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authorChristoffer Dall <christoffer.dall@arm.com>2019-02-19 14:04:30 +0100
committerMarc Zyngier <marc.zyngier@arm.com>2019-02-19 21:05:42 +0000
commit9e01dc76be6a3b5768cb02130d2ff0055a68809a (patch)
tree6763096554b5c4143f49ee0653faf5a1d7761fca /include
parente604dd5d45c75c2112424dec74853efb708f4fa6 (diff)
downloadlinux-0-day-9e01dc76be6a3b5768cb02130d2ff0055a68809a.tar.gz
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KVM: arm/arm64: arch_timer: Assign the phys timer on VHE systems
VHE systems don't have to emulate the physical timer, we can simply assign the EL1 physical timer directly to the VM as the host always uses the EL2 timers. In order to minimize the amount of cruft, AArch32 gets definitions for the physical timer too, but is should be generally unused on this architecture. Co-written with Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@arm.com>
Diffstat (limited to 'include')
-rw-r--r--include/kvm/arm_arch_timer.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/kvm/arm_arch_timer.h b/include/kvm/arm_arch_timer.h
index ab835112204d2..6d4a33a9c45a2 100644
--- a/include/kvm/arm_arch_timer.h
+++ b/include/kvm/arm_arch_timer.h
@@ -50,6 +50,10 @@ struct arch_timer_context {
/* Emulated Timer (may be unused) */
struct hrtimer hrtimer;
+
+ /* Duplicated state from arch_timer.c for convenience */
+ u32 host_timer_irq;
+ u32 host_timer_irq_flags;
};
struct arch_timer_cpu {
@@ -104,6 +108,8 @@ bool kvm_arch_timer_get_input_level(int vintid);
#define vcpu_vtimer(v) (&(v)->arch.timer_cpu.timers[TIMER_VTIMER])
#define vcpu_ptimer(v) (&(v)->arch.timer_cpu.timers[TIMER_PTIMER])
+#define arch_timer_ctx_index(ctx) ((ctx) - vcpu_timer((ctx)->vcpu)->timers)
+
u64 kvm_arm_timer_read_sysreg(struct kvm_vcpu *vcpu,
enum kvm_arch_timers tmr,
enum kvm_arch_timer_regs treg);