Commit Graph

90316 Commits

Author SHA1 Message Date
Peter Maydell
fce9608d02 linux-user/aarch64: Use force_sig_fault()
Use the new force_sig_fault() function instead of setting up
a target_siginfo_t and calling queue_signal().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210813131809.28655-8-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-09-23 14:43:58 +02:00
Peter Maydell
4c90f0ba9d linux-user/arm: Use force_sig_fault()
Use the new force_sig_fault() function instead of setting up
a target_siginfo_t and calling queue_signal().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210813131809.28655-7-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-09-23 14:43:34 +02:00
Peter Maydell
af7969605e linux-user: Provide new force_sig_fault() function
In many places in the linux-user code we need to queue a signal for
the guest using the QEMU_SI_FAULT si_type.  This requires that the
caller sets up and passes us a target_siginfo, including setting the
appropriate part of the _sifields union for the si_type. In a number
of places the code forgets to set the _sifields union field.

Provide a new force_sig_fault() function, which does the same thing
as the Linux kernel function of that name -- it takes the signal
number, the si_code value and the address to use in
_sifields._sigfault, and assembles the target_siginfo itself.  This
makes the callsites simpler and means it's harder to forget to pass
in an address value.

We follow force_sig() and the kernel's force_sig_fault() in not
requiring the caller to pass in the CPU pointer but always acting
on the CPU of the current thread.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210813131809.28655-6-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-09-23 14:42:55 +02:00
Peter Maydell
819121b9b0 linux-user: Zero out target_siginfo_t in force_sig()
The target_siginfo_t we populate in force_sig() will eventually
get copied onto the target's stack. Zero it out so that any extra
padding in the sifields union is consistently zero when the guest
sees it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210813131809.28655-5-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-09-23 14:42:55 +02:00
Peter Maydell
babe6d5c88 linux-user/arm: Use force_sig() to deliver fpa11 emulation SIGFPE
In the Arm target code, when the fpa11 emulation code tells us we
need to send the guest a SIGFPE, we do this with queue_signal(), but
we are using the wrong si_type, and we aren't setting the _sifields
union members corresponding to either the si_type we are using or the
si_type we should be using.

As the existing comment notes, the kernel code for this calls the old
send_sig() function to deliver the signal.  This eventually results
in the kernel's signal handling code fabricating a siginfo_t with a
SI_KERNEL code and a zero pid and uid.  For QEMU this means we need
to use QEMU_SI_KILL.  We already have a function for that:
force_sig() sets up the whole target_siginfo_t the way we need it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210813131809.28655-4-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-09-23 14:42:55 +02:00
Peter Maydell
1af354120d linux-user/arm: Set siginfo_t addr field for SIGTRAP signals
When generating a TRAP_BRKPT SIGTRAP, set the siginfo_t addr field
to the PC where the breakpoint/singlestep trap occurred; this is
what the kernel does for this signal for this architecture.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210813131809.28655-3-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-09-23 14:42:55 +02:00
Peter Maydell
1fb6a87d0b linux-user/aarch64: Set siginfo_t addr field for SIGTRAP signals
When generating a TRAP_BRKPT SIGTRAP, set the siginfo_t addr field
to the PC where the breakpoint/singlestep trap occurred; this is
what the kernel does for this signal for this architecture.

Fixes: Coverity 1459154
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210813131809.28655-2-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-09-23 14:42:55 +02:00
Richard Henderson
2c3e83f92d Second RISC-V PR for QEMU 6.2
- ePMP CSR address updates
  - Convert internal interrupts to use QEMU GPIO lines
  - SiFive PWM support
  - Support for RISC-V ACLINT
  - SiFive PDMA fixes
  - Update to u-boot instructions for sifive_u
  - mstatus.SD bug fix for hypervisor extensions
  - OpenTitan fix for USB dev address
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Merge remote-tracking branch 'remotes/alistair23/tags/pull-riscv-to-apply-20210921' into staging

Second RISC-V PR for QEMU 6.2

 - ePMP CSR address updates
 - Convert internal interrupts to use QEMU GPIO lines
 - SiFive PWM support
 - Support for RISC-V ACLINT
 - SiFive PDMA fixes
 - Update to u-boot instructions for sifive_u
 - mstatus.SD bug fix for hypervisor extensions
 - OpenTitan fix for USB dev address

# gpg: Signature made Mon 20 Sep 2021 11:52:26 PM PDT
# gpg:                using RSA key F6C4AC46D4934868D3B8CE8F21E10D29DF977054
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [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: F6C4 AC46 D493 4868 D3B8  CE8F 21E1 0D29 DF97 7054

* remotes/alistair23/tags/pull-riscv-to-apply-20210921: (21 commits)
  hw/riscv: opentitan: Correct the USB Dev address
  target/riscv: csr: Rename HCOUNTEREN_CY and friends
  target/riscv: Backup/restore mstatus.SD bit when virtual register swapped
  docs/system/riscv: sifive_u: Update U-Boot instructions
  hw/dma: sifive_pdma: don't set Control.error if 0 bytes to transfer
  hw/dma: sifive_pdma: allow non-multiple transaction size transactions
  hw/dma: sifive_pdma: claim bit must be set before DMA transactions
  hw/dma: sifive_pdma: reset Next* registers when Control.claim is set
  hw/riscv: virt: Add optional ACLINT support to virt machine
  hw/riscv: virt: Re-factor FDT generation
  hw/intc: Upgrade the SiFive CLINT implementation to RISC-V ACLINT
  hw/intc: Rename sifive_clint sources to riscv_aclint sources
  sifive_u: Connect the SiFive PWM device
  hw/timer: Add SiFive PWM support
  hw/intc: ibex_timer: Convert the timer to use RISC-V CPU GPIO lines
  hw/intc: sifive_plic: Convert the PLIC to use RISC-V CPU GPIO lines
  hw/intc: ibex_plic: Convert the PLIC to use RISC-V CPU GPIO lines
  hw/intc: sifive_clint: Use RISC-V CPU GPIO lines
  target/riscv: Expose interrupt pending bits as GPIO lines
  target/riscv: Fix satp write
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-09-21 10:57:48 -07:00
Peter Maydell
81ceb36b96 target-arm queue:
* Optimize codegen for MVE when predication not active
  * hvf: Add Apple Silicon support
  * hw/intc: Set GIC maintenance interrupt level to only 0 or 1
  * Fix mishandling of MVE FPSCR.LTPSIZE reset for usermode emulator
  * elf2dmp: Fix coverity nits
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20210921' into staging

target-arm queue:
 * Optimize codegen for MVE when predication not active
 * hvf: Add Apple Silicon support
 * hw/intc: Set GIC maintenance interrupt level to only 0 or 1
 * Fix mishandling of MVE FPSCR.LTPSIZE reset for usermode emulator
 * elf2dmp: Fix coverity nits

# gpg: Signature made Tue 21 Sep 2021 16:31:17 BST
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20210921: (27 commits)
  target/arm: Optimize MVE 1op-immediate insns
  target/arm: Optimize MVE VSLI and VSRI
  target/arm: Optimize MVE VSHLL and VMOVL
  target/arm: Optimize MVE VSHL, VSHR immediate forms
  target/arm: Optimize MVE VMVN
  target/arm: Optimize MVE VDUP
  target/arm: Optimize MVE VNEG, VABS
  target/arm: Optimize MVE arithmetic ops
  target/arm: Optimize MVE logic ops
  target/arm: Add TB flag for "MVE insns not predicated"
  target/arm: Enforce that FPDSCR.LTPSIZE is 4 on inbound migration
  target/arm: Avoid goto_tb if we're trying to exit to the main loop
  hvf: arm: Add rudimentary PMC support
  arm: Add Hypervisor.framework build target
  hvf: arm: Implement PSCI handling
  hvf: arm: Implement -cpu host
  arm/hvf: Add a WFI handler
  hvf: Add Apple Silicon support
  hvf: Introduce hvf_arch_init() callback
  hvf: Add execute to dirty log permission bitmap
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-09-21 16:32:19 +01:00
Peter Maydell
4b445c926a target/arm: Optimize MVE 1op-immediate insns
Optimize the MVE 1op-immediate insns (VORR, VBIC, VMOV) to
use TCG vector ops when possible.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-13-peter.maydell@linaro.org
2021-09-21 16:28:27 +01:00
Peter Maydell
ce75c43f6d target/arm: Optimize MVE VSLI and VSRI
Optimize the MVE shift-and-insert insns by using TCG
vector ops when possible.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-12-peter.maydell@linaro.org
2021-09-21 16:28:27 +01:00
Peter Maydell
a7789fabe1 target/arm: Optimize MVE VSHLL and VMOVL
Optimize the MVE VSHLL insns by using TCG vector ops when possible.
This includes the VMOVL insn, which we handle in mve.decode as "VSHLL
with zero shift count".

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-11-peter.maydell@linaro.org
2021-09-21 16:28:27 +01:00
Peter Maydell
752970ef7c target/arm: Optimize MVE VSHL, VSHR immediate forms
Optimize the MVE VSHL and VSHR immediate forms by using TCG vector
ops when possible.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-10-peter.maydell@linaro.org
2021-09-21 16:28:27 +01:00
Peter Maydell
5cf525a8a6 target/arm: Optimize MVE VMVN
Optimize the MVE VMVN insn by using TCG vector ops when possible.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-9-peter.maydell@linaro.org
2021-09-21 16:28:27 +01:00
Peter Maydell
f8d94803f1 target/arm: Optimize MVE VDUP
Optimize the MVE VDUP insns by using TCG vector ops when possible.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-8-peter.maydell@linaro.org
2021-09-21 16:28:27 +01:00
Peter Maydell
4b1561c472 target/arm: Optimize MVE VNEG, VABS
Optimize the MVE VNEG and VABS insns by using TCG
vector ops when possible.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-7-peter.maydell@linaro.org
2021-09-21 16:28:27 +01:00
Peter Maydell
bc3087f253 target/arm: Optimize MVE arithmetic ops
Optimize MVE arithmetic ops when we have a TCG
vector operation we can use.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-6-peter.maydell@linaro.org
2021-09-21 16:28:27 +01:00
Peter Maydell
451f9d66cf target/arm: Optimize MVE logic ops
When not predicating, implement the MVE bitwise logical insns
directly using TCG vector operations.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-5-peter.maydell@linaro.org
2021-09-21 16:28:27 +01:00
Peter Maydell
2670221397 target/arm: Add TB flag for "MVE insns not predicated"
Our current codegen for MVE always calls out to helper functions,
because some byte lanes might be predicated.  The common case is that
in fact there is no predication active and all lanes should be
updated together, so we can produce better code by detecting that and
using the TCG generic vector infrastructure.

Add a TB flag that is set when we can guarantee that there is no
active MVE predication, and a bool in the DisasContext.  Subsequent
patches will use this flag to generate improved code for some
instructions.

In most cases when the predication state changes we simply end the TB
after that instruction.  For the code called from vfp_access_check()
that handles lazy state preservation and creating a new FP context,
we can usually avoid having to try to end the TB because luckily the
new value of the flag following the register changes in those
sequences doesn't depend on any runtime decisions.  We do have to end
the TB if the guest has enabled lazy FP state preservation but not
automatic state preservation, but this is an odd corner case that is
not going to be common in real-world code.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-4-peter.maydell@linaro.org
2021-09-21 16:28:27 +01:00
Peter Maydell
85e7d1e9ff target/arm: Enforce that FPDSCR.LTPSIZE is 4 on inbound migration
Architecturally, for an M-profile CPU with the LOB feature the
LTPSIZE field in FPDSCR is always constant 4.  QEMU's implementation
enforces this everywhere, except that we don't check that it is true
in incoming migration data.

We're going to add come in gen_update_fp_context() which relies on
the "always 4" property.  Since this is TCG-only, we don't actually
need to be robust to bogus incoming migration data, and the effect of
it being wrong would be wrong code generation rather than a QEMU
crash; but if it did ever happen somehow it would be very difficult
to track down the cause.  Add a check so that we fail the inbound
migration if the FPDSCR.LTPSIZE value is incorrect.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-3-peter.maydell@linaro.org
2021-09-21 16:28:27 +01:00
Peter Maydell
84848481c3 target/arm: Avoid goto_tb if we're trying to exit to the main loop
Currently gen_jmp_tb() assumes that if it is called then the jump it
is handling is the only reason that we might be trying to end the TB,
so it will use goto_tb if it can.  This is usually the case: mostly
"we did something that means we must end the TB" happens on a
non-branch instruction.  However, there are cases where we decide
early in handling an instruction that we need to end the TB and
return to the main loop, and then the insn is a complex one that
involves gen_jmp_tb().  For instance, for M-profile FP instructions,
in gen_preserve_fp_state() which is called from vfp_access_check() we
want to force an exit to the main loop if lazy state preservation is
active and we are in icount mode.

Make gen_jmp_tb() look at the current value of is_jmp, and only use
goto_tb if the previous is_jmp was DISAS_NEXT or DISAS_TOO_MANY.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210913095440.13462-2-peter.maydell@linaro.org
2021-09-21 16:28:27 +01:00
Alexander Graf
dd43ac07ef hvf: arm: Add rudimentary PMC support
We can expose cycle counters on the PMU easily. To be as compatible as
possible, let's do so, but make sure we don't expose any other architectural
counters that we can not model yet.

This allows OSs to work that require PMU support.

Signed-off-by: Alexander Graf <agraf@csgraf.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20210916155404.86958-10-agraf@csgraf.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-09-21 16:28:27 +01:00
Alexander Graf
844a06bbe4 arm: Add Hypervisor.framework build target
Now that we have all logic in place that we need to handle Hypervisor.framework
on Apple Silicon systems, let's add CONFIG_HVF for aarch64 as well so that we
can build it.

Signed-off-by: Alexander Graf <agraf@csgraf.de>
Reviewed-by: Roman Bolshakov <r.bolshakov@yadro.com>
Tested-by: Roman Bolshakov <r.bolshakov@yadro.com> (x86 only)
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Message-id: 20210916155404.86958-9-agraf@csgraf.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-09-21 16:28:26 +01:00
Alexander Graf
2c9c0bf9d1 hvf: arm: Implement PSCI handling
We need to handle PSCI calls. Most of the TCG code works for us,
but we can simplify it to only handle aa64 mode and we need to
handle SUSPEND differently.

This patch takes the TCG code as template and duplicates it in HVF.

To tell the guest that we support PSCI 0.2 now, update the check in
arm_cpu_initfn() as well.

Signed-off-by: Alexander Graf <agraf@csgraf.de>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20210916155404.86958-8-agraf@csgraf.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-09-21 16:28:26 +01:00
Peter Maydell
585df85efe hvf: arm: Implement -cpu host
Now that we have working system register sync, we push more target CPU
properties into the virtual machine. That might be useful in some
situations, but is not the typical case that users want.

So let's add a -cpu host option that allows them to explicitly pass all
CPU capabilities of their host CPU into the guest.

Signed-off-by: Alexander Graf <agraf@csgraf.de>
Acked-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20210916155404.86958-7-agraf@csgraf.de
[PMM: drop unnecessary #include line from .h file]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-09-21 16:28:26 +01:00
Peter Collingbourne
219c101fa7 arm/hvf: Add a WFI handler
Sleep on WFI until the VTIMER is due but allow ourselves to be woken
up on IPI.

In this implementation IPI is blocked on the CPU thread at startup and
pselect() is used to atomically unblock the signal and begin sleeping.
The signal is sent unconditionally so there's no need to worry about
races between actually sleeping and the "we think we're sleeping"
state. It may lead to an extra wakeup but that's better than missing
it entirely.

Signed-off-by: Peter Collingbourne <pcc@google.com>
Signed-off-by: Alexander Graf <agraf@csgraf.de>
Acked-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Message-id: 20210916155404.86958-6-agraf@csgraf.de
[agraf: Remove unused 'set' variable, always advance PC on WFX trap,
        support vm stop / continue operations and cntv offsets]
Signed-off-by: Alexander Graf <agraf@csgraf.de>
Acked-by: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-09-21 16:28:26 +01:00
Peter Maydell
1c81a38c5a Aspeed patches :
* MAC enablement fixes (Guenter)
 * Watchdog  and pca9552 fixes (Andrew)
 * GPIO fixes (Joel)
 * AST2600A3 SoC and DPS310 models (Joel)
 * New Fuji BMC machine (Peter)
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Merge remote-tracking branch 'remotes/legoater/tags/pull-aspeed-20210920' into staging

Aspeed patches :

* MAC enablement fixes (Guenter)
* Watchdog  and pca9552 fixes (Andrew)
* GPIO fixes (Joel)
* AST2600A3 SoC and DPS310 models (Joel)
* New Fuji BMC machine (Peter)

# gpg: Signature made Mon 20 Sep 2021 07:51:23 BST
# gpg:                using RSA key A0F66548F04895EBFE6B0B6051A343C7CFFBECA1
# gpg: Good signature from "Cédric Le Goater <clg@kaod.org>" [undefined]
# 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: A0F6 6548 F048 95EB FE6B  0B60 51A3 43C7 CFFB ECA1

* remotes/legoater/tags/pull-aspeed-20210920:
  hw/arm/aspeed: Add Fuji machine type
  hw/arm/aspeed: Allow machine to set UART default
  hw/arm/aspeed: Initialize AST2600 UART clock selection registers
  arm/aspeed: Add DPS310 to Witherspoon and Rainier
  hw/misc: Add Infineon DPS310 sensor model
  aspeed: Emulate the AST2600A3
  arm/aspeed: rainier: Add i2c eeproms and muxes
  misc/pca9552: Fix LED status register indexing in pca955x_get_led()
  hw: aspeed_gpio: Clarify GPIO controller name
  hw: aspeed_gpio: Simplify 1.8V defines
  watchdog: aspeed: Fix sequential control writes
  watchdog: aspeed: Sanitize control register values
  hw: arm: aspeed: Enable mac0/1 instead of mac1/2 for g220a
  hw: arm: aspeed: Enable eth0 interface for aspeed-ast2600-evb

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-09-21 13:58:09 +01:00
Alistair Francis
ed481d9837 hw/riscv: opentitan: Correct the USB Dev address
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: d6cb4dfe75a2f536f217d7075b750ece3acb1535.1631767043.git.alistair.francis@wdc.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-21 12:10:47 +10:00
Bin Meng
db70794ea8 target/riscv: csr: Rename HCOUNTEREN_CY and friends
The macro name HCOUNTEREN_CY suggests it is for CSR HCOUNTEREN, but
in fact it applies to M-mode and S-mode CSR too. Rename these macros
to have the COUNTEREN_ prefix.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210915084601.24304-1-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-21 12:10:47 +10:00
Frank Chang
c601354756 target/riscv: Backup/restore mstatus.SD bit when virtual register swapped
When virtual registers are swapped, mstatus.SD bit should also be
backed up/restored. Otherwise, mstatus.SD bit will be incorrectly kept
across the world switches.

Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Vincent Chen <vincent.chen@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210914013717.881430-1-frank.chang@sifive.com
[ Changes by AF:
 - Convert variable to a uint64_t to fix clang error
]
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-21 12:10:22 +10:00
Bin Meng
758c07c9fc docs/system/riscv: sifive_u: Update U-Boot instructions
In U-Boot v2021.07 release, there were 2 major changes for the
SiFive Unleashed board support:

- Board config name was changed from sifive_fu540_defconfig to
  sifive_unleashed_defconfig
- The generic binman tool was used to generate the FIT image
  (combination of U-Boot proper, DTB and OpenSBI firmware)

which make the existing U-Boot instructions out of date.

Update the doc with latest instructions.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210911153431.10362-1-bmeng.cn@gmail.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-21 07:56:49 +10:00
Frank Chang
ae000c5f65 hw/dma: sifive_pdma: don't set Control.error if 0 bytes to transfer
Real PDMA doesn't set Control.error if there are 0 bytes to be
transferred. The DMA transfer is still success.

The following result is PDMA tested in U-Boot on Unmatched board:

=> mw.l 0x3000000 0x0                      <= Disclaim channel 0
=> mw.l 0x3000000 0x1                      <= Claim channel 0
=> mw.l 0x3000004 0x55000000               <= wsize = rsize = 5 (2^5 = 32 bytes)
=> mw.q 0x3000008 0x0                      <= NextBytes = 0
=> mw.q 0x3000010 0x84000000               <= NextDestination = 0x84000000
=> mw.q 0x3000018 0x84001000               <= NextSource = 0x84001000
=> mw.l 0x84000000 0x87654321              <= Fill test data to dst
=> mw.l 0x84001000 0x12345678              <= Fill test data to src
=> md.l 0x84000000 1; md.l 0x84001000 1    <= Dump src/dst memory contents
84000000: 87654321                               !Ce.
84001000: 12345678                               xV4.
=> md.l 0x3000000 8                        <= Dump PDMA status
03000000: 00000001 55000000 00000000 00000000    .......U........
03000010: 84000000 00000000 84001000 00000000    ................
=> mw.l 0x3000000 0x3                      <= Set channel 0 run and claim bits
=> md.l 0x3000000 8                        <= Dump PDMA status
03000000: 40000001 55000000 00000000 00000000    ...@...U........
03000010: 84000000 00000000 84001000 00000000    ................
=> md.l 0x84000000 1; md.l 0x84001000 1    <= Dump src/dst memory contents
84000000: 87654321                               !Ce.
84001000: 12345678                               xV4.

Signed-off-by: Frank Chang <frank.chang@sifive.com>
Tested-by: Max Hsu <max.hsu@sifive.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 20210912130553.179501-5-frank.chang@sifive.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-21 07:56:49 +10:00
Green Wan
e22d90f5f9 hw/dma: sifive_pdma: allow non-multiple transaction size transactions
Real PDMA is able to deal with non-multiple transaction size transactions.

The following result is PDMA tested in U-Boot on Unmatched board:

=> mw.l 0x3000000 0x0                      <= Disclaim channel 0
=> mw.l 0x3000000 0x1                      <= Claim channel 0
=> mw.l 0x3000004 0x11000000               <= wsize = rsize = 1 (2^1 = 2 bytes)
=> mw.q 0x3000008 0x3                      <= NextBytes = 3
=> mw.q 0x3000010 0x84000000               <= NextDestination = 0x84000000
=> mw.q 0x3000018 0x84001000               <= NextSource = 0x84001000
=> mw.l 0x84000000 0x87654321              <= Fill test data to dst
=> mw.l 0x84001000 0x12345678              <= Fill test data to src
=> md.l 0x84000000 1; md.l 0x84001000 1    <= Dump src/dst memory contents
84000000: 87654321                               !Ce.
84001000: 12345678                               xV4.
=> md.l 0x3000000 8                        <= Dump PDMA status
03000000: 00000001 11000000 00000003 00000000    ................
03000010: 84000000 00000000 84001000 00000000    ................
=> mw.l 0x3000000 0x3                      <= Set channel 0 run and claim bits
=> md.l 0x3000000 8                        <= Dump PDMA status
03000000: 40000001 11000000 00000003 00000000    ...@............
03000010: 84000000 00000000 84001000 00000000    ................
=> md.l 0x84000000 1; md.l 0x84001000 1    <= Dump src/dst memory contents
84000000: 87345678                               xV4.
84001000: 12345678                               xV4.

Signed-off-by: Green Wan <green.wan@sifive.com>
Reviewed-by: Frank Chang <frank.chang@sifive.com>
Tested-by: Max Hsu <max.hsu@sifive.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Message-id: 20210912130553.179501-4-frank.chang@sifive.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-21 07:56:49 +10:00
Frank Chang
9a8c26c08c hw/dma: sifive_pdma: claim bit must be set before DMA transactions
Real PDMA must have Control.claim bit to be set before
Control.run bit is set to start any DMA transactions.
Otherwise nothing will be transferred.

The following result is PDMA tested in U-Boot on Unmatched board:

=> mw.l 0x3000000 0x0                      <= Disclaim channel 0
                                              (Channel 0 is not claimed)
=> mw.l 0x3000004 0x55000000               <= wsize = rsize = 5 (2^5 = 32 bytes)
=> mw.q 0x3000008 0x2                      <= NextBytes = 2
=> mw.q 0x3000010 0x84000000               <= NextDestination = 0x84000000
=> mw.q 0x3000018 0x84001000               <= NextSource = 0x84001000
=> mw.l 0x84000000 0x87654321              <= Fill test data to dst
=> mw.l 0x84001000 0x12345678              <= Fill test data to src
=> md.l 0x84000000 1; md.l 0x84001000 1    <= Dump src/dst memory contents
84000000: 87654321                               !Ce.
84001000: 12345678                               xV4.
=> md.l 0x3000000 8                        <= Dump PDMA status
03000000: 00000000 55000000 00000002 00000000    .......U........
03000010: 84000000 00000000 84001000 00000000    ................
=> mw.l 0x3000000 0x3                      <= Set channel 0 run and claim bits
=> md.l 0x3000000 8                        <= Dump PDMA status
03000000: 00000001 66000000 00000000 00000000    .......f........
03000010: 00000000 00000000 00000000 00000000    ................
=> md.l 0x84000000 1; md.l 0x84001000 1    <= Dump src/dst memory contents
84000000: 87654321                               !Ce.
84001000: 12345678                               xV4.

Signed-off-by: Frank Chang <frank.chang@sifive.com>
Tested-by: Max Hsu <max.hsu@sifive.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 20210912130553.179501-3-frank.chang@sifive.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-21 07:56:49 +10:00
Frank Chang
de7c7988d2 hw/dma: sifive_pdma: reset Next* registers when Control.claim is set
Setting Control.claim clears all of the chanel's Next registers.
This is effective only when Control.claim is set from 0 to 1.

Signed-off-by: Frank Chang <frank.chang@sifive.com>
Tested-by: Max Hsu <max.hsu@sifive.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 20210912130553.179501-2-frank.chang@sifive.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-21 07:56:49 +10:00
Anup Patel
954886ea6d hw/riscv: virt: Add optional ACLINT support to virt machine
We extend virt machine to emulate ACLINT devices only when "aclint=on"
parameter is passed along with machine name in QEMU command-line.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 20210831110603.338681-5-anup.patel@wdc.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-21 07:56:49 +10:00
Anup Patel
0ffc1a9522 hw/riscv: virt: Re-factor FDT generation
We re-factor and break the FDT generation into smaller functions
so that it is easier to modify FDT generation for different
configurations of virt machine.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 20210831110603.338681-4-anup.patel@wdc.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-21 07:56:49 +10:00
Anup Patel
b8fb878aa2 hw/intc: Upgrade the SiFive CLINT implementation to RISC-V ACLINT
The RISC-V ACLINT is more modular and backward compatible with
original SiFive CLINT so instead of duplicating the original
SiFive CLINT implementation we upgrade the current SiFive CLINT
implementation to RISC-V ACLINT implementation.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 20210831110603.338681-3-anup.patel@wdc.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-21 07:56:49 +10:00
Anup Patel
cc63a18282 hw/intc: Rename sifive_clint sources to riscv_aclint sources
We will be upgrading SiFive CLINT implementation into RISC-V ACLINT
implementation so let's first rename the sources.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 20210831110603.338681-2-anup.patel@wdc.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-21 07:56:49 +10:00
Alistair Francis
ea6eaa0604 sifive_u: Connect the SiFive PWM device
Connect the SiFive PWM device and expose it via the device tree.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 22f98648b4e012f78529a56f5ca60b0b27852a4d.1631159656.git.alistair.francis@wdc.com
2021-09-21 07:56:49 +10:00
Alistair Francis
5bf6f1acdd hw/timer: Add SiFive PWM support
This is the initial commit of the SiFive PWM timer. This is used by
guest software as a timer and is included in the SiFive FU540 SoC.

Signed-off-by: Justin Restivo <jrestivo@draper.com>
Signed-off-by: Alexandra Clifford <aclifford@draper.com>
Signed-off-by: Amanda Strnad <astrnad@draper.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 9f70a210acbfaf0e1ea6ad311ab892ac69134d8b.1631159656.git.alistair.francis@wdc.com
2021-09-21 07:56:49 +10:00
Alistair Francis
57a3a62265 hw/intc: ibex_timer: Convert the timer to use RISC-V CPU GPIO lines
Instead of using riscv_cpu_update_mip() let's instead use the new RISC-V
CPU GPIO lines to set the timer MIP bits.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 84d5b1d5783d2e79eee69a2f7ac480cc0c070db3.1630301632.git.alistair.francis@wdc.com
2021-09-21 07:56:49 +10:00
Alistair Francis
f436ecc315 hw/intc: sifive_plic: Convert the PLIC to use RISC-V CPU GPIO lines
Instead of using riscv_cpu_update_mip() let's instead use the new RISC-V
CPU GPIO lines to set the external MIP bits.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 0364190bfa935058a845c0fa1ecf650328840ad5.1630301632.git.alistair.francis@wdc.com
2021-09-21 07:56:49 +10:00
Alistair Francis
e5cc6aaeb5 hw/intc: ibex_plic: Convert the PLIC to use RISC-V CPU GPIO lines
Instead of using riscv_cpu_update_mip() let's instead use the new RISC-V
CPU GPIO lines to set the external MIP bits.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 0a76946981852f5bd15f0c37ab35b253371027a8.1630301632.git.alistair.francis@wdc.com
2021-09-21 07:56:49 +10:00
Alistair Francis
a714b8aa02 hw/intc: sifive_clint: Use RISC-V CPU GPIO lines
Instead of using riscv_cpu_update_mip() let's instead use the new RISC-V
CPU GPIO lines to set the timer and soft MIP bits.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Message-id: 946e1ef5e268b24084c7ddad84c146de62a56736.1630301632.git.alistair.francis@wdc.com
2021-09-21 07:56:49 +10:00
Alistair Francis
0f0b70eeec target/riscv: Expose interrupt pending bits as GPIO lines
Expose the 12 interrupt pending bits in MIP as GPIO lines.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 069d6162f0bc2f4a4f5a44e73f6442b11c703c53.1630301632.git.alistair.francis@wdc.com
2021-09-21 07:56:49 +10:00
LIU Zhiwei
15732b8ed2 target/riscv: Fix satp write
These variables should be target_ulong. If truncated to int,
the bool conditions they indicate will be wrong.

As satp is very important for Linux, this bug almost fails every boot.

Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210901124539.222868-1-zhiwei_liu@c-sky.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2021-09-21 07:56:49 +10:00
Alistair Francis
a44da25aa6 target/riscv: Update the ePMP CSR address
Update the ePMP CSRs to match the 0.9.3 ePMP spec
6145574723/Smepmp/Smepmp.pdf

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Message-id: 28c908de60b9b04fa20e63d113885c98586053f3.1630543194.git.alistair.francis@wdc.com
2021-09-21 07:56:49 +10:00
Peter Maydell
326ff8dd09 -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
 
 iQEcBAABAgAGBQJhRE8cAAoJEO8Ells5jWIRY08H/3IZ2sVgJhMUUK1HrMQwF+WX
 lIEwyNSYI2dlyDtlR0/gJG8jatRa15EW3WVn7ukhlNYWHmLqrRVpteA+xtqsgs8n
 Mjh/csZqNi2PoC7I6Ec6BxfXE84zinieN+OrxY5Rel0ol6Of5nY1pKZ9Z2nBMR9l
 6Z3Ufy6soSMHjSE9PQ2lY5LjjjNLz5HJoL6HRXN/oVF7JHgy9QffZgdgpcwh7djz
 cCetUjnPIBkk0C59ENM3an872cP6Is/CeUoDXTacukGNWJsJng4YplvJrBy3bU40
 tYSBTw98LIi453ppMNKbthM72Jjk6VfQLWtaSWKQfVXEvciGXCKTwbNB7ZWalFY=
 =fW1/
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging

# gpg: Signature made Fri 17 Sep 2021 09:17:32 BST
# gpg:                using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F  3562 EF04 965B 398D 6211

* remotes/jasowang/tags/net-pull-request:
  virtio-net: fix use after unmap/free for sg
  ebpf: only include in system emulators

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-09-20 16:17:05 +01:00
Peter Maydell
c3f76fbca6 Python Pull request
This fixes the check-python-tox job.
 
 CI including optional jobs is all green:
 https://gitlab.com/jsnow/qemu/-/pipelines/372151147
 -----BEGIN PGP SIGNATURE-----
 
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Merge remote-tracking branch 'remotes/jsnow-gitlab/tags/python-pull-request' into staging

Python Pull request

This fixes the check-python-tox job.

CI including optional jobs is all green:
https://gitlab.com/jsnow/qemu/-/pipelines/372151147

# gpg: Signature made Thu 16 Sep 2021 23:05:35 BST
# gpg:                using RSA key F9B7ABDBBCACDF95BE76CBD07DEF8106AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>" [full]
# Primary key fingerprint: FAEB 9711 A12C F475 812F  18F2 88A9 064D 1835 61EB
#      Subkey fingerprint: F9B7 ABDB BCAC DF95 BE76  CBD0 7DEF 8106 AAFC 390E

* remotes/jsnow-gitlab/tags/python-pull-request:
  python: pylint 2.11 support
  python: Update for pylint 2.10

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-09-20 14:20:03 +01:00