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| author | Louis Burda <quent.burda@gmail.com> | 2022-09-29 00:32:30 +0200 |
|---|---|---|
| committer | Louis Burda <quent.burda@gmail.com> | 2022-09-29 00:32:30 +0200 |
| commit | 9cce829d8a794848b0699c3f9a84b2a057221a90 (patch) | |
| tree | f1efcf63354a6fd971974a027b8d6dc56b1da470 /kmod/kvm.c | |
| parent | 297900bdb5d58224bb1d65f5632a179de825c11d (diff) | |
| download | cachepc-9cce829d8a794848b0699c3f9a84b2a057221a90.tar.gz cachepc-9cce829d8a794848b0699c3f9a84b2a057221a90.zip | |
Adapt kernel module for sev-snp machine
Diffstat (limited to 'kmod/kvm.c')
| -rw-r--r-- | kmod/kvm.c | 21 |
1 files changed, 21 insertions, 0 deletions
@@ -69,6 +69,26 @@ cachepc_kvm_proc_write(struct file *file, const char *buf, size_t buflen, loff_t return 0; } +loff_t +cachepc_kvm_proc_lseek(struct file *file, loff_t off, int mode) +{ + switch (mode) { + case SEEK_SET: + file->f_pos = off; + break; + case SEEK_CUR: + file->f_pos += off; + break; + case SEEK_END: + file->f_pos = cachepc_msrmts_count * sizeof(uint16_t) + off; + break; + default: + return -EINVAL; + } + + return file->f_pos; +} + void cachepc_kvm_prime_probe_test(void *p) { @@ -355,6 +375,7 @@ cachepc_kvm_init(void) cachepc_proc_ops.proc_open = cachepc_kvm_proc_open; cachepc_proc_ops.proc_read = cachepc_kvm_proc_read; cachepc_proc_ops.proc_write = cachepc_kvm_proc_write; + cachepc_proc_ops.proc_lseek = cachepc_kvm_proc_lseek; cachepc_proc_ops.proc_release = cachepc_kvm_proc_close; cachepc_proc_ops.proc_ioctl = cachepc_kvm_ioctl; proc_create("cachepc", 0644, NULL, &cachepc_proc_ops); |