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| author | Louis Burda <quent.burda@gmail.com> | 2022-08-19 13:50:26 +0200 |
|---|---|---|
| committer | Louis Burda <quent.burda@gmail.com> | 2022-08-19 13:50:26 +0200 |
| commit | 0a98557023804f047f54875817dedc4aa431d899 (patch) | |
| tree | 14b14ee05e84a502e351ae4af0f833e300fba69c /kmod/cachepc.c | |
| parent | 329e7d4740bac8b740583dd68108ab9d3d0c06b7 (diff) | |
| download | cachepc-0a98557023804f047f54875817dedc4aa431d899.tar.gz cachepc-0a98557023804f047f54875817dedc4aa431d899.zip | |
Inline prime and probe into vmenter.S for better accuracy
Diffstat (limited to 'kmod/cachepc.c')
| -rwxr-xr-x | kmod/cachepc.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/kmod/cachepc.c b/kmod/cachepc.c index 1dcb764..63500a5 100755 --- a/kmod/cachepc.c +++ b/kmod/cachepc.c @@ -16,6 +16,22 @@ static void build_randomized_list_for_cache_set(cache_ctx *ctx, cacheline **cach static cacheline **allocate_cache_ds(cache_ctx *ctx); static uint16_t get_virt_cache_set(cache_ctx *ctx, void *ptr); +cacheline *cachepc_prime_cl = NULL; + +void +cachepc_prime_vcall(uintptr_t ret, cacheline *cl) +{ + cachepc_prime(cl); + asm volatile ("mov %0, %%rax; jmp *%%rax" : : "r"(ret) : "rax"); +} + +void +cachepc_probe_vcall(uintptr_t ret, cacheline *cl) +{ + cachepc_probe(cl); + asm volatile ("mov %0, %%rax; jmp *%%rax" : : "r"(ret) : "rax"); +} + void cachepc_init_pmc(uint8_t index, uint8_t event_no, uint8_t event_mask) { |