Commit Graph

100765 Commits

Author SHA1 Message Date
Richard Henderson 535ca76425 target/arm/sme: Reorg SME access handling in handle_msr_i()
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20230112102436.1913-2-philmd@linaro.org
Message-Id: <20230112004322.161330-1-richard.henderson@linaro.org>
[PMD: Split patch in multiple tiny steps]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Philippe Mathieu-Daudé 500a64d82b hw/i2c/versatile_i2c: Rename versatile_i2c -> arm_sbcon_i2c
This device model started with the Versatile board, named
TYPE_VERSATILE_I2C, then ended up renamed TYPE_ARM_SBCON_I2C
as per the official "ARM SBCon two-wire serial bus interface"
description from:
https://developer.arm.com/documentation/dui0440/b/programmer-s-reference/two-wire-serial-bus-interface--sbcon

Use the latter name as a better description.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230110082508.24038-6-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Philippe Mathieu-Daudé f6cf2eb8ec hw/i2c/versatile_i2c: Use ARM_SBCON_I2C() macro
ARM_SBCON_I2C() macro and ArmSbconI2CState typedef are
already declared via the QOM DECLARE_INSTANCE_CHECKER()
macro in "hw/i2c/arm_sbcon_i2c.h". Drop the VERSATILE_I2C
declarations from versatile_i2c.c.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230110082508.24038-5-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Philippe Mathieu-Daudé 550da1cc22 hw/i2c/versatile_i2c: Replace TYPE_VERSATILE_I2C -> TYPE_ARM_SBCON_I2C
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230110082508.24038-4-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Philippe Mathieu-Daudé 92518611ac hw/i2c/versatile_i2c: Replace VersatileI2CState -> ArmSbconI2CState
In order to rename TYPE_VERSATILE_I2C as TYPE_ARM_SBCON_I2C
(the formal ARM naming), start renaming its state.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230110082508.24038-3-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Philippe Mathieu-Daudé 280b9ecbc5 hw/i2c/versatile_i2c: Drop useless casts from void * to pointer
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230110082508.24038-2-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Philippe Mathieu-Daudé c166e592a7 hw/i2c/bitbang_i2c: Convert DPRINTF() to trace events
Convert the remaining DPRINTF debug macro uses to tracepoints.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Corey Minyard <cminyard@mvista.com>
Message-id: 20230111085016.44551-6-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Philippe Mathieu-Daudé 1e5b1899cc hw/i2c/bitbang_i2c: Trace state changes
Trace bitbang state machine changes with trace events.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Corey Minyard <cminyard@mvista.com>
Message-id: 20230111085016.44551-5-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Philippe Mathieu-Daudé dc575b5e03 hw/i2c/bitbang_i2c: Change state calling bitbang_i2c_set_state() helper
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Corey Minyard <cminyard@mvista.com>
Message-id: 20230111085016.44551-4-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Philippe Mathieu-Daudé 2b9339d3b4 hw/i2c/bitbang_i2c: Remove unused dummy MemoryRegion
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Corey Minyard <cminyard@mvista.com>
Message-id: 20230111085016.44551-3-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
Philippe Mathieu-Daudé da8df26d2e hw/i2c/bitbang_i2c: Define TYPE_GPIO_I2C in public header
Define TYPE_GPIO_I2C in the public "hw/i2c/bitbang_i2c.h"
header and use it in hw/arm/musicpal.c.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Corey Minyard <cminyard@mvista.com>
Message-id: 20230111085016.44551-2-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:32:38 +00:00
David Reiss 0ec69c460e target/arm: Unify checking for M Main Extension in MRS/MSR
BASEPRI, FAULTMASK, and their _NS equivalents only exist on devices with
the Main Extension.  However, the MRS instruction did not check this,
and the MSR instruction handled it inconsistently (warning BASEPRI, but
silently ignoring writes to BASEPRI_NS).  Unify this behavior and always
warn when reading or writing any of these registers if the extension is
not present.

Signed-off-by: David Reiss <dreiss@meta.com>
Message-id: 167330628518.10497.13100425787268927786-0@git.sr.ht
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:00:11 +00:00
Richard Henderson bb461330a1 target/arm: Widen cnthctl_el2 to uint64_t
This is a 64-bit register on AArch64, even if the high 44 bits
are RES0.  Because this is defined as ARM_CP_STATE_BOTH, we are
asserting that the cpreg field is 64-bits.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1400
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230115171633.3171890-1-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-23 13:00:11 +00:00
Peter Maydell 65cc5ccf06 Second RISC-V PR for QEMU 8.0
* riscv_htif: Support console output via proxy syscall
 * Cleanup firmware and device tree loading
 * Fix elen check when using vector extensions
 * add RISC-V OpenSBI boot test
 * Ensure we always follow MISA parsing
 * Fix up masking of vsip/vsie accesses
 * Trap on writes to stimecmp from VS when hvictl.VTI=1
 * Introduce helper_set_rounding_mode_chkfrm
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Merge tag 'pull-riscv-to-apply-20230120' of https://github.com/alistair23/qemu into staging

Second RISC-V PR for QEMU 8.0

* riscv_htif: Support console output via proxy syscall
* Cleanup firmware and device tree loading
* Fix elen check when using vector extensions
* add RISC-V OpenSBI boot test
* Ensure we always follow MISA parsing
* Fix up masking of vsip/vsie accesses
* Trap on writes to stimecmp from VS when hvictl.VTI=1
* Introduce helper_set_rounding_mode_chkfrm

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# gpg: Signature made Fri 20 Jan 2023 07:38:37 GMT
# 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

* tag 'pull-riscv-to-apply-20230120' of https://github.com/alistair23/qemu: (37 commits)
  hw/riscv/virt.c: move create_fw_cfg() back to virt_machine_init()
  target/riscv: Remove helper_set_rod_rounding_mode
  target/riscv: Introduce helper_set_rounding_mode_chkfrm
  tcg/riscv: Use tcg_pcrel_diff in tcg_out_ldst
  target/riscv: Trap on writes to stimecmp from VS when hvictl.VTI=1
  target/riscv: Fix up masking of vsip/vsie accesses
  hw/riscv: use ms->fdt in riscv_socket_fdt_write_distance_matrix()
  hw/riscv: use MachineState::fdt in riscv_socket_fdt_write_id()
  hw/riscv/virt.c: remove 'is_32_bit' param from create_fdt_socket_cpus()
  hw/riscv/sifive_u.c: simplify create_fdt()
  hw/riscv/virt.c: simplify create_fdt()
  hw/riscv/spike.c: simplify create_fdt()
  target/riscv: Use TARGET_FMT_lx for env->mhartid
  target/riscv/cpu.c: do not skip misa logic in riscv_cpu_realize()
  target/riscv/cpu: set cpu->cfg in register_cpu_props()
  hw/riscv/boot.c: use MachineState in riscv_load_kernel()
  hw/riscv/boot.c: use MachineState in riscv_load_initrd()
  hw/riscv: write bootargs 'chosen' FDT after riscv_load_kernel()
  hw/riscv: write initrd 'chosen' FDT inside riscv_load_initrd()
  hw/riscv/spike.c: load initrd right after riscv_load_kernel()
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-20 16:17:56 +00:00
Peter Maydell fcb7e040f5 Header cleanup patches for 2023-01-20
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Merge tag 'pull-include-2023-01-20' of https://repo.or.cz/qemu/armbru into staging

Header cleanup patches for 2023-01-20

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# gpg: Signature made Fri 20 Jan 2023 06:41:42 GMT
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* tag 'pull-include-2023-01-20' of https://repo.or.cz/qemu/armbru:
  include/hw/ppc include/hw/pci-host: Drop extra typedefs
  include/hw/ppc: Don't include hw/pci-host/pnv_phb.h from pnv.h
  include/hw/ppc: Supply a few missing includes
  include/hw/ppc: Split pnv_chip.h off pnv.h
  include/hw/block: Include hw/block/block.h where needed
  hw/sparc64/niagara: Use blk_name() instead of open-coding it
  include/block: Untangle inclusion loops
  coroutine: Use Coroutine typedef name instead of structure tag
  coroutine: Split qemu/coroutine-core.h off qemu/coroutine.h
  coroutine: Clean up superfluous inclusion of qemu/lockable.h
  coroutine: Move coroutine_fn to qemu/osdep.h, trim includes
  coroutine: Clean up superfluous inclusion of qemu/coroutine.h

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-20 13:17:55 +00:00
Markus Armbruster b6c80037ed include/hw/ppc include/hw/pci-host: Drop extra typedefs
PnvChip is typedef'ed in five places, and PnvPhb4PecState in two.
Keep one, drop the others.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20221222104628.659681-5-armbru@redhat.com>
2023-01-20 07:25:22 +01:00
Markus Armbruster c0a5a477f1 include/hw/ppc: Don't include hw/pci-host/pnv_phb.h from pnv.h
The next commit needs to include hw/ppc/pnv.h from
hw/pci-host/pnv_phb.h.  Avoid an inclusion loop.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20221222104628.659681-4-armbru@redhat.com>
2023-01-20 07:25:18 +01:00
Markus Armbruster 14f11a204c include/hw/ppc: Supply a few missing includes
A few headers neglect to include headers they need.  They compile only
if something else includes the required header(s) first.  Fix that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20221222104628.659681-3-armbru@redhat.com>
2023-01-20 07:25:14 +01:00
Markus Armbruster 2c6fe2e214 include/hw/ppc: Split pnv_chip.h off pnv.h
PnvChipClass, PnvChip, Pnv8Chip, Pnv9Chip, and Pnv10Chip are defined
in pnv.h.  Many users of the header don't actually need them.  One
instance is this inclusion loop: hw/ppc/pnv_homer.h includes
hw/ppc/pnv.h for typedef PnvChip, and vice versa for struct PnvHomer.

Similar structs live in their own headers: PnvHomerClass and PnvHomer
in pnv_homer.h, PnvLpcClass and PnvLpcController in pci_lpc.h,
PnvPsiClass, PnvPsi, Pnv8Psi, Pnv9Psi, Pnv10Psi in pnv_psi.h, ...

Move PnvChipClass, PnvChip, Pnv8Chip, Pnv9Chip, and Pnv10Chip to new
pnv_chip.h, and adjust include directives.  This breaks the inclusion
loop mentioned above.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20221222104628.659681-2-armbru@redhat.com>
2023-01-20 07:25:10 +01:00
Markus Armbruster 82651e8792 include/hw/block: Include hw/block/block.h where needed
hw/block/swim.h needs BlockConf.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221221133551.3967339-4-armbru@redhat.com>
2023-01-20 07:25:06 +01:00
Markus Armbruster 1881f336a3 hw/sparc64/niagara: Use blk_name() instead of open-coding it
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221221133551.3967339-3-armbru@redhat.com>
2023-01-20 07:25:01 +01:00
Markus Armbruster e2c1c34f13 include/block: Untangle inclusion loops
We have two inclusion loops:

       block/block.h
    -> block/block-global-state.h
    -> block/block-common.h
    -> block/blockjob.h
    -> block/block.h

       block/block.h
    -> block/block-io.h
    -> block/block-common.h
    -> block/blockjob.h
    -> block/block.h

I believe these go back to Emanuele's reorganization of the block API,
merged a few months ago in commit d7e2fe4aac.

Fortunately, breaking them is merely a matter of deleting unnecessary
includes from headers, and adding them back in places where they are
now missing.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20221221133551.3967339-2-armbru@redhat.com>
2023-01-20 07:24:28 +01:00
Markus Armbruster 4369560135 coroutine: Use Coroutine typedef name instead of structure tag
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221221131435.3851212-6-armbru@redhat.com>
2023-01-20 07:23:45 +01:00
Markus Armbruster 68ba85cecc coroutine: Split qemu/coroutine-core.h off qemu/coroutine.h
qemu/coroutine.h and qemu/lockable.h include each other.

They need each other only in macro expansions, so we could simply drop
both inclusions to break the loop, and add suitable includes to files
that expand the macros.

Instead, move a part of qemu/coroutine.h to new qemu/coroutine-core.h
so that qemu/coroutine-core.h doesn't need qemu/lockable.h, and
qemu/lockable.h only needs qemu/coroutine-core.h.  Result:
qemu/coroutine.h includes qemu/lockable.h includes
qemu/coroutine-core.h.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20221221131435.3851212-5-armbru@redhat.com>
[Semantic rebase conflict with 7c10cb38cc "accel/tcg: Add debuginfo
support" resolved]
2023-01-20 07:21:46 +01:00
Daniel Henrique Barboza b748352c55 hw/riscv/virt.c: move create_fw_cfg() back to virt_machine_init()
Commit 1c20d3ff60 ("hw/riscv: virt: Add a machine done notifier")
moved the initialization of fw_cfg to the virt_machine_done() callback.

Problem is that the validation of fw_cfg by devices such as ramfb is
done before the machine done notifier is called. Moving create_fw_cfg()
to machine_done() results in QEMU failing to boot when using a ramfb
device:

./qemu-system-riscv64 -machine virt -device ramfb -serial stdio
qemu-system-riscv64: -device ramfb: ramfb device requires fw_cfg with DMA

The fix is simple: move create_fw_cfg() config back to
virt_machine_init(). This happens to be the same way the ARM 'virt'
machine deals with fw_cfg (see machvirt_init() and virt_machine_done()
in hw/arm/virt.c), so we're keeping consistency with how other machines
handle this device.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1343
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230117132751.229738-2-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:14 +10:00
Richard Henderson f251c01a62 target/riscv: Remove helper_set_rod_rounding_mode
The only setting of RISCV_FRM_ROD is from the vector unit,
and now handled by helper_set_rounding_mode_chkfrm.
This helper is now unused.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230115160657.3169274-3-richard.henderson@linaro.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:14 +10:00
Richard Henderson 3ceeb19a53 target/riscv: Introduce helper_set_rounding_mode_chkfrm
The new helper always validates the contents of FRM, even
if the new rounding mode is not DYN.  This is required by
the vector unit.

Track whether we've validated FRM separately from whether
we've updated fp_status with a given rounding mode, so that
we can elide calls correctly.

This partially reverts d6c4d3f2a6 which attempted the to do
the same thing, but with two calls to gen_set_rm(), which is
both inefficient and tickles an assertion in decode_save_opc.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1441
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230115160657.3169274-2-richard.henderson@linaro.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:14 +10:00
Richard Henderson 9d9db41373 tcg/riscv: Use tcg_pcrel_diff in tcg_out_ldst
We failed to update this with the w^x split, so misses the fact
that true pc-relative offsets are usually small.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230117230415.354239-1-richard.henderson@linaro.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:14 +10:00
Andrew Bresticker e471a8c985 target/riscv: Trap on writes to stimecmp from VS when hvictl.VTI=1
Per the AIA specification, writes to stimecmp from VS level should
trap when hvictl.VTI is set since the write may cause vsip.STIP to
become unset.

Fixes: 3ec0fe18a3 ("target/riscv: Add vstimecmp support")
Signed-off-by: Andrew Bresticker <abrestic@rivosinc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20221215224541.1423431-2-abrestic@rivosinc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:14 +10:00
Andrew Bresticker 06d85c24c2 target/riscv: Fix up masking of vsip/vsie accesses
The current logic attempts to shift the VS-level bits into their correct
position in mip while leaving the remaining bits in-tact. This is both
pointless and likely incorrect since one would expect that any new, future
VS-level interrupts will get their own position in mip rather than sharing
with their (H)S-level equivalent. Fix this, and make the logic more
readable, by just making off the VS-level bits and shifting them into
position.

This also fixes reads of vsip, which would only ever report vsip.VSSIP
since the non-writable bits got masked off as well.

Fixes: d028ac7512 ("arget/riscv: Implement AIA CSRs for 64 local interrupts on RV32")
Signed-off-by: Andrew Bresticker <abrestic@rivosinc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20221215224541.1423431-1-abrestic@rivosinc.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:14 +10:00
Daniel Henrique Barboza 9c3ee7e847 hw/riscv: use ms->fdt in riscv_socket_fdt_write_distance_matrix()
There's no need to use a MachineState pointer and a fdt pointer now that
all RISC-V machines are using the FDT from the MachineState.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230111170948.316276-7-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:14 +10:00
Daniel Henrique Barboza fb60b488cf hw/riscv: use MachineState::fdt in riscv_socket_fdt_write_id()
There's no need to use a MachineState pointer and a fdt pointer now that
all RISC-V machines are using the FDT from the MachineState.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230111170948.316276-6-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:14 +10:00
Daniel Henrique Barboza 914c97f968 hw/riscv/virt.c: remove 'is_32_bit' param from create_fdt_socket_cpus()
create_fdt_socket_cpus() writes a different 'mmu-type' value if we're
running in 32 or 64 bits. However, the flag is being calculated during
virt_machine_init(), and is passed around in create_fdt(), then
create_fdt_socket(), and then finally create_fdt_socket_cpus(). None of
the intermediate functions are using the flag, which is a bit
misleading.

Remove 'is_32_bit' flag from create_fdt_socket_cpus() and calculate it
using the already available RISCVVirtState pointer. This will also
change the signature of create_fdt_socket() and create_fdt(), making it
clear that these functions don't do anything special when we're running
in 32 bit mode.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230111170948.316276-5-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:14 +10:00
Daniel Henrique Barboza f5be2ccb43 hw/riscv/sifive_u.c: simplify create_fdt()
'cmdline' isn't being used. Remove it.

A MachineState pointer is being retrieved via a MACHINE() macro calling
qdev_get_machine(). Use MACHINE(s) instead to avoid calling qdev().

 'mem_size' is being set as machine->ram_size by the caller. Retrieve it
via ms->ram_size.

Cc: Palmer Dabbelt <palmer@dabbelt.com>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230111170948.316276-4-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:14 +10:00
Daniel Henrique Barboza cdb785683a hw/riscv/virt.c: simplify create_fdt()
'mem_size' and 'cmdline' aren't being used. Remove them.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230111170948.316276-3-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:14 +10:00
Daniel Henrique Barboza 5dfe23774d hw/riscv/spike.c: simplify create_fdt()
'mem_size' and 'cmdline' are unused.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230111170948.316276-2-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:14 +10:00
Bin Meng 877a3a3732 target/riscv: Use TARGET_FMT_lx for env->mhartid
env->mhartid is currently casted to long before printed, which drops
the high 32-bit for rv64 on 32-bit host. Use TARGET_FMT_lx instead.

Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230109152655.340114-1-bmeng@tinylab.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:13 +10:00
Daniel Henrique Barboza 5ab1095213 target/riscv/cpu.c: do not skip misa logic in riscv_cpu_realize()
All RISCV CPUs are setting cpu->cfg during their cpu_init() functions,
meaning that there's no reason to skip all the misa validation and setup
if misa_ext was set beforehand - especially since we're setting an
updated value in set_misa() in the end.

Put this code chunk into a new riscv_cpu_validate_set_extensions()
helper and always execute it regardless of what the board set in
env->misa_ext.

This will put more responsibility in how each board is going to init
their attributes and extensions if they're not using the defaults.
It'll also allow realize() to do its job looking only at the extensions
enabled per se, not corner cases that some CPUs might have, and we won't
have to change multiple code paths to fix or change how extensions work.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
Message-Id: <20230113175230.473975-3-dbarboza@ventanamicro.com>
[ Changes by AF:
 - Rebase
]
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:13 +10:00
Daniel Henrique Barboza c66ffcd535 target/riscv/cpu: set cpu->cfg in register_cpu_props()
There is an informal contract between the cpu_init() functions and
riscv_cpu_realize(): if cpu->env.misa_ext is zero, assume that the
default settings were loaded via register_cpu_props() and do validations
to set env.misa_ext. If it's not zero, skip this whole process and
assume that the board somehow did everything.

At this moment, all SiFive CPUs are setting a non-zero misa_ext during
their cpu_init() and skipping a good chunk of riscv_cpu_realize().  This
causes problems when the code being skipped in riscv_cpu_realize()
contains fixes or assumptions that affects all CPUs, meaning that SiFive
CPUs are missing out.

To allow this code to not be skipped anymore, all the cpu->cfg.ext_*
attributes needs to be set during cpu_init() time. At this moment this
is being done in register_cpu_props(). The SiFive boards are setting
their own extensions during cpu_init() though, meaning that they don't
want all the defaults from register_cpu_props().

Let's move the contract between *_cpu_init() and riscv_cpu_realize() to
register_cpu_props(). Inside this function we'll check if
cpu->env.misa_ext was set and, if that's the case, set all relevant
cpu->cfg.ext_* attributes, and only that. Leave the 'misa_ext' = 0 case
as is today, i.e. loading all the defaults from riscv_cpu_extensions[].

register_cpu_props() can then be called by all the cpu_init() functions,
including the SiFive ones. This will make all CPUs behave more in line
with what riscv_cpu_realize() expects.

This will also make the cpu_init() functions even more alike, but at this
moment we would need some design changes in how we're initializing
extensions/attributes (e.g. some CPUs are setting cfg options after
register_cpu_props(), so we can't simply add the function to a common
post_init() hook)  to make a common cpu_init() code across all CPUs.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230113175230.473975-2-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:13 +10:00
Daniel Henrique Barboza 60c1f05e36 hw/riscv/boot.c: use MachineState in riscv_load_kernel()
All callers are using kernel_filename as machine->kernel_filename.

This will also simplify the changes in riscv_load_kernel() that we're
going to do next.

Cc: Palmer Dabbelt <palmer@dabbelt.com>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230102115241.25733-10-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:13 +10:00
Daniel Henrique Barboza 1f99146103 hw/riscv/boot.c: use MachineState in riscv_load_initrd()
'filename', 'mem_size' and 'fdt' from riscv_load_initrd() can all be
retrieved by the MachineState object for all callers.

Cc: Palmer Dabbelt <palmer@dabbelt.com>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230102115241.25733-9-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:13 +10:00
Daniel Henrique Barboza b1f19f238c hw/riscv: write bootargs 'chosen' FDT after riscv_load_kernel()
The sifive_u, spike and virt machines are writing the 'bootargs' FDT
node during their respective create_fdt().

Given that bootargs is written only when '-append' is used, and this
option is only allowed with the '-kernel' option, which in turn is
already being check before executing riscv_load_kernel(), write
'bootargs' in the same code path as riscv_load_kernel().

Cc: Palmer Dabbelt <palmer@dabbelt.com>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230102115241.25733-8-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:13 +10:00
Daniel Henrique Barboza b9a65476cb hw/riscv: write initrd 'chosen' FDT inside riscv_load_initrd()
riscv_load_initrd() returns the initrd end addr while also writing a
'start' var to mark the addr start. These informations are being used
just to write the initrd FDT node. Every existing caller of
riscv_load_initrd() is writing the FDT in the same manner.

We can simplify things by writing the FDT inside riscv_load_initrd(),
sparing callers from having to manage start/end addrs to write the FDT
themselves.

An 'if (fdt)' check is already inserted at the end of the function
because we'll end up using it later on with other boards that doesn´t
have a FDT.

Cc: Palmer Dabbelt <palmer@dabbelt.com>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230102115241.25733-7-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:13 +10:00
Daniel Henrique Barboza c44df400d9 hw/riscv/spike.c: load initrd right after riscv_load_kernel()
This will make the code more in line with what the other boards are
doing. We'll also avoid an extra check to machine->kernel_filename since
we already checked that before executing riscv_load_kernel().

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
Message-Id: <20230102115241.25733-6-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:13 +10:00
Daniel Henrique Barboza 1db0c57ade hw/riscv/boot.c: exit early if filename is NULL in load functions
riscv_load_firmware(), riscv_load_initrd() and riscv_load_kernel() works
under the assumption that a 'filename' parameter is always not NULL.

This is currently the case since all callers of these functions are
checking for NULL before calling them. Add an g_assert() to make sure
that a NULL value in these cases are to be considered a bug.

Suggested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230102115241.25733-5-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:13 +10:00
Daniel Henrique Barboza 60c7dfa2a3 hw/riscv/sifive_u: use 'fdt' from MachineState
The MachineState object provides a 'fdt' pointer that is already being
used by other RISC-V machines, and it's also used by the 'dumpdtb' QMP
command.

Remove the 'fdt' pointer from SiFiveUState and use MachineState::fdt
instead.

Cc: Palmer Dabbelt <palmer@dabbelt.com>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
Message-Id: <20230102115241.25733-4-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:13 +10:00
Daniel Henrique Barboza 3139929da4 hw/riscv/spike: use 'fdt' from MachineState
The MachineState object provides a 'fdt' pointer that is already being
used by other RISC-V machines, and it's also used by the 'dumpdtb' QMP
command.

Remove the 'fdt' pointer from SpikeState and use MachineState::fdt
instead.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
Message-Id: <20230102115241.25733-3-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:13 +10:00
Daniel Henrique Barboza db2b9a59ca tests/avocado: add RISC-V OpenSBI boot test
This test is used to do a quick sanity check to ensure that we're able
to run the existing QEMU FW image.

'sifive_u', 'spike' and 'virt' riscv64 machines, and 'sifive_u' and
'virt' 32 bit machines are able to run the default RISCV64_BIOS_BIN |
RISCV32_BIOS_BIN firmware with minimal options.

The riscv32 'spike' machine isn't bootable at this moment, requiring an
OpenSBI fix [1] and QEMU side changes [2]. We could just leave at that
or add a 'skip' test to remind us about it. To work as a reminder that
we have a riscv32 'spike' test that should be enabled as soon as OpenSBI
QEMU rom receives the fix, we're adding a 'skip' test:

(06/18) tests/avocado/riscv_opensbi.py:RiscvOpenSBI.test_riscv32_spike:
        SKIP: requires OpenSBI fix to work

[1] https://patchwork.ozlabs.org/project/opensbi/patch/20221226033603.1860569-1-bmeng@tinylab.org/
[2] https://patchwork.ozlabs.org/project/qemu-devel/list/?series=334159

Cc: Cleber Rosa <crosa@redhat.com>
Cc: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
Tested-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230102115241.25733-2-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:13 +10:00
Dongxue Zhang 44e7372b21 target/riscv/cpu.c: Fix elen check
The elen check should be cpu->cfg.elen in range [8, 64].

Signed-off-by: Dongxue Zhang <elta.era@gmail.com>
Reviewed-by: LIU Zhiwei <zhiwe_liu@linux.alibaba.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <167236721596.15277.2653405273227256289-0@git.sr.ht>
[ Changes by AF:
 - Tidy up commit message
]
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:13 +10:00
Bin Meng 71d68c48be hw/riscv: spike: Decouple create_fdt() dependency to ELF loading
At present create_fdt() calls htif_uses_elf_symbols() to determine
whether to insert a <reg> property for the HTIF. This unfortunately
creates a hidden dependency to riscv_load_{firmware,kernel} that
create_fdt() must be called after the ELF {firmware,kernel} image
has been loaded.

Decouple such dependency be adding a new parameter to create_fdt(),
whether custom HTIF base address is used. The flag will be set if
non ELF {firmware,kernel} image is given by user.

Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-Id: <20221229091828.1945072-13-bmeng@tinylab.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2023-01-20 10:14:13 +10:00