diff options
| author | Ian Moffett <ian@osmora.org> | 2025-07-05 01:03:23 +0000 |
|---|---|---|
| committer | Ian Moffett <ian@osmora.org> | 2025-07-05 01:03:23 +0000 |
| commit | 627c047d1ce71c9882cefac41a0d0b3c9d379c5b (patch) | |
| tree | 951a98b4421e943e5d2c7f34131cab1796650254 /sys/include | |
| parent | 6856d7533b4cec8d35639578b02578f28f3699bc (diff) | |
kernel/amd64: Add 'feat' field in cpu_info
Keep track of per-cpu features by using a 'feat' field which contains
the results of various CPUIDs.
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'sys/include')
| -rw-r--r-- | sys/include/arch/amd64/cpu.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sys/include/arch/amd64/cpu.h b/sys/include/arch/amd64/cpu.h index 2d08d6e..fe8fc8a 100644 --- a/sys/include/arch/amd64/cpu.h +++ b/sys/include/arch/amd64/cpu.h @@ -38,8 +38,13 @@ #define CPU_IRQ(IRQ_N) (BIT((IRQ_N)) & 0xFF) +/* Feature bits */ +#define CPU_FEAT_SMAP BIT(0) +#define CPU_FEAT_SMEP BIT(1) + struct cpu_info { uint32_t apicid; + uint32_t feat; uint8_t has_x2apic : 1; uint8_t tlb_shootdown : 1; uint8_t ipl; |