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Date: Tue, 15 Sep 2020 17:43:06 +0200 From: Vitaly Kuznetsov <vkuznets@...hat.com> To: kvm@...r.kernel.org, Paolo Bonzini <pbonzini@...hat.com> Cc: Sean Christopherson <sean.j.christopherson@...el.com>, Wanpeng Li <wanpengli@...cent.com>, Jim Mattson <jmattson@...gle.com>, "Dr . David Alan Gilbert" <dgilbert@...hat.com>, Wei Huang <whuang2@....com>, linux-kernel@...r.kernel.org Subject: [PATCH RFC 2/2] KVM: x86: bump KVM_MAX_CPUID_ENTRIES As vcpu->arch.cpuid_entries is now allocated dynamically, the only remaining use for KVM_MAX_CPUID_ENTRIES is to check KVM_SET_CPUID/ KVM_SET_CPUID2 input for sanity. Since it was reported that the current limit (80) is insufficient for some CPUs, bump KVM_MAX_CPUID_ENTRIES and use an arbitrary value '256' as the new limit. Signed-off-by: Vitaly Kuznetsov <vkuznets@...hat.com> --- arch/x86/include/asm/kvm_host.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 0c5f2ca3e838..c1d942c9eb58 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -132,7 +132,7 @@ static inline gfn_t gfn_to_index(gfn_t gfn, gfn_t base_gfn, int level) #define KVM_NUM_MMU_PAGES (1 << KVM_MMU_HASH_SHIFT) #define KVM_MIN_FREE_MMU_PAGES 5 #define KVM_REFILL_PAGES 25 -#define KVM_MAX_CPUID_ENTRIES 80 +#define KVM_MAX_CPUID_ENTRIES 256 #define KVM_NR_FIXED_MTRR_REGION 88 #define KVM_NR_VAR_MTRR 8 -- 2.25.4
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