Dedup the code for generating (most of) the per-type PT_* masks in paging_tmpl.h. The relevant macros only vary based on the number of bits per level, and that smidge of info is already provided in a common form as PT_LEVEL_BITS. No functional change intended. Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx> --- arch/x86/kvm/mmu/paging.h | 23 ----------------------- arch/x86/kvm/mmu/paging_tmpl.h | 25 +++++++++++-------------- 2 files changed, 11 insertions(+), 37 deletions(-) diff --git a/arch/x86/kvm/mmu/paging.h b/arch/x86/kvm/mmu/paging.h index 6a63727cc7e8..9de4976b2d46 100644 --- a/arch/x86/kvm/mmu/paging.h +++ b/arch/x86/kvm/mmu/paging.h @@ -5,28 +5,5 @@ #define GUEST_PT64_BASE_ADDR_MASK (((1ULL << 52) - 1) & ~(u64)(PAGE_SIZE-1)) -#define PT64_LEVEL_BITS 9 - -#define PT64_INDEX(address, level) __PT_INDEX(address, level, PT64_LEVEL_BITS) - -#define PT64_LVL_ADDR_MASK(level) \ - __PT_LVL_ADDR_MASK(GUEST_PT64_BASE_ADDR_MASK, level, PT64_LEVEL_BITS) - -#define PT64_LVL_OFFSET_MASK(level) \ - __PT_LVL_OFFSET_MASK(GUEST_PT64_BASE_ADDR_MASK, level, PT64_LEVEL_BITS) - - -#define PT32_LEVEL_SHIFT(level) __PT_LEVEL_SHIFT(level, PT32_LEVEL_BITS) - -#define PT32_LVL_OFFSET_MASK(level) \ - __PT_LVL_OFFSET_MASK(PT32_BASE_ADDR_MASK, level, PT32_LEVEL_BITS) - -#define PT32_INDEX(address, level) __PT_INDEX(address, level, PT32_LEVEL_BITS) - -#define PT32_BASE_ADDR_MASK PAGE_MASK - -#define PT32_LVL_ADDR_MASK(level) \ - __PT_LVL_ADDR_MASK(PT32_BASE_ADDR_MASK, level, PT32_LEVEL_BITS) - #endif /* __KVM_X86_PAGING_H */ diff --git a/arch/x86/kvm/mmu/paging_tmpl.h b/arch/x86/kvm/mmu/paging_tmpl.h index d68cc7a5ef81..4fcde3a18f5f 100644 --- a/arch/x86/kvm/mmu/paging_tmpl.h +++ b/arch/x86/kvm/mmu/paging_tmpl.h @@ -16,8 +16,9 @@ */ /* - * We need the mmu code to access both 32-bit and 64-bit guest ptes, - * so the code in this file is compiled twice, once per pte size. + * The MMU needs to be able to access/walk 32-bit and 64-bit guest page tables, + * as well as guest EPT tables, so the code in this file is compiled thrice, + * once per guest PTE type. The per-type defines are #undef'd at the end. */ #if PTTYPE == 64 @@ -25,10 +26,7 @@ #define guest_walker guest_walker64 #define FNAME(name) paging##64_##name #define PT_BASE_ADDR_MASK GUEST_PT64_BASE_ADDR_MASK - #define PT_LVL_ADDR_MASK(lvl) PT64_LVL_ADDR_MASK(lvl) - #define PT_LVL_OFFSET_MASK(lvl) PT64_LVL_OFFSET_MASK(lvl) - #define PT_INDEX(addr, level) PT64_INDEX(addr, level) - #define PT_LEVEL_BITS PT64_LEVEL_BITS + #define PT_LEVEL_BITS 9 #define PT_GUEST_DIRTY_SHIFT PT_DIRTY_SHIFT #define PT_GUEST_ACCESSED_SHIFT PT_ACCESSED_SHIFT #define PT_HAVE_ACCESSED_DIRTY(mmu) true @@ -41,10 +39,7 @@ #define pt_element_t u32 #define guest_walker guest_walker32 #define FNAME(name) paging##32_##name - #define PT_BASE_ADDR_MASK PT32_BASE_ADDR_MASK - #define PT_LVL_ADDR_MASK(lvl) PT32_LVL_ADDR_MASK(lvl) - #define PT_LVL_OFFSET_MASK(lvl) PT32_LVL_OFFSET_MASK(lvl) - #define PT_INDEX(addr, level) PT32_INDEX(addr, level) + #define PT_BASE_ADDR_MASK PAGE_MASK #define PT_LEVEL_BITS PT32_LEVEL_BITS #define PT_MAX_FULL_LEVELS 2 #define PT_GUEST_DIRTY_SHIFT PT_DIRTY_SHIFT @@ -60,10 +55,7 @@ #define guest_walker guest_walkerEPT #define FNAME(name) ept_##name #define PT_BASE_ADDR_MASK GUEST_PT64_BASE_ADDR_MASK - #define PT_LVL_ADDR_MASK(lvl) PT64_LVL_ADDR_MASK(lvl) - #define PT_LVL_OFFSET_MASK(lvl) PT64_LVL_OFFSET_MASK(lvl) - #define PT_INDEX(addr, level) PT64_INDEX(addr, level) - #define PT_LEVEL_BITS PT64_LEVEL_BITS + #define PT_LEVEL_BITS 9 #define PT_GUEST_DIRTY_SHIFT 9 #define PT_GUEST_ACCESSED_SHIFT 8 #define PT_HAVE_ACCESSED_DIRTY(mmu) (!(mmu)->cpu_role.base.ad_disabled) @@ -72,6 +64,11 @@ #error Invalid PTTYPE value #endif +/* Common logic, but per-type values. These also need to be undefined. */ +#define PT_LVL_ADDR_MASK(lvl) __PT_LVL_ADDR_MASK(PT_BASE_ADDR_MASK, lvl, PT_LEVEL_BITS) +#define PT_LVL_OFFSET_MASK(lvl) __PT_LVL_OFFSET_MASK(PT_BASE_ADDR_MASK, lvl, PT_LEVEL_BITS) +#define PT_INDEX(addr, lvl) __PT_INDEX(addr, lvl, PT_LEVEL_BITS) + #define PT_GUEST_DIRTY_MASK (1 << PT_GUEST_DIRTY_SHIFT) #define PT_GUEST_ACCESSED_MASK (1 << PT_GUEST_ACCESSED_SHIFT) -- 2.36.1.476.g0c4daa206d-goog
