From nobody Thu Oct 2 19:28:01 2025 Received: from mail-pl1-f202.google.com (mail-pl1-f202.google.com [209.85.214.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7BA4D2848A4 for ; Fri, 12 Sep 2025 23:23:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757719410; cv=none; b=oumWMwtImMxfQWjPzxONQNco6g39IVkAC49G191pDLrpI33VfmJn3qREBimEnsuC7AIpdN3fjD1ek20P+BJxhqxeRuLhIz6y0CsVFGrJGk/3jrEoz5Ap3iJunE1Y+Kn8ASwjf4WTW1i6AOc7ywmb1WMvo+2b3E2P4oRi5+iqtI4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757719410; c=relaxed/simple; bh=r7keHhPSl/ZsINgiku4qxCsoIZDRWPCly3Ia9CUnCtM=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=hUIeLTCpn2EwMcH9hHMKqu2s3FvGOrgxcraSjMMQBBSp6PEe2gfHtd8jyo1xIGVOrkQQz/qC7VjrAb+w4hF3J2pVll7MMon3ZmMNZNm0GQQSEqU5FWsUwRjMOKjiXjFRTyY6FOBaGpl1UobpktC0c5CbYV8PLqjJktM9PGpXYfc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=g2Hq5nYv; arc=none smtp.client-ip=209.85.214.202 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="g2Hq5nYv" Received: by mail-pl1-f202.google.com with SMTP id d9443c01a7336-25d449089e8so22390895ad.1 for ; Fri, 12 Sep 2025 16:23:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1757719407; x=1758324207; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:from:to:cc:subject:date:message-id:reply-to; bh=2aufua2/8jN63zHyNl5OPd1VmsqwIgjY1xs28jVoYjg=; b=g2Hq5nYvywDPeEOIn39Iar5Z3v5QwMY2Gl+ZWnQUgvyk/JS2udb+Zywb/oWL1O5iN3 cyOQQ9ylLUW/UYgok63vrra0JpDSmF35Tsq4YoNe2Hg16gU76DjxB4VYBPfIoMoFBwTJ 8MKMCDMfQhnkV2pwNwTTR/AUPERDdvvfPvpJXynMAzAQK9o1eejWS75f66rdOz5SJbKA 86OagnMcMJt4L8mMNG676gK5RLPCJ/9DPzxJOevxL5fViwbkZJ2qVN60Oy4hJZk3J/sq MvnCk3VWFW+hfhTfDtgWMBQKER/iPZClH2JYRxnYgERtx4qkYqlzFHuyun6lr8Xgkx69 XLdQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1757719407; x=1758324207; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:reply-to:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=2aufua2/8jN63zHyNl5OPd1VmsqwIgjY1xs28jVoYjg=; b=j5KR+TkAFP8sIvMpvD+0oi9hClF15oL9GXpxzSbzVl82YMXeEgiApmoV6O8LW3LGGQ uxy20jjtyFz42vgKgV4QsiCkfrNp3nwQ963HyzAzvkqbkbS9I6UMmBfnQB7zO/wvTJyj zsOcnNIGQH8AyXw1rjYHFWisDJTBe27XL8KRO9WCg9cT7L5Ym3UpyPvD6baoZe0XIPbv 3bLrReXwTjA/uUwN7JAomep5WaV3TzT5EYjlR2PpPZG8RSPR/5VWqw4nCUTy74bZg3Zh n3hCek3LODSaW0SJj9RntKv7ndMU/Y6C9y0QLAX75PyvOJchx9NRJBRmG2sTsV8/mX77 dgxA== X-Forwarded-Encrypted: i=1; AJvYcCXfNDt54WQ+R4mjZ4aZrlYDEtTnSa671ED+x2CEh8lpwH6O6WFbGOlTLdJZNZV40Qsuox3t4MJMzrIiAZs=@vger.kernel.org X-Gm-Message-State: AOJu0YzZWpR/08yhgU2RFRVWqOq8Z92nr1w603df8C8XlNg3WsEi1e+A bGOHyu7mg6iwDfjQfbsHASl5XzCaYM+p5Xtn7K94YCjv0jVfz85tbHeOuraoUZb3tdpZFO/E21x gZZC5Hw== X-Google-Smtp-Source: AGHT+IHHzgbw/XBQzAtCVBlNqG134UP+Hxy4J40on9uJ3r+AzCZzk5i/NZAmxAjojr+hxUYoGtUH6MD3BAA= X-Received: from plbmu15.prod.google.com ([2002:a17:903:b4f:b0:25c:9927:b204]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:902:fc47:b0:246:570:2d9a with SMTP id d9443c01a7336-25d286014e7mr57345885ad.59.1757719406796; Fri, 12 Sep 2025 16:23:26 -0700 (PDT) Reply-To: Sean Christopherson Date: Fri, 12 Sep 2025 16:22:39 -0700 In-Reply-To: <20250912232319.429659-1-seanjc@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250912232319.429659-1-seanjc@google.com> X-Mailer: git-send-email 2.51.0.384.g4c02a37b29-goog Message-ID: <20250912232319.429659-2-seanjc@google.com> Subject: [PATCH v15 01/41] KVM: SEV: Rename kvm_ghcb_get_sw_exit_code() to kvm_get_cached_sw_exit_code() From: Sean Christopherson To: Paolo Bonzini , Sean Christopherson Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Tom Lendacky , Mathias Krause , John Allen , Rick Edgecombe , Chao Gao , Maxim Levitsky , Xiaoyao Li , Zhang Yi Z Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Rename kvm_ghcb_get_sw_exit_code() to kvm_get_cached_sw_exit_code() to make it clear that KVM is getting the cached value, not reading directly from the guest-controlled GHCB. More importantly, vacating kvm_ghcb_get_sw_exit_code() will allow adding a KVM-specific macro-built kvm_ghcb_get_##field() helper to read values from the GHCB. No functional change intended. Signed-off-by: Sean Christopherson Reviewed-by: Tom Lendacky --- arch/x86/kvm/svm/sev.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c index 2fdd2e478a97..fe8d148b76c0 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -3216,7 +3216,7 @@ void sev_free_vcpu(struct kvm_vcpu *vcpu) kvfree(svm->sev_es.ghcb_sa); } =20 -static u64 kvm_ghcb_get_sw_exit_code(struct vmcb_control_area *control) +static u64 kvm_get_cached_sw_exit_code(struct vmcb_control_area *control) { return (((u64)control->exit_code_hi) << 32) | control->exit_code; } @@ -3242,7 +3242,7 @@ static void dump_ghcb(struct vcpu_svm *svm) */ pr_err("GHCB (GPA=3D%016llx) snapshot:\n", svm->vmcb->control.ghcb_gpa); pr_err("%-20s%016llx is_valid: %u\n", "sw_exit_code", - kvm_ghcb_get_sw_exit_code(control), kvm_ghcb_sw_exit_code_is_valid= (svm)); + kvm_get_cached_sw_exit_code(control), kvm_ghcb_sw_exit_code_is_val= id(svm)); pr_err("%-20s%016llx is_valid: %u\n", "sw_exit_info_1", control->exit_info_1, kvm_ghcb_sw_exit_info_1_is_valid(svm)); pr_err("%-20s%016llx is_valid: %u\n", "sw_exit_info_2", @@ -3331,7 +3331,7 @@ static int sev_es_validate_vmgexit(struct vcpu_svm *s= vm) * Retrieve the exit code now even though it may not be marked valid * as it could help with debugging. */ - exit_code =3D kvm_ghcb_get_sw_exit_code(control); + exit_code =3D kvm_get_cached_sw_exit_code(control); =20 /* Only GHCB Usage code 0 is supported */ if (svm->sev_es.ghcb->ghcb_usage) { @@ -4336,7 +4336,7 @@ int sev_handle_vmgexit(struct kvm_vcpu *vcpu) =20 svm_vmgexit_success(svm, 0); =20 - exit_code =3D kvm_ghcb_get_sw_exit_code(control); + exit_code =3D kvm_get_cached_sw_exit_code(control); switch (exit_code) { case SVM_VMGEXIT_MMIO_READ: ret =3D setup_vmgexit_scratch(svm, true, control->exit_info_2); --=20 2.51.0.384.g4c02a37b29-goog