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 |
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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 |