From: Andrew Jones <andrew.jones@linux.dev>
To: Sean Christopherson <seanjc@google.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Marc Zyngier <maz@kernel.org>, Anup Patel <anup@brainfault.org>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Janosch Frank <frankja@linux.ibm.com>,
Claudio Imbrenda <imbrenda@linux.ibm.com>,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
James Morse <james.morse@arm.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Oliver Upton <oliver.upton@linux.dev>,
Atish Patra <atishp@atishpatra.org>,
David Hildenbrand <david@redhat.com>, Tom Rix <trix@redhat.com>,
kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu, kvm-riscv@lists.infradead.org,
linux-riscv@lists.infradead.org, llvm@lists.linux.dev,
linux-kernel@vger.kernel.org,
Colton Lewis <coltonlewis@google.com>,
Peter Gonda <pgonda@google.com>
Subject: Re: [PATCH v5 6/7] KVM: selftest: Drop now-unnecessary ucall_uninit()
Date: Mon, 29 Aug 2022 18:21:11 +0200 [thread overview]
Message-ID: <20220829162111.wl65dxexk5qtrssf@kamzik> (raw)
In-Reply-To: <20220825232522.3997340-7-seanjc@google.com>
On Thu, Aug 25, 2022 at 11:25:21PM +0000, Sean Christopherson wrote:
> Drop ucall_uninit() and ucall_arch_uninit() now that ARM doesn't modify
> the host's copy of ucall_exit_mmio_addr, i.e. now that there's no need to
> reset the pointer before potentially creating a new VM. The few calls to
> ucall_uninit() are all immediately followed by kvm_vm_free(), and that is
> likely always going to hold true, i.e. it's extremely unlikely a test
> will want to effectively disable ucall in the middle of a test.
>
> Signed-off-by: Sean Christopherson <seanjc@google.com>
> ---
> tools/testing/selftests/kvm/dirty_log_test.c | 1 -
> tools/testing/selftests/kvm/include/ucall_common.h | 6 ------
> tools/testing/selftests/kvm/kvm_page_table_test.c | 1 -
> tools/testing/selftests/kvm/lib/aarch64/ucall.c | 14 ++------------
> tools/testing/selftests/kvm/lib/perf_test_util.c | 1 -
> tools/testing/selftests/kvm/lib/riscv/ucall.c | 4 ----
> tools/testing/selftests/kvm/lib/s390x/ucall.c | 4 ----
> tools/testing/selftests/kvm/lib/x86_64/ucall.c | 4 ----
> 8 files changed, 2 insertions(+), 33 deletions(-)
>
Reviewed-by: Andrew Jones <andrew.jones@linux.dev>
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next prev parent reply other threads:[~2022-08-29 16:32 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-25 23:25 [PATCH v5 0/7] KVM: selftests: Implement ucall "pool" (for SEV) Sean Christopherson
2022-08-25 23:25 ` [PATCH v5 1/7] KVM: selftests: Consolidate common code for populating ucall struct Sean Christopherson
2022-08-25 23:25 ` [PATCH v5 2/7] KVM: selftests: Consolidate boilerplate code in get_ucall() Sean Christopherson
2022-08-25 23:25 ` [PATCH v5 3/7] KVM: selftests: Automatically do init_ucall() for non-barebones VMs Sean Christopherson
2022-08-29 16:15 ` Andrew Jones
2022-08-25 23:25 ` [PATCH v5 4/7] tools: Add atomic_test_and_set_bit() Sean Christopherson
2022-08-25 23:25 ` [PATCH v5 5/7] KVM: selftests: Make arm64's MMIO ucall multi-VM friendly Sean Christopherson
2022-08-29 16:19 ` Andrew Jones
2022-08-25 23:25 ` [PATCH v5 6/7] KVM: selftest: Drop now-unnecessary ucall_uninit() Sean Christopherson
2022-08-29 16:21 ` Andrew Jones [this message]
2022-08-25 23:25 ` [PATCH v5 7/7] KVM: selftests: Add ucall pool based implementation Sean Christopherson
2022-08-29 16:36 ` Andrew Jones
2022-08-30 4:27 ` Sean Christopherson
2022-08-26 21:32 ` [PATCH v5 0/7] KVM: selftests: Implement ucall "pool" (for SEV) Peter Gonda
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