6.10-stable review patch. If anyone has any objections, please let me know.
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From: Huacai Chen chenhuacai@loongson.cn
This reverts commit 05969a6944713f159e8f28be2388500174521818 which is commit 4956e07f05e239b274d042618a250c9fa3e92629 upstream.
LoongArch's PV steal time support is add after 6.10, so 6.10.y doesn't need this fix.
Signed-off-by: Huacai Chen chenhuacai@loongson.cn Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/loongarch/include/asm/kvm_vcpu.h | 1 + arch/loongarch/kvm/timer.c | 7 +++++++ arch/loongarch/kvm/vcpu.c | 2 +- 3 files changed, 9 insertions(+), 1 deletion(-)
--- a/arch/loongarch/include/asm/kvm_vcpu.h +++ b/arch/loongarch/include/asm/kvm_vcpu.h @@ -76,6 +76,7 @@ static inline void kvm_restore_lasx(stru #endif
void kvm_init_timer(struct kvm_vcpu *vcpu, unsigned long hz); +void kvm_reset_timer(struct kvm_vcpu *vcpu); void kvm_save_timer(struct kvm_vcpu *vcpu); void kvm_restore_timer(struct kvm_vcpu *vcpu);
--- a/arch/loongarch/kvm/timer.c +++ b/arch/loongarch/kvm/timer.c @@ -188,3 +188,10 @@ void kvm_save_timer(struct kvm_vcpu *vcp kvm_save_hw_gcsr(csr, LOONGARCH_CSR_ESTAT); preempt_enable(); } + +void kvm_reset_timer(struct kvm_vcpu *vcpu) +{ + write_gcsr_timercfg(0); + kvm_write_sw_gcsr(vcpu->arch.csr, LOONGARCH_CSR_TCFG, 0); + hrtimer_cancel(&vcpu->arch.swtimer); +} --- a/arch/loongarch/kvm/vcpu.c +++ b/arch/loongarch/kvm/vcpu.c @@ -572,7 +572,7 @@ static int kvm_set_one_reg(struct kvm_vc vcpu->kvm->arch.time_offset = (signed long)(v - drdtime()); break; case KVM_REG_LOONGARCH_VCPU_RESET: - vcpu->arch.st.guest_addr = 0; + kvm_reset_timer(vcpu); memset(&vcpu->arch.irq_pending, 0, sizeof(vcpu->arch.irq_pending)); memset(&vcpu->arch.irq_clear, 0, sizeof(vcpu->arch.irq_clear)); break;