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From c08c3fbb2bb8494738fd34ec8fc9dc434ce82f4b Mon Sep 17 00:00:00 2001
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From: Eric Auger <eric.auger@redhat.com>
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Date: Wed, 2 Feb 2022 12:16:02 +0100
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Subject: [PATCH 12/12] hw/arm/smmuv3: Fix device reset
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RH-Author: Eric Auger <eric.auger@redhat.com>
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RH-MergeRequest: 72: hw/arm/smmuv3: Fix device reset
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RH-Commit: [1/1] 2cfee2f7a03692681224fed96bb4f28406bf460a (eauger1/centos-qemu-kvm)
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RH-Bugzilla: 2042481
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Acked-by: Peter Xu <peterx@redhat.com>
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RH-Acked-by: Andrew Jones <drjones@redhat.com>
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branch: c9s
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Brew: 42958737
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Upstream: yes
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We currently miss a bunch of register resets in the device reset
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function. This sometimes prevents the guest from rebooting after
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a system_reset (with virtio-blk-pci). For instance, we may get
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the following errors:
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invalid STE
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smmuv3-iommu-memory-region-0-0 translation failed for iova=0x13a9d2000(SMMU_EVT_C_BAD_STE)
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Invalid read at addr 0x13A9D2000, size 2, region '(null)', reason: rejected
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invalid STE
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smmuv3-iommu-memory-region-0-0 translation failed for iova=0x13a9d2000(SMMU_EVT_C_BAD_STE)
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Invalid write at addr 0x13A9D2000, size 2, region '(null)', reason: rejected
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invalid STE
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Signed-off-by: Eric Auger <eric.auger@redhat.com>
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Message-id: 20220202111602.627429-1-eric.auger@redhat.com
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Fixes: 10a83cb988 ("hw/arm/smmuv3: Skeleton")
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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
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Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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(cherry picked from commit 43530095e18fd16dcd51a4b385ad2a22c36f5698)
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Signed-off-by: Eric Auger <eric.auger@redhat.com>
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---
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hw/arm/smmuv3.c | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
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index 01b60bee49..1b5640bb98 100644
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--- a/hw/arm/smmuv3.c
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+++ b/hw/arm/smmuv3.c
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@@ -276,6 +276,12 @@ static void smmuv3_init_regs(SMMUv3State *s)
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s->features = 0;
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s->sid_split = 0;
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s->aidr = 0x1;
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+ s->cr[0] = 0;
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+ s->cr0ack = 0;
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+ s->irq_ctrl = 0;
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+ s->gerror = 0;
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+ s->gerrorn = 0;
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+ s->statusr = 0;
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}
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static int smmu_get_ste(SMMUv3State *s, dma_addr_t addr, STE *buf,
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--
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2.27.0
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