linux-kernel - Re: [PATCH v2] arm64: KVM: define ESR_ELx_EC

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Message-Id: <172598897949.2321375.16307784891758642562.b4-ty@kernel.org>
Date: Tue, 10 Sep 2024 20:03:34 +0100
From: Will Deacon <will@...nel.org>
To: Marc Zyngier <maz@...nel.org>,
	Anastasia Belova <abelova@...ralinux.ru>
Cc: catalin.marinas@....com,
	kernel-team@...roid.com,
	Will Deacon <will@...nel.org>,
	Oliver Upton <oliver.upton@...ux.dev>,
	James Morse <james.morse@....com>,
	Suzuki K Poulose <suzuki.poulose@....com>,
	Zenghui Yu <yuzenghui@...wei.com>,
	linux-arm-kernel@...ts.infradead.org,
	kvmarm@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	lvc-project@...uxtesting.org,
	stable@...r.kernel.org
Subject: Re: [PATCH v2] arm64: KVM: define ESR_ELx_EC_* constants as UL

On Tue, 10 Sep 2024 11:50:16 +0300, Anastasia Belova wrote:
> Add explicit casting to prevent expantion of 32th bit of
> u32 into highest half of u64 in several places.
> 
> For example, in inject_abt64:
> ESR_ELx_EC_DABT_LOW << ESR_ELx_EC_SHIFT = 0x24 << 26.
> This operation's result is int with 1 in 32th bit.
> While casting this value into u64 (esr is u64) 1
> fills 32 highest bits.
> 
> [...]

Applied to arm64 (for-next/misc), thanks!

[1/1] arm64: KVM: define ESR_ELx_EC_* constants as UL
      https://git.kernel.org/arm64/c/b6db3eb6c373

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev