Merge tag 'pull-misc-20250924' of https://gitlab.com/rth7680/qemu into staging

hw/pci-host/{dino,astro}: Don't call pci_register_root_bus() in init
target/sparc: Loosen various decode for v7
linux-user: Add syscall dispatch support
tcg/optimize: Fix folding of vector bitsel
include/hw/core/cpu: Introduce MMUIdxMap
include/hw/core/cpu: Introduce cpu_tlb_fast
include/hw/core/cpu: Invert the indexing into CPUTLBDescFast
accel/tcg: Remove dead mmap_unlock() call in invalidate_phys_page_range
accel/tcg: Remove cpu_loop_exit_restore() stub
accel/tcg: Properly unlink a TB linked to itself
accel/tcg: Introduce and use tb_flush__exclusive_or_serial

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* tag 'pull-misc-20250924' of https://gitlab.com/rth7680/qemu: (32 commits)
  accel/tcg: Remove cpu_loop_exit_restore() stub
  accel/tcg: Remove dead mmap_unlock() call in invalidate_phys_page_range
  accel/tcg: Improve buffer overflow in tb_gen_code
  accel/tcg: Create queue_tb_flush from tb_flush
  linux-user: Split out begin_parallel_context
  plugins: Use tb_flush__exclusive_or_serial
  accel/tcg: Move post-load tb_flush to vm_change_state hook
  accel/tcg: Split out tb_flush__exclusive_or_serial
  hw/ppc/spapr: Use tb_invalidate_phys_range in h_page_init
  target/riscv: Record misa_ext in TCGTBCPUState.cs_base
  target/alpha: Simplify call_pal implementation
  gdbstub: Remove tb_flush uses
  tests/tcg/multiarch: Add tb-link test
  accel/tcg: Properly unlink a TB linked to itself
  target/hppa: Adjust mmu indexes to begin with 0
  include/hw/core/cpu: Invert the indexing into CPUTLBDescFast
  include/hw/core/cpu: Introduce cpu_tlb_fast
  include/hw/core/cpu: Introduce MMUIdxMap
  tcg/optimize: Fix folding of vector bitsel
  hw/pci-host/astro: Don't call pci_regsiter_root_bus() in init
  ...

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>