diff options
Diffstat (limited to 'tools/testing/selftests/kvm/include')
6 files changed, 157 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/include/kvm_util.h b/tools/testing/selftests/kvm/include/kvm_util.h index e3b122719262..e2618877619e 100644 --- a/tools/testing/selftests/kvm/include/kvm_util.h +++ b/tools/testing/selftests/kvm/include/kvm_util.h @@ -14,6 +14,7 @@ #include <linux/kvm.h> #include "linux/rbtree.h" #include <linux/types.h> +#include <unistd.h> #include <asm/atomic.h> #include <asm/kvm.h> @@ -241,6 +242,9 @@ enum vm_guest_mode { VM_MODE_P41V48_4K, VM_MODE_P41V39_4K, + VM_MODE_P52V52_4K, /* For powerpc64 */ + VM_MODE_P52V52_64K, + NUM_VM_MODES, }; @@ -300,6 +304,12 @@ extern enum vm_guest_mode vm_mode_default; #define MIN_PAGE_SHIFT 12U #define ptes_per_page(page_size) ((page_size) / 8) +#elif defined(__powerpc64__) + +#define VM_MODE_DEFAULT vm_mode_default +#define MIN_PAGE_SHIFT 12U +#define ptes_per_page(page_size) ((page_size) / 8) + #endif #define VM_SHAPE_DEFAULT VM_SHAPE(VM_MODE_DEFAULT) @@ -1162,6 +1172,22 @@ const char *exit_reason_str(unsigned int exit_reason); bool kvm_arch_needs_naturally_aligned_page_tables(void); +/* + * True on powerpc when this host is a pseries LPAR (nested case). + * PowerPC's PAPR L0 does not guarantee H_GUEST_CREATE / H_GUEST_CREATE_VCPU up + * to MAX_VCPUS or creating hundreds of VMs - due to limited resouces at L0 for + * guest management space. This helper allows us to skip such tests when we are + * running nested. + */ +static inline bool kvm_is_ppc_pseries_lpar(void) +{ +#ifdef __powerpc64__ + return !access("/proc/device-tree/rtas/ibm,hypertas-functions", F_OK); +#else + return false; +#endif +} + gpa_t ____vm_phy_pages_alloc(struct kvm_vm *vm, size_t nr_pages, gpa_t min_gpa, u32 memslot, bool protected, bool naturally_aligned); gpa_t __vm_phy_pages_alloc(struct kvm_vm *vm, size_t nr_pages, diff --git a/tools/testing/selftests/kvm/include/powerpc/hcall.h b/tools/testing/selftests/kvm/include/powerpc/hcall.h new file mode 100644 index 000000000000..21b2bf9180f1 --- /dev/null +++ b/tools/testing/selftests/kvm/include/powerpc/hcall.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * powerpc hcall defines + */ +#ifndef SELFTEST_KVM_HCALL_H +#define SELFTEST_KVM_HCALL_H + +#include <linux/compiler.h> + +/* Ucalls use unimplemented PAPR hcall 0 which exits KVM */ +#define H_UCALL 0 + +s64 hcall0(u64 token); +s64 hcall1(u64 token, u64 arg1); +s64 hcall2(u64 token, u64 arg1, u64 arg2); + +#endif diff --git a/tools/testing/selftests/kvm/include/powerpc/kvm_util_arch.h b/tools/testing/selftests/kvm/include/powerpc/kvm_util_arch.h new file mode 100644 index 000000000000..5d45c25cd299 --- /dev/null +++ b/tools/testing/selftests/kvm/include/powerpc/kvm_util_arch.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef SELFTEST_KVM_UTIL_ARCH_H +#define SELFTEST_KVM_UTIL_ARCH_H + +#include <stdint.h> + +#include "kvm_util_types.h" + +struct kvm_mmu_arch {}; + +/* Page table fragment cache for guest page tables < page size */ +struct vm_pt_frag_cache { + gpa_t page; + size_t page_nr_used; +}; + +struct kvm_vm_arch { + gpa_t prtb; /* process table */ + struct vm_pt_frag_cache pt_frag_cache[2]; /* 256B and 4KB PT caches */ +}; + +#endif /* SELFTEST_KVM_UTIL_ARCH_H */ diff --git a/tools/testing/selftests/kvm/include/powerpc/ppc_asm.h b/tools/testing/selftests/kvm/include/powerpc/ppc_asm.h new file mode 100644 index 000000000000..b9df64659792 --- /dev/null +++ b/tools/testing/selftests/kvm/include/powerpc/ppc_asm.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * powerpc asm specific defines + */ +#ifndef SELFTEST_KVM_PPC_ASM_H +#define SELFTEST_KVM_PPC_ASM_H + +#define STACK_FRAME_MIN_SIZE 112 /* Could be 32 on ELFv2 */ +#define STACK_REDZONE_SIZE 512 + +#define INT_FRAME_SIZE (STACK_FRAME_MIN_SIZE + STACK_REDZONE_SIZE) + +#define SPR_SRR0 0x01a +#define SPR_SRR1 0x01b +#define SPR_CFAR 0x01c + +#define MSR_SF 0x8000000000000000ULL +#define MSR_HV 0x1000000000000000ULL +#define MSR_VEC 0x0000000002000000ULL +#define MSR_VSX 0x0000000000800000ULL +#define MSR_EE 0x0000000000008000ULL +#define MSR_PR 0x0000000000004000ULL +#define MSR_FP 0x0000000000002000ULL +#define MSR_ME 0x0000000000001000ULL +#define MSR_IR 0x0000000000000020ULL +#define MSR_DR 0x0000000000000010ULL +#define MSR_RI 0x0000000000000002ULL +#define MSR_LE 0x0000000000000001ULL + +#define LPCR_ILE 0x0000000002000000ULL + +#endif diff --git a/tools/testing/selftests/kvm/include/powerpc/processor.h b/tools/testing/selftests/kvm/include/powerpc/processor.h new file mode 100644 index 000000000000..f0ee21a8e2d4 --- /dev/null +++ b/tools/testing/selftests/kvm/include/powerpc/processor.h @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * powerpc processor specific defines + */ +#ifndef SELFTEST_KVM_PROCESSOR_H +#define SELFTEST_KVM_PROCESSOR_H + +#include <linux/compiler.h> +#include "ppc_asm.h" +#include "kvm_util_types.h" + +extern unsigned char __interrupts_start[]; +extern unsigned char __interrupts_end[]; + +struct kvm_vm; +struct kvm_vcpu; + +struct ex_regs { + u64 gprs[32]; + u64 nia; + u64 msr; + u64 cfar; + u64 lr; + u64 ctr; + u64 xer; + u32 cr; + u32 trap; + gva_t gva; /* gva of this struct */ +}; + +void vm_install_exception_handler(struct kvm_vm *vm, int vector, + void (*handler)(struct ex_regs *)); + +static inline void cpu_relax(void) +{ + asm volatile("" ::: "memory"); +} + +#endif diff --git a/tools/testing/selftests/kvm/include/powerpc/ucall.h b/tools/testing/selftests/kvm/include/powerpc/ucall.h new file mode 100644 index 000000000000..e0dbe91e8848 --- /dev/null +++ b/tools/testing/selftests/kvm/include/powerpc/ucall.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef SELFTEST_KVM_UCALL_H +#define SELFTEST_KVM_UCALL_H + +#include "hcall.h" + +#define UCALL_EXIT_REASON KVM_EXIT_PAPR_HCALL + +#define UCALL_R4_UCALL 0x5715 /* regular ucall, r5 contains ucall pointer */ +#define UCALL_R4_SIMPLE 0x0000 /* simple exit usable by asm with no ucall data */ + +static inline void ucall_arch_init(struct kvm_vm *vm, gpa_t mmio_gpa) +{ +} + +static inline void ucall_arch_do_ucall(gva_t uc) +{ + hcall2(H_UCALL, UCALL_R4_UCALL, (uintptr_t)(uc)); +} + +#endif |