From: Tom Lendacky <thomas.lendacky@amd.com>
To: John Allen <john.allen@amd.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
x86@kernel.org, seanjc@google.com, pbonzini@redhat.com,
dave.hansen@intel.com
Cc: rick.p.edgecombe@intel.com, mlevitsk@redhat.com,
weijiang.yang@intel.com, chao.gao@intel.com, bp@alien8.de,
dave.hansen@linux.intel.com, hpa@zytor.com, mingo@redhat.com,
tglx@linutronix.de
Subject: Re: [PATCH 1/2] x86/boot: Move boot_*msr helpers to asm/shared/msr.h
Date: Fri, 8 Aug 2025 13:07:07 -0500 [thread overview]
Message-ID: <5425721a-b33f-4309-abae-a1687ad55f41@amd.com> (raw)
In-Reply-To: <20250806204659.59099-2-john.allen@amd.com>
On 8/6/25 15:46, John Allen wrote:
> The boot_rdmsr and boot_wrmsr helpers used to reduce the need for inline
> assembly in the boot kernel can also be useful in code shared by boot
> and run-time kernel code. Move these helpers to asm/shared/msr.h and
> rename to raw_rdmsr and raw_wrmsr to indicate that these may also be
> used outside of the boot kernel.
>
> Signed-off-by: John Allen <john.allen@amd.com>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
> ---
> arch/x86/boot/compressed/sev.c | 7 ++++---
> arch/x86/boot/compressed/sev.h | 6 +++---
> arch/x86/boot/cpucheck.c | 16 ++++++++--------
> arch/x86/boot/msr.h | 26 --------------------------
> arch/x86/include/asm/shared/msr.h | 15 +++++++++++++++
> 5 files changed, 30 insertions(+), 40 deletions(-)
> delete mode 100644 arch/x86/boot/msr.h
>
next prev parent reply other threads:[~2025-08-08 18:07 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-06 20:46 [PATCH 0/2] Support for SEV-ES guest shadow stack John Allen
2025-08-06 20:46 ` [PATCH 1/2] x86/boot: Move boot_*msr helpers to asm/shared/msr.h John Allen
2025-08-08 18:07 ` Tom Lendacky [this message]
2025-08-06 20:46 ` [PATCH 2/2] x86/sev-es: Include XSS value in GHCB CPUID request John Allen
2025-08-08 18:13 ` Tom Lendacky
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