From: Anup Patel <apatel@ventanamicro.com>
To: Paolo Bonzini <pbonzini@redhat.com>, Atish Patra <atishp@atishpatra.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Alistair Francis <Alistair.Francis@wdc.com>,
Anup Patel <anup@brainfault.org>,
kvm@vger.kernel.org, kvm-riscv@lists.infradead.org,
linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
Anup Patel <apatel@ventanamicro.com>
Subject: [PATCH 2/6] RISC-V: KVM: Add common kvm_riscv_vcpu_sbi_system_reset() function
Date: Tue, 1 Feb 2022 13:52:23 +0530 [thread overview]
Message-ID: <20220201082227.361967-3-apatel@ventanamicro.com> (raw)
In-Reply-To: <20220201082227.361967-1-apatel@ventanamicro.com>
We rename kvm_sbi_system_shutdown() to kvm_riscv_vcpu_sbi_system_reset()
and move it to vcpu_sbi.c so that it can be shared by SBI v0.1 shutdown
and SBI v0.3 SRST extension.
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
---
arch/riscv/include/asm/kvm_vcpu_sbi.h | 3 +++
arch/riscv/kvm/vcpu_sbi.c | 17 +++++++++++++++++
arch/riscv/kvm/vcpu_sbi_v01.c | 18 ++----------------
3 files changed, 22 insertions(+), 16 deletions(-)
diff --git a/arch/riscv/include/asm/kvm_vcpu_sbi.h b/arch/riscv/include/asm/kvm_vcpu_sbi.h
index 04cd81f2ab5b..83d6d4d2b1df 100644
--- a/arch/riscv/include/asm/kvm_vcpu_sbi.h
+++ b/arch/riscv/include/asm/kvm_vcpu_sbi.h
@@ -28,6 +28,9 @@ struct kvm_vcpu_sbi_extension {
};
void kvm_riscv_vcpu_sbi_forward(struct kvm_vcpu *vcpu, struct kvm_run *run);
+void kvm_riscv_vcpu_sbi_system_reset(struct kvm_vcpu *vcpu,
+ struct kvm_run *run,
+ u32 type, u64 flags);
const struct kvm_vcpu_sbi_extension *kvm_vcpu_sbi_find_ext(unsigned long extid);
#endif /* __RISCV_KVM_VCPU_SBI_H__ */
diff --git a/arch/riscv/kvm/vcpu_sbi.c b/arch/riscv/kvm/vcpu_sbi.c
index 78aa3db76225..11ae4f621f0d 100644
--- a/arch/riscv/kvm/vcpu_sbi.c
+++ b/arch/riscv/kvm/vcpu_sbi.c
@@ -79,6 +79,23 @@ void kvm_riscv_vcpu_sbi_forward(struct kvm_vcpu *vcpu, struct kvm_run *run)
run->riscv_sbi.ret[1] = cp->a1;
}
+void kvm_riscv_vcpu_sbi_system_reset(struct kvm_vcpu *vcpu,
+ struct kvm_run *run,
+ u32 type, u64 flags)
+{
+ unsigned long i;
+ struct kvm_vcpu *tmp;
+
+ kvm_for_each_vcpu(i, tmp, vcpu->kvm)
+ tmp->arch.power_off = true;
+ kvm_make_all_cpus_request(vcpu->kvm, KVM_REQ_SLEEP);
+
+ memset(&run->system_event, 0, sizeof(run->system_event));
+ run->system_event.type = type;
+ run->system_event.flags = flags;
+ run->exit_reason = KVM_EXIT_SYSTEM_EVENT;
+}
+
int kvm_riscv_vcpu_sbi_return(struct kvm_vcpu *vcpu, struct kvm_run *run)
{
struct kvm_cpu_context *cp = &vcpu->arch.guest_context;
diff --git a/arch/riscv/kvm/vcpu_sbi_v01.c b/arch/riscv/kvm/vcpu_sbi_v01.c
index 2ab52b6d9ed3..da4d6c99c2cf 100644
--- a/arch/riscv/kvm/vcpu_sbi_v01.c
+++ b/arch/riscv/kvm/vcpu_sbi_v01.c
@@ -14,21 +14,6 @@
#include <asm/kvm_vcpu_timer.h>
#include <asm/kvm_vcpu_sbi.h>
-static void kvm_sbi_system_shutdown(struct kvm_vcpu *vcpu,
- struct kvm_run *run, u32 type)
-{
- unsigned long i;
- struct kvm_vcpu *tmp;
-
- kvm_for_each_vcpu(i, tmp, vcpu->kvm)
- tmp->arch.power_off = true;
- kvm_make_all_cpus_request(vcpu->kvm, KVM_REQ_SLEEP);
-
- memset(&run->system_event, 0, sizeof(run->system_event));
- run->system_event.type = type;
- run->exit_reason = KVM_EXIT_SYSTEM_EVENT;
-}
-
static int kvm_sbi_ext_v01_handler(struct kvm_vcpu *vcpu, struct kvm_run *run,
unsigned long *out_val,
struct kvm_cpu_trap *utrap,
@@ -80,7 +65,8 @@ static int kvm_sbi_ext_v01_handler(struct kvm_vcpu *vcpu, struct kvm_run *run,
}
break;
case SBI_EXT_0_1_SHUTDOWN:
- kvm_sbi_system_shutdown(vcpu, run, KVM_SYSTEM_EVENT_SHUTDOWN);
+ kvm_riscv_vcpu_sbi_system_reset(vcpu, run,
+ KVM_SYSTEM_EVENT_SHUTDOWN, 0);
*exit = true;
break;
case SBI_EXT_0_1_REMOTE_FENCE_I:
--
2.25.1
next prev parent reply other threads:[~2022-02-01 8:23 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-01 8:22 [PATCH 0/6] KVM RISC-V SBI v0.3 support Anup Patel
2022-02-01 8:22 ` [PATCH 1/6] RISC-V: KVM: Upgrade SBI spec version to v0.3 Anup Patel
2022-02-22 23:53 ` Atish Patra
2022-02-01 8:22 ` Anup Patel [this message]
2022-02-22 23:54 ` [PATCH 2/6] RISC-V: KVM: Add common kvm_riscv_vcpu_sbi_system_reset() function Atish Patra
2022-02-01 8:22 ` [PATCH 3/6] RISC-V: KVM: Implement SBI v0.3 SRST extension Anup Patel
2022-02-22 23:56 ` Atish Patra
2022-02-01 8:22 ` [PATCH 4/6] RISC-V: Add SBI HSM suspend related defines Anup Patel
2022-02-23 0:00 ` Atish Patra
2022-02-01 8:22 ` [PATCH 5/6] RISC-V: KVM: Add common kvm_riscv_vcpu_wfi() function Anup Patel
2022-02-23 0:01 ` Atish Patra
2022-02-01 8:22 ` [PATCH 6/6] RISC-V: KVM: Implement SBI HSM suspend call Anup Patel
2022-02-23 3:37 ` Atish Patra
2022-03-08 5:57 ` [PATCH 0/6] KVM RISC-V SBI v0.3 support Anup Patel
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