From: Jan Kiszka <jan.kiszka@siemens.com>
To: x86 <x86@kernel.org>, Thomas Gleixner <tglx@linutronix.de>
Cc: Jailhouse <jailhouse-dev@googlegroups.com>,
Ingo Molnar <mingo@elte.hu>, "H. Peter Anvin" <hpa@zytor.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: [PATCH] x86/jailhouse: Set X86_FEATURE_TSC_KNOWN_FREQ
Date: Fri, 19 Jan 2018 11:06:17 +0100 [thread overview]
Message-ID: <975fbfc9-2a64-cc56-40d5-164992ec3916@siemens.com> (raw)
Otherwise, Linux will not recognize precalibrated_tsc_khz and disable
the tsc as clocksource.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
arch/x86/kernel/jailhouse.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/kernel/jailhouse.c b/arch/x86/kernel/jailhouse.c
index 7ade152133c7..2b7ebbe9043d 100644
--- a/arch/x86/kernel/jailhouse.c
+++ b/arch/x86/kernel/jailhouse.c
@@ -176,6 +176,7 @@ static void __init jailhouse_init_platform(void)
pr_debug("Jailhouse: PM-Timer IO Port: %#x\n", pmtmr_ioport);
precalibrated_tsc_khz = setup_data.tsc_khz;
+ setup_force_cpu_cap(X86_FEATURE_TSC_KNOWN_FREQ);
pci_probe = 0;
next reply other threads:[~2018-01-19 10:06 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-19 10:06 Jan Kiszka [this message]
2018-01-20 7:19 ` [tip:x86/platform] " tip-bot for Jan Kiszka
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