Add two helpers
- kvm_is_cr0_bit_set()
- kvm_is_cr4_bit_set()
to do CR0/CR4 check on one specific bit and return the value in bool.
Replace kvm_read_{cr0,cr4}_bits() with kvm_is_{cr0,cr4}_bit_set() when applicable.
Also change return type of is_pae(), is_pse(), is_paging() and is_long_mode()
to bool.
No functional change intended.
The patch series is originated from cleanup code of KVM LAM enabling patchset by
Robert Hu
(https://lore.kernel.org/all/20230227084547.404871-3-robert.hu@xxxxxxxxxxxxxxx),
and suggested by Sean Christopherson during code review
(https://lore.kernel.org/all/ZAuRec2NkC3+4jvD@xxxxxxxxxx).
Binbin Wu (4):
KVM: x86: Add helpers to check bit set in CR0/CR4 and return in bool
KVM: x86: Replace kvm_read_{cr0,cr4}_bits() with
kvm_is_{cr0,cr4}_bit_set()
KVM: SVM: Remove implicit cast from ulong to bool in
svm_can_emulate_instruction()
KVM: x86: Change return type of is_long_mode() to bool
arch/x86/kvm/cpuid.c | 4 ++--
arch/x86/kvm/kvm_cache_regs.h | 16 ++++++++++++++++
arch/x86/kvm/mmu.h | 2 +-
arch/x86/kvm/svm/svm.c | 9 +++------
arch/x86/kvm/vmx/nested.c | 2 +-
arch/x86/kvm/vmx/vmx.c | 2 +-
arch/x86/kvm/x86.c | 20 ++++++++++----------
arch/x86/kvm/x86.h | 22 +++++++++++-----------
8 files changed, 45 insertions(+), 32 deletions(-)
--
2.25.1
