From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Loic Poulain <loic.poulain@oss.qualcomm.com>,
andersson@kernel.org, konradybcio@kernel.org
Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
quic_jingyw@quicinc.com
Subject: Re: [PATCH] arm64: dts: qcom: monaco: Reserve full Gunyah metadata region
Date: Mon, 2 Mar 2026 15:49:04 +0100 [thread overview]
Message-ID: <b3538ff1-434b-4249-b4c3-e016feb31f35@oss.qualcomm.com> (raw)
In-Reply-To: <20260302142603.1113355-1-loic.poulain@oss.qualcomm.com>
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.dybcio@oss.qualcomm.com>
Konrad
next prev parent reply other threads:[~2026-03-02 14:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-02 14:26 [PATCH] arm64: dts: qcom: monaco: Reserve full Gunyah metadata region Loic Poulain
2026-03-02 14:31 ` Dmitry Baryshkov
2026-03-02 14:49 ` Konrad Dybcio [this message]
2026-03-18 14:34 ` Bjorn Andersson
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