From 2278fec1d1064ec1622098153b20a773fb688e78 Mon Sep 17 00:00:00 2001
From: Andreas Sandberg <andreas.sandberg@arm.com>
Date: Sat, 23 May 2015 13:46:53 +0100
Subject: dev, arm: Add virtual timers to the generic timer model

The generic timer model currently does not support virtual
counters. Virtual and physical counters both tick with the same
frequency. However, virtual timers allow a hypervisor to set an offset
that is subtracted from the counter when it is read. This enables the
hypervisor to present a time base that ticks with virtual time in the
VM (i.e., doesn't tick when the VM isn't running). Modern Linux
kernels generally assume that virtual counters exist and try to use
them by default.
---
 src/arch/arm/miscregs.cc | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

(limited to 'src/arch/arm')

diff --git a/src/arch/arm/miscregs.cc b/src/arch/arm/miscregs.cc
index 07d938f6a..729cb4e8b 100644
--- a/src/arch/arm/miscregs.cc
+++ b/src/arch/arm/miscregs.cc
@@ -715,9 +715,9 @@ bitset<NUM_MISCREG_INFOS> miscRegInfo[NUM_MISCREGS] = {
     // MISCREG_CNTP_CTL_S
     bitset<NUM_MISCREG_INFOS>(string("00110011001111100000")),
     // MISCREG_CNTV_TVAL
-    bitset<NUM_MISCREG_INFOS>(string("01111000000000000000")),
+    bitset<NUM_MISCREG_INFOS>(string("11111111111111000001")),
     // MISCREG_CNTV_CTL
-    bitset<NUM_MISCREG_INFOS>(string("01111000000000000000")),
+    bitset<NUM_MISCREG_INFOS>(string("11111111111111000001")),
     // MISCREG_CNTHCTL
     bitset<NUM_MISCREG_INFOS>(string("01001000000000000000")),
     // MISCREG_CNTHP_TVAL
@@ -763,7 +763,7 @@ bitset<NUM_MISCREG_INFOS> miscRegInfo[NUM_MISCREGS] = {
     // MISCREG_CNTP_CVAL_S
     bitset<NUM_MISCREG_INFOS>(string("00110011001111100000")),
     // MISCREG_CNTV_CVAL
-    bitset<NUM_MISCREG_INFOS>(string("01111000000000000000")),
+    bitset<NUM_MISCREG_INFOS>(string("11111111111111000001")),
     // MISCREG_CNTVOFF
     bitset<NUM_MISCREG_INFOS>(string("11001100000000000001")),
     // MISCREG_CNTHP_CVAL
@@ -1259,11 +1259,11 @@ bitset<NUM_MISCREG_INFOS> miscRegInfo[NUM_MISCREGS] = {
     // MISCREG_CNTP_CVAL_EL0
     bitset<NUM_MISCREG_INFOS>(string("11111111111111000001")),
     // MISCREG_CNTV_TVAL_EL0
-    bitset<NUM_MISCREG_INFOS>(string("01111000000000000000")),
+    bitset<NUM_MISCREG_INFOS>(string("11111111111111000001")),
     // MISCREG_CNTV_CTL_EL0
-    bitset<NUM_MISCREG_INFOS>(string("01111000000000000000")),
+    bitset<NUM_MISCREG_INFOS>(string("11111111111111000001")),
     // MISCREG_CNTV_CVAL_EL0
-    bitset<NUM_MISCREG_INFOS>(string("01111000000000000000")),
+    bitset<NUM_MISCREG_INFOS>(string("11111111111111000001")),
     // MISCREG_PMEVCNTR0_EL0
     bitset<NUM_MISCREG_INFOS>(string("11111111111111000001")),
     // MISCREG_PMEVCNTR1_EL0
-- 
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