cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

perf_event_sample_period.c (1677B)

      1{
      2	"check bpf_perf_event_data->sample_period byte load permitted",
      3	.insns = {
      4	BPF_MOV64_IMM(BPF_REG_0, 0),
      5#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
      6	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
      7		    offsetof(struct bpf_perf_event_data, sample_period)),
      8#else
      9	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
     10		    offsetof(struct bpf_perf_event_data, sample_period) + 7),
     11#endif
     12	BPF_EXIT_INSN(),
     13	},
     14	.result = ACCEPT,
     15	.prog_type = BPF_PROG_TYPE_PERF_EVENT,
     16},
     17{
     18	"check bpf_perf_event_data->sample_period half load permitted",
     19	.insns = {
     20	BPF_MOV64_IMM(BPF_REG_0, 0),
     21#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
     22	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
     23		    offsetof(struct bpf_perf_event_data, sample_period)),
     24#else
     25	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
     26		    offsetof(struct bpf_perf_event_data, sample_period) + 6),
     27#endif
     28	BPF_EXIT_INSN(),
     29	},
     30	.result = ACCEPT,
     31	.prog_type = BPF_PROG_TYPE_PERF_EVENT,
     32},
     33{
     34	"check bpf_perf_event_data->sample_period word load permitted",
     35	.insns = {
     36	BPF_MOV64_IMM(BPF_REG_0, 0),
     37#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
     38	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
     39		    offsetof(struct bpf_perf_event_data, sample_period)),
     40#else
     41	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
     42		    offsetof(struct bpf_perf_event_data, sample_period) + 4),
     43#endif
     44	BPF_EXIT_INSN(),
     45	},
     46	.result = ACCEPT,
     47	.prog_type = BPF_PROG_TYPE_PERF_EVENT,
     48},
     49{
     50	"check bpf_perf_event_data->sample_period dword load permitted",
     51	.insns = {
     52	BPF_MOV64_IMM(BPF_REG_0, 0),
     53	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
     54		    offsetof(struct bpf_perf_event_data, sample_period)),
     55	BPF_EXIT_INSN(),
     56	},
     57	.result = ACCEPT,
     58	.prog_type = BPF_PROG_TYPE_PERF_EVENT,
     59},