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Code Issues Releases Wiki Activity

RISC-V: KVM: Increment firmware pmu events

Browse source 
KVM supports firmware events now. Invoke the firmware event increment
function from appropriate places.

Reviewed-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Atish Patra <atishp@rivosinc.com>
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Atish Patra 2023-02-07 01:55:29 -08:00 committed by Anup Patel
parent badc386869
commit c39cea6f38
2 changed files with 11 additions and 0 deletions
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4
arch/riscv/kvm/tlb.c
View file

@ -181,6 +181,7 @@ void kvm_riscv_local_tlb_sanitize(struct kvm_vcpu *vcpu)
void kvm_riscv_fence_i_process(struct kvm_vcpu *vcpu)
{
kvm_riscv_vcpu_pmu_incr_fw(vcpu, SBI_PMU_FW_FENCE_I_RCVD);
local_flush_icache_all();
}
@ -264,15 +265,18 @@ void kvm_riscv_hfence_process(struct kvm_vcpu *vcpu)
d.addr, d.size, d.order);
break;
case KVM_RISCV_HFENCE_VVMA_ASID_GVA:
kvm_riscv_vcpu_pmu_incr_fw(vcpu, SBI_PMU_FW_HFENCE_VVMA_ASID_RCVD);
kvm_riscv_local_hfence_vvma_asid_gva(
READ_ONCE(v->vmid), d.asid,
d.addr, d.size, d.order);
break;
case KVM_RISCV_HFENCE_VVMA_ASID_ALL:
kvm_riscv_vcpu_pmu_incr_fw(vcpu, SBI_PMU_FW_HFENCE_VVMA_ASID_RCVD);
kvm_riscv_local_hfence_vvma_asid_all(
READ_ONCE(v->vmid), d.asid);
break;
case KVM_RISCV_HFENCE_VVMA_GVA:
kvm_riscv_vcpu_pmu_incr_fw(vcpu, SBI_PMU_FW_HFENCE_VVMA_RCVD);
kvm_riscv_local_hfence_vvma_gva(
READ_ONCE(v->vmid),
d.addr, d.size, d.order);

7
arch/riscv/kvm/vcpu_sbi_replace.c
View file

@ -11,6 +11,7 @@
#include <linux/kvm_host.h>
#include <asm/sbi.h>
#include <asm/kvm_vcpu_timer.h>
#include <asm/kvm_vcpu_pmu.h>
#include <asm/kvm_vcpu_sbi.h>
static int kvm_sbi_ext_time_handler(struct kvm_vcpu *vcpu, struct kvm_run *run,
@ -24,6 +25,7 @@ static int kvm_sbi_ext_time_handler(struct kvm_vcpu *vcpu, struct kvm_run *run,
return 0;
}
kvm_riscv_vcpu_pmu_incr_fw(vcpu, SBI_PMU_FW_SET_TIMER);
#if __riscv_xlen == 32
next_cycle = ((u64)cp->a1 << 32) | (u64)cp->a0;
#else
@ -55,6 +57,7 @@ static int kvm_sbi_ext_ipi_handler(struct kvm_vcpu *vcpu, struct kvm_run *run,
return 0;
}
kvm_riscv_vcpu_pmu_incr_fw(vcpu, SBI_PMU_FW_IPI_SENT);
kvm_for_each_vcpu(i, tmp, vcpu->kvm) {
if (hbase != -1UL) {
if (tmp->vcpu_id < hbase)
@ -65,6 +68,7 @@ static int kvm_sbi_ext_ipi_handler(struct kvm_vcpu *vcpu, struct kvm_run *run,
ret = kvm_riscv_vcpu_set_interrupt(tmp, IRQ_VS_SOFT);
if (ret < 0)
break;
kvm_riscv_vcpu_pmu_incr_fw(tmp, SBI_PMU_FW_IPI_RCVD);
}
return ret;
@ -87,6 +91,7 @@ static int kvm_sbi_ext_rfence_handler(struct kvm_vcpu *vcpu, struct kvm_run *run
switch (funcid) {
case SBI_EXT_RFENCE_REMOTE_FENCE_I:
kvm_riscv_fence_i(vcpu->kvm, hbase, hmask);
kvm_riscv_vcpu_pmu_incr_fw(vcpu, SBI_PMU_FW_FENCE_I_SENT);
break;
case SBI_EXT_RFENCE_REMOTE_SFENCE_VMA:
if (cp->a2 == 0 && cp->a3 == 0)
@ -94,6 +99,7 @@ static int kvm_sbi_ext_rfence_handler(struct kvm_vcpu *vcpu, struct kvm_run *run
else
kvm_riscv_hfence_vvma_gva(vcpu->kvm, hbase, hmask,
cp->a2, cp->a3, PAGE_SHIFT);
kvm_riscv_vcpu_pmu_incr_fw(vcpu, SBI_PMU_FW_HFENCE_VVMA_SENT);
break;
case SBI_EXT_RFENCE_REMOTE_SFENCE_VMA_ASID:
if (cp->a2 == 0 && cp->a3 == 0)
@ -104,6 +110,7 @@ static int kvm_sbi_ext_rfence_handler(struct kvm_vcpu *vcpu, struct kvm_run *run
hbase, hmask,
cp->a2, cp->a3,
PAGE_SHIFT, cp->a4);
kvm_riscv_vcpu_pmu_incr_fw(vcpu, SBI_PMU_FW_HFENCE_VVMA_ASID_SENT);
break;
case SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA:
case SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA_VMID: