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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b935ab135bfsm479911566b.1.2026.03.02.06.49.05 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 02 Mar 2026 06:49:06 -0800 (PST) Message-ID: Date: Mon, 2 Mar 2026 15:49:04 +0100 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] arm64: dts: qcom: monaco: Reserve full Gunyah metadata region To: Loic Poulain , andersson@kernel.org, konradybcio@kernel.org Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, quic_jingyw@quicinc.com References: <20260302142603.1113355-1-loic.poulain@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260302142603.1113355-1-loic.poulain@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=Pe7yRyhd c=1 sm=1 tr=0 ts=69a5a364 cx=c_pps a=HLyN3IcIa5EE8TELMZ618Q==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=3WHJM1ZQz_JShphwDgj5:22 a=EUspDBNiAAAA:8 a=nWub8vrOtRhPMQg-7rEA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=bTQJ7kPSJx9SKPbeHEYW:22 X-Proofpoint-ORIG-GUID: EvWgh05JLV65qiKMOd9t0PwfHLosRFJK X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzAyMDEyNCBTYWx0ZWRfX2HqfI3aeN2YD Ym/VceVHuwN3B9UEuE33c5sGKtuM9aQh0EnUWpesCRDDQwXA81++QZCTstdf82ZKroh7RI2aCo7 d2vpC+pf84TwMqKxCBrsDzG3Eme6J9blBp7Ul/q7m+V0K0MldLxtpbGc6Jgrc3GPRsZpIRBJNIP e9dpe6htovocjCTtd3JDTaHtbZvB7FnU8ZkzMFKypooPHkLMy5AKJgqaWKiA5wx9zjUoZZB+kHZ lpZERsH6p4i7QLyX8oBoZIA9pf5ylp3kAqkWFFwUnab0Q3CUAhck2mDaX3cRivTghJafBqErAeI RqwlIjgFMMjCeR9HAOTefiBucs8eqdaunDGIcMRWXxlH3f392fI9CE76D4lGUzx3F9ScR8UdX6U Fl2lZP5yInaFChmOSSlApyOE/gqnAXnG3Qf7RfMtqHpkkm8mC0WGzwQl9uEPAplZhrl9jtbiOur yNpXU9olDwY8WNe0BJQ== X-Proofpoint-GUID: EvWgh05JLV65qiKMOd9t0PwfHLosRFJK X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-02_03,2026-03-02_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 suspectscore=0 impostorscore=0 priorityscore=1501 spamscore=0 adultscore=0 bulkscore=0 lowpriorityscore=0 phishscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603020124 On 3/2/26 3:26 PM, Loic Poulain wrote: > We observe spurious "Synchronous External Abort" exceptions > (ESR=0x96000010) and kernel crashes on Monaco-based platforms. > These faults are caused by the kernel inadvertently accessing > hypervisor-owned memory that is not properly marked as reserved. > > From boot log, The Qualcomm hypervisor reports the memory range > at 0x91a80000 of size 0x80000 (512 KiB) as hypervisor-owned: > qhee_hyp_assign_remove_memory: 0x91a80000/0x80000 -> ret 0 > > However, the EFI memory map provided by firmware only reserves the > subrange 0x91a40000–0x91a87fff (288 KiB). The remaining portion > (0x91a88000–0x91afffff) is incorrectly reported as conventional > memory (from efi debug): > efi: 0x000091a40000-0x000091a87fff [Reserved...] > efi: 0x000091a88000-0x0000938fffff [Conventional...] Please file a bug report with the boot folks Reviewed-by: Konrad Dybcio Konrad