From 53d34b8c1ba74f14053deeb2cce7d2501695e83d Mon Sep 17 00:00:00 2001 From: Corey Minyard Date: Tue, 19 Sep 2017 15:19:26 -0500 Subject: [PATCH] ipmi: disable IRQ and ATN on an external disconnect Otherwise there's no way to clear them without an external command, and it could lock the OS in the VM if they were stuck. Signed-off-by: Corey Minyard --- hw/ipmi/ipmi_bmc_extern.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/hw/ipmi/ipmi_bmc_extern.c b/hw/ipmi/ipmi_bmc_extern.c index 8c0535d3dd..bf0b7ee0f5 100644 --- a/hw/ipmi/ipmi_bmc_extern.c +++ b/hw/ipmi/ipmi_bmc_extern.c @@ -425,6 +425,11 @@ static void chr_event(void *opaque, int event) return; } ibe->connected = false; + /* + * Don't hang the OS trying to handle the ATN bit, other end will + * resend on a reconnect. + */ + k->set_atn(s, 0, 0); if (ibe->waiting_rsp) { ibe->waiting_rsp = false; ibe->inbuf[1] = ibe->outbuf[1] | 0x04;