Re: [Qemu-devel] Questions about VFIO enabling MSIX vector

2019-01-17 Thread Heyi Guo
On 2019/1/17 23:21, Alex Williamson wrote: On Thu, 17 Jan 2019 20:55:05 +0800 Heyi Guo wrote: On 2019/1/16 0:18, Alex Williamson wrote: On Tue, 15 Jan 2019 11:21:51 +0800 Heyi Guo wrote: Hi Alex, Really appreciate your comments. I have some more questions below. On 2019/1/15 0:07,

Re: [Qemu-devel] Questions about VFIO enabling MSIX vector

2019-01-17 Thread Alex Williamson
On Thu, 17 Jan 2019 20:55:05 +0800 Heyi Guo wrote: > On 2019/1/16 0:18, Alex Williamson wrote: > > On Tue, 15 Jan 2019 11:21:51 +0800 > > Heyi Guo wrote: > > > >> Hi Alex, > >> > >> Really appreciate your comments. I have some more questions below. > >> > >> > >> On 2019/1/15 0:07, Alex

Re: [Qemu-devel] Questions about VFIO enabling MSIX vector

2019-01-17 Thread Heyi Guo
On 2019/1/16 0:18, Alex Williamson wrote: On Tue, 15 Jan 2019 11:21:51 +0800 Heyi Guo wrote: Hi Alex, Really appreciate your comments. I have some more questions below. On 2019/1/15 0:07, Alex Williamson wrote: On Sat, 12 Jan 2019 10:30:40 +0800 Heyi Guo wrote: Hi folks, I have

Re: [Qemu-devel] Questions about VFIO enabling MSIX vector

2019-01-15 Thread Alex Williamson
On Tue, 15 Jan 2019 11:21:51 +0800 Heyi Guo wrote: > Hi Alex, > > Really appreciate your comments. I have some more questions below. > > > On 2019/1/15 0:07, Alex Williamson wrote: > > On Sat, 12 Jan 2019 10:30:40 +0800 > > Heyi Guo wrote: > > > >> Hi folks, > >> > >> I have some questions

Re: [Qemu-devel] Questions about VFIO enabling MSIX vector

2019-01-14 Thread Heyi Guo
Hi Alex, Really appreciate your comments. I have some more questions below. On 2019/1/15 0:07, Alex Williamson wrote: On Sat, 12 Jan 2019 10:30:40 +0800 Heyi Guo wrote: Hi folks, I have some questions about vfio_msix_vector_do_use() in hw/vfio/pci.c, could you help to explain? We can see

Re: [Qemu-devel] Questions about VFIO enabling MSIX vector

2019-01-14 Thread Alex Williamson
On Sat, 12 Jan 2019 10:30:40 +0800 Heyi Guo wrote: > Hi folks, > > I have some questions about vfio_msix_vector_do_use() in > hw/vfio/pci.c, could you help to explain? > > We can see that when guest tries to enable one specific MSIX vector > by unmasking MSIX Vector Control, the access will be

Re: [Qemu-devel] Questions about VFIO enabling MSIX vector

2019-01-14 Thread Auger Eric
Hi, On 1/12/19 3:30 AM, Heyi Guo wrote: > Hi folks, > > I have some questions about vfio_msix_vector_do_use() in hw/vfio/pci.c, > could you help to explain? > > We can see that when guest tries to enable one specific MSIX vector by > unmasking MSIX Vector Control, the access will be trapped and

[Qemu-devel] Questions about VFIO enabling MSIX vector

2019-01-11 Thread Heyi Guo
Hi folks, I have some questions about vfio_msix_vector_do_use() in hw/vfio/pci.c, could you help to explain? We can see that when guest tries to enable one specific MSIX vector by unmasking MSIX Vector Control, the access will be trapped and then into function vfio_msix_vector_do_use(). And