Commit 517fe298 authored by Matthew Rosato's avatar Matthew Rosato Committed by Alex Williamson
Browse files

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: default avatarMatthew Rosato <mjrosato@linux.ibm.com>
Acked-by: default avatarNiklas Schnelle <schnelle@linux.ibm.com>
Acked-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
Acked-by: default avatarCornelia Huck <cohuck@redhat.com>
Signed-off-by: default avatarAlex Williamson <alex.williamson@redhat.com>
parent dc8c638d

arch/s390/include/asm/pci.h

+2 −1
Original line number Diff line number Diff line
@@ -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;

arch/s390/pci/pci_clp.c

+1 −0
Original line number Diff line number Diff line
@@ -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++) {

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