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Reply-To: Sean Christopherson <seanjc@google.com>
Date:   Fri, 11 Mar 2022 05:50:29 +0000
In-Reply-To: <20220311055056.57265-1-seanjc@google.com>
Message-Id: <20220311055056.57265-79-seanjc@google.com>
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References: <20220311055056.57265-1-seanjc@google.com>
Subject: [RFC PATCH 078/105] KVM: selftests: Add "arch" to common utils that
 have arch implementations
From:   Sean Christopherson <seanjc@google.com>
To:     linux-kernel@vger.kernel.org
Cc:     Sean Christopherson <seanjc@google.com>
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

Signed-off-by: Sean Christopherson <seanjc@google.com>
---
 .../selftests/kvm/include/kvm_util_base.h     | 201 ++++++++++--------
 .../selftests/kvm/lib/aarch64/processor.c     |  12 +-
 .../selftests/kvm/lib/riscv/processor.c       |  12 +-
 .../selftests/kvm/lib/s390x/processor.c       |  12 +-
 .../selftests/kvm/lib/x86_64/processor.c      |  12 +-
 5 files changed, 141 insertions(+), 108 deletions(-)

diff --git a/tools/testing/selftests/kvm/include/kvm_util_base.h b/tools/testing/selftests/kvm/include/kvm_util_base.h
index 042c39e474da..aa2e68bca741 100644
--- a/tools/testing/selftests/kvm/include/kvm_util_base.h
+++ b/tools/testing/selftests/kvm/include/kvm_util_base.h
@@ -95,23 +95,6 @@ struct kvm_vm {
 
 struct kvm_vcpu *vcpu_get(struct kvm_vm *vm, uint32_t vcpuid);
 
-/*
- * Virtual Translation Tables Dump
- *
- * Input Args:
- *   stream - Output FILE stream
- *   vm     - Virtual Machine
- *   indent - Left margin indent amount
- *
- * Output Args: None
- *
- * Return: None
- *
- * Dumps to the FILE stream given by @stream, the contents of all the
- * virtual translation tables for the VM given by @vm.
- */
-void virt_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent);
-
 struct userspace_mem_region *
 memslot2region(struct kvm_vm *vm, uint32_t memslot);
 
@@ -283,26 +266,6 @@ static inline int vm_get_stats_fd(struct kvm_vm *vm)
 	return fd;
 }
 
-
-/*
- * VM VCPU Dump
- *
- * Input Args:
- *   stream - Output FILE stream
- *   vm     - Virtual Machine
- *   vcpuid - VCPU ID
- *   indent - Left margin indent amount
- *
- * Output Args: None
- *
- * Return: None
- *
- * Dumps the current state of the VCPU specified by @vcpuid, within the VM
- * given by @vm, to the FILE stream given by @stream.
- */
-void vcpu_dump(FILE *stream, struct kvm_vm *vm, uint32_t vcpuid,
-	       uint8_t indent);
-
 void vm_create_irqchip(struct kvm_vm *vm);
 
 void vm_userspace_mem_region_add(struct kvm_vm *vm,
@@ -325,23 +288,6 @@ void *addr_gva2hva(struct kvm_vm *vm, vm_vaddr_t gva);
 vm_paddr_t addr_hva2gpa(struct kvm_vm *vm, void *hva);
 void *addr_gpa2alias(struct kvm_vm *vm, vm_paddr_t gpa);
 
-/*
- * Address Guest Virtual to Guest Physical
- *
- * Input Args:
- *   vm - Virtual Machine
- *   gva - VM virtual address
- *
- * Output Args: None
- *
- * Return:
- *   Equivalent VM physical address
- *
- * Returns the VM physical address of the translated VM virtual
- * address given by @gva.
- */
-vm_paddr_t addr_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva);
-
 struct kvm_run *vcpu_state(struct kvm_vm *vm, uint32_t vcpuid);
 void vcpu_run(struct kvm_vm *vm, uint32_t vcpuid);
 int _vcpu_run(struct kvm_vm *vm, uint32_t vcpuid);
@@ -565,26 +511,6 @@ void kvm_gsi_routing_write(struct kvm_vm *vm, struct kvm_irq_routing *routing);
 
 const char *exit_reason_str(unsigned int exit_reason);
 
-void virt_pgd_alloc(struct kvm_vm *vm);
-
-/*
- * VM Virtual Page Map
- *
- * Input Args:
- *   vm - Virtual Machine
- *   vaddr - VM Virtual Address
- *   paddr - VM Physical Address
- *   memslot - Memory region slot for new virtual translation tables
- *
- * Output Args: None
- *
- * Return: None
- *
- * Within @vm, creates a virtual translation for the page starting
- * at @vaddr to the page starting at @paddr.
- */
-void virt_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr);
-
 vm_paddr_t vm_phy_page_alloc(struct kvm_vm *vm, vm_paddr_t paddr_min,
 			     uint32_t memslot);
 vm_paddr_t vm_phy_pages_alloc(struct kvm_vm *vm, size_t num,
@@ -637,16 +563,6 @@ static inline struct kvm_vm *vm_create_with_one_vcpu(struct kvm_vcpu **vcpu,
 
 struct kvm_vcpu *vm_recreate_with_one_vcpu(struct kvm_vm *vm);
 
-/*
- * Adds a vCPU with reasonable defaults (e.g. a stack)
- *
- * Input Args:
- *   vm - Virtual Machine
- *   vcpuid - The id of the VCPU to add to the VM.
- *   guest_code - The vCPU's entry point
- */
-void vm_vcpu_add_default(struct kvm_vm *vm, uint32_t vcpuid, void *guest_code);
-
 unsigned int vm_get_page_size(struct kvm_vm *vm);
 unsigned int vm_get_page_shift(struct kvm_vm *vm);
 unsigned long vm_compute_max_gfn(struct kvm_vm *vm);
@@ -687,4 +603,121 @@ void assert_on_unhandled_exception(struct kvm_vm *vm, uint32_t vcpuid);
 
 int vm_get_stats_fd(struct kvm_vm *vm);
 
+/*
+ * VM VCPU Dump
+ *
+ * Input Args:
+ *   stream - Output FILE stream
+ *   vm     - Virtual Machine
+ *   vcpuid - VCPU ID
+ *   indent - Left margin indent amount
+ *
+ * Output Args: None
+ *
+ * Return: None
+ *
+ * Dumps the current state of the VCPU specified by @vcpuid, within the VM
+ * given by @vm, to the FILE stream given by @stream.
+ */
+
+void vcpu_arch_dump(FILE *stream, struct kvm_vm *vm, uint32_t vcpuid,
+		    uint8_t indent);
+
+static inline void vcpu_dump(FILE *stream, struct kvm_vm *vm, uint32_t vcpuid,
+			     uint8_t indent)
+{
+	vcpu_arch_dump(stream, vm, vcpuid, indent);
+}
+
+/*
+ * Adds a vCPU with reasonable defaults (e.g. a stack)
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   vcpuid - The id of the VCPU to add to the VM.
+ *   guest_code - The vCPU's entry point
+ */
+void vm_arch_vcpu_add(struct kvm_vm *vm, uint32_t vcpuid, void *guest_code);
+
+static inline void vm_vcpu_add_default(struct kvm_vm *vm, uint32_t vcpuid,
+				       void *guest_code)
+{
+	vm_arch_vcpu_add(vm, vcpuid, guest_code);
+}
+
+void virt_arch_pgd_alloc(struct kvm_vm *vm);
+
+static inline void virt_pgd_alloc(struct kvm_vm *vm)
+{
+	virt_arch_pgd_alloc(vm);
+}
+
+/*
+ * VM Virtual Page Map
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   vaddr - VM Virtual Address
+ *   paddr - VM Physical Address
+ *   memslot - Memory region slot for new virtual translation tables
+ *
+ * Output Args: None
+ *
+ * Return: None
+ *
+ * Within @vm, creates a virtual translation for the page starting
+ * at @vaddr to the page starting at @paddr.
+ */
+void virt_arch_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr);
+
+static inline void virt_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr)
+{
+	virt_arch_pg_map(vm, vaddr, paddr);
+}
+
+
+/*
+ * Address Guest Virtual to Guest Physical
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   gva - VM virtual address
+ *
+ * Output Args: None
+ *
+ * Return:
+ *   Equivalent VM physical address
+ *
+ * Returns the VM physical address of the translated VM virtual
+ * address given by @gva.
+ */
+vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva);
+
+static inline vm_paddr_t addr_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva)
+{
+	return addr_arch_gva2gpa(vm, gva);
+}
+
+/*
+ * Virtual Translation Tables Dump
+ *
+ * Input Args:
+ *   stream - Output FILE stream
+ *   vm     - Virtual Machine
+ *   indent - Left margin indent amount
+ *
+ * Output Args: None
+ *
+ * Return: None
+ *
+ * Dumps to the FILE stream given by @stream, the contents of all the
+ * virtual translation tables for the VM given by @vm.
+ */
+void virt_arch_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent);
+
+static inline void virt_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent)
+{
+	virt_arch_dump(stream, vm, indent);
+}
+
 #endif /* SELFTEST_KVM_UTIL_BASE_H */
diff --git a/tools/testing/selftests/kvm/lib/aarch64/processor.c b/tools/testing/selftests/kvm/lib/aarch64/processor.c
index 5f6967058647..653e740c46b1 100644
--- a/tools/testing/selftests/kvm/lib/aarch64/processor.c
+++ b/tools/testing/selftests/kvm/lib/aarch64/processor.c
@@ -74,7 +74,7 @@ static uint64_t __maybe_unused ptrs_per_pte(struct kvm_vm *vm)
 	return 1 << (vm->page_shift - 3);
 }
 
-void virt_pgd_alloc(struct kvm_vm *vm)
+void virt_arch_pgd_alloc(struct kvm_vm *vm)
 {
 	if (!vm->pgd_created) {
 		vm_paddr_t paddr = vm_phy_pages_alloc(vm,
@@ -131,14 +131,14 @@ static void _virt_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr,
 	*ptep |= (attr_idx << 2) | (1 << 10) /* Access Flag */;
 }
 
-void virt_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr)
+void virt_arch_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr)
 {
 	uint64_t attr_idx = 4; /* NORMAL (See DEFAULT_MAIR_EL1) */
 
 	_virt_pg_map(vm, vaddr, paddr, attr_idx);
 }
 
-vm_paddr_t addr_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva)
+vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva)
 {
 	uint64_t *ptep;
 
@@ -195,7 +195,7 @@ static void pte_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent, uint64_t p
 #endif
 }
 
-void virt_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent)
+void virt_arch_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent)
 {
 	int level = 4 - (vm->pgtable_levels - 1);
 	uint64_t pgd, *ptep;
@@ -303,7 +303,7 @@ void aarch64_vcpu_setup(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_vcpu_init
 	set_reg(vm, vcpuid, KVM_ARM64_SYS_REG(SYS_TPIDR_EL1), vcpuid);
 }
 
-void vcpu_dump(FILE *stream, struct kvm_vm *vm, uint32_t vcpuid, uint8_t indent)
+void vcpu_arch_dump(FILE *stream, struct kvm_vm *vm, uint32_t vcpuid, uint8_t indent)
 {
 	uint64_t pstate, pc;
 
@@ -330,7 +330,7 @@ void aarch64_vcpu_add_default(struct kvm_vm *vm, uint32_t vcpuid,
 	set_reg(vm, vcpuid, ARM64_CORE_REG(regs.pc), (uint64_t)guest_code);
 }
 
-void vm_vcpu_add_default(struct kvm_vm *vm, uint32_t vcpuid, void *guest_code)
+void vm_arch_vcpu_add(struct kvm_vm *vm, uint32_t vcpuid, void *guest_code)
 {
 	aarch64_vcpu_add_default(vm, vcpuid, NULL, guest_code);
 }
diff --git a/tools/testing/selftests/kvm/lib/riscv/processor.c b/tools/testing/selftests/kvm/lib/riscv/processor.c
index f17c7542cc53..8f415633ed12 100644
--- a/tools/testing/selftests/kvm/lib/riscv/processor.c
+++ b/tools/testing/selftests/kvm/lib/riscv/processor.c
@@ -53,7 +53,7 @@ static uint64_t pte_index(struct kvm_vm *vm, vm_vaddr_t gva, int level)
 	return (gva & pte_index_mask[level]) >> pte_index_shift[level];
 }
 
-void virt_pgd_alloc(struct kvm_vm *vm)
+void virt_arch_pgd_alloc(struct kvm_vm *vm)
 {
 	if (!vm->pgd_created) {
 		vm_paddr_t paddr = vm_phy_pages_alloc(vm,
@@ -64,7 +64,7 @@ void virt_pgd_alloc(struct kvm_vm *vm)
 	}
 }
 
-void virt_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr)
+void virt_arch_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr)
 {
 	uint64_t *ptep, next_ppn;
 	int level = vm->pgtable_levels - 1;
@@ -108,7 +108,7 @@ void virt_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr)
 		PGTBL_PTE_PERM_MASK | PGTBL_PTE_VALID_MASK;
 }
 
-vm_paddr_t addr_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva)
+vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva)
 {
 	uint64_t *ptep;
 	int level = vm->pgtable_levels - 1;
@@ -159,7 +159,7 @@ static void pte_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent,
 #endif
 }
 
-void virt_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent)
+void virt_arch_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent)
 {
 	int level = vm->pgtable_levels - 1;
 	uint64_t pgd, *ptep;
@@ -201,7 +201,7 @@ void riscv_vcpu_mmu_setup(struct kvm_vm *vm, int vcpuid)
 	set_reg(vm, vcpuid, RISCV_CSR_REG(satp), satp);
 }
 
-void vcpu_dump(FILE *stream, struct kvm_vm *vm, uint32_t vcpuid, uint8_t indent)
+void vcpu_arch_dump(FILE *stream, struct kvm_vm *vm, uint32_t vcpuid, uint8_t indent)
 {
 	struct kvm_riscv_core core;
 
@@ -273,7 +273,7 @@ static void guest_hang(void)
 		;
 }
 
-void vm_vcpu_add_default(struct kvm_vm *vm, uint32_t vcpuid, void *guest_code)
+void vm_arch_vcpu_add(struct kvm_vm *vm, uint32_t vcpuid, void *guest_code)
 {
 	int r;
 	size_t stack_size = vm->page_size == 4096 ?
diff --git a/tools/testing/selftests/kvm/lib/s390x/processor.c b/tools/testing/selftests/kvm/lib/s390x/processor.c
index aec15ca9d887..c2fe56a3fb74 100644
--- a/tools/testing/selftests/kvm/lib/s390x/processor.c
+++ b/tools/testing/selftests/kvm/lib/s390x/processor.c
@@ -10,7 +10,7 @@
 
 #define PAGES_PER_REGION 4
 
-void virt_pgd_alloc(struct kvm_vm *vm)
+void virt_arch_pgd_alloc(struct kvm_vm *vm)
 {
 	vm_paddr_t paddr;
 
@@ -46,7 +46,7 @@ static uint64_t virt_alloc_region(struct kvm_vm *vm, int ri)
 		| ((ri < 4 ? (PAGES_PER_REGION - 1) : 0) & REGION_ENTRY_LENGTH);
 }
 
-void virt_pg_map(struct kvm_vm *vm, uint64_t gva, uint64_t gpa)
+void virt_arch_pg_map(struct kvm_vm *vm, uint64_t gva, uint64_t gpa)
 {
 	int ri, idx;
 	uint64_t *entry;
@@ -85,7 +85,7 @@ void virt_pg_map(struct kvm_vm *vm, uint64_t gva, uint64_t gpa)
 	entry[idx] = gpa;
 }
 
-vm_paddr_t addr_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva)
+vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva)
 {
 	int ri, idx;
 	uint64_t *entry;
@@ -146,7 +146,7 @@ static void virt_dump_region(FILE *stream, struct kvm_vm *vm, uint8_t indent,
 	}
 }
 
-void virt_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent)
+void virt_arch_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent)
 {
 	if (!vm->pgd_created)
 		return;
@@ -154,7 +154,7 @@ void virt_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent)
 	virt_dump_region(stream, vm, indent, vm->pgd);
 }
 
-void vm_vcpu_add_default(struct kvm_vm *vm, uint32_t vcpuid, void *guest_code)
+void vm_arch_vcpu_add(struct kvm_vm *vm, uint32_t vcpuid, void *guest_code)
 {
 	size_t stack_size =  DEFAULT_STACK_PGS * getpagesize();
 	uint64_t stack_vaddr;
@@ -205,7 +205,7 @@ void vcpu_args_set(struct kvm_vm *vm, uint32_t vcpuid, unsigned int num, ...)
 	va_end(ap);
 }
 
-void vcpu_dump(FILE *stream, struct kvm_vm *vm, uint32_t vcpuid, uint8_t indent)
+void vcpu_arch_dump(FILE *stream, struct kvm_vm *vm, uint32_t vcpuid, uint8_t indent)
 {
 	struct kvm_vcpu *vcpu = vcpu_get(vm, vcpuid);
 
diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c
index ea7f1703e51e..fd14351a3835 100644
--- a/tools/testing/selftests/kvm/lib/x86_64/processor.c
+++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c
@@ -141,7 +141,7 @@ static void sregs_dump(FILE *stream, struct kvm_sregs *sregs, uint8_t indent)
 	}
 }
 
-void virt_pgd_alloc(struct kvm_vm *vm)
+void virt_arch_pgd_alloc(struct kvm_vm *vm)
 {
 	TEST_ASSERT(vm->mode == VM_MODE_PXXV48_4K, "Attempt to use "
 		"unknown or unsupported guest mode, mode: 0x%x", vm->mode);
@@ -244,7 +244,7 @@ void __virt_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr,
 	pte->present = 1;
 }
 
-void virt_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr)
+void virt_arch_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr)
 {
 	__virt_pg_map(vm, vaddr, paddr, X86_PAGE_SIZE_4K);
 }
@@ -341,7 +341,7 @@ void vm_set_page_table_entry(struct kvm_vm *vm, int vcpuid, uint64_t vaddr,
 	*(uint64_t *)new_pte = pte;
 }
 
-void virt_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent)
+void virt_arch_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent)
 {
 	struct pageUpperEntry *pml4e, *pml4e_start;
 	struct pageUpperEntry *pdpe, *pdpe_start;
@@ -522,7 +522,7 @@ static void kvm_seg_set_kernel_data_64bit(struct kvm_vm *vm, uint16_t selector,
 		kvm_seg_fill_gdt_64bit(vm, segp);
 }
 
-vm_paddr_t addr_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva)
+vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva)
 {
 	uint16_t index[4];
 	struct pageUpperEntry *pml4e, *pdpe, *pde;
@@ -671,7 +671,7 @@ void vm_xsave_req_perm(int bit)
 		    bitmask);
 }
 
-void vm_vcpu_add_default(struct kvm_vm *vm, uint32_t vcpuid, void *guest_code)
+void vm_arch_vcpu_add(struct kvm_vm *vm, uint32_t vcpuid, void *guest_code)
 {
 	struct kvm_mp_state mp_state;
 	struct kvm_regs regs;
@@ -932,7 +932,7 @@ void vcpu_args_set(struct kvm_vm *vm, uint32_t vcpuid, unsigned int num, ...)
 	va_end(ap);
 }
 
-void vcpu_dump(FILE *stream, struct kvm_vm *vm, uint32_t vcpuid, uint8_t indent)
+void vcpu_arch_dump(FILE *stream, struct kvm_vm *vm, uint32_t vcpuid, uint8_t indent)
 {
 	struct kvm_regs regs;
 	struct kvm_sregs sregs;
-- 
2.35.1.723.g4982287a31-goog