From: Mark Brown <broonie@kernel.org>
To: Jiakai Xu <xujiakai2025@iscas.ac.cn>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-kselftest@vger.kernel.org,
Andrew Jones <andrew.jones@oss.qualcomm.com>,
Anup Patel <anup@brainfault.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Shuah Khan <shuah@kernel.org>, Jiakai Xu <jiakaiPeanut@gmail.com>
Subject: Re: [PATCH] KVM: arm64: Add memslot for ST_GPA_BASE in check_steal_time_uapi()
Date: Thu, 7 May 2026 10:35:07 +0900 [thread overview]
Message-ID: <afvsSxLDBz6HDkCs@sirena.co.uk> (raw)
In-Reply-To: <20260501021639.2563219-1-xujiakai2025@iscas.ac.cn>
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On Fri, May 01, 2026 at 02:16:39AM +0000, Jiakai Xu wrote:
> The refactored check_steal_time_uapi() creates a temporary VM via
> vm_create_with_one_vcpu(), whose default memslot0 only covers GPA
> 0..~2MB. Setting st_ipa to ST_GPA_BASE (1 << 30) causes
> kvm_arm_pvtime_set_attr() to fail with EINVAL because gfn_to_hva()
> cannot find a valid memslot at the target GFN.
Tested-by: Mark Brown <broonie@kernel.org>
It'd be good to get this merged, this is a mainline regression.
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next prev parent reply other threads:[~2026-05-07 1:35 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-01 2:16 [PATCH] KVM: arm64: Add memslot for ST_GPA_BASE in check_steal_time_uapi() Jiakai Xu
2026-05-07 1:35 ` Mark Brown [this message]
2026-05-12 1:59 ` Mark Brown
2026-05-12 1:59 ` Mark Brown
2026-05-12 2:49 ` Zenghui Yu
2026-05-12 2:49 ` Zenghui Yu
2026-05-12 10:39 ` Mark Brown
2026-05-12 10:39 ` Mark Brown
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