|
| From: | Paolo Bonzini |
| Subject: | Re: [Qemu-devel] [PATCH v2] ioapic: allow buggy guests mishandling level-triggered interrupts to make progress |
| Date: | Tue, 2 Apr 2019 12:20:38 +0200 |
| User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.5.1 |
On 02/04/19 11:08, Liran Alon wrote:
>> -
>> - if (((entry >> IOAPIC_LVT_TRIGGER_MODE_SHIFT) & 1) !=
>> - IOAPIC_TRIGGER_LEVEL) {
>> + if (!(entry & IOAPIC_LVT_REMOTE_IRR)) {
>> continue;
>> }
> I think above “if” of checking remote-irr should just be removed.
> But the rest seems good :)
>
It seems more logical, as the condition is now the opposite of
ioapic_set_irq: ioapic_set_irq services the interrupt if remote-irr = 0,
EOI does it if remote-irr = 1.
Paolo
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