Dong, Eddie wrote: > This is followup of rsvd_bits emulation. > Base on new rsvd_bits emulation patch. thx, eddie
commit 2c1472ef2b9fd87a261e8b58a7db11afd6a111dc Author: root <[email protected]> Date: Mon Mar 30 17:05:47 2009 +0800 Use rsvd_bits_mask in load_pdptrs for cleanup with EXB bit considered. Signed-off-by: Eddie Dong <[email protected]> diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 2eab758..eaf41c0 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -225,11 +225,6 @@ static int is_nx(struct kvm_vcpu *vcpu) return vcpu->arch.shadow_efer & EFER_NX; } -static int is_present_pte(unsigned long pte) -{ - return pte & PT_PRESENT_MASK; -} - static int is_shadow_present_pte(u64 pte) { return pte != shadow_trap_nonpresent_pte @@ -2199,6 +2194,9 @@ void reset_rsvds_bits_mask(struct kvm_vcpu *vcpu, int level) context->rsvd_bits_mask[1][0] = 0; break; case PT32E_ROOT_LEVEL: + context->rsvd_bits_mask[0][2] = exb_bit_rsvd | + rsvd_bits(maxphyaddr, 62) | + rsvd_bits(7, 8) | rsvd_bits(1, 2); /* PDPTE */ context->rsvd_bits_mask[0][1] = exb_bit_rsvd | rsvd_bits(maxphyaddr, 62); /* PDE */ context->rsvd_bits_mask[0][0] = exb_bit_rsvd | diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h index 258e5d5..2a6eb50 100644 --- a/arch/x86/kvm/mmu.h +++ b/arch/x86/kvm/mmu.h @@ -75,4 +75,9 @@ static inline int is_paging(struct kvm_vcpu *vcpu) return vcpu->arch.cr0 & X86_CR0_PG; } +static inline int is_present_pte(unsigned long pte) +{ + return pte & PT_PRESENT_MASK; +} + #endif diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 961bd2b..b449ff0 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -233,7 +233,8 @@ int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3) goto out; } for (i = 0; i < ARRAY_SIZE(pdpte); ++i) { - if ((pdpte[i] & 1) && (pdpte[i] & 0xfffffff0000001e6ull)) { + if (is_present_pte(pdpte[i]) && + (pdpte[i] & vcpu->arch.mmu.rsvd_bits_mask[0][2])) { ret = 0; goto out; }-- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
