Commit Graph

405 Commits

Author SHA1 Message Date
Kevin Wolf
e7cff9c68d hmp: Pass monitor to mon_get_cpu_env()
mon_get_cpu_env() is indirectly called monitor_parse_arguments() where
the current monitor isn't set yet. Instead of using monitor_cur_env(),
explicitly pass the Monitor pointer to the function.

Without this fix, an HMP command like "x $pc" crashes like this:

  #0  0x0000555555caa01f in mon_get_cpu_sync (mon=0x0, synchronize=true) at ../monitor/misc.c:270
  #1  0x0000555555caa141 in mon_get_cpu (mon=0x0) at ../monitor/misc.c:294
  #2  0x0000555555caa158 in mon_get_cpu_env () at ../monitor/misc.c:299
  #3  0x0000555555b19739 in monitor_get_pc (mon=0x555556ad2de0, md=0x5555565d2d40 <monitor_defs+1152>, val=0) at ../target/i386/monitor.c:607
  #4  0x0000555555cadbec in get_monitor_def (mon=0x555556ad2de0, pval=0x7fffffffc208, name=0x7fffffffc220 "pc") at ../monitor/misc.c:1681
  #5  0x000055555582ec4f in expr_unary (mon=0x555556ad2de0) at ../monitor/hmp.c:387
  #6  0x000055555582edbb in expr_prod (mon=0x555556ad2de0) at ../monitor/hmp.c:421
  #7  0x000055555582ee79 in expr_logic (mon=0x555556ad2de0) at ../monitor/hmp.c:455
  #8  0x000055555582eefe in expr_sum (mon=0x555556ad2de0) at ../monitor/hmp.c:484
  #9  0x000055555582efe8 in get_expr (mon=0x555556ad2de0, pval=0x7fffffffc418, pp=0x7fffffffc408) at ../monitor/hmp.c:511
  #10 0x000055555582fcd4 in monitor_parse_arguments (mon=0x555556ad2de0, endp=0x7fffffffc890, cmd=0x555556675b50 <hmp_cmds+7920>) at ../monitor/hmp.c:876
  #11 0x00005555558306a8 in handle_hmp_command (mon=0x555556ad2de0, cmdline=0x555556ada452 "$pc") at ../monitor/hmp.c:1087
  #12 0x000055555582df14 in monitor_command_cb (opaque=0x555556ad2de0, cmdline=0x555556ada450 "x $pc", readline_opaque=0x0) at ../monitor/hmp.c:47

After this fix, nothing is left in monitor_parse_arguments() that can
indirectly call monitor_cur(), so the fix is complete.

Fixes: ff04108a0e
Reported-by: lichun <lichun@ruijie.com.cn>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20201113114326.97663-4-kwolf@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-11-13 12:45:51 +00:00
Alistair Francis
7687537ab0 target/riscv: Split the Hypervisor execute load helpers
Split the hypervisor execute load functions into two seperate functions.
This avoids us having to pass the memop to the C helper functions.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 5b1550f0faa3c435cc77f3c1ae811dea98ab9e36.1604464950.git.alistair.francis@wdc.com
2020-11-09 15:09:00 -08:00
Alistair Francis
743077b35b target/riscv: Remove the hyp load and store functions
Remove the special Virtulisation load and store functions and just use
the standard tcg tcg_gen_qemu_ld_tl() and tcg_gen_qemu_st_tl() functions
instead.

As part of this change we ensure we still run an access check to make
sure we can perform the operations.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 189ac3e53ef2854824d18aad7074c6649f17de2c.1604464950.git.alistair.francis@wdc.com
2020-11-09 15:08:57 -08:00
Alistair Francis
1c1c060aa8 target/riscv: Remove the HS_TWO_STAGE flag
The HS_TWO_STAGE flag is no longer required as the MMU index contains
the information if we are performing a two stage access.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: f514b128b1ff0fb41c85f914cee18f905007a922.1604464950.git.alistair.francis@wdc.com
2020-11-09 15:08:53 -08:00
Alistair Francis
3e5979046f target/riscv: Set the virtualised MMU mode when doing hyp accesses
When performing the hypervisor load/store operations set the MMU mode to
indicate that we are virtualised.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: e411c61a1452cad16853f13cac2fb86dc91ebee8.1604464950.git.alistair.francis@wdc.com
2020-11-09 15:08:50 -08:00
Alistair Francis
c445593d30 target/riscv: Add a virtualised MMU Mode
Add a new MMU mode that includes the current virt mode.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 4b301bc0ea36da962fc1605371b65019ac3073df.1604464950.git.alistair.francis@wdc.com
2020-11-09 15:08:45 -08:00
Xinhao Zhang
4228197761 target/riscv/csr.c : add space before the open parenthesis '('
Fix code style. Space required before the open parenthesis '('.

Signed-off-by: Xinhao Zhang <zhangxinhao1@huawei.com>
Signed-off-by: Kai Deng <dengkai1@huawei.com>
Reported-by: Euler Robot <euler.robot@huawei.com>
Reviewed-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20201030004815.4172849-1-zhangxinhao1@huawei.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-11-03 07:17:23 -08:00
Yifei Jiang
bb02edcd86 target/riscv: Add V extension state description
In the case of supporting V extension, add V extension description
to vmstate_riscv_cpu.

Signed-off-by: Yifei Jiang <jiangyifei@huawei.com>
Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20201026115530.304-6-jiangyifei@huawei.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-11-03 07:17:23 -08:00
Yifei Jiang
35e07821ff target/riscv: Add H extension state description
In the case of supporting H extension, add H extension description
to vmstate_riscv_cpu.

Signed-off-by: Yifei Jiang <jiangyifei@huawei.com>
Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20201026115530.304-5-jiangyifei@huawei.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-11-03 07:17:23 -08:00
Yifei Jiang
24beb03e46 target/riscv: Add PMP state description
In the case of supporting PMP feature, add PMP state description
to vmstate_riscv_cpu.

'vmstate_pmp_addr' and 'num_rules' could be regenerated by
pmp_update_rule(). But there exists the problem of updating
num_rules repeatedly in pmp_update_rule(). So here extracts
pmp_update_rule_addr() and pmp_update_rule_nums() to update
'vmstate_pmp_addr' and 'num_rules' respectively.

Signed-off-by: Yifei Jiang <jiangyifei@huawei.com>
Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20201026115530.304-4-jiangyifei@huawei.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-11-03 07:17:23 -08:00
Yifei Jiang
f7697f0e62 target/riscv: Add basic vmstate description of CPU
Add basic CPU state description to the newly created machine.c

Signed-off-by: Yifei Jiang <jiangyifei@huawei.com>
Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20201026115530.304-3-jiangyifei@huawei.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-11-03 07:17:23 -08:00
Yifei Jiang
284d697c74 target/riscv: Merge m/vsstatus and m/vsstatush into one uint64_t unit
mstatus/mstatush and vsstatus/vsstatush are two halved for RISCV32.
This patch expands mstatus and vsstatus to uint64_t instead of
target_ulong so that it can be saved as one unit and reduce some
ifdefs in the code.

Signed-off-by: Yifei Jiang <jiangyifei@huawei.com>
Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20201026115530.304-2-jiangyifei@huawei.com
2020-11-03 07:17:23 -08:00
Yifei Jiang
33a9a57d2c target/riscv: raise exception to HS-mode at get_physical_address
VS-stage translation at get_physical_address needs to translate pte
address by G-stage translation. But the G-stage translation error
can not be distinguished from VS-stage translation error in
riscv_cpu_tlb_fill. On migration, destination needs to rebuild pte,
and this G-stage translation error must be handled by HS-mode. So
introduce TRANSLATE_STAGE2_FAIL so that riscv_cpu_tlb_fill could
distinguish and raise it to HS-mode.

Signed-off-by: Yifei Jiang <jiangyifei@huawei.com>
Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20201014101728.848-1-jiangyifei@huawei.com
[ Change by AF:
 - Clarify the fault_pte_addr shift
]
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-22 12:00:22 -07:00
Georg Kotheimer
1da46012ea target/riscv: Fix implementation of HLVX.WU instruction
The HLVX.WU instruction is supposed to read a machine word,
but prior to this change it read a byte instead.

Fixes: 8c5362acb5 ("target/riscv: Allow generating hlv/hlvx/hsv instructions")
Signed-off-by: Georg Kotheimer <georg.kotheimer@kernkonzept.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20201013172223.443645-1-georg.kotheimer@kernkonzept.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-22 12:00:22 -07:00
Georg Kotheimer
4aeb9e26c2 target/riscv: Fix update of hstatus.GVA in riscv_cpu_do_interrupt
The hstatus.GVA bit was not set if the faulting guest virtual address
was zero.

Signed-off-by: Georg Kotheimer <georg.kotheimer@kernkonzept.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20201013173054.451135-1-georg.kotheimer@kernkonzept.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-22 12:00:22 -07:00
Georg Kotheimer
ace544532c target/riscv: Fix update of hstatus.SPVP
When trapping from virt into HS mode, hstatus.SPVP was set to
the value of sstatus.SPP, as according to the specification both
flags should be set to the same value.
However, the assignment of SPVP takes place before SPP itself is
updated, which results in SPVP having an outdated value.

Signed-off-by: Georg Kotheimer <georg.kotheimer@kernkonzept.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20201013151054.396481-1-georg.kotheimer@kernkonzept.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-10-22 12:00:22 -07:00
Alistair Francis
69430111ab riscv: Convert interrupt logs to use qemu_log_mask()
Currently we log interrupts and exceptions using the trace backend in
riscv_cpu_do_interrupt(). We also log exceptions using the interrupt log
mask (-d int) in riscv_raise_exception().

This patch converts riscv_cpu_do_interrupt() to log both interrupts and
exceptions with the interrupt log mask, so that both are printed when a
user runs QEMU with -d int.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 29a8c766c7c4748d0f2711c3a0abb81208138c5e.1601652179.git.alistair.francis@wdc.com
2020-10-22 12:00:22 -07:00
Claudio Fontana
8191d36841 icount: rename functions to be consistent with the module name
Signed-off-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-05 16:41:22 +02:00
Claudio Fontana
740b175973 cpu-timers, icount: new modules
refactoring of cpus.c continues with cpu timer state extraction.

cpu-timers: responsible for the softmmu cpu timers state,
            including cpu clocks and ticks.

icount: counts the TCG instructions executed. As such it is specific to
the TCG accelerator. Therefore, it is built only under CONFIG_TCG.

One complication is due to qtest, which uses an icount field to warp time
as part of qtest (qtest_clock_warp).

In order to solve this problem, provide a separate counter for qtest.

This requires fixing assumptions scattered in the code that
qtest_enabled() implies icount_enabled(), checking each specific case.

Signed-off-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
[remove redundant initialization with qemu_spice_init]
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
[fix lingering calls to icount_get]
Signed-off-by: Claudio Fontana <cfontana@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-05 16:41:22 +02:00
Stefan Hajnoczi
d73415a315 qemu/atomic.h: rename atomic_ to qatomic_
clang's C11 atomic_fetch_*() functions only take a C11 atomic type
pointer argument. QEMU uses direct types (int, etc) and this causes a
compiler error when a QEMU code calls these functions in a source file
that also included <stdatomic.h> via a system header file:

  $ CC=clang CXX=clang++ ./configure ... && make
  ../util/async.c:79:17: error: address argument to atomic operation must be a pointer to _Atomic type ('unsigned int *' invalid)

Avoid using atomic_*() names in QEMU's atomic.h since that namespace is
used by <stdatomic.h>. Prefix QEMU's APIs with 'q' so that atomic.h
and <stdatomic.h> can co-exist. I checked /usr/include on my machine and
searched GitHub for existing "qatomic_" users but there seem to be none.

This patch was generated using:

  $ git grep -h -o '\<atomic\(64\)\?_[a-z0-9_]\+' include/qemu/atomic.h | \
    sort -u >/tmp/changed_identifiers
  $ for identifier in $(</tmp/changed_identifiers); do
        sed -i "s%\<$identifier\>%q$identifier%g" \
            $(git grep -I -l "\<$identifier\>")
    done

I manually fixed line-wrap issues and misaligned rST tables.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200923105646.47864-1-stefanha@redhat.com>
2020-09-23 16:07:44 +01:00
Eduardo Habkost
30b5707c26 qom: Remove module_obj_name parameter from OBJECT_DECLARE* macros
One of the goals of having less boilerplate on QOM declarations
is to avoid human error.  Requiring an extra argument that is
never used is an opportunity for mistakes.

Remove the unused argument from OBJECT_DECLARE_TYPE and
OBJECT_DECLARE_SIMPLE_TYPE.

Coccinelle patch used to convert all users of the macros:

  @@
  declarer name OBJECT_DECLARE_TYPE;
  identifier InstanceType, ClassType, lowercase, UPPERCASE;
  @@
   OBJECT_DECLARE_TYPE(InstanceType, ClassType,
  -                    lowercase,
                       UPPERCASE);

  @@
  declarer name OBJECT_DECLARE_SIMPLE_TYPE;
  identifier InstanceType, lowercase, UPPERCASE;
  @@
   OBJECT_DECLARE_SIMPLE_TYPE(InstanceType,
  -                    lowercase,
                       UPPERCASE);

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Paul Durrant <paul@xen.org>
Acked-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20200916182519.415636-4-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-18 14:12:32 -04:00
Richard Henderson
5de5b99b31 target/riscv: Set instance_align on RISCVCPU TypeInfo
Fix alignment of CPURISCVState.vreg.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200916004638.2444147-6-richard.henderson@linaro.org>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-18 13:59:51 -04:00
Peter Maydell
f00f57f344 This PR includes multiple fixes and features for RISC-V:
- Fixes a bug in printing trap causes
  - Allows 16-bit writes to the SiFive test device. This fixes the
    failure to reboot the RISC-V virt machine
  - Support for the Microchip PolarFire SoC and Icicle Kit
  - A reafactor of RISC-V code out of hw/riscv
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Merge remote-tracking branch 'remotes/alistair/tags/pull-riscv-to-apply-20200910' into staging

This PR includes multiple fixes and features for RISC-V:
 - Fixes a bug in printing trap causes
 - Allows 16-bit writes to the SiFive test device. This fixes the
   failure to reboot the RISC-V virt machine
 - Support for the Microchip PolarFire SoC and Icicle Kit
 - A reafactor of RISC-V code out of hw/riscv

# gpg: Signature made Thu 10 Sep 2020 19:08:06 BST
# gpg:                using RSA key F6C4AC46D4934868D3B8CE8F21E10D29DF977054
# gpg: Good signature from "Alistair Francis <alistair@alistair23.me>" [full]
# Primary key fingerprint: F6C4 AC46 D493 4868 D3B8  CE8F 21E1 0D29 DF97 7054

* remotes/alistair/tags/pull-riscv-to-apply-20200910: (30 commits)
  hw/riscv: Sort the Kconfig options in alphabetical order
  hw/riscv: Drop CONFIG_SIFIVE
  hw/riscv: Always build riscv_hart.c
  hw/riscv: Move sifive_test model to hw/misc
  hw/riscv: Move sifive_uart model to hw/char
  hw/riscv: Move riscv_htif model to hw/char
  hw/riscv: Move sifive_plic model to hw/intc
  hw/riscv: Move sifive_clint model to hw/intc
  hw/riscv: Move sifive_gpio model to hw/gpio
  hw/riscv: Move sifive_u_otp model to hw/misc
  hw/riscv: Move sifive_u_prci model to hw/misc
  hw/riscv: Move sifive_e_prci model to hw/misc
  hw/riscv: sifive_u: Connect a DMA controller
  hw/riscv: clint: Avoid using hard-coded timebase frequency
  hw/riscv: microchip_pfsoc: Hook GPIO controllers
  hw/riscv: microchip_pfsoc: Connect 2 Cadence GEMs
  hw/arm: xlnx: Set all boards' GEM 'phy-addr' property value to 23
  hw/net: cadence_gem: Add a new 'phy-addr' property
  hw/riscv: microchip_pfsoc: Connect a DMA controller
  hw/dma: Add SiFive platform DMA controller emulation
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

# Conflicts:
#	hw/riscv/trace-events
2020-09-13 20:29:35 +01:00
Peter Maydell
f4ef8c9cc1 QOM boilerplate cleanup
Documentation build fix:
 * memory: Remove kernel-doc comment marker (Eduardo Habkost)
 
 QOM cleanups:
 * Rename QOM macros for consistency between
   TYPE_* and type checking constants (Eduardo Habkost)
 
 QOM new macros:
 * OBJECT_DECLARE_* and OBJECT_DEFINE_* macros (Daniel P. Berrangé)
 * DECLARE_*_CHECKER macros (Eduardo Habkost)
 
 Automated QOM boilerplate changes:
 * Automated changes to use DECLARE_*_CHECKER (Eduardo Habkost
 * Automated changes to use OBJECT_DECLARE* (Eduardo Habkost)
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Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging

QOM boilerplate cleanup

Documentation build fix:
* memory: Remove kernel-doc comment marker (Eduardo Habkost)

QOM cleanups:
* Rename QOM macros for consistency between
  TYPE_* and type checking constants (Eduardo Habkost)

QOM new macros:
* OBJECT_DECLARE_* and OBJECT_DEFINE_* macros (Daniel P. Berrangé)
* DECLARE_*_CHECKER macros (Eduardo Habkost)

Automated QOM boilerplate changes:
* Automated changes to use DECLARE_*_CHECKER (Eduardo Habkost
* Automated changes to use OBJECT_DECLARE* (Eduardo Habkost)

# gpg: Signature made Thu 10 Sep 2020 19:17:49 BST
# gpg:                using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6
# gpg:                issuer "ehabkost@redhat.com"
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full]
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/machine-next-pull-request: (33 commits)
  virtio-vga: Use typedef name for instance_size
  vhost-user-vga: Use typedef name for instance_size
  xilinx_axienet: Use typedef name for instance_size
  lpc_ich9: Use typedef name for instance_size
  omap_intc: Use typedef name for instance_size
  xilinx_axidma: Use typedef name for instance_size
  tusb6010: Rename TUSB to TUSB6010
  pc87312: Rename TYPE_PC87312_SUPERIO to TYPE_PC87312
  vfio: Rename PCI_VFIO to VFIO_PCI
  usb: Rename USB_SERIAL_DEV to USB_SERIAL
  sabre: Rename SABRE_DEVICE to SABRE
  rs6000_mc: Rename RS6000MC_DEVICE to RS6000MC
  filter-rewriter: Rename FILTER_COLO_REWRITER to FILTER_REWRITER
  esp: Rename ESP_STATE to ESP
  ahci: Rename ICH_AHCI to ICH9_AHCI
  vmgenid: Rename VMGENID_DEVICE to TYPE_VMGENID
  vfio: Rename VFIO_AP_DEVICE_TYPE to TYPE_VFIO_AP_DEVICE
  dev-smartcard-reader: Rename CCID_DEV_NAME to TYPE_USB_CCID_DEV
  ap-device: Rename AP_DEVICE_TYPE to TYPE_AP_DEVICE
  gpex: Fix type checking function name
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-09-11 19:26:51 +01:00
Bin Meng
a47ef6e93a hw/riscv: clint: Avoid using hard-coded timebase frequency
At present the CLINT timestamp is using a hard-coded timebase
frequency value SIFIVE_CLINT_TIMEBASE_FREQ. This might not be
true for all boards.

Add a new 'timebase-freq' property to the CLINT device, and
update various functions to accept this as a parameter.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <1598924352-89526-16-git-send-email-bmeng.cn@gmail.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-09-09 15:54:19 -07:00
Bin Meng
73f6ed97ac target/riscv: cpu: Set reset vector based on the configured property value
Now that we have the newly introduced 'resetvec' property in the
RISC-V CPU and HART, instead of hard-coding the reset vector addr
in the CPU's instance_init(), move that to riscv_cpu_realize()
based on the configured property value from the RISC-V machines.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <1598924352-89526-4-git-send-email-bmeng.cn@gmail.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-09-09 15:54:18 -07:00
Bin Meng
9b4c9b2b2a target/riscv: cpu: Add a new 'resetvec' property
Currently the reset vector address is hard-coded in a RISC-V CPU's
instance_init() routine. In a real world we can have 2 exact same
CPUs except for the reset vector address, which is pretty common in
the RISC-V core IP licensing business.

Normally reset vector address is a configurable parameter. Let's
create a 64-bit property to store the reset vector address which
covers both 32-bit and 64-bit CPUs.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <1598924352-89526-2-git-send-email-bmeng.cn@gmail.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-09-09 15:54:18 -07:00
Yifei Jiang
c51a3f5d15 target/riscv: Fix bug in getting trap cause name for trace_riscv_trap
When the cause number is equal to or greater than 23, print "(unknown)" in
trace_riscv_trap. The max valid number of riscv_excp_names is 23, so the last
excpetion "guest_store_page_fault" can not be printed.

In addition, the current check of cause is invalid for riscv_intr_names. So
introduce riscv_cpu_get_trap_name to get the trap cause name.

Signed-off-by: Yifei Jiang <jiangyifei@huawei.com>
Signed-off-by: Yipeng Yin <yinyipeng1@huawei.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200814035819.1214-1-jiangyifei@huawei.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-09-09 15:54:18 -07:00
Markus Armbruster
b15e402fc8 trace-events: Fix attribution of trace points to source
Some trace points are attributed to the wrong source file.  Happens
when we neglect to update trace-events for code motion, or add events
in the wrong place, or misspell the file name.

Clean up with help of scripts/cleanup-trace-events.pl.  Funnies
requiring manual post-processing:

* accel/tcg/cputlb.c trace points are in trace-events.

* block.c and blockdev.c trace points are in block/trace-events.

* hw/block/nvme.c uses the preprocessor to hide its trace point use
  from cleanup-trace-events.pl.

* hw/tpm/tpm_spapr.c uses pseudo trace point tpm_spapr_show_buffer to
  guard debug code.

* include/hw/xen/xen_common.h trace points are in hw/xen/trace-events.

* linux-user/trace-events abbreviates a tedious list of filenames to
  */signal.c.

* net/colo-compare and net/filter-rewriter.c use pseudo trace points
  colo_compare_miscompare and colo_filter_rewriter_debug to guard
  debug code.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200806141334.3646302-5-armbru@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-09-09 17:17:58 +01:00
Eduardo Habkost
c821774a3b Use OBJECT_DECLARE_TYPE where possible
Replace DECLARE_OBJ_CHECKERS with OBJECT_DECLARE_TYPE where the
typedefs can be safely removed.

Generated running:

$ ./scripts/codeconverter/converter.py -i \
  --pattern=DeclareObjCheckers $(git grep -l '' -- '*.[ch]')

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20200831210740.126168-16-ehabkost@redhat.com>
Message-Id: <20200831210740.126168-17-ehabkost@redhat.com>
Message-Id: <20200831210740.126168-18-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-09 09:27:11 -04:00
Eduardo Habkost
8110fa1d94 Use DECLARE_*CHECKER* macros
Generated using:

 $ ./scripts/codeconverter/converter.py -i \
   --pattern=TypeCheckMacro $(git grep -l '' -- '*.[ch]')

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200831210740.126168-12-ehabkost@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200831210740.126168-13-ehabkost@redhat.com>
Message-Id: <20200831210740.126168-14-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-09 09:27:09 -04:00
Eduardo Habkost
db1015e92e Move QOM typedefs and add missing includes
Some typedefs and macros are defined after the type check macros.
This makes it difficult to automatically replace their
definitions with OBJECT_DECLARE_TYPE.

Patch generated using:

 $ ./scripts/codeconverter/converter.py -i \
   --pattern=QOMStructTypedefSplit $(git grep -l '' -- '*.[ch]')

which will split "typdef struct { ... } TypedefName"
declarations.

Followed by:

 $ ./scripts/codeconverter/converter.py -i --pattern=MoveSymbols \
    $(git grep -l '' -- '*.[ch]')

which will:
- move the typedefs and #defines above the type check macros
- add missing #include "qom/object.h" lines if necessary

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200831210740.126168-9-ehabkost@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20200831210740.126168-10-ehabkost@redhat.com>
Message-Id: <20200831210740.126168-11-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-09 09:26:43 -04:00
Kito Cheng
dd205025a0 softfloat: Implement the full set of comparisons for float16
Implement them in softfloat and remove the local versions in riscv.

Signed-off-by: Kito Cheng <kito.cheng@sifive.com>
Signed-off-by: Chih-Min Chao <chihmin.chao@sifive.com>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <1596102747-20226-2-git-send-email-chihmin.chao@sifive.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2020-08-28 10:48:07 -07:00
Alistair Francis
e39a8320b0 target/riscv: Support the Virtual Instruction fault
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 4c744dce9b0b057cbb5cc0f4d4ac75cda682a8af.1597259519.git.alistair.francis@wdc.com
Message-Id: <4c744dce9b0b057cbb5cc0f4d4ac75cda682a8af.1597259519.git.alistair.francis@wdc.com>
2020-08-25 09:11:36 -07:00
Alistair Francis
57cb2083e6 target/riscv: Return the exception from invalid CSR accesses
When performing a CSR access let's return a negative exception value on
an error instead of -1. This will allow us to specify the exception in
future patches.

Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: a487dad60c9b8fe7a2b992c5e0dcc2504a9000a7.1597259519.git.alistair.francis@wdc.com
Message-Id: <a487dad60c9b8fe7a2b992c5e0dcc2504a9000a7.1597259519.git.alistair.francis@wdc.com>
2020-08-25 09:11:36 -07:00
Alistair Francis
83028098f4 target/riscv: Support the v0.6 Hypervisor extension CRSs
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 644b6c114b1a81adbee0ab8c9c66a8672059ec96.1597259519.git.alistair.francis@wdc.com
Message-Id: <644b6c114b1a81adbee0ab8c9c66a8672059ec96.1597259519.git.alistair.francis@wdc.com>
2020-08-25 09:11:36 -07:00
Alistair Francis
30f663b16f target/riscv: Only support little endian guests
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 93e5d4f13eca0d2a588e407187f33c6437aeaaf9.1597259519.git.alistair.francis@wdc.com
Message-Id: <93e5d4f13eca0d2a588e407187f33c6437aeaaf9.1597259519.git.alistair.francis@wdc.com>
2020-08-25 09:11:36 -07:00
Alistair Francis
f8dc878efc target/riscv: Only support a single VSXL length
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: f3f4fd2ec22a07cc1d750e96895d6813f131de4d.1597259519.git.alistair.francis@wdc.com
Message-Id: <f3f4fd2ec22a07cc1d750e96895d6813f131de4d.1597259519.git.alistair.francis@wdc.com>
2020-08-25 09:11:36 -07:00
Alistair Francis
543ba53157 target/riscv: Update the CSRs to the v0.6 Hyp extension
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 4f227b30cb1816795296c0994f1123fab143666a.1597259519.git.alistair.francis@wdc.com
Message-Id: <4f227b30cb1816795296c0994f1123fab143666a.1597259519.git.alistair.francis@wdc.com>
2020-08-25 09:11:36 -07:00
Alistair Francis
f2d5850f71 target/riscv: Update the Hypervisor trap return/entry
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: e7e4e801234f2934306e734f65860f601a5745bd.1597259519.git.alistair.francis@wdc.com
Message-Id: <e7e4e801234f2934306e734f65860f601a5745bd.1597259519.git.alistair.francis@wdc.com>
2020-08-25 09:11:36 -07:00
Alistair Francis
84b1c04bba target/riscv: Fix the interrupt cause code
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 85b7fdba8abd87adb83275cdc3043ce35a1ed5c3.1597259519.git.alistair.francis@wdc.com
Message-Id: <85b7fdba8abd87adb83275cdc3043ce35a1ed5c3.1597259519.git.alistair.francis@wdc.com>
2020-08-25 09:11:36 -07:00
Alistair Francis
9034e90ad9 target/riscv: Convert MSTATUS MTL to GVA
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 9308432988946de550a68524ed76e4b8683f10e2.1597259519.git.alistair.francis@wdc.com
Message-Id: <9308432988946de550a68524ed76e4b8683f10e2.1597259519.git.alistair.francis@wdc.com>
2020-08-25 09:11:36 -07:00
Alistair Francis
e2eb5ca8f6 target/riscv: Don't allow guest to write to htinst
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: ca5359fec6b2aff851eef3b3bc4b53cb5d4ad194.1597259519.git.alistair.francis@wdc.com
Message-Id: <ca5359fec6b2aff851eef3b3bc4b53cb5d4ad194.1597259519.git.alistair.francis@wdc.com>
2020-08-25 09:11:36 -07:00
Alistair Francis
29b3361b14 target/riscv: Do two-stage lookups on hlv/hlvx/hsv instructions
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 024ad8a594fb2feaf0950fbfad1508cfa82ce7f0.1597259519.git.alistair.francis@wdc.com
Message-Id: <024ad8a594fb2feaf0950fbfad1508cfa82ce7f0.1597259519.git.alistair.francis@wdc.com>
2020-08-25 09:11:35 -07:00
Alistair Francis
8c5362acb5 target/riscv: Allow generating hlv/hlvx/hsv instructions
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 477c864312280ea55a98dc84cb01d826751b6c14.1597259519.git.alistair.francis@wdc.com
Message-Id: <477c864312280ea55a98dc84cb01d826751b6c14.1597259519.git.alistair.francis@wdc.com>
2020-08-25 09:11:35 -07:00
Alistair Francis
5a894dd770 target/riscv: Allow setting a two-stage lookup in the virt status
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 08cdefb171b1bdb0c9e3151c509aaadefc3dcd3e.1597259519.git.alistair.francis@wdc.com
Message-Id: <08cdefb171b1bdb0c9e3151c509aaadefc3dcd3e.1597259519.git.alistair.francis@wdc.com>
2020-08-25 09:11:35 -07:00
Zong Li
af3fc195e3 target/riscv: Change the TLB page size depends on PMP entries.
The minimum granularity of PMP is 4 bytes, it is small than 4KB page
size, therefore, the pmp checking would be ignored if its range doesn't
start from the alignment of one page. This patch detects the pmp entries
and sets the small page size to TLB if there is a PMP entry which cover
the page size.

Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <6b0bf48662ef26ab4c15381a08e78a74ebd7ca79.1595924470.git.zong.li@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-08-21 22:37:55 -07:00
Zong Li
9ef82119b1 target/riscv: Fix the translation of physical address
The real physical address should add the 12 bits page offset. It also
causes the PMP wrong checking due to the minimum granularity of PMP is
4 byte, but we always get the physical address which is 4KB alignment,
that means, we always use the start address of the page to check PMP for
all addresses which in the same page.

Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <370a983d0f9e8a9a927b9bb8af5e7bc84b1bf9b1.1595924470.git.zong.li@sifive.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-08-21 22:37:55 -07:00
Hou Weiying
fdd33b86b2 riscv: Fix bug in setting pmpcfg CSR for RISCV64
First, sizeof(target_ulong) equals to 4 on riscv32, so this change
does not change the function on riscv32. Second, sizeof(target_ulong)
equals to 8 on riscv64, and 'reg_index * 8 + i' is not a legal
pmp_index (we will explain later), which should be 'reg_index * 4 + i'.

If the parameter reg_index equals to 2 (means that we will change the
value of pmpcfg2, or the second pmpcfg on riscv64), then
pmpcfg_csr_write(env, 2, val) will map write tasks to
pmp_write_cfg(env, 2 * 8 + [0...7], val). However, no cfg csr is indexed
by value 16 or 23 on riscv64, so we consider it as a bug.

We are looking for constant (e.g., define a new constant named
RISCV_WORD_SIZE) in QEMU to help others understand code better,
but none was found. A possible good explanation of this literal is it is
the minimum word length on riscv is 4 bytes (32 bit).

Signed-off-by: Hongzheng-Li <Ethan.Lee.QNL@gmail.com>
Signed-off-by: Hou Weiying <weiying_hou@outlook.com>
Signed-off-by: Myriad-Dreamin <camiyoru@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <SG2PR02MB263420036254AC8841F66CE393460@SG2PR02MB2634.apcprd02.prod.outlook.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-08-21 22:37:55 -07:00
LIU Zhiwei
ec80f87459 target/riscv: check before allocating TCG temps
Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200626205917.4545-5-zhiwei_liu@c-sky.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200724002807.441147-8-richard.henderson@linaro.org>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
2020-08-21 22:37:55 -07:00