Bastian: this patchset converts the RISC-V decoder to decodetree in four major steps:
1) Convert 32-bit instructions to decodetree [Patch 1-15]:
Many of the gen_* functions are called by the decode functions for 16-bit
and 32-bit functions. If we move translation code from the gen_*
functions to the generated trans_* functions of decode-tree, we get a lot of
duplication. Therefore, we mostly generate calls to the old gen_* function
which are properly replaced after step 2).
Each of the trans_ functions are grouped into files corresponding to their
ISA extension, e.g. addi which is in RV32I is translated in the file
'trans_rvi.inc.c'.
2) Convert 16-bit instructions to decodetree [Patch 16-18]:
All 16 bit instructions have a direct mapping to a 32 bit instruction. Thus,
we convert the arguments in the 16 bit trans_ function to the arguments of
the corresponding 32 bit instruction and call the 32 bit trans_ function.
3) Remove old manual decoding in gen_* function [Patch 19-29]:
this move all manual translation code into the trans_* instructions of
decode tree, such that we can remove the old decode_* functions.
Palmer: This, with some additional cleanup patches, passed Alistar's
testing on rv32 and rv64 as well as my testing on rv64, so I think it's
good to go. I've run my standard test against this exact tag.
I still don't have a Mac to try this on, sorry!
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Merge remote-tracking branch 'remotes/palmer/tags/riscv-for-master-4.0-sf4' into staging
target/riscv: Convert to decodetree
Bastian: this patchset converts the RISC-V decoder to decodetree in four major steps:
1) Convert 32-bit instructions to decodetree [Patch 1-15]:
Many of the gen_* functions are called by the decode functions for 16-bit
and 32-bit functions. If we move translation code from the gen_*
functions to the generated trans_* functions of decode-tree, we get a lot of
duplication. Therefore, we mostly generate calls to the old gen_* function
which are properly replaced after step 2).
Each of the trans_ functions are grouped into files corresponding to their
ISA extension, e.g. addi which is in RV32I is translated in the file
'trans_rvi.inc.c'.
2) Convert 16-bit instructions to decodetree [Patch 16-18]:
All 16 bit instructions have a direct mapping to a 32 bit instruction. Thus,
we convert the arguments in the 16 bit trans_ function to the arguments of
the corresponding 32 bit instruction and call the 32 bit trans_ function.
3) Remove old manual decoding in gen_* function [Patch 19-29]:
this move all manual translation code into the trans_* instructions of
decode tree, such that we can remove the old decode_* functions.
Palmer: This, with some additional cleanup patches, passed Alistar's
testing on rv32 and rv64 as well as my testing on rv64, so I think it's
good to go. I've run my standard test against this exact tag.
I still don't have a Mac to try this on, sorry!
# gpg: Signature made Wed 13 Mar 2019 13:44:49 GMT
# gpg: using RSA key 00CE76D1834960DFCE886DF8EF4CA1502CCBAB41
# gpg: issuer "palmer@dabbelt.com"
# gpg: Good signature from "Palmer Dabbelt <palmer@dabbelt.com>" [unknown]
# gpg: aka "Palmer Dabbelt <palmer@sifive.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 00CE 76D1 8349 60DF CE88 6DF8 EF4C A150 2CCB AB41
* remotes/palmer/tags/riscv-for-master-4.0-sf4: (29 commits)
target/riscv: Remove decode_RV32_64G()
target/riscv: Remove gen_system()
target/riscv: Rename trans_arith to gen_arith
target/riscv: Remove manual decoding of RV32/64M insn
target/riscv: Remove shift and slt insn manual decoding
target/riscv: make ADD/SUB/OR/XOR/AND insn use arg lists
target/riscv: Move gen_arith_imm() decoding into trans_* functions
target/riscv: Remove manual decoding from gen_store()
target/riscv: Remove manual decoding from gen_load()
target/riscv: Remove manual decoding from gen_branch()
target/riscv: Remove gen_jalr()
target/riscv: Convert quadrant 2 of RVXC insns to decodetree
target/riscv: Convert quadrant 1 of RVXC insns to decodetree
target/riscv: Convert quadrant 0 of RVXC insns to decodetree
target/riscv: Convert RV priv insns to decodetree
target/riscv: Convert RV64D insns to decodetree
target/riscv: Convert RV32D insns to decodetree
target/riscv: Convert RV64F insns to decodetree
target/riscv: Convert RV32F insns to decodetree
target/riscv: Convert RV64A insns to decodetree
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
- file-posix: Make auto-read-only dynamic
- Add x-blockdev-reopen QMP command
- Finalize block-latency-histogram QMP command
- gluster: Build fixes for newer lib version
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Block layer patches:
- file-posix: Make auto-read-only dynamic
- Add x-blockdev-reopen QMP command
- Finalize block-latency-histogram QMP command
- gluster: Build fixes for newer lib version
# gpg: Signature made Tue 12 Mar 2019 19:30:31 GMT
# gpg: using RSA key 7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6
* remotes/kevin/tags/for-upstream: (28 commits)
qemu-iotests: Test the x-blockdev-reopen QMP command
block: Add an 'x-blockdev-reopen' QMP command
block: Remove the AioContext parameter from bdrv_reopen_multiple()
block: Add bdrv_reset_options_allowed()
block: Add a 'mutable_opts' field to BlockDriver
block: Allow changing the backing file on reopen
block: Allow omitting the 'backing' option in certain cases
block: Handle child references in bdrv_reopen_queue()
block: Add 'keep_old_opts' parameter to bdrv_reopen_queue()
block: Freeze the backing chain for the duration of the stream job
block: Freeze the backing chain for the duration of the mirror job
block: Freeze the backing chain for the duration of the commit job
block: Allow freezing BdrvChild links
nvme: fix write zeroes offset and count
file-posix: Make auto-read-only dynamic
file-posix: Prepare permission code for fd switching
file-posix: Lock new fd in raw_reopen_prepare()
file-posix: Store BDRVRawState.reopen_state during reopen
file-posix: Factor out raw_reconfigure_getfd()
file-posix: Fix bdrv_open_flags() for snapshot=on
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add support for pattern groups.
Other misc cleanups for multiple decode functions.
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Merge remote-tracking branch 'remotes/rth/tags/pull-dt-20190312' into staging
Break out documentation to docs/devel/.
Add support for pattern groups.
Other misc cleanups for multiple decode functions.
# gpg: Signature made Tue 12 Mar 2019 16:59:37 GMT
# gpg: using RSA key 64DF38E8AF7E215F
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F
* remotes/rth/tags/pull-dt-20190312:
decodetree: Properly diagnose fields overflowing an insn
decodetree: Prefix extract function names with decode_function
decodetree: Allow +- to begin a number initializing a field
decodetree: Produce clean output for an empty input file
decodetree: Add --static-decode option
test/decode: Add tests for PatternGroups
decodetree: Allow grouping of overlapping patterns
decodetree: Do not unconditionaly return from Pattern.output_code
decodetree: Ensure build_tree does not include values outside insnmask
decodetree: Document the usefulness of argument sets
decodetree: Move documentation to docs/devel/decodetree.rst
MAINTAINERS: Add scripts/decodetree.py to the TCG section
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
decodetree handles all instructions now so the fallback is not necessary
anymore.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Peer Adelt <peer.adelt@hni.uni-paderborn.de>
with all 16 bit insns moved to decodetree no path is falling back to
gen_system(), so we can remove it.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Peer Adelt <peer.adelt@hni.uni-paderborn.de>
manual decoding in gen_arith() is not necessary with decodetree. For now
the function is called trans_arith as the original gen_arith still
exists. The former will be renamed to gen_arith as soon as the old
gen_arith can be removed.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Peer Adelt <peer.adelt@hni.uni-paderborn.de>
gen_arith_imm() does a lot of decoding manually, which was hard to read
in case of the shift instructions and is not necessary anymore with
decodetree.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Peer Adelt <peer.adelt@hni.uni-paderborn.de>
With decodetree we don't need to convert RISC-V opcodes into to MemOps
as the old gen_store() did.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Peer Adelt <peer.adelt@hni.uni-paderborn.de>
With decodetree we don't need to convert RISC-V opcodes into to MemOps
as the old gen_load() did.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Peer Adelt <peer.adelt@hni.uni-paderborn.de>
We now utilizes argument-sets of decodetree such that no manual
decoding is necessary.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Peer Adelt <peer.adelt@hni.uni-paderborn.de>
trans_jalr() is the only caller, so move the code into trans_jalr().
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Peer Adelt <peer.adelt@hni.uni-paderborn.de>
we cannot remove the call to gen_arith() in decode_RV32_64G() since it
is used to translate multiply instructions.
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Peer Adelt <peer.adelt@hni.uni-paderborn.de>
this splits the 64-bit only instructions into its own decode file such
that we generate the decoder for these instructions only for the RISC-V
64 bit target.
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Peer Adelt <peer.adelt@hni.uni-paderborn.de>
for now only LUI & AUIPC are decoded and translated. If decodetree fails, we
fall back to the old decoder.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Peer Adelt <peer.adelt@hni.uni-paderborn.de>
This uses iconv to convert glyphs from the specified VGA font encoding to
unicode, and makes use of cchar_t instead of chtype when using ncursesw,
which allows to store all wide char as well as the WACS values. The default
charset is made CP437 since that is the charset of the hardware default VGA
font. This also makes the curses backend set the LC_CTYPE locale to "" to
allow curses to emit wide characters.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Cc: Eddie Kohler <ekohler@gmail.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190311135127.2229-3-samuel.thibault@ens-lyon.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
curses will use it for proper wide output support.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Message-Id: <20190311135127.2229-2-samuel.thibault@ens-lyon.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Currently we do device realization like below:
hotplug_handler_pre_plug()
dc->realize()
hotplug_handler_plug()
Before we do device realization and plug, we should allocate necessary
resources and check if memory-hotplug-support property is enabled.
At the piix4 and ich9, the memory-hotplug-support property is checked at
plug stage. This means that device has been realized and mapped into guest
address space 'pc_dimm_plug()' by the time acpi plug handler is called,
where it might fail and crash QEMU due to reaching g_assert_not_reached()
(piix4) or error_abort (ich9).
Fix it by checking if memory hotplug is enabled at pre_plug stage
where we can gracefully abort hotplug request.
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
CC: Igor Mammedov <imammedo@redhat.com>
CC: Eric Blake <eblake@redhat.com>
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20190301033548.6691-1-richardw.yang@linux.intel.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Claim ACS support in the generic PCIe root port to allow
passthrough of individual functions of a device to different
guests (in a nested virt.setting) with VFIO.
Without this patch, all functions of a device, such as all VFs of
an SR/IOV device, will end up in the same IOMMU group.
A similar situation occurs on Windows with Hyper-V.
In the single function device case, it also has a small cosmetic
benefit in that the root port itself is not grouped with
the device. VFIO handles that situation in that binding rules
only apply to endpoints, so it does not limit passthrough in
those cases.
Signed-off-by: Knut Omang <knut.omang@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <319460b483f566dd57487eb3dd340ed4c10aa53c.1550768238.git-series.knut.omang@oracle.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Implementing an ACS capability on downstream ports and multifunction
endpoints indicates isolation and IOMMU visibility to a finer
granularity. This creates smaller IOMMU groups in the guest and thus
more flexibility in assigning endpoints to guest userspace or an L2
guest.
Signed-off-by: Knut Omang <knut.omang@oracle.com>
Message-Id: <07489975121696f5573b0a92baaf3486ef51e35d.1550768238.git-series.knut.omang@oracle.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
This patch adds support for vhost-user-blk device to get/set
inflight buffer from/to backend.
Signed-off-by: Xie Yongji <xieyongji@baidu.com>
Signed-off-by: Zhang Yu <zhangyu31@baidu.com>
Message-Id: <20190228085355.9614-6-xieyongji@baidu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This patch adds support for VHOST_USER_GET_INFLIGHT_FD and
VHOST_USER_SET_INFLIGHT_FD message to set/get shared buffer
to/from qemu. Then backend can track inflight I/O in this buffer.
Signed-off-by: Xie Yongji <xieyongji@baidu.com>
Signed-off-by: Zhang Yu <zhangyu31@baidu.com>
Message-Id: <20190228085355.9614-5-xieyongji@baidu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Introduce vu_queue_map_desc() which should be
independent with vu_queue_pop();
Signed-off-by: Xie Yongji <xieyongji@baidu.com>
Signed-off-by: Zhang Yu <zhangyu31@baidu.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20190228085355.9614-4-xieyongji@baidu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The vu_check_queue_msg_file() has checked the FD flag. So let's
delete the redundant check after it.
Signed-off-by: Xie Yongji <xieyongji@baidu.com>
Signed-off-by: Zhang Yu <zhangyu31@baidu.com>
Message-Id: <20190228085355.9614-3-xieyongji@baidu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This patch introduces two new messages VHOST_USER_GET_INFLIGHT_FD
and VHOST_USER_SET_INFLIGHT_FD to support transferring a shared
buffer between qemu and backend.
Firstly, qemu uses VHOST_USER_GET_INFLIGHT_FD to get the
shared buffer from backend. Then qemu should send it back
through VHOST_USER_SET_INFLIGHT_FD each time we start vhost-user.
This shared buffer is used to track inflight I/O by backend.
Qemu should retrieve a new one when vm reset.
Signed-off-by: Xie Yongji <xieyongji@baidu.com>
Signed-off-by: Chai Wen <chaiwen@baidu.com>
Signed-off-by: Zhang Yu <zhangyu31@baidu.com>
Message-Id: <20190228085355.9614-2-xieyongji@baidu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The IO range is defined to 4 bytes with NVDIMM_ACPI_IO_LEN, so it is
more proper to use this macro instead of calculating it by sizeof.
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20190227075101.6263-4-richardw.yang@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
At the beginning or nvdimm_build_common_dsm(), variable *function* is
already allocated for Arg2.
This patch reuse variable *function* instead of allocating it again.
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20190227075101.6263-3-richardw.yang@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
>From dsm_dma_arrea to dsm_dma_area.
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Message-Id: <20190227075101.6263-2-richardw.yang@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
This patch adds an option to provide flexibility for user to expose
Scalable Mode to guest. User could expose Scalable Mode to guest by
the config as below:
"-device intel-iommu,caching-mode=on,scalable-mode=on"
The Linux iommu driver has supported scalable mode. Please refer below
patch set:
https://www.spinics.net/lists/kernel/msg2985279.html
Signed-off-by: Liu, Yi L <yi.l.liu@intel.com>
Signed-off-by: Yi Sun <yi.y.sun@linux.intel.com>
Message-Id: <1551753295-30167-4-git-send-email-yi.y.sun@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
