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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
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@ -189,11 +189,6 @@ static void serial_update_irq(SerialState *s)
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{
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uint8_t tmp_iir = UART_IIR_NO_INT;
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if (!s->ier) {
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qemu_irq_lower(s->irq);
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return;
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}
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if ((s->ier & UART_IER_RLSI) && (s->lsr & UART_LSR_INT_ANY)) {
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tmp_iir = UART_IIR_RLSI;
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} else if (s->timeout_ipending) {
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