[PATCH v3 04/41] x86/sev: Move check for SNP Secure TSC support to tsc_early_init()

[Sean Christopherson <seanjc@xxxxxxxxxx>]

Move the check on having a Secure TSC to the common tsc_early_init() so
that it's obvious that having a Secure TSC is conditional, and to prepare
for adding TDX to the mix (blindly initializing *both* SNP and TDX TSC
logic looks especially weird).

No functional change intended.

Cc: Tom Lendacky <thomas.lendacky@xxxxxxx>
Reviewed-by: Nikunj A Dadhania <nikunj@xxxxxxx>
Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
 arch/x86/coco/sev/core.c | 3 ---
 arch/x86/kernel/tsc.c    | 3 ++-
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/x86/coco/sev/core.c b/arch/x86/coco/sev/core.c
index 14ced854cd83..39fb50697542 100644
--- a/arch/x86/coco/sev/core.c
+++ b/arch/x86/coco/sev/core.c
@@ -2029,9 +2029,6 @@ void __init snp_secure_tsc_init(void)
        unsigned long tsc_freq_mhz;
        void *mem;
 
-       if (!cc_platform_has(CC_ATTR_GUEST_SNP_SECURE_TSC))
-               return;
-
        mem = early_memremap_encrypted(sev_secrets_pa, PAGE_SIZE);
        if (!mem) {
                pr_err("Unable to get TSC_FACTOR: failed to map the SNP secrets 
page.\n");
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index 7e639c0a94a2..243999692aea 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -1559,7 +1559,8 @@ void __init tsc_early_init(void)
        if (is_early_uv_system())
                return;
 
-       snp_secure_tsc_init();
+       if (cc_platform_has(CC_ATTR_GUEST_SNP_SECURE_TSC))
+               snp_secure_tsc_init();
 
        if (!determine_cpu_tsc_frequencies(true))
                return;
-- 
2.54.0.563.g4f69b47b94-goog