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Suggested-by: Andrew Cooper Signed-off-by: Demi Marie Obenour Reviewed-by: Jan Beulich --- Changes since v2: Style adjustments --- xen/arch/x86/hvm/hvm.c | 12 ++++---- xen/arch/x86/hvm/mtrr.c | 52 ++++++++++++++++----------------- xen/arch/x86/hvm/vmx/vmx.c | 16 +++++----- xen/arch/x86/include/asm/mtrr.h | 12 +------- xen/arch/x86/mm/p2m-ept.c | 4 +-- xen/arch/x86/mm/shadow/multi.c | 4 +-- 6 files changed, 45 insertions(+), 55 deletions(-) diff --git a/xen/arch/x86/hvm/hvm.c b/xen/arch/x86/hvm/hvm.c index ae4368ec4b338cf8c6cb14d383f612c91c98e800..00b3fa56e25e2934e2870e11fd19b120daff2715 100644 --- a/xen/arch/x86/hvm/hvm.c +++ b/xen/arch/x86/hvm/hvm.c @@ -307,12 +307,12 @@ int hvm_set_guest_pat(struct vcpu *v, uint64_t guest_pat) for ( i = 0, tmp = guest_pat; i < 8; i++, tmp >>= 8 ) switch ( tmp & 0xff ) { - case PAT_TYPE_UC_MINUS: - case PAT_TYPE_UNCACHABLE: - case PAT_TYPE_WRBACK: - case PAT_TYPE_WRCOMB: - case PAT_TYPE_WRPROT: - case PAT_TYPE_WRTHROUGH: + case X86_MT_UCM: + case X86_MT_UC: + case X86_MT_WB: + case X86_MT_WC: + case X86_MT_WP: + case X86_MT_WT: break; default: return 0; diff --git a/xen/arch/x86/hvm/mtrr.c b/xen/arch/x86/hvm/mtrr.c index 4d2aa6def86de45aeeaade7a1a7815c5ef2b3d7a..242623f3c239ee18a44f882ecb3910a00c615825 100644 --- a/xen/arch/x86/hvm/mtrr.c +++ b/xen/arch/x86/hvm/mtrr.c @@ -37,7 +37,7 @@ static const uint8_t pat_entry_2_pte_flags[8] = { _PAGE_PAT | _PAGE_PCD, _PAGE_PAT | _PAGE_PCD | _PAGE_PWT }; /* Effective mm type lookup table, according to MTRR and PAT. */ -static const uint8_t mm_type_tbl[MTRR_NUM_TYPES][PAT_TYPE_NUMS] = { +static const uint8_t mm_type_tbl[MTRR_NUM_TYPES][X86_NUM_MT] = { #define RS MEMORY_NUM_TYPES #define UC MTRR_TYPE_UNCACHABLE #define WB MTRR_TYPE_WRBACK @@ -72,8 +72,8 @@ static uint8_t __read_mostly mtrr_epat_tbl[MTRR_NUM_TYPES][MEMORY_NUM_TYPES] = }; /* Lookup table for PAT entry of a given PAT value in host PAT. */ -static uint8_t __read_mostly pat_entry_tbl[PAT_TYPE_NUMS] = - { [0 ... PAT_TYPE_NUMS-1] = INVALID_MEM_TYPE }; +static uint8_t __read_mostly pat_entry_tbl[X86_NUM_MT] = + { [0 ... X86_NUM_MT - 1] = INVALID_MEM_TYPE }; static int __init cf_check hvm_mtrr_pat_init(void) { @@ -81,7 +81,7 @@ static int __init cf_check hvm_mtrr_pat_init(void) for ( i = 0; i < MTRR_NUM_TYPES; i++ ) { - for ( j = 0; j < PAT_TYPE_NUMS; j++ ) + for ( j = 0; j < X86_NUM_MT; j++ ) { unsigned int tmp = mm_type_tbl[i][j]; @@ -90,9 +90,9 @@ static int __init cf_check hvm_mtrr_pat_init(void) } } - for ( i = 0; i < PAT_TYPE_NUMS; i++ ) + for ( i = 0; i < X86_NUM_MT; i++ ) { - for ( j = 0; j < PAT_TYPE_NUMS; j++ ) + for ( j = 0; j < X86_NUM_MT; j++ ) { if ( pat_cr_2_paf(XEN_MSR_PAT, j) == i ) { @@ -115,7 +115,7 @@ uint8_t pat_type_2_pte_flags(uint8_t pat_type) * given pat_type. If host PAT covers all the PAT types, it can't happen. */ if ( unlikely(pat_entry == INVALID_MEM_TYPE) ) - pat_entry = pat_entry_tbl[PAT_TYPE_UNCACHABLE]; + pat_entry = pat_entry_tbl[X86_MT_UC]; return pat_entry_2_pte_flags[pat_entry]; } @@ -145,14 +145,14 @@ int hvm_vcpu_cacheattr_init(struct vcpu *v) m->mtrr_cap = (1u << 10) | (1u << 8) | num_var_ranges; v->arch.hvm.pat_cr = - ((uint64_t)PAT_TYPE_WRBACK) | /* PAT0: WB */ - ((uint64_t)PAT_TYPE_WRTHROUGH << 8) | /* PAT1: WT */ - ((uint64_t)PAT_TYPE_UC_MINUS << 16) | /* PAT2: UC- */ - ((uint64_t)PAT_TYPE_UNCACHABLE << 24) | /* PAT3: UC */ - ((uint64_t)PAT_TYPE_WRBACK << 32) | /* PAT4: WB */ - ((uint64_t)PAT_TYPE_WRTHROUGH << 40) | /* PAT5: WT */ - ((uint64_t)PAT_TYPE_UC_MINUS << 48) | /* PAT6: UC- */ - ((uint64_t)PAT_TYPE_UNCACHABLE << 56); /* PAT7: UC */ + ((uint64_t)X86_MT_WB) | /* PAT0: WB */ + ((uint64_t)X86_MT_WT << 8) | /* PAT1: WT */ + ((uint64_t)X86_MT_UCM << 16) | /* PAT2: UC- */ + ((uint64_t)X86_MT_UC << 24) | /* PAT3: UC */ + ((uint64_t)X86_MT_WB << 32) | /* PAT4: WB */ + ((uint64_t)X86_MT_WT << 40) | /* PAT5: WT */ + ((uint64_t)X86_MT_UCM << 48) | /* PAT6: UC- */ + ((uint64_t)X86_MT_UC << 56); /* PAT7: UC */ if ( is_hardware_domain(v->domain) ) { @@ -356,7 +356,7 @@ uint32_t get_pat_flags(struct vcpu *v, */ pat_entry_value = mtrr_epat_tbl[shadow_mtrr_type][guest_eff_mm_type]; /* If conflit occurs(e.g host MTRR is UC, guest memory type is - * WB),set UC as effective memory. Here, returning PAT_TYPE_UNCACHABLE will + * WB), set UC as effective memory. Here, returning X86_MT_UC will * always set effective memory as UC. */ if ( pat_entry_value == INVALID_MEM_TYPE ) @@ -371,7 +371,7 @@ uint32_t get_pat_flags(struct vcpu *v, "because the host mtrr type is:%d\n", gl1e_flags, (uint64_t)gpaddr, guest_eff_mm_type, shadow_mtrr_type); - pat_entry_value = PAT_TYPE_UNCACHABLE; + pat_entry_value = X86_MT_UC; } /* 4. Get the pte flags */ return pat_type_2_pte_flags(pat_entry_value); @@ -620,13 +620,13 @@ int hvm_set_mem_pinned_cacheattr(struct domain *d, uint64_t gfn_start, p2m_memory_type_changed(d); switch ( type ) { - case PAT_TYPE_UC_MINUS: + case X86_MT_UCM: /* * For EPT we can also avoid the flush in this case; * see epte_get_entry_emt(). */ if ( hap_enabled(d) && cpu_has_vmx ) - case PAT_TYPE_UNCACHABLE: + case X86_MT_UC: break; /* fall through */ default: @@ -638,12 +638,12 @@ int hvm_set_mem_pinned_cacheattr(struct domain *d, uint64_t gfn_start, rcu_read_unlock(&pinned_cacheattr_rcu_lock); return -ENOENT; - case PAT_TYPE_UC_MINUS: - case PAT_TYPE_UNCACHABLE: - case PAT_TYPE_WRBACK: - case PAT_TYPE_WRCOMB: - case PAT_TYPE_WRPROT: - case PAT_TYPE_WRTHROUGH: + case X86_MT_UCM: + case X86_MT_UC: + case X86_MT_WB: + case X86_MT_WC: + case X86_MT_WP: + case X86_MT_WT: break; default: @@ -681,7 +681,7 @@ int hvm_set_mem_pinned_cacheattr(struct domain *d, uint64_t gfn_start, list_add_rcu(&range->list, &d->arch.hvm.pinned_cacheattr_ranges); p2m_memory_type_changed(d); - if ( type != PAT_TYPE_WRBACK ) + if ( type != X86_MT_WB ) flush_all(FLUSH_CACHE); return 0; diff --git a/xen/arch/x86/hvm/vmx/vmx.c b/xen/arch/x86/hvm/vmx/vmx.c index 7c81b80710f99e08fe8291d3e413c449322b777d..b543c3983d77ae807e8bd97330691a79d8d39bae 100644 --- a/xen/arch/x86/hvm/vmx/vmx.c +++ b/xen/arch/x86/hvm/vmx/vmx.c @@ -1231,14 +1231,14 @@ static void cf_check vmx_handle_cd(struct vcpu *v, unsigned long value) * memory type are all UC. */ u64 uc_pat = - ((uint64_t)PAT_TYPE_UNCACHABLE) | /* PAT0 */ - ((uint64_t)PAT_TYPE_UNCACHABLE << 8) | /* PAT1 */ - ((uint64_t)PAT_TYPE_UNCACHABLE << 16) | /* PAT2 */ - ((uint64_t)PAT_TYPE_UNCACHABLE << 24) | /* PAT3 */ - ((uint64_t)PAT_TYPE_UNCACHABLE << 32) | /* PAT4 */ - ((uint64_t)PAT_TYPE_UNCACHABLE << 40) | /* PAT5 */ - ((uint64_t)PAT_TYPE_UNCACHABLE << 48) | /* PAT6 */ - ((uint64_t)PAT_TYPE_UNCACHABLE << 56); /* PAT7 */ + ((uint64_t)X86_MT_UC) | /* PAT0 */ + ((uint64_t)X86_MT_UC << 8) | /* PAT1 */ + ((uint64_t)X86_MT_UC << 16) | /* PAT2 */ + ((uint64_t)X86_MT_UC << 24) | /* PAT3 */ + ((uint64_t)X86_MT_UC << 32) | /* PAT4 */ + ((uint64_t)X86_MT_UC << 40) | /* PAT5 */ + ((uint64_t)X86_MT_UC << 48) | /* PAT6 */ + ((uint64_t)X86_MT_UC << 56); /* PAT7 */ vmx_get_guest_pat(v, pat); vmx_set_guest_pat(v, uc_pat); diff --git a/xen/arch/x86/include/asm/mtrr.h b/xen/arch/x86/include/asm/mtrr.h index 7733800b798fc2c72ba87e4ce6500e4183553d04..92fc930c692039b6c709d6a04f6553593f40aa55 100644 --- a/xen/arch/x86/include/asm/mtrr.h +++ b/xen/arch/x86/include/asm/mtrr.h @@ -16,17 +16,7 @@ #define NORMAL_CACHE_MODE 0 #define NO_FILL_CACHE_MODE 2 -enum { - PAT_TYPE_UNCACHABLE=0, - PAT_TYPE_WRCOMB=1, - PAT_TYPE_WRTHROUGH=4, - PAT_TYPE_WRPROT=5, - PAT_TYPE_WRBACK=6, - PAT_TYPE_UC_MINUS=7, - PAT_TYPE_NUMS -}; - -#define INVALID_MEM_TYPE PAT_TYPE_NUMS +#define INVALID_MEM_TYPE X86_NUM_MT /* In the Intel processor's MTRR interface, the MTRR type is always held in an 8 bit field: */ diff --git a/xen/arch/x86/mm/p2m-ept.c b/xen/arch/x86/mm/p2m-ept.c index d61d66c20e4180f8cbe21bcd97b568519e0b738e..126437285d8a9f222fca6a7b6ff4434b60637847 100644 --- a/xen/arch/x86/mm/p2m-ept.c +++ b/xen/arch/x86/mm/p2m-ept.c @@ -573,8 +573,8 @@ int epte_get_entry_emt(struct domain *d, gfn_t gfn, mfn_t mfn, if ( gmtrr_mtype >= 0 ) { *ipat = true; - return gmtrr_mtype != PAT_TYPE_UC_MINUS ? gmtrr_mtype - : MTRR_TYPE_UNCACHABLE; + return gmtrr_mtype != X86_MT_UCM ? gmtrr_mtype + : MTRR_TYPE_UNCACHABLE; } if ( gmtrr_mtype == -EADDRNOTAVAIL ) return -1; diff --git a/xen/arch/x86/mm/shadow/multi.c b/xen/arch/x86/mm/shadow/multi.c index 6bb564b0145285afc93b72a60b7797fcfe8696dc..b64bba70fc17906236872a017ad48ce91fd30803 100644 --- a/xen/arch/x86/mm/shadow/multi.c +++ b/xen/arch/x86/mm/shadow/multi.c @@ -561,7 +561,7 @@ _sh_propagate(struct vcpu *v, (type = hvm_get_mem_pinned_cacheattr(d, target_gfn, 0)) >= 0 ) sflags |= pat_type_2_pte_flags(type); else if ( d->arch.hvm.is_in_uc_mode ) - sflags |= pat_type_2_pte_flags(PAT_TYPE_UNCACHABLE); + sflags |= pat_type_2_pte_flags(X86_MT_UC); else if ( iomem_access_permitted(d, mfn_x(target_mfn), mfn_x(target_mfn)) ) { @@ -572,7 +572,7 @@ _sh_propagate(struct vcpu *v, mfn_to_maddr(target_mfn), MTRR_TYPE_UNCACHABLE); else if ( iommu_snoop ) - sflags |= pat_type_2_pte_flags(PAT_TYPE_WRBACK); + sflags |= pat_type_2_pte_flags(X86_MT_WB); else sflags |= get_pat_flags(v, gflags, -- Sincerely, Demi Marie Obenour (she/her/hers) Invisible Things Lab