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From: Avi Kivity <avi@redhat.com>
To: kvm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, Eduardo Habkost <ehabkost@redhat.com>
Subject: [PATCH 36/36] x86: KVM guest: kvm_get_tsc_khz: return khz, not lpj
Date: Sun, 14 Dec 2008 10:07:09 +0200	[thread overview]
Message-ID: <1229242029-13410-37-git-send-email-avi@redhat.com> (raw)
In-Reply-To: <1229242029-13410-1-git-send-email-avi@redhat.com>

From: Eduardo Habkost <ehabkost@redhat.com>

kvm_get_tsc_khz() currently returns the previously-calculated preset_lpj
value, but it is in loops-per-jiffy, not kHz. The current code works
correctly only when HZ=1000.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 arch/x86/kernel/kvmclock.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index b38e801..652fce6 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -89,17 +89,17 @@ static cycle_t kvm_clock_read(void)
  */
 static unsigned long kvm_get_tsc_khz(void)
 {
-	return preset_lpj;
+	struct pvclock_vcpu_time_info *src;
+	src = &per_cpu(hv_clock, 0);
+	return pvclock_tsc_khz(src);
 }
 
 static void kvm_get_preset_lpj(void)
 {
-	struct pvclock_vcpu_time_info *src;
 	unsigned long khz;
 	u64 lpj;
 
-	src = &per_cpu(hv_clock, 0);
-	khz = pvclock_tsc_khz(src);
+	khz = kvm_get_tsc_khz();
 
 	lpj = ((u64)khz * 1000);
 	do_div(lpj, HZ);
-- 
1.6.0.3


      parent reply	other threads:[~2008-12-14  8:16 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-14  8:06 [PATCH 00/36] KVM Updates for 2.6.29 (part 3 of 3) Avi Kivity
2008-12-14  8:06 ` [PATCH 01/36] KVM: x86 emulator: reduce duplication in one operand emulation thunks Avi Kivity
2008-12-14  8:06 ` [PATCH 02/36] KVM: x86 emulator: consolidate emulation of two operand instructions Avi Kivity
2008-12-14  8:06 ` [PATCH 03/36] KVM: s390: Fix refcounting and allow module unload Avi Kivity
2008-12-14  8:06 ` [PATCH 04/36] KVM: s390: Fix memory leak of vcpu->run Avi Kivity
2008-12-14  8:06 ` [PATCH 05/36] KVM: Prevent trace call into unloaded module text Avi Kivity
2008-12-14  8:06 ` [PATCH 06/36] KVM: x86 emulator: Extract 'pop' sequence into a function Avi Kivity
2008-12-14  8:06 ` [PATCH 07/36] KVM: x86 emulator: allow pop from mmio Avi Kivity
2008-12-14  8:06 ` [PATCH 08/36] KVM: x86 emulator: switch 'pop reg' instruction to emulate_pop() Avi Kivity
2008-12-14  8:06 ` [PATCH 09/36] KVM: x86 emulator: fix ret emulation Avi Kivity
2008-12-14  8:06 ` [PATCH 10/36] KVM: x86 emulator: fix popf emulation Avi Kivity
2008-12-14  8:06 ` [PATCH 11/36] KVM: Remove extraneous semicolon after do/while Avi Kivity
2008-12-14  8:06 ` [PATCH 12/36] KVM: fix sparse warning Avi Kivity
2008-12-14  8:06 ` [PATCH 13/36] KVM: VMX: " Avi Kivity
2008-12-14  8:06 ` [PATCH 14/36] KVM: remove the IRQ ACK notifier assertions Avi Kivity
2008-12-14  8:06 ` [PATCH 15/36] KVM: make kvm_unregister_irq_ack_notifier() safe Avi Kivity
2008-12-14  8:06 ` [PATCH 16/36] KVM: don't fee an unallocated irq source id Avi Kivity
2008-12-14  8:06 ` [PATCH 17/36] KVM: add KVM_USERSPACE_IRQ_SOURCE_ID assertions Avi Kivity
2008-12-14  8:06 ` [PATCH 18/36] KVM: split out kvm_free_assigned_irq() Avi Kivity
2008-12-14  8:06 ` [PATCH 19/36] KVM: ppc: support large host pages Avi Kivity
2008-12-14  8:06 ` [PATCH 20/36] powerpc/44x: declare tlb_44x_index for use in C code Avi Kivity
2008-12-14  8:06 ` [PATCH 21/36] KVM: ppc: directly insert shadow mappings into the hardware TLB Avi Kivity
2008-12-14  8:06 ` [PATCH 22/36] KVM: ppc: save and restore guest mappings on context switch Avi Kivity
2008-12-14  8:06 ` [PATCH 23/36] KVM: ppc: Implement in-kernel exit timing statistics Avi Kivity
2008-12-14  8:06 ` [PATCH 24/36] KVM: ppc: mostly cosmetic updates to the exit timing accounting code Avi Kivity
2008-12-14  8:06 ` [PATCH 25/36] KVM: Really remove a slot when a user ask us so Avi Kivity
2008-12-14  8:06 ` [PATCH 26/36] KVM: x86 emulator: Extend the opcode descriptor Avi Kivity
2008-12-14  8:07 ` [PATCH 27/36] KVM: x86 emulator: add Src2 decode set Avi Kivity
2008-12-14  8:07 ` [PATCH 28/36] KVM: x86 emulator: add a new "implied 1" Src decode type Avi Kivity
2008-12-14  8:07 ` [PATCH 29/36] KVM: x86 emulator: add the assembler code for three operands Avi Kivity
2008-12-14  8:07 ` [PATCH 30/36] KVM: x86 emulator: add the emulation of shld and shrd instructions Avi Kivity
2008-12-14  8:07 ` [PATCH 31/36] KVM: x86 emulator: Fix handling of VMMCALL instruction Avi Kivity
2008-12-14  8:07 ` [PATCH 32/36] KVM: MMU: use page array in unsync walk Avi Kivity
2008-12-14  8:07 ` [PATCH 33/36] KVM: MMU: collapse remote TLB flushes on root sync Avi Kivity
2008-12-14  8:07 ` [PATCH 34/36] KVM: MMU: skip global pgtables on sync due to cr3 switch Avi Kivity
2008-12-14  8:07 ` [PATCH 35/36] KVM: MMU: prepopulate the shadow on invlpg Avi Kivity
2008-12-14  8:07 ` Avi Kivity [this message]

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