KVM: x86: Make master clock logic in guest PV clock updates 64-bit only

Wrap kvm_guest_time_update()'s entire use_master_clock block in #ifdef
CONFIG_X86_64 and provide a hardcoded-to-false variable for the 32-bit
path, as use_master_clock is never true on 32-bit (host_tsc_clocksource is
only set under CONFIG_X86_64)

Keep the local "ka" variable outside of the 64-bit-only code as it's also
used for Xen code, but tag it as potentially unused since it's not used on
32-bit kernels without Xen emulation.

For all intents and purposes, no functional change intended.

Link: https://patch.msgid.link/20260826213303.914988-16-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

0 files changed, 0 insertions, 0 deletions