[RFC][PATCH 12/34] x86/cpu/intel: Actually use "address configuration" infrastructure for MKTME

Dave Hansen
2024-02-22T18:39:43Z

Now that the TME detection is only called once at boot, stop twiddling
'boot_cpu_data' directly and move over to 'bsp_addr_config'.

Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
---

b/arch/x86/kernel/cpu/intel.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)

diff -puN arch/x86/kernel/cpu/intel.c~intel-addr-reduce arch/x86/kernel/cpu/intel.c
--- a/arch/x86/kernel/cpu/intel.c~intel-addr-reduce 2024-02-22 10:08:54.296682462 -0800
+++ b/arch/x86/kernel/cpu/intel.c 2024-02-22 10:08:54.296682462 -0800
@@ -401,11 +401,8 @@ detect_keyid_bits:
mktme_status = MKTME_ENABLED;
}

- /*
- * KeyID bits effectively lower the number of physical address
- * bits. Update cpuinfo_x86::x86_phys_bits accordingly.
- */
- c->x86_phys_bits -= keyid_bits;
+ /* KeyID bits effectively lower the number of physical address bits */
+ bsp_addr_config.phys_addr_reduction_bits = keyid_bits;
}

static void bsp_init_intel(struct cpuinfo_x86 *c)
_