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From:   "Michael Kelley (LINUX)" <mikelley@microsoft.com>
To:     Tianyu Lan <ltykernel@gmail.com>,
        KY Srinivasan <kys@microsoft.com>,
        Haiyang Zhang <haiyangz@microsoft.com>,
        "wei.liu@kernel.org" <wei.liu@kernel.org>,
        Dexuan Cui <decui@microsoft.com>,
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CC:     Tianyu Lan <Tianyu.Lan@microsoft.com>,
        "linux-arch@vger.kernel.org" <linux-arch@vger.kernel.org>,
        "linux-hyperv@vger.kernel.org" <linux-hyperv@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "vkuznets@redhat.com" <vkuznets@redhat.com>
Subject: RE: [PATCH V2 6/9] clocksource: hyper-v: Mark hyperv tsc page
 unencrypted in sev-snp enlightened guest
Thread-Topic: [PATCH V2 6/9] clocksource: hyper-v: Mark hyperv tsc page
 unencrypted in sev-snp enlightened guest
Thread-Index: AQHZqKaxbIc0XKeOf0CmrSq2VdhFnK+ps9bA
Date:   Tue, 4 Jul 2023 14:19:59 +0000
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References: <20230627032248.2170007-1-ltykernel@gmail.com>
 <20230627032248.2170007-7-ltykernel@gmail.com>
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From: Tianyu Lan <ltykernel@gmail.com> Sent: Monday, June 26, 2023 8:23 PM
>=20
> Hyper-V tsc page is shared with hypervisor and mark the page
> unencrypted in sev-snp enlightened guest when it's used.
>=20
> Signed-off-by: Tianyu Lan <tiala@microsoft.com>
> ---
>  drivers/clocksource/hyperv_timer.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>=20
> diff --git a/drivers/clocksource/hyperv_timer.c b/drivers/clocksource/hyp=
erv_timer.c
> index bcd9042a0c9f..66e29a19770b 100644
> --- a/drivers/clocksource/hyperv_timer.c
> +++ b/drivers/clocksource/hyperv_timer.c
> @@ -376,7 +376,7 @@ EXPORT_SYMBOL_GPL(hv_stimer_global_cleanup);
>  static union {
>  	struct ms_hyperv_tsc_page page;
>  	u8 reserved[PAGE_SIZE];
> -} tsc_pg __aligned(PAGE_SIZE);
> +} tsc_pg __bss_decrypted __aligned(PAGE_SIZE);
>=20
>  static struct ms_hyperv_tsc_page *tsc_page =3D &tsc_pg.page;
>  static unsigned long tsc_pfn;
> --
> 2.25.1

Reviewed-by: Michael Kelley <mikelley@microsoft.com>