linux-kernel - Re: [PATCH v6 0/4] VM: selftests: Add LoongArch support

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Message-ID: <cd42d246-896d-56a9-8dc3-6c998695aad2@loongson.cn>
Date: Mon, 29 Jan 2024 10:41:26 +0800
From: maobibo <maobibo@...ngson.cn>
To: Sean Christopherson <seanjc@...gle.com>
Cc: Paolo Bonzini <pbonzini@...hat.com>, Shuah Khan <shuah@...nel.org>,
 Tianrui Zhao <zhaotianrui@...ngson.cn>, linux-kernel@...r.kernel.org,
 kvm@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: Re: [PATCH v6 0/4] VM: selftests: Add LoongArch support



On 2024/1/27 上午4:32, Sean Christopherson wrote:
> On Thu, Jan 25, 2024, Bibo Mao wrote:
>> ---
>> Tianrui Zhao (4):
>>    KVM: selftests: Add KVM selftests header files for LoongArch
>>    KVM: selftests: Add core KVM selftests support for LoongArch
>>    KVM: selftests: Add ucall test support for LoongArch
>>    KVM: selftests: Add test cases for LoongArch
>>
>>   tools/testing/selftests/kvm/Makefile          |  16 +
>>   .../selftests/kvm/include/kvm_util_base.h     |   5 +
>>   .../kvm/include/loongarch/processor.h         | 133 +++++++
>>   .../selftests/kvm/include/loongarch/ucall.h   |  20 ++
>>   .../selftests/kvm/lib/loongarch/exception.S   |  59 ++++
>>   .../selftests/kvm/lib/loongarch/processor.c   | 332 ++++++++++++++++++
>>   .../selftests/kvm/lib/loongarch/ucall.c       |  38 ++
>>   .../selftests/kvm/set_memory_region_test.c    |   2 +-
>>   8 files changed, 604 insertions(+), 1 deletion(-)
>>   create mode 100644 tools/testing/selftests/kvm/include/loongarch/processor.h
>>   create mode 100644 tools/testing/selftests/kvm/include/loongarch/ucall.h
>>   create mode 100644 tools/testing/selftests/kvm/lib/loongarch/exception.S
>>   create mode 100644 tools/testing/selftests/kvm/lib/loongarch/processor.c
>>   create mode 100644 tools/testing/selftests/kvm/lib/loongarch/ucall.c
> 
> I did a *very* quick read through and didn't see anything egregious.  I really
> hope that someday we can deduplicate much of the ARM/RISC-V/LoongArch code, but
> that's no reason to hold up getting selftests support merged.
> 
kvm seltests for LoongArch originally comes from ARM64, especially ucall 
and page table walk code. And LoongArch kvm actually benefits much from 
open source code, we will deduplicate some ARM/RISC-V/LoongArch kvm 
selftests code when LoongArch KVM is basically supported.

Regards
Bibo Mao