Commit Graph

324 Commits

Author SHA1 Message Date
Philippe Mathieu-Daudé
2a99b2af2c target/loongarch: Use explicit little-endian LD/ST API
The LoongArch architecture uses little endianness. Directly
use the little-endian LD/ST API.

Mechanical change using:

  $ end=le; \
    for acc in uw w l q tul; do \
      sed -i -e "s/ld${acc}_p(/ld${acc}_${end}_p(/" \
             -e "s/st${acc}_p(/st${acc}_${end}_p(/" \
        $(git grep -wlE '(ld|st)t?u?[wlq]_p' target/loongarch/); \
    done

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241004163042.85922-13-philmd@linaro.org>
2024-10-15 12:13:59 -03:00
Peter Maydell
b5ab62b3c0 * pc: Add a description for the i8042 property
* kvm: support for nested FRED
 * tests/unit: fix warning when compiling test-nested-aio-poll with LTO
 * kvm: refactoring of VM creation
 * target/i386: expose IBPB-BRTYPE and SBPB CPUID bits to the guest
 * hw/char: clean up serial
 * remove virtfs-proxy-helper
 * target/i386/kvm: Report which action failed in kvm_arch_put/get_registers
 * qom: improvements to object_resolve_path*()
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* pc: Add a description for the i8042 property
* kvm: support for nested FRED
* tests/unit: fix warning when compiling test-nested-aio-poll with LTO
* kvm: refactoring of VM creation
* target/i386: expose IBPB-BRTYPE and SBPB CPUID bits to the guest
* hw/char: clean up serial
* remove virtfs-proxy-helper
* target/i386/kvm: Report which action failed in kvm_arch_put/get_registers
* qom: improvements to object_resolve_path*()

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# gpg: Signature made Thu 03 Oct 2024 21:04:27 BST
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu: (23 commits)
  qom: update object_resolve_path*() documentation
  qom: set *ambiguous on all paths
  qom: rename object_resolve_path_type() "ambiguousp"
  target/i386/kvm: Report which action failed in kvm_arch_put/get_registers
  kvm: Allow kvm_arch_get/put_registers to accept Error**
  accel/kvm: refactor dirty ring setup
  minikconf: print error entirely on stderr
  9p: remove 'proxy' filesystem backend driver
  hw/char: Extract serial-mm
  hw/char/serial.h: Extract serial-isa.h
  hw: Remove unused inclusion of hw/char/serial.h
  target/i386: Expose IBPB-BRTYPE and SBPB CPUID bits to the guest
  kvm: refactor core virtual machine creation into its own function
  kvm/i386: replace identity_base variable with a constant
  kvm/i386: refactor kvm_arch_init and split it into smaller functions
  kvm: replace fprintf with error_report()/printf() in kvm_init()
  kvm/i386: fix return values of is_host_cpu_intel()
  kvm/i386: make kvm_filter_msr() and related definitions private to kvm module
  hw/i386/pc: Add a description for the i8042 property
  tests/unit: remove block layer code from test-nested-aio-poll
  ...

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

# Conflicts:
#	hw/arm/Kconfig
#	hw/arm/pxa2xx.c
2024-10-04 19:28:37 +01:00
Julia Suvorova
a1676bb304 kvm: Allow kvm_arch_get/put_registers to accept Error**
This is necessary to provide discernible error messages to the caller.

Signed-off-by: Julia Suvorova <jusual@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/20240927104743.218468-2-jusual@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-10-03 22:04:19 +02:00
Marc-André Lureau
3cd804c565 target/loongarch: fix -Werror=maybe-uninitialized false-positive
../target/loongarch/gdbstub.c:55:20: error: ‘val’ may be used uninitialized [-Werror=maybe-uninitialized]
   55 |             return gdb_get_reg32(mem_buf, val);
      |                    ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../target/loongarch/gdbstub.c:39:18: note: ‘val’ was declared here
   39 |         uint64_t val;

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
2024-10-02 16:14:29 +04:00
Michael Tokarev
5691f4778e mark <zlib.h> with for-crc32 in a consistent manner
in many cases, <zlib.h> is only included for crc32 function,
and in some of them, there's a comment saying that, but in
a different way.  In one place (hw/net/rtl8139.c), there was
another #include added between the comment and <zlib.h> include.

Make all such comments to be on the same line as #include, make
it consistent, and also add a few missing comments, including
hw/nvram/mac_nvram.c which uses adler32 instead.

There's no code changes.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2024-09-20 08:06:56 +03:00
Bibo Mao
32c22cc47c target/loongarch: Support QMP dump-guest-memory
Add the support needed for creating prstatus elf notes. This allows
us to use QMP dump-guest-memory.

Now ELF notes of LoongArch only supports general elf notes, LSX and
LASX is not supported, since it is mainly used to dump guest memory.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Tested-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240822065245.2286214-1-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2024-09-12 20:51:18 +08:00
Bibo Mao
a724f5a84e target/loongarch/kvm: Add vCPU reset function
KVM provides interface KVM_REG_LOONGARCH_VCPU_RESET to reset vCPU,
it can be used to clear internal state about kvm kernel. vCPU reset
function is added here for kvm mode.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240822022827.2273534-1-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2024-09-12 20:51:18 +08:00
Bibo Mao
a840d70ee4 target/loongarch: Add compatible support about VM reboot
With edk2-stable202408 LoongArch UEFI bios, CSR PGD register is set only
if its value is equal to zero for boot cpu, it causes reboot issue. Since
CSR PGD register is changed with linux kernel, UEFI BIOS cannot use it.

Add workaround to clear CSR registers relative with TLB in function
loongarch_cpu_reset_hold(), so that VM can reboot with edk2-stable202408
UEFI bios.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240827035807.3326293-1-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2024-09-12 20:51:18 +08:00
Song Gao
a18ffbcf8b target/loongarch: Fix helper_lddir() a CID INTEGER_OVERFLOW issue
When the lddir level is 4 and the base is a HugePage, we may try to put value 4
into a field in the TLBENTRY that is only 2 bits wide.

Fixes: Coverity CID 1547717
Fixes: 9c70db9a43 ("target/loongarch: Fix tlb huge page loading issue")
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240724015853.1317396-1-gaosong@loongson.cn>
2024-07-24 16:52:18 +08:00
Song Gao
1c15dd632b target/loongarch/gdbstub: Add vector registers support
GDB already support LoongArch vector extension[1], QEMU gdb adds
LoongArch vector registers support, so that users can use 'info all-registers'
to get all vector registers values.

[1]: https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=1e9569f383a3d5a88ee07d0c2401bd95613c222e

Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewd-by: Bibo Mao <maobibo@loongson.cn>
Message-Id: <20240711024454.3075183-1-gaosong@loongson.cn>
2024-07-19 10:40:04 +08:00
Song Gao
3ef4b21a5c target/loongarch: Fix cpu_reset set wrong CSR_CRMD
After cpu_reset, DATF in CSR_CRMD is 0, DATM is 0.
See the manual[1] 6.4.

  [1]: https://github.com/loongson/LoongArch-Documentation/releases/download/2023.04.20/LoongArch-Vol1-v1.10-EN.pdf

Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Message-Id: <20240705021839.1004374-2-gaosong@loongson.cn>
2024-07-12 09:41:18 +08:00
Song Gao
bba1c36da0 target/loongarch: Set CSR_PRCFG1 and CSR_PRCFG2 values
We set the value of register CSR_PRCFG3, but left out CSR_PRCFG1
and CSR_PRCFG2. Set CSR_PRCFG1 and CSR_PRCFG2 according to the
default values of the physical machine.

Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Message-Id: <20240705021839.1004374-1-gaosong@loongson.cn>
2024-07-12 09:41:18 +08:00
Feiyang Chen
785875874d target/loongarch: Remove avail_64 in trans_srai_w() and simplify it
Since srai.w is a valid instruction on la32, remove the avail_64 check
and simplify trans_srai_w().

Fixes: c0c0461e3a ("target/loongarch: Add avail_64 to check la64-only instructions")
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Feiyang Chen <chris.chenfeiyang@gmail.com>
Message-Id: <20240628033357.50027-1-chris.chenfeiyang@gmail.com>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2024-07-12 09:41:18 +08:00
Bibo Mao
d38e31ef74 target/loongarch/kvm: Add software breakpoint support
With KVM virtualization, debug exception is injected to guest kernel
rather than host for normal break intruction. Here hypercall
instruction with special code is used for sw breakpoint usage,
and detailed instruction comes from kvm kernel with user API
KVM_REG_LOONGARCH_DEBUG_INST.

Now only software breakpoint is supported, and it is allowed to
insert/remove software breakpoint. We can debug guest kernel with gdb
method after kernel is loaded, hardware breakpoint will be added in later.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Tested-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240607035016.2975799-1-maobibo@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2024-07-12 09:41:18 +08:00
Peter Maydell
4f7b1ecba8 target: Set TCGCPUOps::cpu_exec_halt to target's has_work implementation
Currently the TCGCPUOps::cpu_exec_halt method is optional, and if it
is not set then the default is to call the CPUClass::has_work
method (which has an identical function signature).

We would like to make the cpu_exec_halt method mandatory so we can
remove the runtime check and fallback handling.  In preparation for
that, make all the targets which don't need special handling in their
cpu_exec_halt set it to their cpu_has_work implementation instead of
leaving it unset.  (This is every target except for arm and i386.)

In the riscv case this requires us to make the function not
be local to the source file it's defined in.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-07-11 11:41:34 +01:00
lanyanzhi
78f932ea1f target/loongarch: fix a wrong print in cpu dump
description:
    loongarch_cpu_dump_state() want to dump all loongarch cpu
state registers, but there is a tiny typographical error when
printing "PRCFG2".

Cc: qemu-stable@nongnu.org
Signed-off-by: lanyanzhi <lanyanzhi22b@ict.ac.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240604073831.666690-1-lanyanzhi22b@ict.ac.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
2024-06-06 11:58:06 +08:00
Song Gao
2b284fa9ea hw/loongarch/virt: Enable extioi virt extension
This patch adds a new board attribute 'v-eiointc'.
A value of true enables the virt extended I/O interrupt controller.
VMs working in kvm mode have 'v-eiointc' enabled by default.

Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Message-Id: <20240528083855.1912757-4-gaosong@loongson.cn>
2024-06-06 11:56:45 +08:00
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.

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* 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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# 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