CMD_TLBI_S2_IPA: As S1+S2 is not enabled, for now this can be the
same as CMD_TLBI_NH_VAA.
CMD_TLBI_S12_VMALL: Added new function to invalidate TLB by VMID.
For stage-1 only commands, add a check to throw CERROR_ILL if used
when stage-1 is not supported.
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Mostafa Saleh <smostafa@google.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Message-id: 20230516203327.2051088-9-smostafa@google.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Allow TLB to be tagged with VMID.
If stage-1 is only supported, VMID is set to -1 and ignored from STE
and CMD_TLBI_NH* cmds.
Update smmu_iotlb_insert trace event to have vmid.
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: 20230516203327.2051088-8-smostafa@google.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In preparation for adding stage-2 support, add Stage-2 PTW code.
Only Aarch64 format is supported as stage-1.
Nesting stage-1 and stage-2 is not supported right now.
HTTU is not supported, SW is expected to maintain the Access flag.
This is described in the SMMUv3 manual(IHI 0070.E.a)
"5.2. Stream Table Entry" in "[181] S2AFFD".
This flag determines the behavior on access of a stage-2 page whose
descriptor has AF == 0:
- 0b0: An Access flag fault occurs (stall not supported).
- 0b1: An Access flag fault never occurs.
An Access fault takes priority over a Permission fault.
There are 3 address size checks for stage-2 according to
(IHI 0070.E.a) in "3.4. Address sizes".
- As nesting is not supported, input address is passed directly to
stage-2, and is checked against IAS.
We use cfg->oas to hold the OAS when stage-1 is not used, this is set
in the next patch.
This check is done outside of smmu_ptw_64_s2 as it is not part of
stage-2(it throws stage-1 fault), and the stage-2 function shouldn't
change it's behavior when nesting is supported.
When nesting is supported and we figure out how to combine TLB for
stage-1 and stage-2 we can move this check into the stage-1 function
as described in ARM DDI0487I.a in pseudocode
aarch64/translation/vmsa_translation/AArch64.S1Translate
aarch64/translation/vmsa_translation/AArch64.S1DisabledOutput
- Input to stage-2 is checked against s2t0sz, and throws stage-2
transaltion fault if exceeds it.
- Output of stage-2 is checked against effective PA output range.
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Mostafa Saleh <smostafa@google.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Tested-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Message-id: 20230516203327.2051088-5-smostafa@google.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In preparation for adding stage-2 support, rename smmu_ptw_64 to
smmu_ptw_64_s1 and refactor some of the code so it can be reused in
stage-2 page table walk.
Remove AA64 check from PTW as decode_cd already ensures that AA64 is
used, otherwise it faults with C_BAD_CD.
A stage member is added to SMMUPTWEventInfo to differentiate
between stage-1 and stage-2 ptw faults.
Add stage argument to trace_smmu_ptw_level be consistent with other
trace events.
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: 20230516203327.2051088-4-smostafa@google.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20230223065924.42503-5-jasowang@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Addresses targeting the second translation table (TTB1) in the SMMU have
all upper bits set (except for the top byte when TBI is enabled). Fix
the TTB1 check.
Reported-by: Ola Hugosson <ola.hugosson@arm.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Message-id: 20230214171921.1917916-3-jean-philippe@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Addresses targeting the second translation table (TTB1) in the SMMU have
all upper bits set. Ensure the IOMMU region covers all 64 bits.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20230214171921.1917916-2-jean-philippe@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Use the proper QOM type definition instead of magic string.
This also helps during eventual refactor while using git-grep.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230117193014.83502-1-philmd@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
When using Clang ("Apple clang version 14.0.0 (clang-1400.0.29.202)")
and building with -Wall we get:
hw/arm/smmu-common.c:173:33: warning: static function 'smmu_hash_remove_by_asid_iova' is used in an inline function with external linkage [-Wstatic-in-inline]
hw/arm/smmu-common.h:170:1: note: use 'static' to give inline function 'smmu_iotlb_inv_iova' internal linkage
void smmu_iotlb_inv_iova(SMMUState *s, int asid, dma_addr_t iova,
^
static
None of our code base require / use inlined functions with external
linkage. Some places use internal inlining in the hot path. These
two functions are certainly not in any hot path and don't justify
any inlining, so these are likely oversights rather than intentional.
Reported-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20221216214924.4711-3-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This function is not used anywhere outside this file,
so we can make the function "static void".
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20221216214924.4711-2-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Convert the TYPE_ARM_SMMU device to 3-phase reset. The legacy method
doesn't do anything that's invalid in the hold phase, so the
conversion is simple and not a behaviour change.
Note that we must convert this base class before we can convert the
TYPE_ARM_SMMUV3 subclass -- transitional support in Resettable
handles "chain to parent class reset" when the base class is 3-phase
and the subclass is still using legacy reset, but not the other way
around.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20221109161444.3397405-2-peter.maydell@linaro.org
Stop including exec/address-spaces.h in files that don't need it.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210416171314.2074665-5-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
As of today, the driver can invalidate a number of pages that is
not a power of 2. However IOTLB unmap notifications and internal
IOTLB invalidations work with masks leading to erroneous
invalidations.
In case the range is not a power of 2, split invalidations into
power of 2 invalidations.
When looking for a single page entry in the vSMMU internal IOTLB,
let's make sure that if the entry is not found using a
g_hash_table_remove() we iterate over all the entries to find a
potential range that overlaps it.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20210309102742.30442-6-eric.auger@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
If the asid is not set, do not attempt to locate the key directly
as all inserted keys have a valid asid.
Use g_hash_table_foreach_remove instead.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20210309102742.30442-5-eric.auger@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This way we can tell between regular IOMMUTLBEntry (entry of IOMMU
hardware) and notifications.
In the notifications, we set explicitly if it is a MAPs or an UNMAP,
instead of trusting in entry permissions to differentiate them.
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20201116165506.31315-3-eperezma@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Previous name didn't reflect the iommu operation.
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20201116165506.31315-2-eperezma@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
HAD is a mandatory features with SMMUv3.1 if S1P is set, which is
our case. Other 3.1 mandatory features come with S2P which we don't
have.
So let's support HAD and advertise SMMUv3.1 support in AIDR.
HAD support allows the CD to disable hierarchical attributes, ie.
if the HAD0/1 bit is set, the APTable field of table descriptors
walked through TTB0/1 is ignored.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200728150815.11446-11-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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>
At the moment each entry in the IOTLB corresponds to a page sized
mapping (4K, 16K or 64K), even if the page belongs to a mapped
block. In case of block mapping this unefficiently consumes IOTLB
entries.
Change the value of the entry so that it reflects the actual
mapping it belongs to (block or page start address and size).
Also the level/tg of the entry is encoded in the key. In subsequent
patches we will enable range invalidation. This latter is able
to provide the level/tg of the entry.
Encoding the level/tg directly in the key will allow to invalidate
using g_hash_table_remove() when num_pages equals to 1.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200728150815.11446-6-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Introduce a specialized SMMUTLBEntry to store the result of
the PTW and cache in the IOTLB. This structure extends the
generic IOMMUTLBEntry struct with the level of the entry and
the granule size.
Those latter will be useful when implementing range invalidation.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200728150815.11446-5-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Introduce the smmu_get_iotlb_key() helper and the
SMMU_IOTLB_ASID() macro. Also move smmu_get_iotlb_key and
smmu_iotlb_key_hash in the IOTLB related code section.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200728150815.11446-4-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add two helpers: one to lookup for a given IOTLB entry and
one to insert a new entry. We also move the tracing there.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200728150815.11446-3-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Page and block PTE decoding can share some code. Let's
first handle table PTE and factorize some code shared by
page and block PTEs.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200728150815.11446-2-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The smmu_find_smmu_pcibus() function was introduced (in commit
cac994ef43) in a code format that could return an incorrect
pointer, which was then fixed by the previous commit.
We could have avoided this by writing the if() statement
differently. Do it now, in case this function is re-used.
The code is easier to review (harder to miss bugs).
Acked-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Make sure a null SMMUPciBus is returned in case we were
not able to identify a pci bus matching the @bus_num.
This matches the fix done on intel iommu in commit:
a2e1cd41cc
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <20200226172628.17449-1-eric.auger@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Since its introduction in commit d86a77f8ab, dma_memory_read()
always accepted void pointer argument. Remove the unnecessary
casts.
This commit was produced with the included Coccinelle script
scripts/coccinelle/exec_rw_const.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
v4: Drop parenthesis when removing cast (Eric Blake)
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190709152053.16670-2-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
[Rebased onto merge commit 95a9457fd44; missed instances of qom/cpu.h
in comments replaced]
In my "build everything" tree, changing sysemu/sysemu.h triggers a
recompile of some 5400 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).
Almost a third of its inclusions are actually superfluous. Delete
them. Downgrade two more to qapi/qapi-types-run-state.h, and move one
from char/serial.h to char/serial.c.
hw/semihosting/config.c, monitor/monitor.c, qdev-monitor.c, and
stubs/semihost.c define variables declared in sysemu/sysemu.h without
including it. The compiler is cool with that, but include it anyway.
This doesn't reduce actual use much, as it's still included into
widely included headers. The next commit will tackle that.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190812052359.30071-27-armbru@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
The SMMUNotifierNode struct is not necessary and brings extra
complexity so let's remove it. We now directly track the SMMUDevices
which have registered IOMMU MR notifiers.
This is inspired from the same transformation on intel-iommu
done in commit b4a4ba0d68
("intel-iommu: remove IntelIOMMUNotifierNode")
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-id: 20190409160219.19026-1-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
At the point smmu_find_add_as() gets called, the bus number might
not be computed. Let's change the name of IOMMU memory region and
just use the devfn and an incrementing index.
The name only is used for debug.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20180921070138.10114-2-eric.auger@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: changed 'uint' to 'unsigned int']
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
smmu_iommu_mr() aims at returning the IOMMUMemoryRegion corresponding
to a given sid. The function extracts both the PCIe bus number and
the devfn to return this data. Current computation of devfn is wrong
as it only returns the PCIe function instead of slot | function.
Fixes 32cfd7f39e ("hw/arm/smmuv3: Cache/invalidate config data")
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Message-id: 1530775623-32399-1-git-send-email-eric.auger@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
On TLB invalidation commands, let's call registered
IOMMU notifiers. Those can only be UNMAP notifiers.
SMMUv3 does not support notification on MAP (VFIO).
This patch allows vhost use case where IOTLB API is notified
on each guest IOTLB invalidation.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1529653501-15358-5-git-send-email-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We emulate a TLB cache of size SMMU_IOTLB_MAX_SIZE=256.
It is implemented as a hash table whose key is a combination
of the 16b asid and 48b IOVA (Jenkins hash).
Entries are invalidated on TLB invalidation commands, either
globally, or per asid, or per asid/iova.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Message-id: 1529653501-15358-4-git-send-email-eric.auger@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Let's cache config data to avoid fetching and parsing STE/CD
structures on each translation. We invalidate them on data structure
invalidation commands.
We put in place a per-smmu mutex to protect the config cache. This
will be useful too to protect the IOTLB cache. The caches can be
accessed without BQL, ie. in IO dataplane. The same kind of mutex was
put in place in the intel viommu.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1529653501-15358-3-git-send-email-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Coverity points out that this can overflow if n > 31,
because it's only doing 32-bit arithmetic. Let's use 1ULL instead
of 1. Also the formulae used to compute n can be replaced by
the level_shift() macro.
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 1526493784-25328-3-git-send-email-eric.auger@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This patch implements the page table walk for VMSAv8-64.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Prem Mallappa <prem.mallappa@broadcom.com>
Message-id: 1524665762-31355-4-git-send-email-eric.auger@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We set up the infrastructure to enumerate all the PCI devices
attached to the SMMU and create an associated IOMMU memory
region and address space.
Those info are stored in SMMUDevice objects. The devices are
grouped according to the PCIBus they belong to. A hash table
indexed by the PCIBus pointer is used. Also an array indexed by
the bus number allows to find the list of SMMUDevices.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Prem Mallappa <prem.mallappa@broadcom.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1524665762-31355-3-git-send-email-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The patch introduces the smmu base device and class for the ARM
smmu. Devices for specific versions will be derived from this
base device.
We also introduce some important datatypes.
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Prem Mallappa <prem.mallappa@broadcom.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1524665762-31355-2-git-send-email-eric.auger@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
