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AFNElJ+0H1DyKyKJ5gRLD+SIBE+ycjrUeo5nhKqO+17Kv4u2Kgo/U4sN/+SzPfqftzR+mYvww0oDjqneNdhKcsE=@vger.kernel.org X-Gm-Message-State: AOJu0YwhmwxxhXKZ/XDzMkyux9vWsMDuT5umq4KWJOAH1OONoe9xY6oK DZqvnKPFDuZswhHzeksSuMUJKWZjyvxFO+ry3bWKWhEmwKdg4jezUjMcsRYWWxwgarPM4ZK41wt LbpGHag== X-Received: from pliq5.prod.google.com ([2002:a17:903:3905:b0:2b2:3f89:e9d2]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:903:252:b0:2b0:ac1e:9737 with SMTP id d9443c01a7336-2beb058d650mr240861805ad.12.1779846777893; Tue, 26 May 2026 18:52:57 -0700 (PDT) Date: Tue, 26 May 2026 18:52:57 -0700 In-Reply-To: <20260421231557.1254270-4-jrhilke@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260421231557.1254270-1-jrhilke@google.com> <20260421231557.1254270-4-jrhilke@google.com> Message-ID: Subject: Re: [PATCH v3 03/16] KVM: selftests: Add guest read/write macros From: Sean Christopherson To: Josh Hilke Cc: Paolo Bonzini , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, David Matlack , Alex Williamson Content-Type: text/plain; charset="us-ascii" On Tue, Apr 21, 2026, Josh Hilke wrote: > diff --git a/tools/testing/selftests/kvm/steal_time.c b/tools/testing/selftests/kvm/steal_time.c > index 7be8adfe5dd3..23380de79817 100644 > --- a/tools/testing/selftests/kvm/steal_time.c > +++ b/tools/testing/selftests/kvm/steal_time.c > @@ -72,8 +72,7 @@ static void steal_time_init(struct kvm_vcpu *vcpu, uint32_t i) > int ret; > > /* ST_GPA_BASE is identity mapped */ > - st_gva[i] = (void *)(ST_GPA_BASE + i * STEAL_TIME_SIZE); > - sync_global_to_guest(vcpu->vm, st_gva[i]); > + WRITE_AND_SYNC_TO_GUEST(vcpu->vm, st_gva[i], (void *)(ST_GPA_BASE + i * STEAL_TIME_SIZE)); Please wrap these. 80 chars is a soft limit (and so is 100 chars), but the purpose of the rules *and* their exceptions is to make the code easier to read. This is hard to parse, because there's so much going on in one line, whereas I find this easier to tease apart: WRITE_AND_SYNC_TO_GUEST(vcpu->vm, st_gva[i], (void *)(ST_GPA_BASE + i * STEAL_TIME_SIZE)); > > ret = _vcpu_set_msr(vcpu, MSR_KVM_STEAL_TIME, > (ulong)st_gva[i] | KVM_STEAL_RESERVED_MASK);