Re: [PULL 00/24] tcg + linux-user queue for 8.1-rc3

[Richard Henderson <richard.henderson@linaro.org>]

On 8/5/23 20:36, Richard Henderson wrote:
> The following changes since commit 6db03ccc7f4ca33c99debaac290066f4500a2dfb:
> 
>    Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging (2023-08-04 14:47:00 -0700)
> 
> are available in the Git repository at:
> 
>    https://gitlab.com/rth7680/qemu.git tags/pull-tcg-20230805
> 
> for you to fetch changes up to 843246699425adfb6b81f927c16c9c6249b51e1d:
> 
>    linux-user/elfload: Set V in ELF_HWCAP for RISC-V (2023-08-05 18:17:20 +0000)
> 
> ----------------------------------------------------------------
> accel/tcg: Do not issue misaligned i/o
> accel/tcg: Call save_iotlb_data from io_readx
> gdbstub: use 0 ("any process") on packets with no PID
> linux-user: Fixes for MAP_FIXED_NOREPLACE
> linux-user: Fixes for brk
> linux-user: Adjust task_unmapped_base for reserved_va
> linux-user: Use ELF_ET_DYN_BASE for ET_DYN with interpreter
> linux-user: Remove host != guest page size workarounds in brk and image load
> linux-user: Set V in ELF_HWCAP for RISC-V
> *-user: Remove last_brk as unused
> 
> ----------------------------------------------------------------
> Akihiko Odaki (6):
>        linux-user: Unset MAP_FIXED_NOREPLACE for host
>        linux-user: Fix MAP_FIXED_NOREPLACE on old kernels
>        linux-user: Do not call get_errno() in do_brk()
>        linux-user: Use MAP_FIXED_NOREPLACE for do_brk()
>        linux-user: Do nothing if too small brk is specified
>        linux-user: Do not align brk with host page size
> 
> Helge Deller (1):
>        linux-user: Adjust initial brk when interpreter is close to executable
> 
> Matheus Tavares Bernardino (1):
>        gdbstub: use 0 ("any process") on packets with no PID
> 
> Mikhail Tyutin (1):
>        accel/tcg: Call save_iotlb_data from io_readx as well.
> 
> Nathan Egge (1):
>        linux-user/elfload: Set V in ELF_HWCAP for RISC-V
> 
> Richard Henderson (14):
>        accel/tcg: Adjust parameters and locking with do_{ld,st}_mmio_*
>        accel/tcg: Issue wider aligned i/o in do_{ld,st}_mmio_*
>        accel/tcg: Do not issue misaligned i/o
>        linux-user: Remove last_brk
>        bsd-user: Remove last_brk
>        linux-user: Adjust task_unmapped_base for reserved_va
>        linux-user: Define TASK_UNMAPPED_BASE in $guest/target_mman.h
>        linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h
>        linux-user: Use MAP_FIXED_NOREPLACE for initial image mmap
>        linux-user: Use elf_et_dyn_base for ET_DYN with interpreter
>        linux-user: Properly set image_info.brk in flatload
>        linux-user: Do not adjust image mapping for host page size
>        linux-user: Do not adjust zero_bss for host page size
>        linux-user: Use zero_bss for PT_LOAD with no file contents too

Applied a truncated version of this PR:

3c4a8a8fda bsd-user: Remove last_brk
62cbf08150 linux-user: Remove last_brk
0662a626a7 linux-user: Properly set image_info.brk in flatload
2aea137a42 linux-user: Do not align brk with host page size
cb9d5d1fda linux-user: Do nothing if too small brk is specified
e69e032d1a linux-user: Use MAP_FIXED_NOREPLACE for do_brk()
c6cc059eca linux-user: Do not call get_errno() in do_brk()
ddcdd8c48f linux-user: Fix MAP_FIXED_NOREPLACE on old kernels
c3dd50da0f linux-user: Unset MAP_FIXED_NOREPLACE for host
4333f0924c linux-user/elfload: Set V in ELF_HWCAP for RISC-V
89e5b7935e configure: Fix linux-user host detection for riscv64
6c78de6eb6 gdbstub: use 0 ("any process") on packets with no PID
c30d0b861c accel/tcg: Call save_iotlb_data from io_readx as well
f7eaf9d702 accel/tcg: Do not issue misaligned i/o
190aba803f accel/tcg: Issue wider aligned i/o in do_{ld,st}_mmio_*
1966855e56 accel/tcg: Adjust parameters and locking with do_{ld,st}_mmio_*


The "Use MAP_FIXED_NOREPLACE for initial image mmap" patch tickles a latent bug in 
probe_guest_base, which affects our s390x host.  I omitted all of the task_unmapped_base 
and elf_et_dyn_base patches as well since they are also affect layout.


r~