From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pg1-f201.google.com (mail-pg1-f201.google.com [209.85.215.201]) (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 6FAF321D5AA for ; Thu, 13 Nov 2025 22:16:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763072206; cv=none; b=IWmJORBOQ7IeDX0+mseJ9D2pxvwyixRNRAw/t/KuxgH7dpM06OCmydzsoG8Eu9tkPbDZ4qE8xGTDT+kBkw77Ca2SjK9FVAZCA+xvAzpiXO38lT9p+SjH3rsYSPRUOgt2zybkJBjFOD5JFTuVME6LWOtrEvOlK5cAOfgGLwkD4sU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763072206; c=relaxed/simple; bh=JdBQcAsWlFlo5Ha79WPmayx98/KwI1e52xQFhXG7Mm4=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=qo77t2p51g5JyBu2OlIASaUzpwPv7CUmTlqO5/wXaaIKmJp16O2jVr0TZw73gAzZ8a6gOm52hHBwUri8WOT+ftBJ4OjouFJowUuStJuK5X2gMcinKoKxw4DxtsT1X0Mqi5C1SVuZYnjbV1ANLB97XxgPtZbbgvj6PjSqMyjTZYA= 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=lxnH37Cl; arc=none smtp.client-ip=209.85.215.201 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="lxnH37Cl" Received: by mail-pg1-f201.google.com with SMTP id 41be03b00d2f7-b993eb2701bso1465801a12.0 for ; Thu, 13 Nov 2025 14:16:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1763072205; x=1763677005; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:reply-to:from:to:cc :subject:date:message-id:reply-to; bh=FMjpCguEvQW7NYJGx/IL/F0RtN/3l3y8bsXjBCAVXoI=; b=lxnH37ClDM9gXFPyI17IQxW8FaK7ru4z/gINfNy9qEsdqRK5B252f1He3yjxXzdhYW +ka49P+dCqLvuIxA9B7SqyAsJmjbpbDWOBdZbhALJ112TxtVr6t5ntYeTHquViBK7WA9 /RNQTBBdbBPTyUQrRxBIMfHHY0d1IdK//Ca+cQh5xUDeCW1/eRgZCz0yxHtSzfRfGDtU 6ilBjbq6DLaaza4xpRK4mkcZM++RFGoPSalz9A8xrXGoy7BQydk/sto4jG8T35EZO7gV sC4bXq4au9++Yn7D+MtX9JxqT4HQc4poaomncdHuW6mtwbk/QJIoVfzOeGHfAGc1juDC fUmg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1763072205; x=1763677005; h=cc:to:from:subject:message-id:mime-version:date:reply-to :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=FMjpCguEvQW7NYJGx/IL/F0RtN/3l3y8bsXjBCAVXoI=; b=uZQhi8iJAzJS4V1loFpvcjY0Ht0WqWMrUkgAq0H7rMdVFWaK/Lx3banQKDwIqHGil1 KY5K+XGrdc955R71+s0GPMtrmwwo6ZCoIgb5xH2pmUX2jLPVvq9i7TNiK5Mlb9UpzOOi G4M01Ic19Euunto/PA/1xyjAerwZU1ww1D8HQ7Swuz+LkvKYWm/5R3OsEtwh/5KZXj23 bG5/6i7KjV3eCH40L539bzlQzszmjRA3lerCQPgJdOHFD4mqKeGX/N1uX+tu/oduCiW5 6hWvsayEunlH3EI3y0uoeHpCWlf+L3CpR67Lps3aTJILKArTe2kGJxaShkqExVuTz7rN iL9w== X-Forwarded-Encrypted: i=1; AJvYcCX9RqugtgqbUvVnL8zstwfF284eXb6dZRHreAZayJ0nhBsfLytjHoxrKJUfRsizX8wCrz4P6dYxrpvDrQI=@vger.kernel.org X-Gm-Message-State: AOJu0YzjDApNJu2O5GigxLMUaK3itI9AOBSlRJWjC9E9+Jax/plWPsJE ZPc6Ss6OiIZtpRzBwm0AZNUOdE3cYDH8Rp+lOuptkDC+AgkGrPOu7cwCqu6OG5VOnipeoFmtSwr zEeAjtQ== X-Google-Smtp-Source: AGHT+IEtTwZ+tNJ8n3My2Pmt/4zjqfSexjTdTxns2w+dvgW8nsbwrXm9O1sqJ6JrsJVBgPG6oQcrv4tTAZM= X-Received: from pgbgb8.prod.google.com ([2002:a05:6a02:4b48:b0:bac:a20:5ef4]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a20:7352:b0:34f:4309:ed32 with SMTP id adf61e73a8af0-35ba0578077mr1328229637.23.1763072204716; Thu, 13 Nov 2025 14:16:44 -0800 (PST) Reply-To: Sean Christopherson Date: Thu, 13 Nov 2025 14:16:40 -0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.52.0.rc1.455.g30608eb744-goog Message-ID: <20251113221642.1673023-1-seanjc@google.com> Subject: [PATCH 0/2] KVM: SVM: Add fast MMIO bus writes From: Sean Christopherson To: Sean Christopherson , Paolo Bonzini Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Add support for expediting fast MMIO bus writes in SVM's npt_interception() to match VMX's support in handle_ept_misconfig(). I don't recall what prompted me to write the patches; I suspect it was a "well, why not?" situation. They've been sitting in one of my bajillion branches since May, and I rediscovered them while looking for something else. Sean Christopherson (2): KVM: SVM: Rename "fault_address" to "gpa" in npf_interception() KVM: SVM: Add support for expedited writes to the fast MMIO bus arch/x86/kvm/svm/svm.c | 29 +++++++++++++++++++++++++---- 1 file changed, 25 insertions(+), 4 deletions(-) base-commit: 16ec4fb4ac95d878b879192d280db2baeec43272 -- 2.52.0.rc1.455.g30608eb744-goog