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From de6319fe0ce09297beae5ff4636c03217abe6f26 Mon Sep 17 00:00:00 2001
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From: Matthew Rosato <mjrosato@linux.ibm.com>
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Date: Fri, 3 Dec 2021 09:27:06 -0500
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Subject: [PATCH 04/42] s390x/pci: add supported DT information to clp response
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Cédric Le Goater <clg@redhat.com>
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RH-MergeRequest: 226: s390: Enhanced Interpretation for PCI Functions and Secure Execution guest dump
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RH-Bugzilla: 1664378 2043909
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RH-Acked-by: Thomas Huth <thuth@redhat.com>
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RH-Acked-by: Cornelia Huck <cohuck@redhat.com>
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RH-Acked-by: Jon Maloy <jmaloy@redhat.com>
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RH-Commit: [4/41] 275668f6d38fbc1dfa2f1aa8f58b2c319de2657d
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The DTSM is a mask that specifies which I/O Address Translation designation
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types are supported. Today QEMU only supports DT=1.
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Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
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Reviewed-by: Eric Farman <farman@linux.ibm.com>
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Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
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Message-Id: <20211203142706.427279-5-mjrosato@linux.ibm.com>
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Signed-off-by: Thomas Huth <thuth@redhat.com>
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(cherry picked from commit ac6aa30ac47b2abaf142f76de46374da2a98f6e7)
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Signed-off-by: Cédric Le Goater <clg@redhat.com>
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---
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hw/s390x/s390-pci-bus.c | 1 +
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hw/s390x/s390-pci-inst.c | 1 +
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hw/s390x/s390-pci-vfio.c | 1 +
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include/hw/s390x/s390-pci-bus.h | 1 +
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include/hw/s390x/s390-pci-clp.h | 3 ++-
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5 files changed, 6 insertions(+), 1 deletion(-)
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diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c
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index 1b51a72838..01b58ebc70 100644
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--- a/hw/s390x/s390-pci-bus.c
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+++ b/hw/s390x/s390-pci-bus.c
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@@ -782,6 +782,7 @@ static void s390_pci_init_default_group(void)
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resgrp->i = 128;
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resgrp->maxstbl = 128;
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resgrp->version = 0;
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+ resgrp->dtsm = ZPCI_DTSM;
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}
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static void set_pbdev_info(S390PCIBusDevice *pbdev)
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diff --git a/hw/s390x/s390-pci-inst.c b/hw/s390x/s390-pci-inst.c
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index 07bab85ce5..6d400d4147 100644
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--- a/hw/s390x/s390-pci-inst.c
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+++ b/hw/s390x/s390-pci-inst.c
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@@ -329,6 +329,7 @@ int clp_service_call(S390CPU *cpu, uint8_t r2, uintptr_t ra)
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stw_p(&resgrp->i, group->zpci_group.i);
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stw_p(&resgrp->maxstbl, group->zpci_group.maxstbl);
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resgrp->version = group->zpci_group.version;
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+ resgrp->dtsm = group->zpci_group.dtsm;
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stw_p(&resgrp->hdr.rsp, CLP_RC_OK);
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break;
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}
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diff --git a/hw/s390x/s390-pci-vfio.c b/hw/s390x/s390-pci-vfio.c
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index 2a153fa8c9..6f80a47e29 100644
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--- a/hw/s390x/s390-pci-vfio.c
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+++ b/hw/s390x/s390-pci-vfio.c
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@@ -160,6 +160,7 @@ static void s390_pci_read_group(S390PCIBusDevice *pbdev,
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resgrp->i = cap->noi;
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resgrp->maxstbl = cap->maxstbl;
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resgrp->version = cap->version;
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+ resgrp->dtsm = ZPCI_DTSM;
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}
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}
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diff --git a/include/hw/s390x/s390-pci-bus.h b/include/hw/s390x/s390-pci-bus.h
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index 2727e7bdef..da3cde2bb4 100644
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--- a/include/hw/s390x/s390-pci-bus.h
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+++ b/include/hw/s390x/s390-pci-bus.h
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@@ -37,6 +37,7 @@
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#define ZPCI_MAX_UID 0xffff
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#define UID_UNDEFINED 0
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#define UID_CHECKING_ENABLED 0x01
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+#define ZPCI_DTSM 0x40
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OBJECT_DECLARE_SIMPLE_TYPE(S390pciState, S390_PCI_HOST_BRIDGE)
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OBJECT_DECLARE_SIMPLE_TYPE(S390PCIBus, S390_PCI_BUS)
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diff --git a/include/hw/s390x/s390-pci-clp.h b/include/hw/s390x/s390-pci-clp.h
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index 96b8e3f133..cc8c8662b8 100644
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--- a/include/hw/s390x/s390-pci-clp.h
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+++ b/include/hw/s390x/s390-pci-clp.h
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@@ -163,7 +163,8 @@ typedef struct ClpRspQueryPciGrp {
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uint8_t fr;
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uint16_t maxstbl;
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uint16_t mui;
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- uint64_t reserved3;
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+ uint8_t dtsm;
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+ uint8_t reserved3[7];
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uint64_t dasm; /* dma address space mask */
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uint64_t msia; /* MSI address */
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uint64_t reserved4;
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--
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2.37.3
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