[Qemu-commits] [qemu/qemu] 6d0589: loongarch: mark loongarch_ipi_iocsr re-entrnacy safe

[Richard Henderson]

  Branch: refs/heads/staging
  Home:   https://github.com/qemu/qemu
  Commit: 6d0589e0e6c64b888864a2bf980537be20389264
      
https://github.com/qemu/qemu/commit/6d0589e0e6c64b888864a2bf980537be20389264
  Author: Alexander Bulekov <alxndr@bu.edu>
  Date:   2023-05-15 (Mon, 15 May 2023)

  Changed paths:
    M hw/intc/loongarch_ipi.c

  Log Message:
  -----------
  loongarch: mark loongarch_ipi_iocsr re-entrnacy safe

loongarch_ipi_iocsr MRs rely on re-entrant IO through the ipi_send
function. As such, mark these MRs re-entrancy-safe.

Fixes: a2e1753b80 ("memory: prevent dma-reentracy issues")
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230506112145.3563708-1-alxndr@bu.edu>
Signed-off-by: Song Gao <gaosong@loongson.cn>


  Commit: 7318c62215ac1cf6b4d3c10b267e4cbc37a21f5a
      
https://github.com/qemu/qemu/commit/7318c62215ac1cf6b4d3c10b267e4cbc37a21f5a
  Author: Song Gao <gaosong@loongson.cn>
  Date:   2023-05-15 (Mon, 15 May 2023)

  Changed paths:
    M MAINTAINERS
    A tests/avocado/machine_loongarch.py

  Log Message:
  -----------
  tests/avocado: Add LoongArch machine start test

Add a new test in tests/avocado to check LoongArch virt machine start.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Message-Id: <20230513012744.1885728-1-gaosong@loongson.cn>


  Commit: 78464f023b5407c636239de43cef864d76098009
      
https://github.com/qemu/qemu/commit/78464f023b5407c636239de43cef864d76098009
  Author: Song Gao <gaosong@loongson.cn>
  Date:   2023-05-15 (Mon, 15 May 2023)

  Changed paths:
    M hw/intc/loongarch_ipi.c
    M hw/loongarch/virt.c
    M include/hw/intc/loongarch_ipi.h
    M include/hw/loongarch/virt.h

  Log Message:
  -----------
  hw/loongarch/virt: Modify ipi as percpu device

ipi is used to communicate between cpus, this patch modified
loongarch ipi device as percpu device, so that there are
2 MemoryRegions with ipi device, rather than 2*cpus
MemoryRegions, which may be large than QDEV_MAX_MMIO if
more cpus are added on loongarch virt machine.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230512100421.1867848-2-gaosong@loongson.cn>


  Commit: 646c39b220f789158313fee5d207f370e29c586a
      
https://github.com/qemu/qemu/commit/646c39b220f789158313fee5d207f370e29c586a
  Author: Song Gao <gaosong@loongson.cn>
  Date:   2023-05-15 (Mon, 15 May 2023)

  Changed paths:
    M hw/intc/loongarch_extioi.c
    M hw/loongarch/virt.c
    M include/hw/intc/loongarch_extioi.h
    M include/hw/loongarch/virt.h

  Log Message:
  -----------
  hw/loongarch/virt: Set max 256 cpus support on loongarch virt machine

Add separate macro EXTIOI_CPUS for extioi interrupt controller, extioi
only supports 4 cpu. And set macro LOONGARCH_MAX_CPUS as 256 so that
loongarch virt machine supports more cpus.

Interrupts from external devices can only be routed cpu 0-3 because
of extioi limits, cpu internal interrupt such as timer/ipi can be
triggered on all cpus.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230512100421.1867848-3-gaosong@loongson.cn>


  Commit: 7ef0eb35a4e6961d7e40f03f16ed241c95ae93f9
      
https://github.com/qemu/qemu/commit/7ef0eb35a4e6961d7e40f03f16ed241c95ae93f9
  Author: Song Gao <gaosong@loongson.cn>
  Date:   2023-05-15 (Mon, 15 May 2023)

  Changed paths:
    M hw/intc/loongarch_ipi.c
    M hw/intc/trace-events

  Log Message:
  -----------
  hw/intc: Add NULL pointer check on LoongArch ipi device

When ipi mailbox is used, cpu_index is decoded from iocsr register.
cpu maybe does not exist. This patch adds NULL pointer check on
ipi device.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230512100421.1867848-4-gaosong@loongson.cn>


  Commit: 18b6727083acceac5d76ea0b8cb6f5cdef6858a7
      
https://github.com/qemu/qemu/commit/18b6727083acceac5d76ea0b8cb6f5cdef6858a7
  Author: Richard Henderson <richard.henderson@linaro.org>
  Date:   2023-05-15 (Mon, 15 May 2023)

  Changed paths:
    M MAINTAINERS
    M hw/intc/loongarch_extioi.c
    M hw/intc/loongarch_ipi.c
    M hw/intc/trace-events
    M hw/loongarch/virt.c
    M include/hw/intc/loongarch_extioi.h
    M include/hw/intc/loongarch_ipi.h
    M include/hw/loongarch/virt.h
    A tests/avocado/machine_loongarch.py

  Log Message:
  -----------
  Merge tag 'pull-loongarch-20230515' of https://gitlab.com/gaosong/qemu into 
staging

pull-loongarch-20230515

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# gpg:                using RSA key B8FF1DA0D2FDCB2DA09C6C2C40A2FFF239263EDF
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* tag 'pull-loongarch-20230515' of https://gitlab.com/gaosong/qemu:
  hw/intc: Add NULL pointer check on LoongArch ipi device
  hw/loongarch/virt: Set max 256 cpus support on loongarch virt machine
  hw/loongarch/virt: Modify ipi as percpu device
  tests/avocado: Add LoongArch machine start test
  loongarch: mark loongarch_ipi_iocsr re-entrnacy safe

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


Compare: https://github.com/qemu/qemu/compare/67de9ebd0777...18b6727083ac