From 8cbad670cecaa88cc48115233bc4bc290dadd782 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Herv=C3=A9=20Poussineau?= <hpoussin@reactos.org>
Date: Tue, 22 Apr 2014 23:00:31 +0200
Subject: [PATCH] i8259: don't abort when trying to use level sensitive irqs
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This is a guest-triggerable error, as seen when using Xenix 2.3.4.
Replace hw_error by LOG_UNIMPL, so that guests can continue.
With this patch, I can install and use Xenix 2.3.4a without any problem.
I can also start installation of Xenix 2.3.4q, but it fails due to not
finding an hard disk.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
hw/intc/i8259.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/hw/intc/i8259.c b/hw/intc/i8259.c
index c6f248b145..a069d04773 100644
--- a/hw/intc/i8259.c
+++ b/hw/intc/i8259.c
@@ -265,7 +265,8 @@ static void pic_ioport_write(void *opaque, hwaddr addr64,
s->init4 = val & 1;
s->single_mode = val & 2;
if (val & 0x08) {
- hw_error("level sensitive irq not supported");
+ qemu_log_mask(LOG_UNIMP,
+ "i8259: level sensitive irq not supported\n");
}
} else if (val & 0x08) {
if (val & 0x04) {
--
2.30.2