- Provide a proper PCI-ISA bridge
- Set PCI device IDs correctly
- Pass -nographic flag to PALcode
- Update PALcode to set up the Console Terminal Block
- Honor the Floating-point ENable bit during translate.
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Merge remote-tracking branch 'remotes/rth-gitlab/tags/pull-axp-20210628' into staging
Fixes for NetBSD/alpha:
- Provide a proper PCI-ISA bridge
- Set PCI device IDs correctly
- Pass -nographic flag to PALcode
- Update PALcode to set up the Console Terminal Block
- Honor the Floating-point ENable bit during translate.
# gpg: Signature made Mon 28 Jun 2021 15:34:08 BST
# gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg: issuer "richard.henderson@linaro.org"
# 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-gitlab/tags/pull-axp-20210628:
target/alpha: Honor the FEN bit
pc-bios: Update the palcode-clipper image
hw/alpha: Provide a PCI-ISA bridge device node
hw/alpha: Provide console information to the PALcode at start-up
hw/alpha: Set minimum PCI device ID to 1 to match Clipper IRQ mappings
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This bit is used by NetBSD for lazy fpu migration.
Tested-by: Jason Thorpe <thorpej@me.com>
Reported-by: Jason Thorpe <thorpej@me.com>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/438
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
- Fix MISA in the DisasContext
- Fix GDB CSR XML generation
- QOMify the SiFive UART
- Add support for the OpenTitan timer
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Merge remote-tracking branch 'remotes/alistair/tags/pull-riscv-to-apply-20210624-2' into staging
Third RISC-V PR for 6.1 release
- Fix MISA in the DisasContext
- Fix GDB CSR XML generation
- QOMify the SiFive UART
- Add support for the OpenTitan timer
# gpg: Signature made Thu 24 Jun 2021 13:00:26 BST
# gpg: using RSA key F6C4AC46D4934868D3B8CE8F21E10D29DF977054
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [full]
# Primary key fingerprint: F6C4 AC46 D493 4868 D3B8 CE8F 21E1 0D29 DF97 7054
* remotes/alistair/tags/pull-riscv-to-apply-20210624-2:
hw/riscv: OpenTitan: Connect the mtime and mtimecmp timer
hw/timer: Initial commit of Ibex Timer
hw/char/ibex_uart: Make the register layout private
hw/char: QOMify sifive_uart
hw/char: Consistent function names for sifive_uart
target/riscv: gdbstub: Fix dynamic CSR XML generation
target/riscv: Use target_ulong for the DisasContext misa
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Linux 5.14 will add support for nested TSC scaling. Add the
corresponding feature in QEMU; to keep support for existing kernels,
do not add it to any processor yet.
The handling of the VMCS enumeration MSR is ugly; once we have more than
one case, we may want to add a table to check VMX features against.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We don't need to maintain 2 sets of decodetree definitions.
Merge them into a single file.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210617174636.2902654-3-f4bug@amsat.org>
Only trans_MSA() calls gen_msa(), inline it to simplify.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210617174636.2902654-2-f4bug@amsat.org>
Since all entries are no more than 3/4/6 bytes (including nul
terminator), can save space and pie runtime relocations by
declaring regnames[] as array of 3/4/6 const char.
Inspired-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210617174323.2900831-10-f4bug@amsat.org>
Keep host_to_mips_errno[] in .rodata by marking the array const.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210617174323.2900831-9-f4bug@amsat.org>
Per the "MIPS® Architecture Extension: nanoMIPS32 DSP Technical
Reference Manual — Revision 0.04" p. 88 "BPOSGE32C", offset argument (imm)
should be left-shifted first.
This change was tested against test_dsp_r1_bposge32.c DSP test.
Reported-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>
Signed-off-by: Filip Vidojevic <filip.vidojevic@syrmia.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <VI1PR0302MB34869449EE56F226FC3C21129C309@VI1PR0302MB3486.eurprd03.prod.outlook.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
These switch cases for the microMIPS BPOSGE32 / BPOSGE64 opcodes have
been added commit 3c824109da ("target-mips: microMIPS ASE support").
More than 11 years later it is safe to assume there won't be added
soon. The cases fall back to the default which generates a RESERVED
INSTRUCTION, so it is safe to remove them.
Functionally speaking, the patch is a no-op.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210617174323.2900831-8-f4bug@amsat.org>
These placeholder comments for SmartMIPS and MDMX extensions have
been added commit 3c824109da ("target-mips: microMIPS ASE support").
More than 11 years later it is safe to assume there won't be added
soon, so remove these unuseful comments.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210617174323.2900831-7-f4bug@amsat.org>
Commit 043715d1e0 ("target/mips: Update ITU to utilize SAARI
and SAAR CP0 registers") declared itc_reconfigure() in public
namespace, while it is restricted to system emulation.
Similarly commit 5679479b9a ("target/mips: Move CP0 helpers
to sysemu/cp0.c") restricted cpu_mips_soft_irq() definition to
system emulation, but forgot to restrict its declaration.
To avoid polluting user-mode emulation with these declarations,
restrict them to sysemu. Also restrict the sysemu ITU/ITC/IRQ
fields from CPUMIPSState.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210617174323.2900831-6-f4bug@amsat.org>
We moved various TCG source files in commit a2b0a27d33
("target/mips: Move TCG source files under tcg/ sub directory")
but forgot to move the header declaring their prototypes.
Do it now, since all it declares is TCG specific.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210617174323.2900831-5-f4bug@amsat.org>
Commit a2b0a27d33 ("target/mips: Move TCG source files under
tcg/ sub directory") forgot to move the trace-event file.
As it only contains TCG events, move it for consistency.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210617174323.2900831-4-f4bug@amsat.org>
On real hardware an invalid instruction doesn't halt the world,
but usually triggers a RESERVED INSTRUCTION exception.
TCG guest code shouldn't abort QEMU anyway.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210617174323.2900831-2-f4bug@amsat.org>
Per the "MIPS® DSP Module for MIPS64 Architecture" manual, rev. 3.02,
Table 5.3 "SPECIAL3 Encoding of Function Field for DSP Module":
If the Module/ASE is not implemented, executing such an instruction
must cause a Reserved Instruction Exception.
The DINSV instruction lists the following exceptions:
- Reserved Instruction
- DSP Disabled
If the MIPS core doesn't support the DSP module, or the DSP is
disabled, do not handle the '$rt = $0' case as a no-op but raise
the proper exception instead.
Cc: Jia Liu <proljc@gmail.com>
Fixes: 1cb6686cf9 ("target-mips: Add ASE DSP bit/manipulation instructions")
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210529165443.1114402-1-f4bug@amsat.org>
Fix multiple TCG temporary leaks in gen_pool32a5_nanomips_insn().
Fixes: 3285a3e444 ("target/mips: Add emulation of DSP ASE for nanoMIPS - part 1")
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210617174323.2900831-3-f4bug@amsat.org>
Fix a pair of TCG temporary leak when translating nanoMIPS SHILO opcode.
Fixes: 3285a3e444 ("target/mips: Add emulation of DSP ASE for nanoMIPS")
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210530094538.1275329-1-f4bug@amsat.org>
Use the BIT_ULL() macro to ensure we use 64-bit arithmetic.
This fixes the following Coverity issue (OVERFLOW_BEFORE_WIDEN):
CID 1452921: Integer handling issues:
Potentially overflowing expression "1 << w" with type "int"
(32 bits, signed) is evaluated using 32-bit arithmetic, and
then used in a context that expects an expression of type
"uint64_t" (64 bits, unsigned).
Fixes: 074cfcb4da ("target/mips: Implement hardware page table walker")
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210505215119.1517465-1-f4bug@amsat.org>
MTE3 introduces an asymmetric tag checking mode, in which loads are
checked synchronously and stores are checked asynchronously. Add
support for it.
Signed-off-by: Peter Collingbourne <pcc@google.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210616195614.11785-1-pcc@google.com
[PMM: Add line to emulation.rst]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
In a CPU with MVE, the VMOV (vector lane to general-purpose register)
and VMOV (general-purpose register to vector lane) insns are not
predicated, but they are subject to beatwise execution if they
are not in an IT block.
Since our implementation always executes all 4 beats in one tick,
this means only that we need to handle PSR.ECI:
* we must do the usual check for bad ECI state
* we must advance ECI state if the insn succeeds
* if ECI says we should not be executing the beat corresponding
to the lane of the vector register being accessed then we
should skip performing the move
Note that if PSR.ECI is non-zero then we cannot be in an IT block.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-45-peter.maydell@linaro.org
Implement the MVE VADDV insn, which performs an addition
across vector lanes.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-44-peter.maydell@linaro.org
Implement the MVE VHCADD insn, which is similar to VCADD
but performs a halving step. This one overlaps with VADC.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-43-peter.maydell@linaro.org
Implement the MVE VCADD insn, which performs a complex add with
rotate. Note that the size=0b11 encoding is VSBC.
The architecture grants some leeway for the "destination and Vm
source overlap" case for the size MO_32 case, but we choose not to
make use of it, instead always calculating all 16 bytes worth of
results before setting the destination register.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-42-peter.maydell@linaro.org
Implement the MVE VADC and VSBC insns. These perform an
add-with-carry or subtract-with-carry of the 32-bit elements in each
lane of the input vectors, where the carry-out of each add is the
carry-in of the next. The initial carry input is either 1 or is from
FPSCR.C; the carry out at the end is written back to FPSCR.C.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-41-peter.maydell@linaro.org
Implement the MVE VRHADD insn, which performs a rounded halving
addition.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-40-peter.maydell@linaro.org
Implement the vector form of the MVE VQDMULL insn.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-39-peter.maydell@linaro.org
Implement the MVE VQDMLSDH and VQRDMLSDH insns, which are
like VQDMLADH and VQRDMLADH except that products are subtracted
rather than added.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-38-peter.maydell@linaro.org
Implement the MVE VQDMLADH and VQRDMLADH insns. These multiply
elements, and then add pairs of products, double, possibly round,
saturate and return the high half of the result.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-37-peter.maydell@linaro.org
Implement the MV VQRSHL (vector) insn. Again, the code to perform
the actual shifts is borrowed from neon_helper.c.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-34-peter.maydell@linaro.org
Implement the MVE VQSHL insn (encoding T4, which is the
vector-shift-by-vector version).
The DO_SQSHL_OP and DO_UQSHL_OP macros here are derived from
the neon_helper.c code for qshl_u{8,16,32} and qshl_s{8,16,32}.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-33-peter.maydell@linaro.org
Implement the vector forms of the MVE VQADD and VQSUB insns.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-32-peter.maydell@linaro.org
Implement the vector forms of the MVE VQDMULH and VQRDMULH insns.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-31-peter.maydell@linaro.org
Implement the MVE VQDMULL scalar insn. This multiplies the top or
bottom half of each element by the scalar, doubles and saturates
to a double-width result.
Note that this encoding overlaps with VQADD and VQSUB; it uses
what in VQADD and VQSUB would be the 'size=0b11' encoding.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-30-peter.maydell@linaro.org
Implement the MVE VQDMULH and VQRDMULH scalar insns, which multiply
elements by the scalar, double, possibly round, take the high half
and saturate.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-29-peter.maydell@linaro.org
Implement the MVE VQADD and VQSUB insns, which perform saturating
addition of a scalar to each element. Note that individual bytes of
each result element are used or discarded according to the predicate
mask, but FPSCR.QC is only set if the predicate mask for the lowest
byte of the element is set.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-28-peter.maydell@linaro.org
Implement the MVE VPST insn, which sets the predicate mask
fields in the VPR to the immediate value encoded in the insn.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-27-peter.maydell@linaro.org
Implement the MVE VBRSR insn, which reverses a specified
number of bits in each element, setting the rest to zero.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-26-peter.maydell@linaro.org
Implement the scalar variants of the MVE VHADD and VHSUB insns.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-25-peter.maydell@linaro.org
Implement the scalar forms of the MVE VSUB and VMUL insns.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-24-peter.maydell@linaro.org
Implement the scalar form of the MVE VADD insn. This takes the
scalar operand from a general purpose register.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210617121628.20116-23-peter.maydell@linaro.org
Since commit 605def6eee ("target/riscv: Use the RISCVException enum for CSR operations")
the CSR predicate() function was changed to return RISCV_EXCP_NONE
instead of 0 for a valid CSR, but it forgot to update the dynamic
CSR XML generation codes in gdbstub.
Fixes: 605def6eee ("target/riscv: Use the RISCVException enum for CSR operations")
Reported-by: Xuzhou Cheng <xuzhou.cheng@windriver.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Tested-by: Xuzhou Cheng <xuzhou.cheng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210615085133.389887-1-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
The is_32bit() check in translate.c expects a 64-bit guest to have a
64-bit misa value otherwise the macro check won't work. This patches
fixes that and fixes a Coverity issue at the same time.
Fixes: CID 1453107
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: c00176c7518c2a7b4de3eec320b6a683ab56f705.1622435221.git.alistair.francis@wdc.com
- tcg: implement the vector enhancements facility and bump the
'qemu' cpu model to a stripped-down z14 GA2
- fix psw.mask handling in signals
- fix vfio-ccw sense data handling
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Merge remote-tracking branch 'remotes/cohuck-gitlab/tags/s390x-20210621' into staging
s390x update:
- tcg: implement the vector enhancements facility and bump the
'qemu' cpu model to a stripped-down z14 GA2
- fix psw.mask handling in signals
- fix vfio-ccw sense data handling
# gpg: Signature made Mon 21 Jun 2021 10:53:00 BST
# gpg: using RSA key C3D0D66DC3624FF6A8C018CEDECF6B93C6F02FAF
# gpg: issuer "cohuck@redhat.com"
# gpg: Good signature from "Cornelia Huck <conny@cornelia-huck.de>" [unknown]
# gpg: aka "Cornelia Huck <huckc@linux.vnet.ibm.com>" [full]
# gpg: aka "Cornelia Huck <cornelia.huck@de.ibm.com>" [full]
# gpg: aka "Cornelia Huck <cohuck@kernel.org>" [unknown]
# gpg: aka "Cornelia Huck <cohuck@redhat.com>" [unknown]
# Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0 18CE DECF 6B93 C6F0 2FAF
* remotes/cohuck-gitlab/tags/s390x-20210621: (37 commits)
s390x/css: Add passthrough IRB
s390x/css: Refactor IRB construction
s390x/css: Split out the IRB sense data
s390x/css: Introduce an ESW struct
linux-user/s390x: Save and restore psw.mask properly
target/s390x: Use s390_cpu_{set_psw, get_psw_mask} in gdbstub
target/s390x: Improve s390_cpu_dump_state vs cc_op
target/s390x: Do not modify cpu state in s390_cpu_get_psw_mask
target/s390x: Expose load_psw and get_psw_mask to cpu.h
configure: Check whether we can compile the s390-ccw bios with -msoft-float
s390x/cpumodel: Bump up QEMU model to a stripped-down IBM z14 GA2
s390x/tcg: We support Vector enhancements facility
linux-user: elf: s390x: Prepare for Vector enhancements facility
s390x/tcg: Implement VECTOR FP (MAXIMUM|MINIMUM)
s390x/tcg: Implement VECTOR FP NEGATIVE MULTIPLY AND (ADD|SUBTRACT)
s390x/tcg: Implement 32/128 bit for VECTOR FP MULTIPLY AND (ADD|SUBTRACT)
s390x/tcg: Implement 32/128 bit for VECTOR FP TEST DATA CLASS IMMEDIATE
s390x/tcg: Implement 32/128 bit for VECTOR FP PERFORM SIGN OPERATION
s390x/tcg: Implement 128 bit for VECTOR FP LOAD ROUNDED
s390x/tcg: Implement 64 bit for VECTOR FP LOAD LENGTHENED
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell
Richard Henderson
Paolo Bonzini
Philippe Mathieu-Daudé
Aleksandar Rikalo
Peter Collingbourne
Bin Meng
Alistair Francis