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hw/arm/smmuv3: Get prepared for range invalidation

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Enhance the smmu_iotlb_inv_iova() helper with range invalidation.
This uses the new fields passed in the NH_VA and NH_VAA commands:
the size of the range, the level and the granule.

As NH_VA and NH_VAA both use those fields, their decoding and
handling is factorized in a new smmuv3_s1_range_inval() helper.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200728150815.11446-8-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Eric Auger 2020-07-28 17:08:11 +02:00 • committed by Peter Maydell
parent c0f9ef7037
commit d52915616c
5 changed files with 69 additions and 31 deletions
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25
hw/arm/smmu-common.c
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@ -143,15 +143,30 @@ static gboolean smmu_hash_remove_by_asid_iova(gpointer key, gpointer value,
if (info->asid >= 0 && info->asid != SMMU_IOTLB_ASID(iotlb_key)) {
return false;
}
return (info->iova & ~entry->addr_mask) == entry->iova;
return ((info->iova & ~entry->addr_mask) == entry->iova) ||
((entry->iova & ~info->mask) == info->iova);
}
inline void smmu_iotlb_inv_iova(SMMUState *s, int asid, dma_addr_t iova)
inline void
smmu_iotlb_inv_iova(SMMUState *s, int asid, dma_addr_t iova,
uint8_t tg, uint64_t num_pages, uint8_t ttl)
{
SMMUIOTLBPageInvInfo info = {.asid = asid, .iova = iova};
if (ttl && (num_pages == 1)) {
SMMUIOTLBKey key = smmu_get_iotlb_key(asid, iova, tg, ttl);
trace_smmu_iotlb_inv_iova(asid, iova);
g_hash_table_foreach_remove(s->iotlb, smmu_hash_remove_by_asid_iova, &info);
g_hash_table_remove(s->iotlb, &key);
} else {
/* if tg is not set we use 4KB range invalidation */
uint8_t granule = tg ? tg * 2 + 10 : 12;
SMMUIOTLBPageInvInfo info = {
.asid = asid, .iova = iova,
.mask = (num_pages * 1 << granule) - 1};
g_hash_table_foreach_remove(s->iotlb,
smmu_hash_remove_by_asid_iova,
&info);
}
}
inline void smmu_iotlb_inv_asid(SMMUState *s, uint16_t asid)