linux-kernel - [PATCH v5 11/12] KVM: riscv: selftests: Change vcpu_has

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Message-Id: <68856b86a93a4188558e5d0ebac0dd6aac8e404c.1705916069.git.haibo1.xu@intel.com>
Date: Mon, 22 Jan 2024 17:58:41 +0800
From: Haibo Xu <haibo1.xu@...el.com>
To: 
Cc: xiaobo55x@...il.com,
	ajones@...tanamicro.com,
	Haibo Xu <haibo1.xu@...el.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Paolo Bonzini <pbonzini@...hat.com>,
	Shuah Khan <shuah@...nel.org>,
	Marc Zyngier <maz@...nel.org>,
	Oliver Upton <oliver.upton@...ux.dev>,
	James Morse <james.morse@....com>,
	Suzuki K Poulose <suzuki.poulose@....com>,
	Zenghui Yu <yuzenghui@...wei.com>,
	Anup Patel <anup@...infault.org>,
	Atish Patra <atishp@...shpatra.org>,
	Guo Ren <guoren@...nel.org>,
	Mayuresh Chitale <mchitale@...tanamicro.com>,
	Daniel Henrique Barboza <dbarboza@...tanamicro.com>,
	Conor Dooley <conor.dooley@...rochip.com>,
	Samuel Holland <samuel@...lland.org>,
	Minda Chen <minda.chen@...rfivetech.com>,
	Jisheng Zhang <jszhang@...nel.org>,
	Sean Christopherson <seanjc@...gle.com>,
	Peter Xu <peterx@...hat.com>,
	Like Xu <likexu@...cent.com>,
	Vipin Sharma <vipinsh@...gle.com>,
	Thomas Huth <thuth@...hat.com>,
	Aaron Lewis <aaronlewis@...gle.com>,
	Maciej Wieczor-Retman <maciej.wieczor-retman@...el.com>,
	linux-kernel@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	kvm@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	kvmarm@...ts.linux.dev,
	kvm-riscv@...ts.infradead.org
Subject: [PATCH v5 11/12] KVM: riscv: selftests: Change vcpu_has_ext to a common function

Move vcpu_has_ext to the processor.c and rename it to __vcpu_has_ext
so that other test cases can use it for vCPU extension check.

Signed-off-by: Haibo Xu <haibo1.xu@...el.com>
Reviewed-by: Andrew Jones <ajones@...tanamicro.com>
---
 tools/testing/selftests/kvm/include/riscv/processor.h |  2 ++
 tools/testing/selftests/kvm/lib/riscv/processor.c     | 10 ++++++++++
 tools/testing/selftests/kvm/riscv/get-reg-list.c      | 11 +----------
 3 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/tools/testing/selftests/kvm/include/riscv/processor.h b/tools/testing/selftests/kvm/include/riscv/processor.h
index b68b1b731a34..bd27e1c67579 100644
--- a/tools/testing/selftests/kvm/include/riscv/processor.h
+++ b/tools/testing/selftests/kvm/include/riscv/processor.h
@@ -42,6 +42,8 @@ static inline uint64_t __kvm_reg_id(uint64_t type, uint64_t idx,
 #define RISCV_ISA_EXT_REG(idx)	__kvm_reg_id(KVM_REG_RISCV_ISA_EXT, \
 					     idx, KVM_REG_SIZE_ULONG)
 
+bool __vcpu_has_ext(struct kvm_vcpu *vcpu, int ext);
+
 struct ex_regs {
 	unsigned long ra;
 	unsigned long sp;
diff --git a/tools/testing/selftests/kvm/lib/riscv/processor.c b/tools/testing/selftests/kvm/lib/riscv/processor.c
index 39a1e9902dec..dad73ce18164 100644
--- a/tools/testing/selftests/kvm/lib/riscv/processor.c
+++ b/tools/testing/selftests/kvm/lib/riscv/processor.c
@@ -15,6 +15,16 @@
 
 static vm_vaddr_t exception_handlers;
 
+bool __vcpu_has_ext(struct kvm_vcpu *vcpu, int ext)
+{
+	unsigned long value = 0;
+	int ret;
+
+	ret = __vcpu_get_reg(vcpu, RISCV_ISA_EXT_REG(ext), &value);
+
+	return !ret && !!value;
+}
+
 static uint64_t page_align(struct kvm_vm *vm, uint64_t v)
 {
 	return (v + vm->page_size) & ~(vm->page_size - 1);
diff --git a/tools/testing/selftests/kvm/riscv/get-reg-list.c b/tools/testing/selftests/kvm/riscv/get-reg-list.c
index 25de4b8bc347..ed29ba45588c 100644
--- a/tools/testing/selftests/kvm/riscv/get-reg-list.c
+++ b/tools/testing/selftests/kvm/riscv/get-reg-list.c
@@ -75,15 +75,6 @@ bool check_reject_set(int err)
 	return err == EINVAL;
 }
 
-static inline bool vcpu_has_ext(struct kvm_vcpu *vcpu, int ext)
-{
-	int ret;
-	unsigned long value;
-
-	ret = __vcpu_get_reg(vcpu, RISCV_ISA_EXT_REG(ext), &value);
-	return (ret) ? false : !!value;
-}
-
 void finalize_vcpu(struct kvm_vcpu *vcpu, struct vcpu_reg_list *c)
 {
 	unsigned long isa_ext_state[KVM_RISCV_ISA_EXT_MAX] = { 0 };
@@ -111,7 +102,7 @@ void finalize_vcpu(struct kvm_vcpu *vcpu, struct vcpu_reg_list *c)
 		__vcpu_set_reg(vcpu, RISCV_ISA_EXT_REG(s->feature), 1);
 
 		/* Double check whether the desired extension was enabled */
-		__TEST_REQUIRE(vcpu_has_ext(vcpu, s->feature),
+		__TEST_REQUIRE(__vcpu_has_ext(vcpu, s->feature),
 			       "%s not available, skipping tests\n", s->name);
 	}
 }
-- 
2.34.1