This patch changes the serial device to print only auxiliary output to the
terminal.
Doing so prevents printing output which the guest kernel never intended us
to print and by printing it we wrote junk to the users terminal.
Signed-off-by: Sasha Levin <levinsasha928@xxxxxxxxx>
---
tools/kvm/hw/serial.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/tools/kvm/hw/serial.c b/tools/kvm/hw/serial.c
index 1199264..0393d3d 100644
--- a/tools/kvm/hw/serial.c
+++ b/tools/kvm/hw/serial.c
@@ -213,7 +213,7 @@ static bool serial8250_out(struct ioport *ioport, struct kvm *kvm, u16 port, voi
case UART_TX: {
char *addr = data;
- if (!(dev->mcr & UART_MCR_LOOP))
+ if (!(dev->mcr & (UART_MCR_LOOP | UART_MCR_OUT2)))
term_putc(CONSOLE_8250, addr, size * count);
dev->iir = UART_IIR_NO_INT;
--
1.7.6
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