OpenE2K/qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

hw/arm/smmuv3: Add stage-2 support in iova notifier

Browse Source 
In smmuv3_notify_iova, read the granule based on translation stage
and use VMID if valid value is sent.

Signed-off-by: Mostafa Saleh <smostafa@google.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Message-id: 20230516203327.2051088-10-smostafa@google.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Mostafa Saleh 2023-05-25 10:37:51 +01:00 committed by Peter Maydell
parent ccc3ee3871
commit 32bd7baec2
2 changed files with 27 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
hw/arm/smmuv3.c
View File

@ -1000,18 +1000,21 @@ epilogue:
* @mr: IOMMU mr region handle
* @n: notifier to be called
* @asid: address space ID or negative value if we don't care
* @vmid: virtual machine ID or negative value if we don't care
* @iova: iova
* @tg: translation granule (if communicated through range invalidation)
* @num_pages: number of @granule sized pages (if tg != 0), otherwise 1
*/
static void smmuv3_notify_iova(IOMMUMemoryRegion *mr,
IOMMUNotifier *n,
int asid, dma_addr_t iova,
uint8_t tg, uint64_t num_pages)
int asid, int vmid,
dma_addr_t iova, uint8_t tg,
uint64_t num_pages)
{
SMMUDevice *sdev = container_of(mr, SMMUDevice, iommu);
IOMMUTLBEvent event;
uint8_t granule;
SMMUv3State *s = sdev->smmu;
if (!tg) {
SMMUEventInfo event = {.inval_ste_allowed = true};
@ -1026,11 +1029,20 @@ static void smmuv3_notify_iova(IOMMUMemoryRegion *mr,
return;
}
tt = select_tt(cfg, iova);
if (!tt) {
if (vmid >= 0 && cfg->s2cfg.vmid != vmid) {
return;
}
granule = tt->granule_sz;
if (STAGE1_SUPPORTED(s)) {
tt = select_tt(cfg, iova);
if (!tt) {
return;
}
granule = tt->granule_sz;
} else {
granule = cfg->s2cfg.granule_sz;
}
} else {
granule = tg * 2 + 10;
}
@ -1044,9 +1056,10 @@ static void smmuv3_notify_iova(IOMMUMemoryRegion *mr,
memory_region_notify_iommu_one(n, &event);
}
/* invalidate an asid/iova range tuple in all mr's */
static void smmuv3_inv_notifiers_iova(SMMUState *s, int asid, dma_addr_t iova,
uint8_t tg, uint64_t num_pages)
/* invalidate an asid/vmid/iova range tuple in all mr's */
static void smmuv3_inv_notifiers_iova(SMMUState *s, int asid, int vmid,
dma_addr_t iova, uint8_t tg,
uint64_t num_pages)
{
SMMUDevice *sdev;
@ -1054,11 +1067,11 @@ static void smmuv3_inv_notifiers_iova(SMMUState *s, int asid, dma_addr_t iova,
IOMMUMemoryRegion *mr = &sdev->iommu;
IOMMUNotifier *n;
trace_smmuv3_inv_notifiers_iova(mr->parent_obj.name, asid, iova,
tg, num_pages);
trace_smmuv3_inv_notifiers_iova(mr->parent_obj.name, asid, vmid,
iova, tg, num_pages);
IOMMU_NOTIFIER_FOREACH(n, mr) {
smmuv3_notify_iova(mr, n, asid, iova, tg, num_pages);
smmuv3_notify_iova(mr, n, asid, vmid, iova, tg, num_pages);
}
}
}
@ -1089,7 +1102,7 @@ static void smmuv3_range_inval(SMMUState *s, Cmd *cmd)
if (!tg) {
trace_smmuv3_range_inval(vmid, asid, addr, tg, 1, ttl, leaf);
smmuv3_inv_notifiers_iova(s, asid, addr, tg, 1);
smmuv3_inv_notifiers_iova(s, asid, vmid, addr, tg, 1);
smmu_iotlb_inv_iova(s, asid, vmid, addr, tg, 1, ttl);
return;
}
@ -1107,7 +1120,7 @@ static void smmuv3_range_inval(SMMUState *s, Cmd *cmd)
num_pages = (mask + 1) >> granule;
trace_smmuv3_range_inval(vmid, asid, addr, tg, num_pages, ttl, leaf);
smmuv3_inv_notifiers_iova(s, asid, addr, tg, num_pages);
smmuv3_inv_notifiers_iova(s, asid, vmid, addr, tg, num_pages);
smmu_iotlb_inv_iova(s, asid, vmid, addr, tg, num_pages, ttl);
addr += mask + 1;
}

2
hw/arm/trace-events
View File

@ -53,5 +53,5 @@ smmuv3_cmdq_tlbi_s12_vmid(uint16_t vmid) "vmid=%d"
smmuv3_config_cache_inv(uint32_t sid) "Config cache INV for sid=0x%x"
smmuv3_notify_flag_add(const char *iommu) "ADD SMMUNotifier node for iommu mr=%s"
smmuv3_notify_flag_del(const char *iommu) "DEL SMMUNotifier node for iommu mr=%s"
smmuv3_inv_notifiers_iova(const char *name, uint16_t asid, uint64_t iova, uint8_t tg, uint64_t num_pages) "iommu mr=%s asid=%d iova=0x%"PRIx64" tg=%d num_pages=0x%"PRIx64
smmuv3_inv_notifiers_iova(const char *name, uint16_t asid, uint16_t vmid, uint64_t iova, uint8_t tg, uint64_t num_pages) "iommu mr=%s asid=%d vmid=%d iova=0x%"PRIx64" tg=%d num_pages=0x%"PRIx64