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: linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
linux-hyperv@vger.kernel.org, linux-arch@vger.kernel.org
Subject: [RFC PATCH 08/17] clocksource: hyper-v: decrypt hyperv tsc page in sev-snp enlightened guest
Date: Wed, 9 Nov 2022 15:53:43 -0500 [thread overview]
Message-ID: <20221109205353.984745-9-ltykernel@gmail.com> (raw)
In-Reply-To: <20221109205353.984745-1-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>
---
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
next prev parent reply other threads:[~2022-11-09 20:54 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-09 20:53 [RFC PATCH 00/17] x86/hyperv/sev: Add AMD sev-snp enlightened guest support on hyperv Tianyu Lan
2022-11-09 20:53 ` [RFC PATCH 01/17] x86/boot: Check boot param's cc_blob_address for direct boot mode Tianyu Lan
2022-11-09 23:39 ` Michael Roth
2022-11-10 15:01 ` Tianyu Lan
2022-11-09 20:53 ` [RFC PATCH 02/17] x86/sev: Pvalidate memory gab for decompressing kernel Tianyu Lan
2022-11-09 20:53 ` [RFC PATCH 03/17] x86/hyperv: Add sev-snp enlightened guest specific config Tianyu Lan
2022-11-09 20:53 ` [RFC PATCH 04/17] x86/hyperv: apic change for sev-snp enlightened guest Tianyu Lan
2022-11-09 20:53 ` [RFC PATCH 05/17] x86/hyperv: Decrypt hv vp assist page in " Tianyu Lan
2022-11-09 20:53 ` [RFC PATCH 06/17] x86/hyperv: Get Virtual Trust Level via hvcall Tianyu Lan
2022-11-09 20:53 ` [RFC PATCH 07/17] x86/hyperv: Use vmmcall to implement hvcall in sev-snp enlightened guest Tianyu Lan
2022-11-09 20:53 ` Tianyu Lan [this message]
2022-11-09 20:53 ` [RFC PATCH 09/17] x86/hyperv: decrypt vmbus pages for " Tianyu Lan
2022-11-09 20:53 ` [RFC PATCH 10/17] x86/hyperv: set target vtl in the vmbus init message Tianyu Lan
2022-11-09 20:53 ` [RFC PATCH 11/17] drivers: hv: Decrypt percpu hvcall input arg page in sev-snp enlightened guest Tianyu Lan
2022-11-09 20:53 ` [RFC PATCH 12/17] Drivers: hv: vmbus: Decrypt vmbus ring buffer Tianyu Lan
2022-11-09 20:53 ` [RFC PATCH 13/17] x86/hyperv: Initialize cpu and memory for sev-snp enlightened guest Tianyu Lan
2022-11-09 20:53 ` [RFC PATCH 14/17] x86/hyperv: Add smp support for sev-snp guest Tianyu Lan
2022-11-09 20:53 ` [RFC PATCH 15/17] x86/hyperv: Add hyperv-specific hadling for VMMCALL under SEV-ES Tianyu Lan
2022-11-09 20:53 ` [RFC PATCH 16/17] x86/sev: Add a #HV exception handler Tianyu Lan
2022-11-10 20:38 ` Kalra, Ashish
2022-11-14 1:28 ` Tianyu Lan
2022-11-09 20:53 ` [RFC PATCH 17/17] x86/sev: Initialize #HV doorbell and handle interrupt requests Tianyu Lan
2022-11-10 21:36 ` Kalra, Ashish
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