Commit-ID: 750d86f33286e0ca6e20425b3388baef54b6e563 Gitweb: http://git.kernel.org/tip/750d86f33286e0ca6e20425b3388baef54b6e563 Author: Andre Przywara <andre.przywara@xxxxxxx> AuthorDate: Wed, 17 Dec 2014 15:40:47 +0000 Committer: Will Deacon <will.deacon@xxxxxxx> CommitDate: Wed, 17 Dec 2014 15:57:47 +0000 kvmtool: ARM: advertise 8250 IRQs as level-triggered Both the 16550/8250 UART emulation in kvmtool as well as all the drivers and DTBs for real hardware use level triggered interrutpts. But the device tree currently describes them as being edge triggered, which can lead to hangs in guests. Use the new IRQ type parameter to properly describe the interrupts. This goes along the lines of a similar QEMU patch: http://git.qemu.org/?p=qemu.git;a=commitdiff;h=0be969a2d974971628fc4ed95834d22ecf0fd497 Signed-off-by: Andre Przywara <andre.przywara@xxxxxxx> Signed-off-by: Will Deacon <will.deacon@xxxxxxx> --- tools/kvm/hw/serial.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/kvm/hw/serial.c b/tools/kvm/hw/serial.c index 05b8fcc..270e6182 100644 --- a/tools/kvm/hw/serial.c +++ b/tools/kvm/hw/serial.c @@ -386,7 +386,7 @@ void serial8250_generate_fdt_node(struct ioport *ioport, void *fdt, _FDT(fdt_begin_node(fdt, dev_name)); _FDT(fdt_property_string(fdt, "compatible", "ns16550a")); _FDT(fdt_property(fdt, "reg", reg_prop, sizeof(reg_prop))); - generate_irq_prop(fdt, dev->irq, IRQ_TYPE_EDGE_RISING); + generate_irq_prop(fdt, dev->irq, IRQ_TYPE_LEVEL_HIGH); _FDT(fdt_property_cell(fdt, "clock-frequency", 1843200)); _FDT(fdt_end_node(fdt)); } -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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