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| author | Matthew Rosato <mjrosato@linux.ibm.com> | 2020-10-07 21:56:21 +0300 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2020-10-07 23:23:43 +0300 |
| commit | 517fe298245c4c2c3d1f9b8f140e40c7f9d7518d (patch) | |
| tree | b6bb22299c316a600c0371d758ef35fda7b6f2ed /arch/s390 | |
| parent | dc8c638d9e140e0a2a04ab7e3f3fde3bbad1dacf (diff) | |
| download | linux-517fe298245c4c2c3d1f9b8f140e40c7f9d7518d.tar.xz | |
s390/pci: track whether util_str is valid in the zpci_dev
We'll need to keep track of whether or not the byte string in util_str is
valid and thus needs to be passed to a vfio-pci passthrough device.
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Acked-by: Niklas Schnelle <schnelle@linux.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/pci.h | 3 | ||||
| -rw-r--r-- | arch/s390/pci/pci_clp.c | 1 |
2 files changed, 3 insertions, 1 deletions
diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 882e233bc6ea..fa1fed450f74 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -132,7 +132,8 @@ struct zpci_dev { u8 rid_available : 1; u8 has_hp_slot : 1; u8 is_physfn : 1; - u8 reserved : 5; + u8 util_str_avail : 1; + u8 reserved : 4; unsigned int devfn; /* DEVFN part of the RID*/ struct mutex lock; diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c index 48bf3160e856..322689bec217 100644 --- a/arch/s390/pci/pci_clp.c +++ b/arch/s390/pci/pci_clp.c @@ -168,6 +168,7 @@ static int clp_store_query_pci_fn(struct zpci_dev *zdev, if (response->util_str_avail) { memcpy(zdev->util_str, response->util_str, sizeof(zdev->util_str)); + zdev->util_str_avail = 1; } zdev->mio_capable = response->mio_addr_avail; for (i = 0; i < PCI_STD_NUM_BARS; i++) { |