diff options
| author | Alexey Kardashevskiy <aik@linux.ibm.com> | 2020-11-19 21:01:35 +1100 |
|---|---|---|
| committer | Dmitry Vyukov <dvyukov@google.com> | 2020-11-20 15:31:42 +0100 |
| commit | 680688040fc26d17a49a9663fbbd6a716c6247b6 (patch) | |
| tree | 4cb0e538575460b72864d2e782a77371aa7ec173 /executor/test_linux.h | |
| parent | e72f8f11e096d36aefc41a35c718dced97c45dea (diff) | |
pkg/ifuzz/powerpc: add powerpc support
This adds KVM's syz_kvm_setup_cpu pseudo syscall. This adds placeholder
for options (none implemented yet).
This adds instruction generator for ifuzz; this also adds a few pseudo
instructions to simulate super/hyper/ultracalls
(a PPC64/pseries platform thing).
The insns.go is generated from PowerISA_public.v3.0B.pdf [1] by
a horrendous python3 script on top of pdftotext. The ISA covers POWER9
which is the latest available POWER CPU at the moment. The next ISA
for POWER10 is quite different and we will deal with it later.
The // comment after every instruction is a fixed opcode list for
verification purposes.
This does not define DecodeExt as there is no obvious replacement of
the Intel XED library for POWERPC (gapstone-capstone, later, may be).
[1] https://openpowerfoundation.org/?resource_lib=power-isa-version-3-0
Signed-off-by: Alexey Kardashevskiy <aik@linux.ibm.com>
Diffstat (limited to 'executor/test_linux.h')
| -rw-r--r-- | executor/test_linux.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/executor/test_linux.h b/executor/test_linux.h index fcd8d855e..428fba967 100644 --- a/executor/test_linux.h +++ b/executor/test_linux.h @@ -75,11 +75,13 @@ static int test_one(int text_type, const char* text, int text_size, int flags, u dump_cpu_state(cpufd, (char*)vm_mem); return 1; } +#ifdef GOARCH_amd64 if (check_rax && regs.rax != 0xbadc0de) { printf("wrong result: rax=0x%llx\n", (long long)regs.rax); dump_cpu_state(cpufd, (char*)vm_mem); return 1; } +#endif munmap(vm_mem, vm_mem_size); munmap(cpu_mem, cpu_mem_size); close(cpufd); @@ -108,6 +110,7 @@ static int test_kvm() const char text8[] = "\x66\xb8\xde\xc0\xad\x0b"; if ((res = test_one(8, text8, sizeof(text8) - 1, 0, KVM_EXIT_HLT, true))) return res; +#ifdef GOARCH_amd64 if ((res = test_one(8, text8, sizeof(text8) - 1, KVM_SETUP_VIRT86, KVM_EXIT_SHUTDOWN, true))) return res; if ((res = test_one(8, text8, sizeof(text8) - 1, KVM_SETUP_VIRT86 | KVM_SETUP_PAGING, KVM_EXIT_SHUTDOWN, true))) @@ -161,6 +164,7 @@ static int test_kvm() if ((res = test_one(32, text_rsm, sizeof(text_rsm) - 1, KVM_SETUP_SMM, KVM_EXIT_HLT, false))) return res; } +#endif return 0; } @@ -179,14 +183,17 @@ static unsigned host_kernel_version() return major * 100 + minor; } +#ifdef GOARCH_amd64 static void dump_seg(const char* name, struct kvm_segment* seg) { printf("%s: base=0x%llx limit=0x%x sel=0x%x type=%d p=%d dpl=%d, db=%d s=%d l=%d g=%d\n", name, seg->base, seg->limit, seg->selector, seg->type, seg->present, seg->dpl, seg->db, seg->s, seg->l, seg->g); } +#endif static void dump_cpu_state(int cpufd, char* vm_mem) { +#ifdef GOARCH_amd64 struct kvm_sregs sregs; if (ioctl(cpufd, KVM_GET_SREGS, &sregs)) { printf("KVM_GET_SREGS failed (%d)\n", errno); @@ -219,4 +226,5 @@ static void dump_cpu_state(int cpufd, char* vm_mem) ((long long*)vm_mem)[i], ((long long*)vm_mem)[i + 1], ((long long*)vm_mem)[i + 2], ((long long*)vm_mem)[i + 3]); } } +#endif } |