diff options
| author | 6eanut <jiakaiPeanut@gmail.com> | 2026-01-20 09:39:21 +0000 |
|---|---|---|
| committer | Alexander Potapenko <glider@google.com> | 2026-01-21 11:38:32 +0000 |
| commit | 6984f21fcb77bdd034a489c0e552aa1d910e852f (patch) | |
| tree | 72c1aabe2770b18ba1fbb4bcad74259d361bd604 /executor | |
| parent | ad02db7b6c8ae92053b85c73b7a8f896543e6b4e (diff) | |
executor, sys/linux, pkg: enable syz_kvm_assert_reg for riscv64
- Enables syz_kvm_assert_reg for riscv64.
- Updates kvm_one_reg according to the latest definition in
https://github.com/torvalds/linux/blob/master/arch/riscv/include/uapi/asm/kvm.h.
- Adds a test case: riscv64-kvm-reg.
Diffstat (limited to 'executor')
| -rw-r--r-- | executor/common_kvm_riscv64.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/executor/common_kvm_riscv64.h b/executor/common_kvm_riscv64.h index dcccd6dad..500240638 100644 --- a/executor/common_kvm_riscv64.h +++ b/executor/common_kvm_riscv64.h @@ -12,6 +12,7 @@ #include <string.h> #include <sys/ioctl.h> +#if SYZ_EXECUTOR || __NR_syz_kvm_setup_cpu struct kvm_text { uintptr_t type; const void* text; @@ -153,5 +154,25 @@ static volatile long syz_kvm_setup_cpu(volatile long a0, volatile long a1, volat return 0; } +#endif + +#if SYZ_EXECUTOR || __NR_syz_kvm_assert_reg +static long syz_kvm_assert_reg(volatile long a0, volatile long a1, volatile long a2) +{ + int vcpu_fd = (int)a0; + uint64 id = (uint64)a1; + uint64 expect = a2, val = 0; + + struct kvm_one_reg reg = {.id = id, .addr = (uint64)&val}; + int ret = ioctl(vcpu_fd, KVM_GET_ONE_REG, ®); + if (ret) + return ret; + if (val != expect) { + errno = EDOM; + return -1; + } + return 0; +} +#endif #endif // EXECUTOR_COMMON_KVM_RISCV64_H
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