From: "Nikunj A. Dadhania" <nikunj@amd.com>
To: Thomas Gleixner <tglx@linutronix.de>,
Sean Christopherson <seanjc@google.com>
Cc: linux-kernel@vger.kernel.org, thomas.lendacky@amd.com,
bp@alien8.de, x86@kernel.org, kvm@vger.kernel.org,
mingo@redhat.com, dave.hansen@linux.intel.com, pgonda@google.com,
pbonzini@redhat.com, peterz@infradead.org,
gautham.shenoy@amd.com
Subject: Re: [PATCH v11 19/20] x86/kvmclock: Skip kvmclock when Secure TSC is available
Date: Tue, 1 Oct 2024 20:06:29 +0530 [thread overview]
Message-ID: <a2733ac2-2a44-49da-18b4-ea905b439840@amd.com> (raw)
In-Reply-To: <156dc1ab-1239-0508-1161-ab0cd13d35b1@amd.com>
On 10/1/2024 9:56 AM, Nikunj A. Dadhania wrote:
> Also I realized that, for the guests, instead of rdtsc(), we should be
> calling rdtsc_ordered() to make sure that time moves forward even when
> vCPUs are migrated.
The above is with reference to native_sched_clock() being used for VM
instead of kvm_sched_clock_read() when using TSC.
Regards
Nikunj
next prev parent reply other threads:[~2024-10-01 14:36 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-31 15:07 [PATCH v11 00/20] Add Secure TSC support for SNP guests Nikunj A Dadhania
2024-07-31 15:07 ` [PATCH v11 01/20] virt: sev-guest: Replace dev_dbg with pr_debug Nikunj A Dadhania
2024-07-31 15:07 ` [PATCH v11 02/20] virt: sev-guest: Rename local guest message variables Nikunj A Dadhania
2024-09-13 17:22 ` Tom Lendacky
2024-07-31 15:07 ` [PATCH v11 03/20] virt: sev-guest: Fix user-visible strings Nikunj A Dadhania
2024-09-13 17:26 ` Tom Lendacky
2024-07-31 15:07 ` [PATCH v11 04/20] virt: sev-guest: Ensure the SNP guest messages do not exceed a page Nikunj A Dadhania
2024-07-31 15:07 ` [PATCH v11 05/20] virt: sev-guest: Use AES GCM crypto library Nikunj A Dadhania
2024-07-31 15:07 ` [PATCH v11 06/20] x86/sev: Handle failures from snp_init() Nikunj A Dadhania
2024-08-27 11:32 ` Borislav Petkov
2024-08-28 4:47 ` Nikunj A. Dadhania
2024-08-28 9:49 ` Borislav Petkov
2024-08-28 10:16 ` Nikunj A. Dadhania
2024-08-28 10:23 ` Borislav Petkov
2024-07-31 15:07 ` [PATCH v11 07/20] x86/sev: Cache the secrets page address Nikunj A Dadhania
2024-07-31 15:07 ` [PATCH v11 08/20] virt: sev-guest: Consolidate SNP guest messaging parameters to a struct Nikunj A Dadhania
2024-09-04 14:31 ` Borislav Petkov
2024-09-05 4:35 ` Nikunj A. Dadhania
2024-07-31 15:08 ` [PATCH v11 09/20] virt: sev-guest: Reduce the scope of SNP command mutex Nikunj A Dadhania
2024-09-12 21:54 ` Tom Lendacky
2024-09-13 4:26 ` Nikunj A. Dadhania
2024-09-13 14:06 ` Tom Lendacky
2024-07-31 15:08 ` [PATCH v11 10/20] virt: sev-guest: Carve out SNP message context structure Nikunj A Dadhania
2024-09-13 15:52 ` Tom Lendacky
2024-07-31 15:08 ` [PATCH v11 11/20] x86/sev: Carve out and export SNP guest messaging init routines Nikunj A Dadhania
2024-09-13 15:53 ` Tom Lendacky
2024-07-31 15:08 ` [PATCH v11 12/20] x86/sev: Relocate SNP guest messaging routines to common code Nikunj A Dadhania
2024-09-13 16:27 ` Tom Lendacky
2024-09-16 4:42 ` Nikunj A. Dadhania
2024-07-31 15:08 ` [PATCH v11 13/20] x86/cc: Add CC_ATTR_GUEST_SECURE_TSC Nikunj A Dadhania
2024-09-13 15:21 ` Tom Lendacky
2024-09-16 4:53 ` Nikunj A. Dadhania
2024-07-31 15:08 ` [PATCH v11 14/20] x86/sev: Add Secure TSC support for SNP guests Nikunj A Dadhania
2024-09-13 16:29 ` Tom Lendacky
2024-07-31 15:08 ` [PATCH v11 15/20] x86/sev: Change TSC MSR behavior for Secure TSC enabled guests Nikunj A Dadhania
2024-07-31 15:08 ` [PATCH v11 16/20] x86/sev: Prevent RDTSC/RDTSCP interception " Nikunj A Dadhania
2024-09-13 16:49 ` Tom Lendacky
2024-07-31 15:08 ` [PATCH v11 17/20] x86/sev: Allow Secure TSC feature for SNP guests Nikunj A Dadhania
2024-09-13 16:53 ` Tom Lendacky
2024-09-16 6:23 ` Nikunj A. Dadhania
2024-07-31 15:08 ` [PATCH v11 18/20] x86/sev: Mark Secure TSC as reliable clocksource Nikunj A Dadhania
2024-09-13 16:59 ` Tom Lendacky
2024-07-31 15:08 ` [PATCH v11 19/20] x86/kvmclock: Skip kvmclock when Secure TSC is available Nikunj A Dadhania
2024-09-13 17:19 ` Tom Lendacky
2024-09-13 17:30 ` Sean Christopherson
2024-09-16 15:20 ` Nikunj A. Dadhania
2024-09-18 12:07 ` Sean Christopherson
2024-09-20 5:15 ` Nikunj A. Dadhania
2024-09-20 7:21 ` Sean Christopherson
2024-09-20 8:54 ` Nikunj A. Dadhania
2024-09-25 8:53 ` Nikunj A. Dadhania
2024-09-25 12:55 ` Sean Christopherson
2024-09-30 6:27 ` Nikunj A. Dadhania
2024-09-30 21:20 ` Thomas Gleixner
2024-10-01 4:26 ` Nikunj A. Dadhania
2024-10-01 14:36 ` Nikunj A. Dadhania [this message]
2024-07-31 15:08 ` [PATCH v11 20/20] x86/cpu/amd: Do not print FW_BUG for Secure TSC Nikunj A Dadhania
2024-09-13 17:21 ` Tom Lendacky
2024-09-13 17:42 ` Jim Mattson
2024-09-16 11:40 ` Nikunj A. Dadhania
2024-09-16 20:21 ` Jim Mattson
2024-08-14 4:14 ` [PATCH v11 00/20] Add Secure TSC support for SNP guests Nikunj A. Dadhania
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