From: Borislav Petkov <bp@alien8.de>
To: Dongli Si <kvmx86@gmail.com>
Cc: peterz@infradead.org, joerg.roedel@amd.com,
liam.merwick@oracle.com, kim.phillips@amd.com, mingo@kernel.org,
acme@kernel.org, mark.rutland@arm.com,
alexander.shishkin@linux.intel.com, jolsa@kernel.org,
namhyung@kernel.org, tglx@linutronix.de,
dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3] perf/x86/amd: Don't touch the Host-only bit inside the guest hypervisor
Date: Wed, 16 Mar 2022 19:29:56 +0100 [thread overview]
Message-ID: <YjIspMR0lm6+W/Pp@zn.tnic> (raw)
In-Reply-To: <20220314042254.1487836-1-sidongli1997@gmail.com>
On Mon, Mar 14, 2022 at 12:22:54PM +0800, Dongli Si wrote:
> diff --git a/arch/x86/include/asm/hypervisor.h b/arch/x86/include/asm/hypervisor.h
> index e41cbf2ec41d..fcc66c23cc72 100644
> --- a/arch/x86/include/asm/hypervisor.h
> +++ b/arch/x86/include/asm/hypervisor.h
> @@ -73,11 +73,21 @@ static inline bool hypervisor_is_type(enum x86_hypervisor_type type)
> {
> return x86_hyper_type == type;
> }
> +
> +static inline bool run_as_host(void)
> +{
> + return hypervisor_is_type(X86_HYPER_NATIVE);
> +}
What's the point of this "wrapper"?
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2022-03-16 18:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-14 4:22 Dongli Si
2022-03-16 18:29 ` Borislav Petkov [this message]
2022-03-18 3:07 ` Dongli Si
2022-03-18 18:50 ` Borislav Petkov
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