On Wednesday, 2020-11-04 at 23:53:01 -08, Nadav Amit wrote:
>> On Nov 3, 2020, at 8:08 AM, David Edmondson <david.edmondson@xxxxxxxxxx> wrote:
>>
>> Verify that the clflushopt instruction succeeds when applied to an
>> MMIO address at both cpl0 and cpl3.
>>
>> Suggested-by: Joao Martins <joao.m.martins@xxxxxxxxxx>
>> Signed-off-by: David Edmondson <david.edmondson@xxxxxxxxxx>
>>
>
> [snip]
>
>> + ret = pci_find_dev(PCI_VENDOR_ID_REDHAT, PCI_DEVICE_ID_REDHAT_TEST);
>> + if (ret != PCIDEVADDR_INVALID) {
>> + pci_dev_init(&pcidev, ret);
>
> Just wondering, and perhaps this question is more general: does this test
> really need the Red-Hat test device?
>
> I know it is an emulated device, but can’t we use some other MMIO address
> (e.g., PIT) that is also available on bare-metal?
If it's acceptable to assume that HPET is present and at 0xfed00000,
then it could be used.
dme.
--
Does everyone stare the way I do?
