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Re: [Qemu-devel] [RFT][PATCH 09/15] hpet/rtc: Rework RTC IRQ replacement
From: |
Jan Kiszka |
Subject: |
Re: [Qemu-devel] [RFT][PATCH 09/15] hpet/rtc: Rework RTC IRQ replacement by HPET |
Date: |
Tue, 25 May 2010 14:39:40 +0200 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
Paul Brook wrote:
>>> I realise that. However I'd expect things to break if the guest OS
>>> devices to share an IRQ line between the HPET and some other device.
>> The guest would share IRQ8, not the RTC output. So there would be no
>> difference to the current situation.
>
> The difference is that you've removed the check that prevented overlap
> between
> the PIC and annother device. You should be using
> isa_reserve_irq/isa_init_irq
> before you use an ISA IRQ line. Any uses of isa_bus_irqs (including teh
> existing HPET code) are probably broken.
...at least fragile. OK, will address this as well.
Thanks,
Jan
--
Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux
- [Qemu-devel] [RFT][PATCH 13/15] hpet: Make number of timers configurable, (continued)
- [Qemu-devel] [RFT][PATCH 13/15] hpet: Make number of timers configurable, Jan Kiszka, 2010/05/24
- [Qemu-devel] [RFT][PATCH 10/15] hpet: Drop static state, Jan Kiszka, 2010/05/24
- [Qemu-devel] [RFT][PATCH 09/15] hpet/rtc: Rework RTC IRQ replacement by HPET, Jan Kiszka, 2010/05/24
- Re: [Qemu-devel] [RFT][PATCH 09/15] hpet/rtc: Rework RTC IRQ replacement by HPET, Paul Brook, 2010/05/25
- Re: [Qemu-devel] [RFT][PATCH 09/15] hpet/rtc: Rework RTC IRQ replacement by HPET, Jan Kiszka, 2010/05/25
- Re: [Qemu-devel] [RFT][PATCH 09/15] hpet/rtc: Rework RTC IRQ replacement by HPET, Paul Brook, 2010/05/25
- Re: [Qemu-devel] [RFT][PATCH 09/15] hpet/rtc: Rework RTC IRQ replacement by HPET, Jan Kiszka, 2010/05/25
- Re: [Qemu-devel] [RFT][PATCH 09/15] hpet/rtc: Rework RTC IRQ replacement by HPET, Paul Brook, 2010/05/25
- Re: [Qemu-devel] [RFT][PATCH 09/15] hpet/rtc: Rework RTC IRQ replacement by HPET, Jan Kiszka, 2010/05/25
- Re: [Qemu-devel] [RFT][PATCH 09/15] hpet/rtc: Rework RTC IRQ replacement by HPET, Paul Brook, 2010/05/25
- Re: [Qemu-devel] [RFT][PATCH 09/15] hpet/rtc: Rework RTC IRQ replacement by HPET,
Jan Kiszka <=
[Qemu-devel] [RFT][PATCH 15/15] monitor/QMP: Drop info hpet / query-hpet, Jan Kiszka, 2010/05/24
[Qemu-devel] [RFT][PATCH 02/15] hpet: Coding style cleanups and some refactorings, Jan Kiszka, 2010/05/24
[Qemu-devel] [RFT][PATCH 07/15] qemu_irq: Add IRQ handlers with delivery feedback, Jan Kiszka, 2010/05/24
[Qemu-devel] Re: [RFT][PATCH 07/15] qemu_irq: Add IRQ handlers with delivery feedback, Blue Swirl, 2010/05/25