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serial: Always update iir, even when ier is empty (Samuel Thibault) 

This fixes installation of Windows XP.

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4995 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aliguori 2008-08-12 13:22:50 +00:00
parent 41a2b9596c
commit 53e656001a
1 changed files with 0 additions and 5 deletions
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5
hw/serial.c
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@ -189,11 +189,6 @@ static void serial_update_irq(SerialState *s)
{
uint8_t tmp_iir = UART_IIR_NO_INT;
if (!s->ier) {
qemu_irq_lower(s->irq);
return;
}
if ((s->ier & UART_IER_RLSI) && (s->lsr & UART_LSR_INT_ANY)) {
tmp_iir = UART_IIR_RLSI;
} else if (s->timeout_ipending) {