[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v2 09/23] i8259: Do not update IRQ output after spur
From: |
Jan Kiszka |
Subject: |
[Qemu-devel] [PATCH v2 09/23] i8259: Do not update IRQ output after spurious pic_poll_read |
Date: |
Fri, 7 Oct 2011 09:19:42 +0200 |
If pic_poll_read finds no pending IRQ and return a spurious one instead,
no PIC state is changed, thus we do not need to call pic_update_irq.
Signed-off-by: Jan Kiszka <address@hidden>
---
hw/i8259.c | 1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/hw/i8259.c b/hw/i8259.c
index 65123bd..cddd3c7 100644
--- a/hw/i8259.c
+++ b/hw/i8259.c
@@ -393,7 +393,6 @@ static uint32_t pic_poll_read(PicState *s)
pic_update_irq(s->pics_state);
} else {
ret = 0x07;
- pic_update_irq(s->pics_state);
}
return ret;
--
1.7.3.4
- [Qemu-devel] [PATCH v2 00/23] Rework i8259 and PC interrupt models, Jan Kiszka, 2011/10/07
- [Qemu-devel] [PATCH v2 01/23] pc: Drop useless test from isa_irq_handler, Jan Kiszka, 2011/10/07
- [Qemu-devel] [PATCH v2 03/23] pc: Convert GSIState::i8259_irq into array, Jan Kiszka, 2011/10/07
- [Qemu-devel] [PATCH v2 05/23] i8259: Remove premature inline function attributes, Jan Kiszka, 2011/10/07
- [Qemu-devel] [PATCH v2 06/23] i8259: Drop obsolete prototypes, Jan Kiszka, 2011/10/07
- [Qemu-devel] [PATCH v2 04/23] pc: Fix and clean up PIC-to-APIC IRQ path, Jan Kiszka, 2011/10/07
- [Qemu-devel] [PATCH v2 08/23] i8239: Introduce per-PIC output interrupt, Jan Kiszka, 2011/10/07
- [Qemu-devel] [PATCH v2 07/23] i8259: Move pic_set_irq1 after pic_update_irq, Jan Kiszka, 2011/10/07
- [Qemu-devel] [PATCH v2 11/23] i8259: Update IRQ state after reset, Jan Kiszka, 2011/10/07
- [Qemu-devel] [PATCH v2 10/23] i8259: Reorder intack in pic_read_irq, Jan Kiszka, 2011/10/07
- [Qemu-devel] [PATCH v2 09/23] i8259: Do not update IRQ output after spurious pic_poll_read,
Jan Kiszka <=
- [Qemu-devel] [PATCH v2 13/23] i8259: Switch to per-PIC IRQ update, Jan Kiszka, 2011/10/07
- [Qemu-devel] [PATCH v2 15/23] i8259: Clean up pic_ioport_read, Jan Kiszka, 2011/10/07
- [Qemu-devel] [PATCH v2 14/23] i8259: Fix poll command, Jan Kiszka, 2011/10/07
- [Qemu-devel] [PATCH v2 17/23] i8259: Replace PicState::pics_state with master flag, Jan Kiszka, 2011/10/07
- [Qemu-devel] [PATCH v2 12/23] i8259: Clear ELCR on reset, Jan Kiszka, 2011/10/07
- [Qemu-devel] [PATCH v2 02/23] pc: Generalize ISA IRQs to GSIs, Jan Kiszka, 2011/10/07
- [Qemu-devel] [PATCH v2 19/23] qdev: Add HEX8 property, Jan Kiszka, 2011/10/07
- [Qemu-devel] [PATCH v2 16/23] i8259: PREP: Replace pic_intack_read with pic_read_irq, Jan Kiszka, 2011/10/07