 @@ static void gicv3_cpuif_virt_update(GICv3CPUState *cs)
int irqlevel = 0;
int fiqlevel = 0;
int maintlevel = 0;
+ ARMCPU *cpu = ARM_CPU(cs->cpu);
idx = hppvi_index(cs);
trace_gicv3_cpuif_virt_update(gicv3_redist_affid(cs), idx);
@@ -424,7 +425,7 @@ static void gicv3_cpuif_virt_update(GICv3CPUState *cs)
qemu_set_irq(cs->parent_vfiq, fiqlevel);
qemu_set_irq(cs->parent_virq, irqlevel);
- qemu_set_irq(cs->maintenance_irq, maintlevel);
+ qemu_set_irq(cpu->gicv3_maintenance_interrupt, maintlevel);
}
static uint64_t icv_ap_read(CPUARMState *env, const ARMCPRegInfo *ri)
@@ -2624,8 +2625,6 @@ void gicv3_init_cpuif(GICv3State *s)
&& cpu->gic_num_lrs) {
int j;
- cs->maintenance_irq = cpu->gicv3_maintenance_interrupt;
-
cs->num_list_regs = cpu->gic_num_lrs;
cs->vpribits = cpu->gic_vpribits;
cs->vprebits = cpu->gic_vprebits;
--
2.20.1
- [PULL 10/26] target/arm: Simplify do_long_3d and do_2scalar_long, (continued)
- [PULL 10/26] target/arm: Simplify do_long_3d and do_2scalar_long, Peter Maydell, 2020/11/02
- [PULL 13/26] target/arm: Fix VUDOT/VSDOT (scalar) on big-endian hosts, Peter Maydell, 2020/11/02
- [PULL 17/26] hw/arm/smmuv3: Fix potential integer overflow (CID 1432363), Peter Maydell, 2020/11/02
- [PULL 16/26] disas/capstone: Fix monitor disassembly of >32 bytes, Peter Maydell, 2020/11/02
- [PULL 19/26] hw/display/omap_lcdc: Fix potential NULL pointer dereference, Peter Maydell, 2020/11/02
- [PULL 15/26] target/arm: fix LORID_EL1 access check, Peter Maydell, 2020/11/02
- [PULL 18/26] hw/arm/boot: fix SVE for EL3 direct kernel boot, Peter Maydell, 2020/11/02
- [PULL 14/26] target/arm: fix handling of HCR.FB, Peter Maydell, 2020/11/02
- [PULL 20/26] hw/display/exynos4210_fimd: Fix potential NULL pointer dereference, Peter Maydell, 2020/11/02
- [PULL 21/26] target/arm: Get correct MMU index for other-security-state, Peter Maydell, 2020/11/02
- [PULL 23/26] hw/intc/arm_gicv3_cpuif: Make GIC maintenance interrupts work,
Peter Maydell <=
- [PULL 22/26] configure: Test that gio libs from pkg-config work, Peter Maydell, 2020/11/02
- [PULL 25/26] qemu-option-trace.rst.inc: Don't use option:: markup, Peter Maydell, 2020/11/02
- [PULL 24/26] scripts/kerneldoc: For Sphinx 3 use c:macro for macros with arguments, Peter Maydell, 2020/11/02
- [PULL 26/26] tests/qtest/npcm7xx_rng-test: Disable randomness tests, Peter Maydell, 2020/11/02
- Re: [PULL 00/26] target-arm queue, Peter Maydell, 2020/11/03