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KVM: report 1GB page support to userspace

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If userspace knows that the kernel part supports 1GB pages it can enable
the corresponding cpuid bit so that guests actually use GB pages.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Joerg Roedel
2009-07-27 16:30:48 +02:00
committed by Avi Kivity
parent 04326caacf
commit 344f414fa0
4 changed files with 16 additions and 1 deletions
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arch/x86/include/asm/kvm_host.h
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@ -528,6 +528,8 @@ struct kvm_x86_ops {
int (*set_tss_addr)(struct kvm *kvm, unsigned int addr);
int (*get_tdp_level)(void);
u64 (*get_mt_mask)(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio);
bool (*gb_page_enable)(void);
const struct trace_print_flags *exit_reasons_str;
};