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Diffstat (limited to 'arch/riscv/kvm/vcpu.c')
-rw-r--r--arch/riscv/kvm/vcpu.c27
1 files changed, 14 insertions, 13 deletions
diff --git a/arch/riscv/kvm/vcpu.c b/arch/riscv/kvm/vcpu.c
index 82229db1ce73..c5eccc798e70 100644
--- a/arch/riscv/kvm/vcpu.c
+++ b/arch/riscv/kvm/vcpu.c
@@ -471,31 +471,28 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
return -EINVAL;
}
-static void kvm_riscv_vcpu_update_config(const unsigned long *isa)
+static void kvm_riscv_vcpu_setup_config(struct kvm_vcpu *vcpu)
{
- u64 henvcfg = 0;
+ const unsigned long *isa = vcpu->arch.isa;
+ struct kvm_vcpu_config *cfg = &vcpu->arch.cfg;
if (riscv_isa_extension_available(isa, SVPBMT))
- henvcfg |= ENVCFG_PBMTE;
+ cfg->henvcfg |= ENVCFG_PBMTE;
if (riscv_isa_extension_available(isa, SSTC))
- henvcfg |= ENVCFG_STCE;
+ cfg->henvcfg |= ENVCFG_STCE;
if (riscv_isa_extension_available(isa, ZICBOM))
- henvcfg |= (ENVCFG_CBIE | ENVCFG_CBCFE);
+ cfg->henvcfg |= (ENVCFG_CBIE | ENVCFG_CBCFE);
if (riscv_isa_extension_available(isa, ZICBOZ))
- henvcfg |= ENVCFG_CBZE;
-
- csr_write(CSR_HENVCFG, henvcfg);
-#ifdef CONFIG_32BIT
- csr_write(CSR_HENVCFGH, henvcfg >> 32);
-#endif
+ cfg->henvcfg |= ENVCFG_CBZE;
}
void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
{
struct kvm_vcpu_csr *csr = &vcpu->arch.guest_csr;
+ struct kvm_vcpu_config *cfg = &vcpu->arch.cfg;
csr_write(CSR_VSSTATUS, csr->vsstatus);
csr_write(CSR_VSIE, csr->vsie);
@@ -506,8 +503,9 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
csr_write(CSR_VSTVAL, csr->vstval);
csr_write(CSR_HVIP, csr->hvip);
csr_write(CSR_VSATP, csr->vsatp);
-
- kvm_riscv_vcpu_update_config(vcpu->arch.isa);
+ csr_write(CSR_HENVCFG, cfg->henvcfg);
+ if (IS_ENABLED(CONFIG_32BIT))
+ csr_write(CSR_HENVCFGH, cfg->henvcfg >> 32);
kvm_riscv_gstage_update_hgatp(vcpu);
@@ -627,6 +625,9 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu)
struct kvm_cpu_trap trap;
struct kvm_run *run = vcpu->run;
+ if (!vcpu->arch.ran_atleast_once)
+ kvm_riscv_vcpu_setup_config(vcpu);
+
/* Mark this VCPU ran at least once */
vcpu->arch.ran_atleast_once = true;