Test with VT-d patches
Hi,
Quoted 12 lines · On Tue, Sep 2, 2008 at 4:17 PM, <[email protected]> wrote:
Quoted 3 lines
Hi,
here comes a small part of the dmesg output. Qemu/KVM produces now a CPU
usage
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of about 90%.
Sep 2 11:27:35 ubuntu klogd: [ 335.057707] ------------[ cut here]------------
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Sep 2 11:27:35 ubuntu klogd: [ 335.057711] WARNING: at
kernel/irq/manage.c:180__enable_irq+0x34/0x80()
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Sep 2 11:27:35 ubuntu klogd: [ 335.057713] Unbalanced enable for IRQ 21[...]
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This messages comes endless.
Something with IRQs?Hum, seems that interrupt has already been enabled... did you load the driver for the NIC in the host? With pass-through the device is "owned" by the guest.
No.
The driver was not loaded.
It is not possible to start qemu with a pci-device used by the host. (I try this with the second network device.)
Can this interrupt be shared with an other IRQ?
Gregor
Quoted 32 lines · On Wednesday 03 September 2008 02:40:06 [email protected] wrote:
Hi,
Quoted 21 lines · On Tue, Sep 2, 2008 at 4:17 PM, <[email protected]> wrote:
Quoted 3 lines
Hi,
here comes a small part of the dmesg output. Qemu/KVM produces now a CPU
usage
Quoted 4 lines
of about 90%.
Sep 2 11:27:35 ubuntu klogd: [ 335.057707] ------------[ cut here]------------
Quoted 1 line
Sep 2 11:27:35 ubuntu klogd: [ 335.057711] WARNING: at
kernel/irq/manage.c:180__enable_irq+0x34/0x80()Quoted 2 lines
Sep 2 11:27:35 ubuntu klogd: [ 335.057713] Unbalanced enable for IRQ21
Quoted 8 lines
[...]
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This messages comes endless.
Something with IRQs?Hum, seems that interrupt has already been enabled... did you load the driver for the NIC in the host? With pass-through the device is "owned" by the guest.
Quoted 6 lines
No.
The driver was not loaded.
It is not possible to start qemu with a pci-device used by the host. (I try this with the second network device.)Can this interrupt be shared with an other IRQ?
Oh, no, not currently...
The device's IRQ should not be shared with other, we haven't implement shared IRQ logic, but soon.
Signature · 2 lines
regards Yang, Sheng
Quoted 2 lines
Gregor