From: Tianyu Lan <ltykernel@gmail.com>
To: luto@kernel.org, tglx@linutronix.de, mingo@redhat.com,
bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org,
hpa@zytor.com, seanjc@google.com, pbonzini@redhat.com,
jgross@suse.com, tiala@microsoft.com, kirill@shutemov.name,
jiangshan.ljs@antgroup.com, peterz@infradead.org,
ashish.kalra@amd.com, srutherford@google.com,
akpm@linux-foundation.org, anshuman.khandual@arm.com,
pawan.kumar.gupta@linux.intel.com, adrian.hunter@intel.com,
daniel.sneddon@linux.intel.com,
alexander.shishkin@linux.intel.com, sandipan.das@amd.com,
ray.huang@amd.com, brijesh.singh@amd.com, michael.roth@amd.com,
thomas.lendacky@amd.com, venu.busireddy@oracle.com,
sterritt@google.com, tony.luck@intel.com,
samitolvanen@google.com, fenghua.yu@intel.com
Cc: pangupta@amd.com, linux-kernel@vger.kernel.org,
kvm@vger.kernel.org, linux-hyperv@vger.kernel.org,
linux-arch@vger.kernel.org
Subject: [RFC PATCH V6 09/14] clocksource/drivers/hyper-v: decrypt hyperv tsc page in sev-snp enlightened guest
Date: Mon, 15 May 2023 12:59:11 -0400 [thread overview]
Message-ID: <20230515165917.1306922-10-ltykernel@gmail.com> (raw)
In-Reply-To: <20230515165917.1306922-1-ltykernel@gmail.com>
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>
---
Change since RFC V2:
* Change the Subject line prefix
---
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:[~2023-05-15 17:00 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-15 16:59 [RFC PATCH V6 00/14] x86/hyperv/sev: Add AMD sev-snp enlightened guest support on hyperv Tianyu Lan
2023-05-15 16:59 ` [RFC PATCH V6 01/14] x86/sev: Add a #HV exception handler Tianyu Lan
2023-05-16 9:30 ` Peter Zijlstra
2023-05-17 9:01 ` Tianyu Lan
2023-05-30 12:16 ` Gupta, Pankaj
2023-05-30 14:35 ` Peter Zijlstra
2023-05-30 15:59 ` Tom Lendacky
2023-05-30 18:52 ` Peter Zijlstra
2023-05-30 19:03 ` Dave Hansen
2023-05-31 9:14 ` Peter Zijlstra
2023-06-07 18:19 ` Tom Lendacky
2023-06-06 6:00 ` Gupta, Pankaj
2023-06-06 7:50 ` Peter Zijlstra
2023-05-30 15:18 ` Dave Hansen
2023-05-15 16:59 ` [RFC PATCH V6 02/14] x86/sev: Add Check of #HV event in path Tianyu Lan
2023-05-16 9:32 ` Peter Zijlstra
2023-05-17 9:55 ` Tianyu Lan
2023-05-17 13:09 ` Peter Zijlstra
2023-05-31 14:50 ` Michael Kelley (LINUX)
2023-05-31 15:48 ` Peter Zijlstra
2023-05-31 15:58 ` Michael Kelley (LINUX)
2023-05-15 16:59 ` [RFC PATCH V6 03/14] x86/sev: Add AMD sev-snp enlightened guest support on hyperv Tianyu Lan
2023-05-16 9:40 ` Peter Zijlstra
2023-05-16 15:38 ` Dionna Amalie Glaze
2023-05-15 16:59 ` [RFC PATCH V6 04/14] x86/sev: optimize system vector processing invoked from #HV exception Tianyu Lan
2023-05-16 10:23 ` Peter Zijlstra
2023-05-17 13:28 ` Tianyu Lan
2023-05-15 16:59 ` [RFC PATCH V6 05/14] x86/hyperv: Add sev-snp enlightened guest static key Tianyu Lan
2023-05-15 16:59 ` [RFC PATCH V6 06/14] x86/hyperv: Mark Hyper-V vp assist page unencrypted in SEV-SNP enlightened guest Tianyu Lan
2023-05-15 16:59 ` [RFC PATCH V6 07/14] x86/hyperv: Set Virtual Trust Level in VMBus init message Tianyu Lan
2023-05-15 16:59 ` [RFC PATCH V6 08/14] x86/hyperv: Use vmmcall to implement Hyper-V hypercall in sev-snp enlightened guest Tianyu Lan
2023-05-16 10:29 ` Peter Zijlstra
2023-05-15 16:59 ` Tianyu Lan [this message]
2023-05-15 16:59 ` [RFC PATCH V6 10/14] hv: vmbus: Mask VMBus pages unencrypted for " Tianyu Lan
2023-05-15 16:59 ` [RFC PATCH V6 11/14] drivers: hv: Decrypt percpu hvcall input arg page in " Tianyu Lan
2023-05-15 16:59 ` [RFC PATCH V6 12/14] x86/hyperv: Initialize cpu and memory for " Tianyu Lan
2023-05-15 16:59 ` [RFC PATCH V6 13/14] x86/hyperv: Add smp support for sev-snp guest Tianyu Lan
2023-05-16 5:16 ` [EXTERNAL] " Saurabh Singh Sengar
2023-05-17 8:19 ` Tianyu Lan
2023-05-15 16:59 ` [RFC PATCH V6 14/14] x86/hyperv: Add hyperv-specific handling for VMMCALL under SEV-ES Tianyu Lan
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