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From 67ebb71d56e95adf185ab4971939e31c4c899863 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 09:27:04 -0500
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Subject: [PATCH 02/42] s390x/pci: don't use hard-coded dma range in reg_ioat
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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: [2/41] c7897321f9848ef8f115130832774bbcd6724f03
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Instead use the values from clp info, they will either be the hard-coded
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values or what came from the host driver via vfio.
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Fixes: 9670ee752727 ("s390x/pci: use a PCI Function structure")
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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: <20211203142706.427279-3-mjrosato@linux.ibm.com>
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Signed-off-by: Thomas Huth <thuth@redhat.com>
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(cherry picked from commit df7ce0a94d9283f0656b4bc0f21566973ff649a3)
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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-inst.c | 9 +++++----
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1 file changed, 5 insertions(+), 4 deletions(-)
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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 1c8ad91175..11b7f6bfa1 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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@@ -916,9 +916,10 @@ int pci_dereg_irqs(S390PCIBusDevice *pbdev)
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return 0;
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}
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-static int reg_ioat(CPUS390XState *env, S390PCIIOMMU *iommu, ZpciFib fib,
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+static int reg_ioat(CPUS390XState *env, S390PCIBusDevice *pbdev, ZpciFib fib,
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uintptr_t ra)
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{
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+ S390PCIIOMMU *iommu = pbdev->iommu;
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uint64_t pba = ldq_p(&fib.pba);
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uint64_t pal = ldq_p(&fib.pal);
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uint64_t g_iota = ldq_p(&fib.iota);
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@@ -927,7 +928,7 @@ static int reg_ioat(CPUS390XState *env, S390PCIIOMMU *iommu, ZpciFib fib,
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pba &= ~0xfff;
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pal |= 0xfff;
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- if (pba > pal || pba < ZPCI_SDMA_ADDR || pal > ZPCI_EDMA_ADDR) {
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+ if (pba > pal || pba < pbdev->zpci_fn.sdma || pal > pbdev->zpci_fn.edma) {
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s390_program_interrupt(env, PGM_OPERAND, ra);
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return -EINVAL;
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}
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@@ -1125,7 +1126,7 @@ int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar,
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} else if (pbdev->iommu->enabled) {
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cc = ZPCI_PCI_LS_ERR;
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s390_set_status_code(env, r1, ZPCI_MOD_ST_SEQUENCE);
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- } else if (reg_ioat(env, pbdev->iommu, fib, ra)) {
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+ } else if (reg_ioat(env, pbdev, fib, ra)) {
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cc = ZPCI_PCI_LS_ERR;
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s390_set_status_code(env, r1, ZPCI_MOD_ST_INSUF_RES);
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}
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@@ -1150,7 +1151,7 @@ int mpcifc_service_call(S390CPU *cpu, uint8_t r1, uint64_t fiba, uint8_t ar,
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s390_set_status_code(env, r1, ZPCI_MOD_ST_SEQUENCE);
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} else {
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pci_dereg_ioat(pbdev->iommu);
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- if (reg_ioat(env, pbdev->iommu, fib, ra)) {
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+ if (reg_ioat(env, pbdev, fib, ra)) {
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cc = ZPCI_PCI_LS_ERR;
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s390_set_status_code(env, r1, ZPCI_MOD_ST_INSUF_RES);
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}
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--
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2.37.3
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