[Qemu-devel] Re: [PATCH 7/7] ahci: work around bug with level interrupts

2011-02-03 Thread Jan Kiszka
On 2011-02-03 11:38, Alexander Graf wrote: > > On 03.02.2011, at 11:30, Jan Kiszka wrote: > >> On 2011-02-02 15:39, Alexander Graf wrote: >>> When using level based interrupts, the interrupt is treated the same as an >>> edge triggered one: leaving the line up does not retrigger the interrupt. >>

[Qemu-devel] Re: [PATCH 7/7] ahci: work around bug with level interrupts

2011-02-03 Thread Alexander Graf
On 03.02.2011, at 11:30, Jan Kiszka wrote: > On 2011-02-02 15:39, Alexander Graf wrote: >> When using level based interrupts, the interrupt is treated the same as an >> edge triggered one: leaving the line up does not retrigger the interrupt. >> >> In fact, when not lowering the line, we won't e

[Qemu-devel] Re: [PATCH 7/7] ahci: work around bug with level interrupts

2011-02-03 Thread Jan Kiszka
On 2011-02-02 15:39, Alexander Graf wrote: > When using level based interrupts, the interrupt is treated the same as an > edge triggered one: leaving the line up does not retrigger the interrupt. > > In fact, when not lowering the line, we won't ever get a new interrupt inside > the guest. So let'