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From:   Tianyu Lan <ltykernel@gmail.com>
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Subject: [RFC PATCH V2 07/18] clocksource: hyper-v: decrypt hyperv tsc page in sev-snp enlightened guest
Date:   Fri, 18 Nov 2022 22:46:21 -0500
Message-Id: <20221119034633.1728632-8-ltykernel@gmail.com>
In-Reply-To: <20221119034633.1728632-1-ltykernel@gmail.com>
References: <20221119034633.1728632-1-ltykernel@gmail.com>
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From: Tianyu Lan <tiala@microsoft.com>

Hyper-V tsc page is shared with hypervisor and it should be decrypted
in sev-snp enlightened guest when it's used.

Signed-off-by: Tianyu Lan <tiala@microsoft.com>
---
 drivers/clocksource/hyperv_timer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clocksource/hyperv_timer.c b/drivers/clocksource/hyperv_timer.c
index bb47610bbd1c..aa68eebed5ee 100644
--- a/drivers/clocksource/hyperv_timer.c
+++ b/drivers/clocksource/hyperv_timer.c
@@ -364,7 +364,7 @@ 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);
 
 struct ms_hyperv_tsc_page *hv_get_tsc_page(void)
 {
-- 
2.25.1