From 10e19d492a326afe7f016a8735ccdfd7c65fc979 Mon Sep 17 00:00:00 2001 From: Nicolin Chen Date: Fri, 22 Jul 2022 19:02:49 -0700 Subject: vfio/ap: Pass in physical address of ind to ap_aqic() The ap_aqic() is called by vfio_ap_irq_enable() where it passes in a virt value that's casted from a physical address "h_nib". Inside the ap_aqic(), it does virt_to_phys() again. Since ap_aqic() needs a physical address, let's just pass in a pa of ind directly. So change the "ind" to "pa_ind". Reviewed-by: Harald Freudenberger Reviewed-by: Jason Gunthorpe Tested-by: Eric Farman Signed-off-by: Nicolin Chen Link: https://lore.kernel.org/r/20220723020256.30081-4-nicolinc@nvidia.com Signed-off-by: Alex Williamson --- arch/s390/include/asm/ap.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/s390/include/asm') diff --git a/arch/s390/include/asm/ap.h b/arch/s390/include/asm/ap.h index b515cfa62bd9..f508f5025e38 100644 --- a/arch/s390/include/asm/ap.h +++ b/arch/s390/include/asm/ap.h @@ -227,13 +227,13 @@ struct ap_qirq_ctrl { * ap_aqic(): Control interruption for a specific AP. * @qid: The AP queue number * @qirqctrl: struct ap_qirq_ctrl (64 bit value) - * @ind: The notification indicator byte + * @pa_ind: Physical address of the notification indicator byte * * Returns AP queue status. */ static inline struct ap_queue_status ap_aqic(ap_qid_t qid, struct ap_qirq_ctrl qirqctrl, - void *ind) + phys_addr_t pa_ind) { unsigned long reg0 = qid | (3UL << 24); /* fc 3UL is AQIC */ union { @@ -241,7 +241,7 @@ static inline struct ap_queue_status ap_aqic(ap_qid_t qid, struct ap_qirq_ctrl qirqctrl; struct ap_queue_status status; } reg1; - unsigned long reg2 = virt_to_phys(ind); + unsigned long reg2 = pa_ind; reg1.qirqctrl = qirqctrl; -- cgit v1.2.3-59-g8ed1b