Currently configure's has_sphinx_build() check simply runs a dummy
sphinx-build and either passes or fails. This means that "no
sphinx-build at all" and "sphinx-build exists but is too old" are
both reported the same way.
Further, we want to assume that all the Python we write is running
with at least Python 3.5; configure checks that for our scripts, but
Sphinx extensions run with whatever Python version sphinx-build
itself is using.
Add a check to our conf.py which makes sphinx-build fail if it would
be running our extensions with an old Python, and handle this
in configure so we can report failure helpfully to the user.
This will mean that configure --enable-docs will fail like this
if the sphinx-build provided is not suitable:
Warning: sphinx-build exists but it is either too old or uses too old a Python version
ERROR: User requested feature docs
configure was not able to find it.
Install texinfo, Perl/perl-podlators and a Python 3 version of python-sphinx
(As usual, the default is to simply not build the docs, as we would
if sphinx-build wasn't present at all.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Message-Id: <20200213175647.17628-3-peter.maydell@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
The next commit will require a sphinx-build that uses Python 3. On
some systems, sphinx-build is fine, on others you need to use
sphinx-build-3. To keep things working out of the box on both kinds
of systems, try sphinx-build-3, then sphinx-build.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <87a75lqe8e.fsf@dusky.pond.sub.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
This is a fairly light-weight pull request, but I wanted to send it out to
avoid the Goldfish stuff getting buried as the next PR should contain the H
extension implementation.
As far as this PR goes, it contains:
* The addition of syscon device tree nodes for reboot and poweroff, which
allows Linux to control QEMU without an additional driver. The existing
device was already compatible with the syscon interface.
* A fix to our GDB stub to avoid confusing XLEN and FLEN, specifically useful
for rv32id-based systems.
* A device emulation for the Goldfish RTC device, a simple memory-mapped RTC.
* The addition of the Goldfish RTC device to the RISC-V virt board.
This passes "make check" and boots buildroot for me.
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Merge remote-tracking branch 'remotes/palmer/tags/riscv-for-master-5.0-sf2' into staging
RISC-V Patches for the 5.0 Soft Freeze, Part 2
This is a fairly light-weight pull request, but I wanted to send it out to
avoid the Goldfish stuff getting buried as the next PR should contain the H
extension implementation.
As far as this PR goes, it contains:
* The addition of syscon device tree nodes for reboot and poweroff, which
allows Linux to control QEMU without an additional driver. The existing
device was already compatible with the syscon interface.
* A fix to our GDB stub to avoid confusing XLEN and FLEN, specifically useful
for rv32id-based systems.
* A device emulation for the Goldfish RTC device, a simple memory-mapped RTC.
* The addition of the Goldfish RTC device to the RISC-V virt board.
This passes "make check" and boots buildroot for me.
# gpg: Signature made Mon 10 Feb 2020 21:28:04 GMT
# gpg: using RSA key 2B3C3747446843B24A943A7A2E1319F35FBB1889
# gpg: issuer "palmer@dabbelt.com"
# gpg: Good signature from "Palmer Dabbelt <palmer@dabbelt.com>" [unknown]
# gpg: aka "Palmer Dabbelt <palmer@sifive.com>" [unknown]
# gpg: aka "Palmer Dabbelt <palmerdabbelt@google.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 00CE 76D1 8349 60DF CE88 6DF8 EF4C A150 2CCB AB41
# Subkey fingerprint: 2B3C 3747 4468 43B2 4A94 3A7A 2E13 19F3 5FBB 1889
* remotes/palmer/tags/riscv-for-master-5.0-sf2:
MAINTAINERS: Add maintainer entry for Goldfish RTC
riscv: virt: Use Goldfish RTC device
hw: rtc: Add Goldfish RTC device
riscv: Separate FPU register size from core register size in gdbstub [v2]
riscv/virt: Add syscon reboot and poweroff DT nodes
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Currently we insist on using 'sphinx-build' from the $PATH;
allow the user to specify the binary to use. This will be
more useful as we become pickier about the capabilities
we require (eg needing a Python 3 sphinx-build).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Message-Id: <20200213175647.17628-2-peter.maydell@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
The current documentation is fairly terse and not easy to decode
for someone who's not intimately familiar with the inner workings
of timer devices. Expand on it by providing a somewhat verbose
description of what behavior each policy will result in, as seen
from both the guest OS and host point of view.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Message-Id: <20200211183744.210298-1-abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
* i.MX: Fix inverted sense of register bits in watchdog timer
* i.MX: Add support for WDT on i.MX6
* arm/virt: cleanups to ACPI tables
* Implement ARMv8.1-VMID16 extension
* Implement ARMv8.1-PAN
* Implement ARMv8.2-UAO
* Implement ARMv8.2-ATS1E1
* ast2400/2500/2600: Wire up EHCI controllers
* hw/char/exynos4210_uart: Fix memleaks in exynos4210_uart_init
* hw/arm/raspi: Clean up the board code
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pyLnCW3q6t+rYDxqw6gvYudINtCSrmEHncEOAoqPxxFmc3YDJ6P3TfmiTKX3bioo
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20200213' into staging
target-arm queue:
* i.MX: Fix inverted sense of register bits in watchdog timer
* i.MX: Add support for WDT on i.MX6
* arm/virt: cleanups to ACPI tables
* Implement ARMv8.1-VMID16 extension
* Implement ARMv8.1-PAN
* Implement ARMv8.2-UAO
* Implement ARMv8.2-ATS1E1
* ast2400/2500/2600: Wire up EHCI controllers
* hw/char/exynos4210_uart: Fix memleaks in exynos4210_uart_init
* hw/arm/raspi: Clean up the board code
# gpg: Signature made Thu 13 Feb 2020 14:40:34 GMT
# 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-20200213: (46 commits)
target/arm: Implement ARMv8.1-VMID16 extension
hw/arm/raspi: Extract the cores count from the board revision
hw/arm/raspi: Use a unique raspi_machine_class_init() method
hw/arm/raspi: Extract the board model from the board revision
hw/arm/raspi: Set default RAM size to size encoded in board revision
hw/arm/raspi: Let class_init() directly call raspi_machine_init()
hw/arm/raspi: Make board_rev a field of RaspiMachineClass
hw/arm/raspi: Make machines children of abstract RaspiMachineClass
hw/arm/raspi: Trivial code movement
hw/arm/raspi: Extract the processor type from the board revision
hw/arm/raspi: Extract the RAM size from the board revision
hw/arm/raspi: Extract the version from the board revision
hw/arm/raspi: Correct the board descriptions
hw/arm/raspi: Use BCM2708 machine type with pre Device Tree kernels
hw/char/exynos4210_uart: Fix memleaks in exynos4210_uart_init
hw/arm: ast2600: Wire up EHCI controllers
hw/arm: ast2400/ast2500: Wire up EHCI controllers
target/arm: Enable ARMv8.2-UAO in -cpu max
target/arm: Implement UAO semantics
target/arm: Update MSR access to UAO
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add support for tcg helpers with 7 arguments.
Add support for gvec helpers with 5 arguments.
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zWPiR4p0Qv2V+zB4ATzLXVDmTEFOPkSgENjstVtFKgMiOerD6DHkpL8WMzIOLfwL
TIZB/N3zQzOXjAK3w1LECTA69gYB9/c3lxlK7iyAyjGpDMjAdqV4A+XhLwe8/ZPK
NmnLZg==
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Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20200212' into staging
Fix breakpoint invalidation.
Add support for tcg helpers with 7 arguments.
Add support for gvec helpers with 5 arguments.
# gpg: Signature made Thu 13 Feb 2020 00:21:34 GMT
# gpg: using RSA key 7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg: issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F
* remotes/rth/tags/pull-tcg-20200212:
tcg: Add tcg_gen_gvec_5_ptr
tcg: Add support for a helper with 7 arguments
exec: flush CPU TB cache in breakpoint_invalidate
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The ARMv8.1-VMID16 extension extends the VMID from 8 bits to 16 bits:
* the ID_AA64MMFR1_EL1.VMIDBits field specifies whether the VMID is
8 or 16 bits
* the VMID field in VTTBR_EL2 is extended to 16 bits
* VTCR_EL2.VS lets the guest specify whether to use the full 16 bits,
or use the backwards-compatible 8 bits
For QEMU implementing this is trivial:
* we do not track VMIDs in TLB entries, so we never use the VMID field
* we treat any write to VTTBR_EL2, not just a change to the VMID field
bits, as a "possible VMID change" that causes us to throw away TLB
entries, so that code doesn't need changing
* we allow the guest to read/write the VTCR_EL2.VS bit already
So all that's missing is the ID register part: report that we support
VMID16 in our 'max' CPU.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200210120146.17631-1-peter.maydell@linaro.org
The count of ARM cores is encoded in the board revision. Add a
helper to extract the number of cores, and use it. This will be
helpful when we add the Raspi0/1 that have a single core.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20200208165645.15657-14-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: tweaked commit message as suggested by Igor]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
With the exception of the ignore_memory_transaction_failures
flag set for the raspi2, both machine_class_init() methods
are now identical. Merge them to keep a unique method.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20200208165645.15657-13-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The board revision encode the model type. Add a helper
to extract the model, and use it.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20200208165645.15657-12-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We added a helper to extract the RAM size from the board
revision, and made board_rev a field of RaspiMachineClass.
The class_init() can now use the helper to extract from the
board revision the board-specific amount of RAM.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20200208165645.15657-11-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
raspi_machine_init() access to board_rev via RaspiMachineClass.
raspi2_init() and raspi3_init() do nothing. Call raspi_machine_init
directly.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20200208165645.15657-10-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We want to have a common class_init(). The only value that
matters (and changes) is the board revision.
Pass the board_rev as class_data to class_init().
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20200208165645.15657-9-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
QOM'ify RaspiMachineState. Now machines inherit of RaspiMachineClass.
Cc: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20200208165645.15657-8-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
There is no point in creating the SoC object before allocating the RAM.
Move the call to keep all the SoC-related calls together.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 20200208165645.15657-7-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The board revision encode the processor type. Add a helper
to extract the type, and use it.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20200208165645.15657-6-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The board revision encode the amount of RAM. Add a helper
to extract the RAM size, and use it.
Since the amount of RAM is fixed (it is impossible to physically
modify to have more or less RAM), do not allow sizes different
than the one anounced by the manufacturer.
Acked-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20200208165645.15657-5-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The board revision encode the board version. Add a helper
to extract the version, and use it.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20200208165645.15657-4-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We hardcode the board revision as 0xa21041 for the raspi2, and
0xa02082 for the raspi3:
166 static void raspi_init(MachineState *machine, int version)
167 {
...
194 int board_rev = version == 3 ? 0xa02082 : 0xa21041;
These revision codes are for the 2B and 3B models, see:
https://www.raspberrypi.org/documentation/hardware/raspberrypi/revision-codes/README.md
Correct the board description.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20200208165645.15657-3-f4bug@amsat.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
When booting without device tree, the Linux kernels uses the $R1
register to determine the machine type. The list of values is
registered at [1].
There are two entries for the Raspberry Pi:
- https://www.arm.linux.org.uk/developer/machines/list.php?mid=3138
name: MACH_TYPE_BCM2708
value: 0xc42 (3138)
status: Active, not mainlined
date: 15 Oct 2010
- https://www.arm.linux.org.uk/developer/machines/list.php?mid=4828
name: MACH_TYPE_BCM2835
value: 4828
status: Active, mainlined
date: 6 Dec 2013
QEMU always used the non-mainlined type MACH_TYPE_BCM2708.
The value 0xc43 is registered to 'MX51_GGC' (processor i.MX51), and
0xc44 to 'Western Digital Sharespace NAS' (processor Marvell 88F5182).
The Raspberry Pi foundation bootloader only sets the BCM2708 machine
type, see [2] or [3]:
133 9:
134 mov r0, #0
135 ldr r1, =3138 @ BCM2708 machine id
136 ldr r2, atags @ ATAGS
137 bx r4
U-Boot only uses MACH_TYPE_BCM2708 (see [4]):
25 /*
26 * 2835 is a SKU in a series for which the 2708 is the first or primary SoC,
27 * so 2708 has historically been used rather than a dedicated 2835 ID.
28 *
29 * We don't define a machine type for bcm2709/bcm2836 since the RPi Foundation
30 * chose to use someone else's previously registered machine ID (3139, MX51_GGC)
31 * rather than obtaining a valid ID:-/
32 *
33 * For the bcm2837, hopefully a machine type is not needed, since everything
34 * is DT.
35 */
While the definition MACH_BCM2709 with value 0xc43 was introduced in
a commit described "Add 2709 platform for Raspberry Pi 2" out of the
mainline Linux kernel, it does not seem used, and the platform is
introduced with Device Tree support anyway (see [5] and [6]).
Remove the unused values (0xc43 introduced in commit 1df7d1f930
"raspi: add raspberry pi 2 machine" and 0xc44 in commit bade58166f
"raspi: Raspberry Pi 3 support"), keeping only MACH_TYPE_BCM2708.
[1] https://www.arm.linux.org.uk/developer/machines/
[2] https://github.com/raspberrypi/tools/blob/920c7ed2e/armstubs/armstub7.S#L135
[3] https://github.com/raspberrypi/tools/blob/49719d554/armstubs/armstub7.S#L64
[4] https://gitlab.denx.de/u-boot/u-boot/blob/v2015.04/include/configs/rpi-common.h#L18
[5] https://github.com/raspberrypi/linux/commit/d9fac63adac#diff-6722037d79570df5b392a49e0e006573R526
[6] http://lists.infradead.org/pipermail/linux-rpi-kernel/2015-February/001268.html
Cc: Zoltán Baldaszti <bztemail@gmail.com>
Cc: Pekka Enberg <penberg@iki.fi>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Kshitij Soni <kshitij.soni@broadcom.com>
Cc: Michael Chan <michael.chan@broadcom.com>
Cc: Andrew Baumann <Andrew.Baumann@microsoft.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id: 20200208165645.15657-2-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Initialize EHCI controllers on AST2600 using the existing
TYPE_PLATFORM_EHCI. After this change, booting ast2600-evb
into Linux successfully instantiates a USB interface after
the necessary changes are made to its devicetree files.
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-platform: EHCI generic platform driver
ehci-platform 1e6a3000.usb: EHCI Host Controller
ehci-platform 1e6a3000.usb: new USB bus registered, assigned bus number 1
ehci-platform 1e6a3000.usb: irq 25, io mem 0x1e6a3000
ehci-platform 1e6a3000.usb: USB 2.0 started, EHCI 1.00
usb usb1: Manufacturer: Linux 5.5.0-09825-ga0802f2d0ef5-dirty ehci_hcd
usb 1-1: new high-speed USB device number 2 using ehci-platform
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Message-id: 20200207174548.9087-1-linux@roeck-us.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Initialize EHCI controllers on AST2400 and AST2500 using the existing
TYPE_PLATFORM_EHCI. After this change, booting ast2500-evb into Linux
successfully instantiates a USB interface.
ehci-platform 1e6a3000.usb: EHCI Host Controller
ehci-platform 1e6a3000.usb: new USB bus registered, assigned bus number 1
ehci-platform 1e6a3000.usb: irq 21, io mem 0x1e6a3000
ehci-platform 1e6a3000.usb: USB 2.0 started, EHCI 1.00
usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.05
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: EHCI Host Controller
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200206183437.3979-1-linux@roeck-us.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200208125816.14954-21-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We need only override the current condition under which
TBFLAG_A64.UNPRIV is set.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200208125816.14954-20-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200208125816.14954-19-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add definitions for all of the fields, up to ARMv8.5.
Convert the existing RESERVED register to a full register.
Query KVM for the value of the register for the host.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200208125816.14954-18-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This includes enablement of ARMv8.1-PAN.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200208125816.14954-17-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This is a minor enhancement over ARMv8.1-PAN.
The *_PAN mmu_idx are used with the existing do_ats_write.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200208125816.14954-16-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The PAN bit is preserved, or set as per SCTLR_ELx.SPAN,
plus several other conditions listed in the ARM ARM.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200208125816.14954-15-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
If we have a PAN-enforcing mmu_idx, set prot == 0 if user_rw != 0.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200208125816.14954-14-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Examine the PAN bit for EL1, EL2, and Secure EL1 to
determine if it applies.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200208125816.14954-13-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
For aarch64, there's a dedicated msr (imm, reg) insn.
For aarch32, this is done via msr to cpsr. Writes from el0
are ignored, which is already handled by the CPSR_USER mask.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200208125816.14954-12-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Use this along the exception return path, where we previously
accepted any values.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200208125816.14954-11-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The only remaining use was in op_helper.c. Use PSTATE_SS
directly, and move the commentary so that it is more obvious
what is going on.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200208125816.14954-10-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Using ~0 as the mask on the aarch64->aarch32 exception return
was not even as correct as the CPSR_ERET_MASK that we had used
on the aarch32->aarch32 exception return.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200208125816.14954-9-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
CPSR_ERET_MASK was a useless renaming of CPSR_RESERVED.
The function also takes into account bits that the cpu
does not support.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200208125816.14954-8-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The J bit signals Jazelle mode, and so of course is RES0
when the feature is not enabled.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200208125816.14954-7-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Split this helper out of msr_mask in translate.c. At the same time,
transform the negative reductive logic to positive accumulative logic.
It will be usable along the exception paths.
While touching msr_mask, fix up formatting.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200208125816.14954-6-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
For static const regdefs, file scope is preferred.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200208125816.14954-5-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Include definitions for all of the bits in ID_MMFR3.
We already have a definition for ID_AA64MMFR1.PAN.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200208125816.14954-4-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
To implement PAN, we will want to swap, for short periods
of time, to a different privileged mmu_idx. In addition,
we cannot do this with flushing alone, because the AT*
instructions have both PAN and PAN-less versions.
Add the ARMMMUIdx*_PAN constants where necessary next to
the corresponding ARMMMUIdx* constant.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200208125816.14954-3-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Use a common predicate for querying stage1-ness.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200208125816.14954-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The original code defines a named object for the resource template but
then returns the resource template object itself; the resulted output
is like below:
Method (_CRS, 0, NotSerialized) // _CRS: Current Resource Settings
{
Name (RBUF, ResourceTemplate ()
{
WordBusNumber (ResourceProducer, MinFixed, MaxFixed, PosDecode,
0x0000, // Granularity
0x0000, // Range Minimum
0x00FF, // Range Maximum
0x0000, // Translation Offset
0x0100, // Length
,, )
......
})
Return (ResourceTemplate ()
{
WordBusNumber (ResourceProducer, MinFixed, MaxFixed, PosDecode,
0x0000, // Granularity
0x0000, // Range Minimum
0x00FF, // Range Maximum
0x0000, // Translation Offset
0x0100, // Length
,, )
......
})
}
So the named object "RBUF" is actually useless. The more natural way
is to return RBUF instead, or simply drop RBUF definition.
Choose the latter one to simplify the code.
Signed-off-by: Heyi Guo <guoheyi@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 20200204014325.16279-7-guoheyi@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell