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authorMichael Ellerman <mpe@ellerman.id.au>2022-10-31 17:37:21 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2022-10-31 17:37:21 +1100
commitf98b4d13717a58b15c00880d2ccd24972316b430 (patch)
treec3b50090ee3ef4b15b7874ae237d76710108674c /arch/riscv/kvm/vcpu_timer.c
parent65722736c3baf29e02e964a09e85c9ef71c48e8d (diff)
parent247f34f7b80357943234f93f247a1ae6b6c3a740 (diff)
Merge tag 'v6.1-rc2' into fixes
Merge rc2 into our fixes branch, which was based on rc1 but wasn't merged until rc3, so that for the remainder of the release our fixes branch will be based on rc2 for the purposes of resolving conflicts with other trees (if necessary).
Diffstat (limited to 'arch/riscv/kvm/vcpu_timer.c')
-rw-r--r--arch/riscv/kvm/vcpu_timer.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/arch/riscv/kvm/vcpu_timer.c b/arch/riscv/kvm/vcpu_timer.c
index 185f2386a747..ad34519c8a13 100644
--- a/arch/riscv/kvm/vcpu_timer.c
+++ b/arch/riscv/kvm/vcpu_timer.c
@@ -320,20 +320,33 @@ void kvm_riscv_vcpu_timer_restore(struct kvm_vcpu *vcpu)
kvm_riscv_vcpu_timer_unblocking(vcpu);
}
-void kvm_riscv_vcpu_timer_save(struct kvm_vcpu *vcpu)
+void kvm_riscv_vcpu_timer_sync(struct kvm_vcpu *vcpu)
{
struct kvm_vcpu_timer *t = &vcpu->arch.timer;
if (!t->sstc_enabled)
return;
- t = &vcpu->arch.timer;
#if defined(CONFIG_32BIT)
t->next_cycles = csr_read(CSR_VSTIMECMP);
t->next_cycles |= (u64)csr_read(CSR_VSTIMECMPH) << 32;
#else
t->next_cycles = csr_read(CSR_VSTIMECMP);
#endif
+}
+
+void kvm_riscv_vcpu_timer_save(struct kvm_vcpu *vcpu)
+{
+ struct kvm_vcpu_timer *t = &vcpu->arch.timer;
+
+ if (!t->sstc_enabled)
+ return;
+
+ /*
+ * The vstimecmp CSRs are saved by kvm_riscv_vcpu_timer_sync()
+ * upon every VM exit so no need to save here.
+ */
+
/* timer should be enabled for the remaining operations */
if (unlikely(!t->init_done))
return;