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authorMarc Zyngier <marc.zyngier@arm.com>2013-01-23 13:21:59 -0500
committerMarc Zyngier <marc.zyngier@arm.com>2013-02-11 19:05:38 +0000
commitc7e3ba64ba16eddfbfc66ec099860f40e808e124 (patch)
tree42050cb8efe5233629efaabc3917bad4a22741c8 /arch/arm/include
parent53e724067a4ee9373972079e225d0d5f683b9c5a (diff)
downloadlinux-c7e3ba64ba16eddfbfc66ec099860f40e808e124.tar.gz
ARM: KVM: arch_timers: Add timer world switch
Do the necessary save/restore dance for the timers in the world switch code. In the process, allow the guest to read the physical counter, which is useful for its own clock_event_device. Reviewed-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Christoffer Dall <c.dall@virtualopensystems.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'arch/arm/include')
-rw-r--r--arch/arm/include/asm/kvm_asm.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/include/asm/kvm_asm.h b/arch/arm/include/asm/kvm_asm.h
index 5e06e817778..e4956f4e23e 100644
--- a/arch/arm/include/asm/kvm_asm.h
+++ b/arch/arm/include/asm/kvm_asm.h
@@ -45,7 +45,8 @@
#define c13_TID_URW 23 /* Thread ID, User R/W */
#define c13_TID_URO 24 /* Thread ID, User R/O */
#define c13_TID_PRIV 25 /* Thread ID, Privileged */
-#define NR_CP15_REGS 26 /* Number of regs (incl. invalid) */
+#define c14_CNTKCTL 26 /* Timer Control Register (PL1) */
+#define NR_CP15_REGS 27 /* Number of regs (incl. invalid) */
#define ARM_EXCEPTION_RESET 0
#define ARM_EXCEPTION_UNDEFINED 1