Commit Graph

307 Commits

Author SHA1 Message Date
Bibo Mao
f83434f3dc target/loongarch: Add loongarch vector property unconditionally
Currently LSX/LASX vector property is decided by the default value.
Instead vector property should be added unconditionally, and it is
irrelative with its default value. If vector is disabled by default,
vector also can be enabled from command line.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240521080549.434197-2-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2024-05-23 09:30:41 +08:00
Song Gao
07c0866103 target/loongarch/kvm: fpu save the vreg registers high 192bit
On kvm side, get_fpu/set_fpu save the vreg registers high 192bits,
but QEMU missing.

Cc: qemu-stable@nongnu.org
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Message-Id: <20240514110752.989572-1-gaosong@loongson.cn>
2024-05-23 09:30:41 +08:00
Song Gao
0eb285c362 target/loongarch/kvm: Fix VM recovery from disk failures
vmstate does not save kvm_state_conter,
which can cause VM recovery from disk to fail.

Cc: qemu-stable@nongnu.org
Signed-off-by: Song Gao <gaosong@loongson.cn>
Acked-by: Peter Xu <peterx@redhat.com>
Message-Id: <20240508024732.3127792-1-gaosong@loongson.cn>
2024-05-23 09:30:41 +08:00
Richard Henderson
962a145cdc accel/tcg: Provide default implementation of disas_log
Almost all of the disas_log implementations are identical.
Unify them within translator_loop.

Drop extra Priv/Virt logging from target/riscv.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-05-15 08:55:18 +02:00
Bibo Mao
5872966db7 target/loongarch: Put cpucfg operation before CSR register
On Loongarch, cpucfg is register for cpu feature, some other registers
depend on cpucfg feature such as perf CSR registers. Here put cpucfg
read/write operations before CSR register, so that KVM knows how many
perf CSR registers are valid from pre-set cpucfg feature information.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240428031651.1354587-1-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2024-05-09 15:19:22 +08:00
Bibo Mao
6f703a4841 target/loongarch: Add TCG macro in structure CPUArchState
In structure CPUArchState some struct elements are only used in TCG
mode, and it is not used in KVM mode. Macro CONFIG_TCG is added to
make it simpiler in KVM mode, also there is the same modification
in c code when these structure elements are used.

When VM runs in KVM mode, TLB entries are not used and do not need
migrate. It is only useful when it runs in TCG mode.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240506011912.2108842-1-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2024-05-09 15:18:48 +08:00
Philippe Mathieu-Daudé
b254c342cf accel/tcg: Access tcg_cflags with getter / setter
Access the CPUState::tcg_cflags via tcg_cflags_has() and
tcg_cflags_set() helpers.

Mechanical change using the following Coccinelle spatch script:

  @@
  expression cpu;
  expression flags;
  @@
  -     cpu->tcg_cflags & flags
  +     tcg_cflags_has(cpu, flags)

  @@
  expression cpu;
  expression flags;
  @@
  -     (tcg_cflags_has(cpu, flags))
  +     tcg_cflags_has(cpu, flags)

  @@
  expression cpu;
  expression flags;
  @@
  -     cpu->tcg_cflags |= flags;
  +     tcg_cflags_set(cpu, flags);

Then manually moving the declarations, and adding both
tcg_cflags_has() and tcg_cflags_set() definitions.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240427155714.53669-15-philmd@linaro.org>
2024-05-06 11:21:05 +02:00
Philippe Mathieu-Daudé
74781c0888 exec/cpu: Extract page-protection definitions to page-protection.h
Extract page-protection definitions from "exec/cpu-all.h"
to "exec/page-protection.h".

The list of files requiring the new header was generated
using:

$ git grep -wE \
  'PAGE_(READ|WRITE|EXEC|RWX|VALID|ANON|RESERVED|TARGET_.|PASSTHROUGH)'

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Nicholas Piggin <npiggin@gmail.com>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240427155714.53669-3-philmd@linaro.org>
2024-05-06 11:17:15 +02:00
Richard Henderson
de7e907d01 Add boot LoongArch elf kernel with FDT
v2: Fix 'make check-tcg' fail.
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Merge tag 'pull-loongarch-20240429' of https://gitlab.com/gaosong/qemu into staging

Add boot LoongArch elf kernel with FDT

v2: Fix 'make check-tcg' fail.

# -----BEGIN PGP SIGNATURE-----
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# gpg: Signature made Sun 28 Apr 2024 07:28:44 PM PDT
# gpg:                using RSA key B8FF1DA0D2FDCB2DA09C6C2C40A2FFF239263EDF
# gpg: Good signature from "Song Gao <m17746591750@163.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: B8FF 1DA0 D2FD CB2D A09C  6C2C 40A2 FFF2 3926 3EDF

* tag 'pull-loongarch-20240429' of https://gitlab.com/gaosong/qemu:
  hw/loongarch: Add cells missing from rtc node
  hw/loongarch: Add cells missing from uart node
  hw/loongarch: fdt remove unused irqchip node
  hw/loongarch: fdt adds pcie irq_map node
  hw/loongarch: fdt adds pch_msi Controller
  hw/loongarch: fdt adds pch_pic Controller
  hw/loongarch: fdt adds Extend I/O Interrupt Controller
  hw/loongarch: fdt adds cpu interrupt controller node
  hw/loongarch: Fix fdt memory node wrong 'reg'
  hw/loongarch: Init efi_fdt table
  hw/loongarch: Init efi_initrd table
  hw/loongarch: Init efi_boot_memmap table
  hw/loongarch: Init efi_system_table
  hw/loongarch: Add init_cmdline
  hw/loongarch: Add slave cpu boot_code
  hw/loongarch: Add load initrd
  hw/loongarch: Move boot functions to boot.c

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-30 07:16:56 -07:00
Michael Tokarev
0cbb322f70 target/loongarch/cpu.c: typo fix: expection
Fixes: 1590154ee4 ("target/loongarch: Fix qemu-system-loongarch64 assert failed with the option '-d int'")
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2024-04-29 15:26:56 +03:00
Song Gao
58ee60d2d2 hw/loongarch: Add init_cmdline
Add init_cmline and set boot_info->a0, a1

Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Message-Id: <20240426091551.2397867-5-gaosong@loongson.cn>
2024-04-29 10:25:56 +08:00
Philippe Mathieu-Daudé
e92dd33224 target: Define TCG_GUEST_DEFAULT_MO in 'cpu-param.h'
accel/tcg/ files requires the following definitions:

  - TARGET_LONG_BITS
  - TARGET_PAGE_BITS
  - TARGET_PHYS_ADDR_SPACE_BITS
  - TCG_GUEST_DEFAULT_MO

The first 3 are defined in "cpu-param.h". The last one
in "cpu.h", with a bunch of definitions irrelevant for
TCG. By moving the TCG_GUEST_DEFAULT_MO definition to
"cpu-param.h", we can simplify various accel/tcg includes.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Nicholas Piggin <npiggin@gmail.com>
Message-Id: <20231211212003.21686-4-philmd@linaro.org>
2024-04-26 15:31:37 +02:00
Peter Maydell
ad80e36744 hw, target: Add ResetType argument to hold and exit phase methods
We pass a ResetType argument to the Resettable class enter
phase method, but we don't pass it to hold and exit, even though
the callsites have it readily available. This means that if
a device cared about the ResetType it would need to record it
in the enter phase method to use later on. Pass the type to
all three of the phase methods to avoid having to do that.

Commit created with

  for dir in hw target include; do \
      spatch --macro-file scripts/cocci-macro-file.h \
             --sp-file scripts/coccinelle/reset-type.cocci \
             --keep-comments --smpl-spacing --in-place \
             --include-headers --dir $dir; done

and no manual edits.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@amd.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Luc Michel <luc.michel@amd.com>
Message-id: 20240412160809.1260625-5-peter.maydell@linaro.org
2024-04-25 10:21:06 +01:00
Paolo Bonzini
a99c0c66eb KVM: remove kvm_arch_cpu_check_are_resettable
Board reset requires writing a fresh CPU state.  As far as KVM is
concerned, the only thing that blocks reset is that CPU state is
encrypted; therefore, kvm_cpus_are_resettable() can simply check
if that is the case.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-04-23 17:35:25 +02:00
Song Gao
1590154ee4 target/loongarch: Fix qemu-system-loongarch64 assert failed with the option '-d int'
qemu-system-loongarch64 assert failed with the option '-d int',
the helper_idle() raise an exception EXCP_HLT, but the exception name is undefined.

Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240321123606.1704900-1-gaosong@loongson.cn>
2024-03-22 17:57:49 +08:00
Song Gao
77642f92c0 target/loongarch: Fix qemu-loongarch64 hang when executing 'll.d $t0, $t0, 0'
On gen_ll, if a->imm is zero, make_address_x return src1,
but the load to destination may clobber src1. We use a new
destination to fix this problem.

Fixes: c5af6628f4 (target/loongarch: Extract make_address_i() helper)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240320013955.1561311-1-gaosong@loongson.cn>
2024-03-20 10:20:08 +08:00
Xianglai Li
9c70db9a43 target/loongarch: Fix tlb huge page loading issue
When we use qemu tcg simulation, the page size of bios is 4KB.
When using the level 2 super huge page (page size is 1G) to create the page table,
it is found that the content of the corresponding address space is abnormal,
resulting in the bios can not start the operating system and graphical interface normally.

The lddir and ldpte instruction emulation has
a problem with the use of super huge page processing above level 2.
The page size is not correctly calculated,
resulting in the wrong page size of the table entry found by tlb.

Signed-off-by: Xianglai Li <lixianglai@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240318070332.1273939-1-lixianglai@loongson.cn>
2024-03-20 10:20:03 +08:00
Peter Maydell
441e0eefab Error reporting patches for 2024-03-12
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Merge tag 'pull-error-2024-03-12' of https://repo.or.cz/qemu/armbru into staging

Error reporting patches for 2024-03-12

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# gpg: Signature made Tue 12 Mar 2024 13:30:14 GMT
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* tag 'pull-error-2024-03-12' of https://repo.or.cz/qemu/armbru:
  target/loongarch: Fix query-cpu-model-expansion to reject props
  target: Improve error reporting for CpuModelInfo member @props
  target/i386: Fix query-cpu-model-expansion to reject props
  target: Simplify type checks for CpuModelInfo member @props

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-12 16:55:56 +00:00
Peter Maydell
e692f9c6a6 * Add missing ERRP_GUARD() statements in functions that need it
* Prefer fast cpu_env() over slower CPU QOM cast macro
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Merge tag 'pull-request-2024-03-12' of https://gitlab.com/thuth/qemu into staging

* Add missing ERRP_GUARD() statements in functions that need it
* Prefer fast cpu_env() over slower CPU QOM cast macro

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# -----END PGP SIGNATURE-----
# gpg: Signature made Tue 12 Mar 2024 11:35:50 GMT
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* tag 'pull-request-2024-03-12' of https://gitlab.com/thuth/qemu: (55 commits)
  user: Prefer fast cpu_env() over slower CPU QOM cast macro
  target/xtensa: Prefer fast cpu_env() over slower CPU QOM cast macro
  target/tricore: Prefer fast cpu_env() over slower CPU QOM cast macro
  target/sparc: Prefer fast cpu_env() over slower CPU QOM cast macro
  target/sh4: Prefer fast cpu_env() over slower CPU QOM cast macro
  target/rx: Prefer fast cpu_env() over slower CPU QOM cast macro
  target/ppc: Prefer fast cpu_env() over slower CPU QOM cast macro
  target/openrisc: Prefer fast cpu_env() over slower CPU QOM cast macro
  target/nios2: Prefer fast cpu_env() over slower CPU QOM cast macro
  target/mips: Prefer fast cpu_env() over slower CPU QOM cast macro
  target/microblaze: Prefer fast cpu_env() over slower CPU QOM cast macro
  target/m68k: Prefer fast cpu_env() over slower CPU QOM cast macro
  target/loongarch: Prefer fast cpu_env() over slower CPU QOM cast macro
  target/i386/hvf: Use CPUState typedef
  target/hexagon: Prefer fast cpu_env() over slower CPU QOM cast macro
  target/cris: Prefer fast cpu_env() over slower CPU QOM cast macro
  target/avr: Prefer fast cpu_env() over slower CPU QOM cast macro
  target/alpha: Prefer fast cpu_env() over slower CPU QOM cast macro
  target: Replace CPU_GET_CLASS(cpu -> obj) in cpu_reset_hold() handler
  bulk: Call in place single use cpu_env()
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-03-12 16:55:42 +00:00
Markus Armbruster
2805440671 target/loongarch: Fix query-cpu-model-expansion to reject props
query-cpu-model-expansion takes a CpuModelInfo argument.  The
loongarch version of the command silently ignores the argument's
member @props.  For instance,

    {"execute": "query-cpu-model-expansion", "arguments": {"type": "static", "model": {"name": "la464", "props": null}}}

and

    {"execute": "query-cpu-model-expansion", "arguments": {"type": "static", "model": {"name": "la464", "props": {"prop": null}}}}

succeed.

Add skeleton code for property processing that recognizes no
properties.  Now the two commands fail as they should:

    {"error": {"class": "GenericError", "desc": "Invalid parameter type for 'model.props', expected: object"}}

and

    {"error": {"class": "GenericError", "desc": "Parameter 'model.props.prop' is unexpected"}}

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20240305145919.2186971-5-armbru@redhat.com>
[Drop #include now superfluous]
2024-03-12 14:03:37 +01:00
Philippe Mathieu-Daudé
f3b603b95e target/loongarch: Prefer fast cpu_env() over slower CPU QOM cast macro
Mechanical patch produced running the command documented
in scripts/coccinelle/cpu_env.cocci_template header.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20240129164514.73104-16-philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
[thuth: Adjusted patch for hunk that moved to cpu_helper.c]
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-03-12 12:04:24 +01:00
Philippe Mathieu-Daudé
348802b526 target: Replace CPU_GET_CLASS(cpu -> obj) in cpu_reset_hold() handler
Since CPU() macro is a simple cast, the following are equivalent:

  Object *obj;
  CPUState *cs = CPU(obj)

In order to ease static analysis when running
scripts/coccinelle/cpu_env.cocci from the previous commit,
replace:

 - CPU_GET_CLASS(cpu);
 + CPU_GET_CLASS(obj);

Most code use the 'cs' variable name for CPUState handle.
Replace few 's' -> 'cs' to unify cpu_reset_hold() style.

No logical change in this patch.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240129164514.73104-7-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-03-12 11:46:16 +01:00
Philippe Mathieu-Daudé
94956d7b51 bulk: Call in place single use cpu_env()
Avoid CPUArchState local variable when cpu_env() is used once.

Mechanical patch using the following Coccinelle spatch script:

 @@
 type CPUArchState;
 identifier env;
 expression cs;
 @@
  {
 -    CPUArchState *env = cpu_env(cs);
      ... when != env
 -     env
 +     cpu_env(cs)
      ... when != env
  }

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20240129164514.73104-5-philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-03-12 11:46:16 +01:00
Steve Sistare
f853fa0714 migration: remove migration.h references
Remove migration.h from files that no longer need it due to
previous commits.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Link: https://lore.kernel.org/r/1710179338-294359-2-git-send-email-steven.sistare@oracle.com
Signed-off-by: Peter Xu <peterx@redhat.com>
2024-03-11 16:28:59 -04:00
Alex Bennée
f6e0eabdb4 target/loongarch: honour show_opcodes when disassembling
This makes the output suitable when used for plugins.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240305121005.3528075-29-alex.bennee@linaro.org>
2024-03-06 12:35:51 +00:00
Akihiko Odaki
ecd6f6a882 gdbstub: Infer number of core registers from XML
GDBFeature has the num_regs member so use it where applicable to
remove magic numbers.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20231213-gdb-v17-8-777047380591@daynix.com>
[AJB: remove core reg check from microblaze read reg]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240227144335.1196131-13-alex.bennee@linaro.org>
2024-02-28 09:09:58 +00:00
Akihiko Odaki
66260159a7 gdbstub: Change gdb_get_reg_cb and gdb_set_reg_cb
Align the parameters of gdb_get_reg_cb and gdb_set_reg_cb with the
gdb_read_register and gdb_write_register members of CPUClass to allow
to unify the logic to access registers of the core and coprocessors
in the future.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231213-gdb-v17-6-777047380591@daynix.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240227144335.1196131-11-alex.bennee@linaro.org>
2024-02-28 09:09:49 +00:00
Akihiko Odaki
ac1e867100 gdbstub: Use GDBFeature for gdb_register_coprocessor
This is a tree-wide change to introduce GDBFeature parameter to
gdb_register_coprocessor(). The new parameter just replaces num_regs
and xml parameters for now. GDBFeature will be utilized to simplify XML
lookup in a following change.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20231213-gdb-v17-4-777047380591@daynix.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240227144335.1196131-9-alex.bennee@linaro.org>
2024-02-28 09:09:34 +00:00
Richard Henderson
3b91614004 include/exec: Change cpu_mmu_index argument to CPUState
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-02-03 16:46:10 +10:00
Richard Henderson
a120d32097 include/exec: Implement cpu_mmu_index generically
For user-only mode, use MMU_USER_IDX.
For system mode, use CPUClass.mmu_index.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-02-03 16:46:10 +10:00
Richard Henderson
3f262d2568 target/loongarch: Rename MMU_IDX_*
The expected form is MMU_FOO_IDX, not MMU_IDX_FOO.
Rename to match generic code.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-02-03 16:46:07 +10:00
Richard Henderson
a72a1b105d target/loongarch: Populate CPUClass.mmu_index
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-02-03 16:46:04 +10:00
Song Gao
27edd5040c target/loongarch: Fix qtest test-hmp error when KVM-only build
The cc->sysemu_ops->get_phys_page_debug() is NULL when
KVM-only build. this patch fixes it.

Signed-off-by: Song Gao <gaosong@loongson.cn>
Tested-by: Bibo Mao <maobibo@loongson.cn>
Message-Id: <20240125061401.52526-1-gaosong@loongson.cn>
2024-02-01 15:29:40 +08:00
Richard Henderson
2889fb8bd2 target/loongarch: Constify loongarch_tcg_ops
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-01-29 21:04:10 +10:00
Richard Henderson
1764ad70ce include/qemu: Add TCGCPUOps typedef to typedefs.h
QEMU coding style recommends using structure typedefs.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-01-29 21:04:10 +10:00
Anton Johansson
32f0c394bb target: Use vaddr in gen_intermediate_code
Makes gen_intermediate_code() signature target agnostic so the function
can be called from accel/tcg/translate-all.c without target specifics.

Signed-off-by: Anton Johansson <anjo@rev.ng>
Message-Id: <20240119144024.14289-9-anjo@rev.ng>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2024-01-29 07:06:03 +10:00
Song Gao
fc70099621 target/loongarch/kvm: Enable LSX/LASX extension
The kernel had already support LSX and LASX [1],
but QEMU is disable LSX/LASX for kvm. This patch adds
kvm_check_cpucfg2() to check CPUCFG2.

[1]: https://lore.kernel.org/all/CABgObfZHRf7E_7Jk4uPRmSyxTy3EiuuYwHC35jQncNL9s-zTDA@mail.gmail.com/

Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Message-Id: <20240122090206.1083584-1-gaosong@loongson.cn>
2024-01-25 15:25:31 +08:00
Bibo Mao
61f6e1509d target/loongarch: Set cpuid CSR register only once with kvm mode
CSR cpuid register is used for routing irq to different vcpus, its
value is kept unchanged since poweron. So it is not necessary to
set CSR cpuid register after system resets, and it is only set at
vm creation stage.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240115085121.180524-1-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2024-01-25 15:25:03 +08:00
Bibo Mao
5e90b8db38 hw/loongarch/virt: Set iocsr address space per-board rather than percpu
LoongArch system has iocsr address space, most iocsr registers are
per-board, however some iocsr register spaces banked for percpu such
as ipi mailbox and extioi interrupt status. For banked iocsr space,
each cpu has the same iocsr space, but separate data.

This patch changes iocsr address space per-board rather percpu,
for iocsr registers specified for cpu, MemTxAttrs.requester_id
can be parsed for the cpu. With this patches, the total address space
on board will be simple, only iocsr address space and system memory,
rather than the number of cpu and system memory.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20231215100333.3933632-3-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2024-01-11 19:22:47 +08:00
Tianrui Zhao
714b03c125 target/loongarch: Add loongarch kvm into meson build
Add kvm.c into meson.build to compile it when kvm
is configed. Meanwhile in meson.build, we set the
kvm_targets to loongarch64-softmmu when the cpu is
loongarch. And fix the compiling error when config
is enable-kvm,disable-tcg.

Signed-off-by: Tianrui Zhao <zhaotianrui@loongson.cn>
Signed-off-by: xianglai li <lixianglai@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240105075804.1228596-10-zhaotianrui@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2024-01-11 19:22:47 +08:00
Tianrui Zhao
8dcbad5128 target/loongarch: Implement set vcpu intr for kvm
Implement loongarch kvm set vcpu interrupt interface,
when a irq is set in vcpu, we use the KVM_INTERRUPT
ioctl to set intr into kvm.

Signed-off-by: Tianrui Zhao <zhaotianrui@loongson.cn>
Signed-off-by: xianglai li <lixianglai@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-ID: <20240105075804.1228596-9-zhaotianrui@loongson.cn>
[PMD: Split from bigger patch, part 2]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240110094152.52138-2-philmd@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2024-01-11 19:22:32 +08:00
Tianrui Zhao
2d45085a72 target/loongarch: Restrict TCG-specific code
In preparation of supporting KVM in the next commit.

Signed-off-by: Tianrui Zhao <zhaotianrui@loongson.cn>
Signed-off-by: xianglai li <lixianglai@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-ID: <20240105075804.1228596-9-zhaotianrui@loongson.cn>
[PMD: Split from bigger patch, part 1]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20240110094152.52138-1-philmd@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2024-01-11 19:21:45 +08:00
Tianrui Zhao
a05a950f2f target/loongarch: Implement kvm_arch_handle_exit
Implement kvm_arch_handle_exit for loongarch. In this
function, the KVM_EXIT_LOONGARCH_IOCSR is handled,
we read or write the iocsr address space by the addr,
length and is_write argument in kvm_run.

Signed-off-by: Tianrui Zhao <zhaotianrui@loongson.cn>
Signed-off-by: xianglai li <lixianglai@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240105075804.1228596-8-zhaotianrui@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2024-01-11 19:14:00 +08:00
Tianrui Zhao
d11681c94f target/loongarch: Implement kvm_arch_init_vcpu
Implement kvm_arch_init_vcpu interface for loongarch,
in this function, we register VM change state handler.
And when VM state changes to running, the counter value
should be put into kvm to keep consistent with kvm,
and when state change to stop, counter value should be
refreshed from kvm.

Signed-off-by: Tianrui Zhao <zhaotianrui@loongson.cn>
Signed-off-by: xianglai li <lixianglai@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240105075804.1228596-7-zhaotianrui@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2024-01-11 19:14:00 +08:00
Tianrui Zhao
41958c99e5 target/loongarch: Implement kvm_arch_init function
Implement the kvm_arch_init of loongarch, in the function, the
KVM_CAP_MP_STATE cap is checked by kvm ioctl.

Signed-off-by: Tianrui Zhao <zhaotianrui@loongson.cn>
Signed-off-by: xianglai li <lixianglai@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240105075804.1228596-6-zhaotianrui@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2024-01-11 19:14:00 +08:00
Tianrui Zhao
f8447436d3 target/loongarch: Implement kvm get/set registers
Implement kvm_arch_get/set_registers interfaces, many regs
can be get/set in the function, such as core regs, csr regs,
fpu regs, mp state, etc.

Signed-off-by: Tianrui Zhao <zhaotianrui@loongson.cn>
Signed-off-by: xianglai li <lixianglai@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Change-Id: Ia8fc48fe08b1768853f7729e77d37cdf270031e4
Message-Id: <20240105075804.1228596-5-zhaotianrui@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2024-01-11 19:14:00 +08:00
Tianrui Zhao
6278465696 target/loongarch: Supplement vcpu env initial when vcpu reset
Supplement vcpu env initial when vcpu reset, including
init vcpu CSR_CPUID,CSR_TID to cpu->cpu_index. The two
regs will be used in kvm_get/set_csr_ioctl.

Signed-off-by: Tianrui Zhao <zhaotianrui@loongson.cn>
Signed-off-by: xianglai li <lixianglai@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240105075804.1228596-4-zhaotianrui@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2024-01-11 19:14:00 +08:00
Tianrui Zhao
537ba9da17 target/loongarch: Define some kvm_arch interfaces
Define some functions in target/loongarch/kvm/kvm.c,
such as kvm_arch_put_registers, kvm_arch_get_registers
and kvm_arch_handle_exit, etc. which are needed by
kvm/kvm-all.c. Now the most functions has no content
and they will be implemented in the next patches.

Signed-off-by: Tianrui Zhao <zhaotianrui@loongson.cn>
Signed-off-by: xianglai li <lixianglai@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240105075804.1228596-3-zhaotianrui@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2024-01-11 19:14:00 +08:00
Stefan Hajnoczi
195801d700 system/cpus: rename qemu_mutex_lock_iothread() to bql_lock()
The Big QEMU Lock (BQL) has many names and they are confusing. The
actual QemuMutex variable is called qemu_global_mutex but it's commonly
referred to as the BQL in discussions and some code comments. The
locking APIs, however, are called qemu_mutex_lock_iothread() and
qemu_mutex_unlock_iothread().

The "iothread" name is historic and comes from when the main thread was
split into into KVM vcpu threads and the "iothread" (now called the main
loop thread). I have contributed to the confusion myself by introducing
a separate --object iothread, a separate concept unrelated to the BQL.

The "iothread" name is no longer appropriate for the BQL. Rename the
locking APIs to:
- void bql_lock(void)
- void bql_unlock(void)
- bool bql_locked(void)

There are more APIs with "iothread" in their names. Subsequent patches
will rename them. There are also comments and documentation that will be
updated in later patches.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Acked-by: Fabiano Rosas <farosas@suse.de>
Acked-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Acked-by: Peter Xu <peterx@redhat.com>
Acked-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Acked-by: Hyman Huang <yong.huang@smartx.com>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-id: 20240102153529.486531-2-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2024-01-08 10:45:43 -05:00
Song Gao
5c23704e47 target/loongarch: move translate modules to tcg/
Introduce the target/loongarch/tcg directory. Its purpose is to hold the TCG
code that is selected by CONFIG_TCG

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240102020200.3462097-2-gaosong@loongson.cn>
2024-01-06 10:18:52 +08:00