Commit Graph

139 Commits

Author SHA1 Message Date
Cédric Le Goater
f65f6ad5a7 aspeed: Introduce a "bmc-console" machine option
Most of the Aspeed machines use the UART5 device for the boot console,
and QEMU connects the first serial Chardev to this SoC device for this
purpose. See routine connect_serial_hds_to_uarts().

Nevertheless, some machines use another boot console, such as the fuji,
and commit 5d63d0c76c ("hw/arm/aspeed: Allow machine to set UART
default") introduced a SoC class attribute 'uart_default' and property
to be able to change the boot console device. It was later changed by
commit d2b3eaefb4 ("aspeed: Refactor UART init for multi-SoC machines").

The "bmc-console" machine option goes a step further and lets the user define
the UART device from the QEMU command line without introducing a new
machine definition. For instance, to use device UART3 (mapped on
/dev/ttyS2 under Linux) instead of the default UART5, one would use :

  -M ast2500-evb,bmc-console=uart3

Cc: Abhishek Singh Dagur <abhishek@drut.io>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-06-15 18:35:58 +02:00
Richard Henderson
59b6b42cd3 target/arm: Enable FEAT_LSE2 for -cpu max
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230530191438.411344-21-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-06-06 10:19:39 +01:00
qianfan Zhao
8d7f954a7f docs: system: arm: Introduce bananapi_m2u
Add documents for Banana Pi M2U

Signed-off-by: qianfan Zhao <qianfanguijin@163.com>
Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com>
[PMM: Minor format fixes to correct sphinx errors]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-06-06 10:19:34 +01:00
Vikram Garhwal
042d6b0255 xlnx-versal: Connect Xilinx VERSAL CANFD controllers
Connect CANFD0 and CANFD1 on the Versal-virt machine and update xlnx-versal-virt
document with CANFD command line examples.

Signed-off-by: Vikram Garhwal <vikram.garhwal@amd.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-06-06 10:19:30 +01:00
Marcin Juszkiewicz
ec683110de docs: sbsa: correct graphics card name
We moved from VGA to Bochs to have PCIe card.

Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-05-30 15:50:17 +01:00
Peter Maydell
dd17143fce target/arm: Implement FEAT_PAN3
FEAT_PAN3 adds an EPAN bit to SCTLR_EL1 and SCTLR_EL2, which allows
the PAN bit to make memory non-privileged-read/write if it is
user-executable as well as if it is user-read/write.

Implement this feature and enable it in the AArch64 'max' CPU.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230331145045.2584941-4-peter.maydell@linaro.org
2023-04-20 10:21:16 +01:00
Strahinja Jankovic
c663fc9fbc hw/arm: Add WDT to Allwinner-H3 and Orangepi-PC
This patch adds WDT to Allwinner-H3 and Orangepi-PC.
WDT is added as an overlay to the Timer module memory area.

Signed-off-by: Strahinja Jankovic <strahinja.p.jankovic@gmail.com>
Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id: 20230326202256.22980-4-strahinja.p.jankovic@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-04-20 10:21:14 +01:00
Strahinja Jankovic
470f9f2d93 hw/arm: Add WDT to Allwinner-A10 and Cubieboard
This patch adds WDT to Allwinner-A10 and Cubieboard.
WDT is added as an overlay to the Timer module memory map.

Signed-off-by: Strahinja Jankovic <strahinja.p.jankovic@gmail.com>
Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id: 20230326202256.22980-3-strahinja.p.jankovic@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-04-20 10:21:13 +01:00
Peter Maydell
d4e2cc9aa4 docs/system/arm/cpu-features.rst: Fix formatting
The markup for the Arm CPU feature documentation is incorrect,
and results in the HTML not rendering correctly -- the first
line of each description is rendered in boldface as if it
were part of the option name.

Reformat to match the styling used in cpu-models-x86.rst.inc.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1479
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20230316105808.1414003-1-peter.maydell@linaro.org
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
2023-03-21 13:19:07 +00:00
Karthikeyan Pasupathi
6c323aba40 hw/arm/aspeed: Adding new machine Tiogapass in QEMU
This patch support Tiogapass in QEMU environment.
and introduced EEPROM BMC FRU data support "add tiogapass_bmc_fruid data"
along with the machine support.

Signed-off-by: Karthikeyan Pasupathi <pkarthikeyan1509@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
[ clg: - commit log topic update
       - checkpatch issues
       - Documentation update ]
Message-Id: <20230216184342.253868-1-pkarthikeyan1509@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-03-02 13:57:50 +01:00
Karthikeyan Pasupathi
34f73a81e6 hw/arm/aspeed: Adding new machine Yosemitev2 in QEMU
This patch support Yosemitev2 in QEMU environment.
and introduced EEPROM BMC FRU data support "add fbyv2_bmc_fruid data"
along with the machine support.

Signed-off-by: Karthikeyan Pasupathi <pkarthikeyan1509@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
[ clg: - commit log topic update
       - Documentation update ]
Message-Id: <20230216133326.216017-1-pkarthikeyan1509@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2023-03-02 13:57:50 +01:00
Hao Wu
4d120d7d60 hw/arm: Attach PSPI module to NPCM7XX SoC
Signed-off-by: Hao Wu <wuhaotsh@google.com>
Reviewed-by: Titus Rwantare <titusr@google.com>
Reviewed-by: Philippe Mathieu-Daude <philmd@linaro.org>
Message-id: 20230208235433.3989937-4-wuhaotsh@google.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-02-16 16:00:48 +00:00
Peter Maydell
bb18151d8b target/arm: Enable FEAT_FGT on '-cpu max'
Update the ID registers for TCG's '-cpu max' to report the
presence of FEAT_FGT Fine-Grained Traps support.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Fuad Tabba <tabba@google.com>
Message-id: 20230130182459.3309057-24-peter.maydell@linaro.org
Message-id: 20230127175507.2895013-24-peter.maydell@linaro.org
2023-02-03 12:59:24 +00:00
Alex Bennée
a0a6754bb5 docs: add a new section to outline emulation support
This affects both system and user mode emulation so we should probably
list it up front.

Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-21-alex.bennee@linaro.org>
2023-02-02 10:44:23 +00:00
Strahinja Jankovic
9be8a82c0e {hw/i2c,docs/system/arm}: Allwinner TWI/I2C Emulation
This patch implements Allwinner TWI/I2C controller emulation. Only
master-mode functionality is implemented.

The SPL boot for Cubieboard expects AXP209 PMIC on TWI0/I2C0 bus, so this is
first part enabling the TWI/I2C bus operation.

Since both Allwinner A10 and H3 use the same module, it is added for
both boards.

Docs are also updated for Cubieboard and Orangepi-PC board to indicate
I2C availability.

Signed-off-by: Strahinja Jankovic <strahinja.p.jankovic@gmail.com>
Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id: 20221226220303.14420-4-strahinja.p.jankovic@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-12 16:50:19 +00:00
Felipe Balbi
ee5bffa9fc hw/arm: Add Olimex H405
Olimex makes a series of low-cost STM32 boards. This commit introduces
the minimum setup to support SMT32-H405. See [1] for details

[1] https://www.olimex.com/Products/ARM/ST/STM32-H405/

Signed-off-by: Felipe Balbi <balbi@kernel.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20221230145733.200496-3-balbi@kernel.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2023-01-12 16:50:19 +00:00
Peter Maydell
41654f120f target/arm: Report FEAT_EVT for TCG '-cpu max'
Update the ID registers for TCG's '-cpu max' to report the
FEAT_EVT Enhanced Virtualization Traps support.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-12-15 11:18:20 +00:00
Timofey Kutergin
94bc3b067e target/arm: Add Cortex-A55 CPU
The Cortex-A55 is one of the newer armv8.2+ CPUs; in particular
it supports the Privileged Access Never (PAN) feature. Add
a model of this CPU, so you can use a CPU type on the virt
board that models a specific real hardware CPU, rather than
having to use the QEMU-specific "max" CPU type.

Signed-off-by: Timofey Kutergin <tkutergin@gmail.com>
Message-id: 20221121150819.2782817-1-tkutergin@gmail.com
[PMM: tweaked commit message]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-12-15 11:18:19 +00:00
Gavin Shan
6a48c64eec hw/arm/virt: Add properties to disable high memory regions
The 3 high memory regions are usually enabled by default, but they may
be not used. For example, VIRT_HIGH_GIC_REDIST2 isn't needed by GICv2.
This leads to waste in the PA space.

Add properties ("highmem-redists", "highmem-ecam", "highmem-mmio") to
allow users selectively disable them if needed. After that, the high
memory region for GICv3 or GICv4 redistributor can be disabled by user,
the number of maximal supported CPUs needs to be calculated based on
'vms->highmem_redists'. The follow-up error message is also improved
to indicate if the high memory region for GICv3 and GICv4 has been
enabled or not.

Suggested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-id: 20221029224307.138822-8-gshan@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-12-15 11:18:19 +00:00
Gavin Shan
f40408a9fe hw/arm/virt: Add 'compact-highmem' property
After the improvement to high memory region address assignment is
applied, the memory layout can be changed, introducing possible
migration breakage. For example, VIRT_HIGH_PCIE_MMIO memory region
is disabled or enabled when the optimization is applied or not, with
the following configuration. The configuration is only achievable by
modifying the source code until more properties are added to allow
users selectively disable those high memory regions.

  pa_bits              = 40;
  vms->highmem_redists = false;
  vms->highmem_ecam    = false;
  vms->highmem_mmio    = true;

  # qemu-system-aarch64 -accel kvm -cpu host    \
    -machine virt-7.2,compact-highmem={on, off} \
    -m 4G,maxmem=511G -monitor stdio

  Region             compact-highmem=off         compact-highmem=on
  ----------------------------------------------------------------
  MEM                [1GB         512GB]        [1GB         512GB]
  HIGH_GIC_REDISTS2  [512GB       512GB+64MB]   [disabled]
  HIGH_PCIE_ECAM     [512GB+256MB 512GB+512MB]  [disabled]
  HIGH_PCIE_MMIO     [disabled]                 [512GB       1TB]

In order to keep backwords compatibility, we need to disable the
optimization on machine, which is virt-7.1 or ealier than it. It
means the optimization is enabled by default from virt-7.2. Besides,
'compact-highmem' property is added so that the optimization can be
explicitly enabled or disabled on all machine types by users.

Signed-off-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Tested-by: Zhenyu Zhang <zhenyzha@redhat.com>
Message-id: 20221029224307.138822-7-gshan@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-12-15 11:18:19 +00:00
Stefan Weil
1e458f1127 Fix some typos in documentation and comments
Most of them were found and fixed using codespell.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20221030105944.311940-1-sw@weilnetz.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2022-11-05 20:35:45 +01:00
Richard Henderson
71943a1e90 target/arm: Implement FEAT_HAFDBS, access flag portion
Perform the atomic update for hardware management of the access flag.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20221024051851.3074715-13-richard.henderson@linaro.org
[PMM: Fix accidental PROT_WRITE to PAGE_WRITE; add missing
 main-loop.h include]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-10-27 10:27:24 +01:00
Peter Maydell
e4c93e44ab target/arm: Implement FEAT_E0PD
FEAT_E0PD adds new bits E0PD0 and E0PD1 to TCR_EL1, which allow the
OS to forbid EL0 access to half of the address space.  Since this is
an EL0-specific variation on the existing TCR_ELx.{EPD0,EPD1}, we can
implement it entirely in aa64_va_parameters().

This requires moving the existing regime_is_user() to internals.h
so that the code in helper.c can get at it.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20221021160131.3531787-1-peter.maydell@linaro.org
2022-10-27 10:27:23 +01:00
Peter Maydell
915f62844c docs/system/arm/emulation.rst: Report FEAT_GTG support
FEAT_GTG is a change tho the ID register ID_AA64MMFR0_EL1 so that it
can report a different set of supported granule (page) sizes for
stage 1 and stage 2 translation tables.  As of commit c20281b2a5
we already report the granule sizes that way for '-cpu max', and now
we also correctly make attempts to use unimplemented granule sizes
fail, so we can report the support of the feature in the
documentation.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20221003162315.2833797-4-peter.maydell@linaro.org
2022-10-10 14:52:25 +01:00
Joel Stanley
86a85d73e3 docs/nuvoton: Update URL for images
openpower.xyz was retired some time ago. The OpenBMC Jenkins is where
images can be found these days.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Hao Wu <wuhaotsh@google.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20221004050042.22681-1-joel@jms.id.au
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-10-10 14:52:24 +01:00
Peter Maydell
e31e0f5661 target/arm: Report FEAT_PMUv3p5 for TCG '-cpu max'
Update the ID registers for TCG's '-cpu max' to report a FEAT_PMUv3p5
compliant PMU.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220822132358.3524971-11-peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-09-14 11:19:40 +01:00
Peter Maydell
3fe72e213e target/arm: Advertise FEAT_ETS for '-cpu max'
The architectural feature FEAT_ETS (Enhanced Translation
Synchronization) is a set of tightened guarantees about memory
ordering involving translation table walks:

 * if memory access RW1 is ordered-before memory access RW2 then it
   is also ordered-before any translation table walk generated by RW2
   that generates a translation fault, address size fault or access
   fault

 * TLB maintenance on non-exec-permission translations is guaranteed
   complete after a DSB (ie it does not need the context
   synchronization event that you have to have if you don’t have
   FEAT_ETS)

For QEMU’s implementation we don’t reorder translation table walk
accesses, and we guarantee to finish the TLB maintenance as soon as
the TLB op is done (the tlb_flush functions will complete at the end
of the TLB, and TLB ops always end the TB because they’re sysreg
writes).

So we’re already compliant and all we need to do is say so in the ID
registers for the 'max' CPU.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220819110052.2942289-6-peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-09-14 11:19:40 +01:00
Hao Wu
3b16766b5a target/arm: Add cortex-a35
Add cortex A35 core and enable it for virt board.

Signed-off-by: Hao Wu <wuhaotsh@google.com>
Reviewed-by: Joe Komlodi <komlodi@google.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20220819002015.1663247-1-wuhaotsh@google.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-09-14 11:19:39 +01:00
Daniel P. Berrangé
7a21bee2aa misc: fix commonly doubled up words
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20220707163720.1421716-5-berrange@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-08-01 11:58:02 +02:00
Cédric Le Goater
1d6fb3d058 docs: aspeed: Minor updates
Some more controllers have been modeled recently. Reflect that in the
list of supported devices. New machines were also added.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Peter Delevoryas <peter@pjd.dev>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Message-Id: <20220706172131.809255-1-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-07-14 16:24:38 +02:00
Peter Delevoryas
19d7c0d460 docs: aspeed: Add fby35 multi-SoC machine section
Signed-off-by: Peter Delevoryas <peter@pjd.dev>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
[ clg: - fixed URL links
       - Moved Facebook Yosemite section at the end of the file ]
Message-Id: <20220705191400.41632-10-peter@pjd.dev>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-07-14 16:24:38 +02:00
Richard Henderson
78cb977666 target/arm: Enable SME for -cpu max
Note that SME remains effectively disabled for user-only,
because we do not yet set CPACR_EL1.SMEN.  This needs to
wait until the kernel ABI is implemented.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-33-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-11 13:43:51 +01:00
Jason A. Donenfeld
5242876f37 hw/arm/virt: dt: add rng-seed property
In 60592cfed2 ("hw/arm/virt: dt: add kaslr-seed property"), the
kaslr-seed property was added, but the equally as important rng-seed
property was forgotten about, which has identical semantics for a
similar purpose. This commit implements it in exactly the same way as
kaslr-seed. It then changes the name of the disabling option to reflect
that this has more to do with randomness vs determinism, rather than
something particular about kaslr.

Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
[PMM: added deprecated.rst section for the deprecation]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-07-07 11:36:07 +01:00
Richard Henderson
e74c097638 target/arm: Add cpu properties for SME
Mirror the properties for SVE.  The main difference is
that any arbitrary set of powers of 2 may be supported,
and not the stricter constraints that apply to SVE.

Include a property to control FEAT_SME_FA64, as failing
to restrict the runtime to the proper subset of insns
could be a major point for bugs.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20220620175235.60881-18-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-06-27 11:18:17 +01:00
Peter Maydell
7ac610206a target/arm: Implement FEAT_DoubleFault
The FEAT_DoubleFault extension adds the following:

 * All external aborts on instruction fetches and translation table
   walks for instruction fetches must be synchronous.  For QEMU this
   is already true.

 * SCR_EL3 has a new bit NMEA which disables the masking of SError
   interrupts by PSTATE.A when the SError interrupt is taken to EL3.
   For QEMU we only need to make the bit writable, because we have no
   sources of SError interrupts.

 * SCR_EL3 has a new bit EASE which causes synchronous external
   aborts taken to EL3 to be taken at the same entry point as SError.
   (Note that this does not mean that they are SErrors for purposes
   of PSTATE.A masking or that the syndrome register reports them as
   SErrors: it just means that the vector offset is different.)

 * The existing SCTLR_EL3.IESB has an effective value of 1 when
   SCR_EL3.NMEA is 1.  For QEMU this is a no-op because we don't need
   different behaviour based on IESB (we don't need to do anything to
   ensure that error exceptions are synchronized).

So for QEMU the things we need to change are:
 * Make SCR_EL3.{NMEA,EASE} writable
 * When taking a synchronous external abort at EL3, adjust the
   vector entry point if SCR_EL3.EASE is set
 * Advertise the feature in the ID registers

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220531151431.949322-1-peter.maydell@linaro.org
2022-06-08 19:38:46 +01:00
Peter Maydell
d507bc3b05 target/arm: Declare support for FEAT_RASv1p1
The architectural feature RASv1p1 introduces the following new
features:
 * new registers ERXPFGCDN_EL1, ERXPFGCTL_EL1 and ERXPFGF_EL1
 * new bits in the fine-grained trap registers that control traps
   for these new registers
 * new trap bits HCR_EL2.FIEN and SCR_EL3.FIEN that control traps
   for ERXPFGCDN_EL1, ERXPFGCTL_EL1, ERXPFGP_EL1
 * a larger number of the ERXMISC<n>_EL1 registers
 * the format of ERR<n>STATUS registers changes

The architecture permits that if ERRIDR_EL1.NUM is 0 (as it is for
QEMU) then all these new registers may UNDEF, and the HCR_EL2.FIEN
and SCR_EL3.FIEN bits may be RES0.  We don't have any ERR<n>STATUS
registers (again, because ERRIDR_EL1.NUM is 0).  QEMU does not yet
implement the fine-grained-trap extension.  So there is nothing we
need to implement to be compliant with the feature spec.  Make the
'max' CPU report the feature in its ID registers, and document it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220531114258.855804-1-peter.maydell@linaro.org
2022-06-08 19:38:46 +01:00
Peter Maydell
95d0f1d80e docs/system/arm: Add FEAT_HCX to list of emulated features
In commit 5814d587fe we added support for emulating
FEAT_HCX (Support for the HCRX_EL2 register). However we
forgot to add it to the list in emulated.rst. Correct the
omission.

Fixes: 5814d587fe ("target/arm: Enable FEAT_HCX for -cpu max")
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220520084320.424166-1-peter.maydell@linaro.org
2022-05-30 10:26:52 +01:00
Peter Delevoryas
264a360ae0 docs: aspeed: Add fby35 board
Add fby35 to the list of Aspeed boards.

Signed-off-by: Peter Delevoryas <pdel@fb.com>
Message-Id: <20220506193354.990532-2-pdel@fb.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-05-25 10:31:33 +02:00
Jamin Lin
3d393bb7d3 docs: add minibmc section in aspeed document
Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220506031521.13254-2-jamin_lin@aspeedtech.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-05-25 10:31:33 +02:00
Peter Maydell
75662f36e3 target/arm: Implement FEAT_IDST
The Armv8.4 feature FEAT_IDST specifies that exceptions generated by
read accesses to the feature ID space should report a syndrome code
of 0x18 (EC_SYSTEMREGISTERTRAP) rather than 0x00 (EC_UNCATEGORIZED).
The feature ID space is defined to be:
 op0 == 3, op1 == {0,1,3}, CRn == 0, CRm == {0-7}, op2 == {0-7}

In our implementation we might return the EC_UNCATEGORIZED syndrome
value for a system register access in four cases:
 * no reginfo struct in the hashtable
 * cp_access_ok() fails (ie ri->access doesn't permit the access)
 * ri->accessfn returns CP_ACCESS_TRAP_UNCATEGORIZED at runtime
 * ri->type includes ARM_CP_RAISES_EXC, and the readfn raises
   an UNDEF exception at runtime

We have very few regdefs that set ARM_CP_RAISES_EXC, and none of
them are in the feature ID space. (In the unlikely event that any
are added in future they would need to take care of setting the
correct syndrome themselves.) This patch deals with the other
three cases, and enables FEAT_IDST for AArch64 -cpu max.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220509155457.3560724-1-peter.maydell@linaro.org
2022-05-19 16:19:02 +01:00
Peter Maydell
e04bf5a793 target/arm: Enable FEAT_S2FWB for -cpu max
Enable the FEAT_S2FWB for -cpu max. Since FEAT_S2FWB requires that
CLIDR_EL1.{LoUU,LoUIS} are zero, we explicitly squash these (the
inherited CLIDR_EL1 value from the Cortex-A57 has them as 1).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220505183950.2781801-5-peter.maydell@linaro.org
2022-05-19 16:19:02 +01:00
Richard Henderson
5db6de806a target/arm: Define neoverse-n1
Enable the n1 for virt and sbsa board use.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220506180242.216785-25-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-05-09 11:47:54 +01:00
Richard Henderson
2f6283fc8e target/arm: Define cortex-a76
Enable the a76 for virt and sbsa board use.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220506180242.216785-24-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-05-09 11:47:54 +01:00
Richard Henderson
6d9650191a target/arm: Enable FEAT_DGH for -cpu max
This extension concerns not merging memory access, which TCG does
not implement.  Thus we can trivially enable this feature.
Add a comment to handle_hint for the DGH instruction, but no code.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220506180242.216785-23-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-05-09 11:47:54 +01:00
Richard Henderson
3082b86b10 target/arm: Enable FEAT_CSV3 for -cpu max
This extension concerns cache speculation, which TCG does
not implement.  Thus we can trivially enable this feature.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220506180242.216785-22-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-05-09 11:47:54 +01:00
Richard Henderson
7cb1e61851 target/arm: Enable FEAT_CSV2_2 for -cpu max
There is no branch prediction in TCG, therefore there is no
need to actually include the context number into the predictor.
Therefore all we need to do is add the state for SCXTNUM_ELx.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220506180242.216785-21-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-05-09 11:47:54 +01:00
Richard Henderson
74b17e1669 target/arm: Enable FEAT_CSV2 for -cpu max
This extension concerns branch speculation, which TCG does
not implement.  Thus we can trivially enable this feature.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220506180242.216785-20-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-05-09 11:47:54 +01:00
Richard Henderson
880cd10e84 target/arm: Enable FEAT_IESB for -cpu max
This feature is AArch64 only, and applies to physical SErrors,
which QEMU does not implement, thus the feature is a nop.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220506180242.216785-19-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-05-09 11:47:54 +01:00
Richard Henderson
e95c74c5e5 target/arm: Enable FEAT_RAS for -cpu max
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220506180242.216785-18-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-05-09 11:47:54 +01:00
Richard Henderson
8fc756b6be target/arm: Enable FEAT_Debugv8p4 for -cpu max
This extension concerns changes to the External Debug interface,
with Secure and Non-secure access to the debug registers, and all
of it is outside the scope of QEMU.  Indicating support for this
is mandatory with FEAT_SEL2, which we do implement.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220506180242.216785-13-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2022-05-09 11:47:53 +01:00