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[47.54.130.67]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-8ac849e35afsm125548836d6.3.2026.04.13.09.11.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Apr 2026 09:11:25 -0700 (PDT) Received: from jgg by wakko with local (Exim 4.97) (envelope-from ) id 1wCJsj-00000005QA8-0eVh; Mon, 13 Apr 2026 13:11:25 -0300 Date: Mon, 13 Apr 2026 13:11:25 -0300 From: Jason Gunthorpe To: Ankit Soni Cc: iommu@lists.linux.dev, vasant.hegde@amd.com, suravee.suthikulpanit@amd.com, joro@8bytes.org, will@kernel.org, robin.murphy@arm.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH v5 1/4] iommu_pt: Fix pgsize_bitmap calculation in get_info for smaller vasz's Message-ID: <20260413161125.GN3694781@ziepe.ca> References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Mon, Apr 13, 2026 at 02:45:18PM +0000, Ankit Soni wrote: > To properly enforce the domain VA limit, clamp pgsize_bitmap using the > requested max_vasz_lg2 in get_info(). > Apply the same VA limit as get_info() in the kunit possible_sizes test so > assertions stay consistent with the domain bitmap. > > Suggested-by: Jason Gunthorpe > Signed-off-by: Ankit Soni > --- > drivers/iommu/generic_pt/iommu_pt.h | 8 ++++++-- > drivers/iommu/generic_pt/kunit_generic_pt.h | 10 +++++++--- > 2 files changed, 13 insertions(+), 5 deletions(-) Reviewed-by: Jason Gunthorpe Jason