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Subject: [RFC][PATCH 12/34] x86/cpu/intel: Actually use "address configuration" infrastructure for MKTME
To: linux-kernel@vger.kernel.org
Cc: kirill.shutemov@linux.intel.com,pbonzini@redhat.com,tglx@linutronix.de,x86@kernel.org,bp@alien8.de,Dave Hansen <dave.hansen@linux.intel.com>
From: Dave Hansen <dave.hansen@linux.intel.com>
Date: Thu, 22 Feb 2024 10:39:42 -0800
References: <20240222183926.517AFCD2@davehans-spike.ostc.intel.com>
In-Reply-To: <20240222183926.517AFCD2@davehans-spike.ostc.intel.com>
Message-Id: <20240222183942.601EE2E5@davehans-spike.ostc.intel.com>
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From: Dave Hansen <dave.hansen@linux.intel.com>

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)
_