On Thu, Nov 30, 2023 at 06:32:00AM +, Chen, Jiqian wrote:
>
> On 2023/11/28 22:17, Roger Pau Monné wrote:
> > On Fri, Nov 24, 2023 at 06:41:35PM +0800, Jiqian Chen wrote:
> >> If we run Xen with PVH dom0 and hvm domU, hvm will map a pirq for
> >> a passthrough device by using gsi, see xen_pt_r
On 2023/11/30 17:00, Jan Beulich wrote:
> On 30.11.2023 07:44, Chen, Jiqian wrote:
>> On 2023/11/28 23:14, Jan Beulich wrote:
>>> On 24.11.2023 11:41, Jiqian Chen wrote:
--- a/xen/arch/x86/hvm/hypercall.c
+++ b/xen/arch/x86/hvm/hypercall.c
@@ -74,6 +74,8 @@ long hvm_physdev_op(int cm
On 30.11.2023 07:44, Chen, Jiqian wrote:
> On 2023/11/28 23:14, Jan Beulich wrote:
>> On 24.11.2023 11:41, Jiqian Chen wrote:
>>> --- a/xen/arch/x86/hvm/hypercall.c
>>> +++ b/xen/arch/x86/hvm/hypercall.c
>>> @@ -74,6 +74,8 @@ long hvm_physdev_op(int cmd, XEN_GUEST_HANDLE_PARAM(void)
>>> arg)
>>>
Hi Jan Beulich,
On 2023/11/30 14:44, Chen, Jiqian wrote:
>
> On 2023/11/28 23:14, Jan Beulich wrote:
>> On 24.11.2023 11:41, Jiqian Chen wrote:
>>> --- a/xen/arch/x86/hvm/hypercall.c
>>> +++ b/xen/arch/x86/hvm/hypercall.c
>>> @@ -74,6 +74,8 @@ long hvm_physdev_op(int cmd, XEN_GUEST_HANDLE_PARAM(v
On 2023/11/28 23:14, Jan Beulich wrote:
> On 24.11.2023 11:41, Jiqian Chen wrote:
>> --- a/xen/arch/x86/hvm/hypercall.c
>> +++ b/xen/arch/x86/hvm/hypercall.c
>> @@ -74,6 +74,8 @@ long hvm_physdev_op(int cmd, XEN_GUEST_HANDLE_PARAM(void)
>> arg)
>> {
>> case PHYSDEVOP_map_pirq:
>> c
On 2023/11/28 22:17, Roger Pau Monné wrote:
> On Fri, Nov 24, 2023 at 06:41:35PM +0800, Jiqian Chen wrote:
>> If we run Xen with PVH dom0 and hvm domU, hvm will map a pirq for
>> a passthrough device by using gsi, see xen_pt_realize->xc_physdev_map_pirq
>> and pci_add_dm_done->xc_physdev_map_pirq.
On 24.11.2023 11:41, Jiqian Chen wrote:
> --- a/xen/arch/x86/hvm/hypercall.c
> +++ b/xen/arch/x86/hvm/hypercall.c
> @@ -74,6 +74,8 @@ long hvm_physdev_op(int cmd, XEN_GUEST_HANDLE_PARAM(void)
> arg)
> {
> case PHYSDEVOP_map_pirq:
> case PHYSDEVOP_unmap_pirq:
> +if (is_hardwa
On Fri, Nov 24, 2023 at 06:41:35PM +0800, Jiqian Chen wrote:
> If we run Xen with PVH dom0 and hvm domU, hvm will map a pirq for
> a passthrough device by using gsi, see xen_pt_realize->xc_physdev_map_pirq
> and pci_add_dm_done->xc_physdev_map_pirq. Then xc_physdev_map_pirq will
> call into Xen, bu
If we run Xen with PVH dom0 and hvm domU, hvm will map a pirq for
a passthrough device by using gsi, see xen_pt_realize->xc_physdev_map_pirq
and pci_add_dm_done->xc_physdev_map_pirq. Then xc_physdev_map_pirq will
call into Xen, but in hvm_physdev_op, PHYSDEVOP_map_pirq is not allowed
because currd
