From: Tianyu Lan <ltykernel@gmail.com>
To: kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org,
decui@microsoft.com, tglx@linutronix.de, mingo@redhat.com,
bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org,
hpa@zytor.com, daniel.lezcano@linaro.org, arnd@arndb.de,
michael.h.kelley@microsoft.com
Cc: Tianyu Lan <tiala@microsoft.com>,
linux-arch@vger.kernel.org, linux-hyperv@vger.kernel.org,
linux-kernel@vger.kernel.org, vkuznets@redhat.com
Subject: [PATCH 6/9] clocksource: hyper-v: Mark hyperv tsc page unencrypted in sev-snp enlightened guest
Date: Thu, 1 Jun 2023 11:16:19 -0400 [thread overview]
Message-ID: <20230601151624.1757616-7-ltykernel@gmail.com> (raw)
In-Reply-To: <20230601151624.1757616-1-ltykernel@gmail.com>
From: Tianyu Lan <tiala@microsoft.com>
Hyper-V tsc page is shared with hypervisor and mark the page
unencrypted 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 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);
static struct ms_hyperv_tsc_page *tsc_page = &tsc_pg.page;
static unsigned long tsc_pfn;
--
2.25.1
next prev parent reply other threads:[~2023-06-01 15:17 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-01 15:16 [PATCH 0/9] x86/hyperv: Add AMD sev-snp enlightened guest support on hyperv Tianyu Lan
2023-06-01 15:16 ` [PATCH 1/9] x86/hyperv: Add sev-snp enlightened guest static key Tianyu Lan
2023-06-05 12:09 ` Vitaly Kuznetsov
2023-06-06 13:43 ` Tianyu Lan
2023-07-18 5:52 ` Tianyu Lan
2023-06-08 12:56 ` Michael Kelley (LINUX)
2023-06-08 13:17 ` Tianyu Lan
2023-06-01 15:16 ` [PATCH 2/9] x86/hyperv: Set Virtual Trust Level in VMBus init message Tianyu Lan
2023-06-08 13:06 ` Michael Kelley (LINUX)
2023-06-08 13:21 ` Tianyu Lan
2023-06-01 15:16 ` [PATCH 3/9] x86/hyperv: Mark Hyper-V vp assist page unencrypted in SEV-SNP enlightened guest Tianyu Lan
2023-06-05 12:13 ` Vitaly Kuznetsov
2023-06-06 15:22 ` Tianyu Lan
2023-06-06 15:49 ` Vitaly Kuznetsov
2023-06-08 13:25 ` Michael Kelley (LINUX)
2023-06-08 13:44 ` Vitaly Kuznetsov
2023-06-01 15:16 ` [PATCH 4/9] drivers: hv: Mark shared pages " Tianyu Lan
2023-06-05 12:54 ` Vitaly Kuznetsov
2023-06-07 8:16 ` Tianyu Lan
2023-06-08 8:54 ` Vitaly Kuznetsov
2023-06-08 14:21 ` Michael Kelley (LINUX)
2023-06-01 15:16 ` [PATCH 5/9] x86/hyperv: Use vmmcall to implement Hyper-V hypercall in sev-snp " Tianyu Lan
2023-06-05 13:00 ` Vitaly Kuznetsov
2023-06-08 13:21 ` Peter Zijlstra
2023-06-08 15:15 ` [EXTERNAL] " Tianyu Lan
2023-06-27 10:57 ` Tianyu Lan
2023-06-27 11:50 ` Peter Zijlstra
2023-06-27 12:05 ` Borislav Petkov
2023-06-27 13:38 ` Peter Zijlstra
2023-06-28 10:53 ` Peter Zijlstra
2023-06-01 15:16 ` Tianyu Lan [this message]
2023-06-01 15:16 ` [PATCH 7/9] x86/hyperv: Initialize cpu and memory for SEV-SNP " Tianyu Lan
2023-06-08 13:51 ` Michael Kelley (LINUX)
2023-06-09 9:56 ` Jeremi Piotrowski
2023-06-08 14:09 ` Michael Kelley (LINUX)
2023-06-08 15:18 ` Tianyu Lan
2023-06-01 15:16 ` [PATCH 8/9] x86/hyperv: Add smp support for SEV-SNP guest Tianyu Lan
2023-06-01 15:16 ` [PATCH 9/9] x86/hyperv: Add hyperv-specific handling for VMMCALL under SEV-ES Tianyu Lan
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