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base repository: qemu/qemu
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  • 6 commits
  • 9 files changed
  • 3 contributors

Commits on May 15, 2023

  1. 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: a2e1753 ("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>
    @a1xndr @gaosong-loongson
    a1xndr authored and gaosong-loongson committed May 15, 2023
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  2. 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>
    @gaosong-loongson
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  3. 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>
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  4. 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>
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  5. 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>
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  6. Merge tag 'pull-loongarch-20230515' of https://gitlab.com/gaosong/qemu … 

    …into staging

pull-loongarch-20230515

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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>
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    rth7680 committed May 15, 2023
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