7581e84cb6
A userspace process (CPL=3) can access an i/o port if the bit corresponding to the port is set to 0 in the I/O permission bitmap. Configure the I/O permission bitmap address beyond the last valid byte in the TSS so access to all i/o ports is blocked. Signed-off-by: Liu Hua <sdu.liu@huawei.com> Change-Id: I3df76980c3735491db768f7210e71703f86bb989 PiperOrigin-RevId: 257336518 |
||
|---|---|---|
| .. | ||
| gen_offsets | ||
| pagetables | ||
| BUILD | ||
| defs.go | ||
| defs_amd64.go | ||
| entry_amd64.go | ||
| entry_amd64.s | ||
| kernel.go | ||
| kernel_amd64.go | ||
| kernel_unsafe.go | ||
| lib_amd64.go | ||
| lib_amd64.s | ||
| offsets_amd64.go | ||
| ring0.go | ||
| x86.go | ||