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KVM: VMX: Expose various module param vars via capabilities.h

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Expose the variables associated with various module params that are
needed by the nested VMX code.  There is no ulterior logic for what
variables are/aren't exposed, this is purely "what's needed by the
nested code".

Note that @nested is intentionally not exposed.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2018-12-03 13:53:03 -08:00 committed by Paolo Bonzini
parent 3077c19108
commit 2c4fd91d26
2 changed files with 13 additions and 6 deletions
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7
arch/x86/kvm/vmx/capabilities.h
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@ -4,6 +4,13 @@
#include "lapic.h"
extern bool __read_mostly enable_vpid;
extern bool __read_mostly flexpriority_enabled;
extern bool __read_mostly enable_ept;
extern bool __read_mostly enable_unrestricted_guest;
extern bool __read_mostly enable_ept_ad_bits;
extern bool __read_mostly enable_pml;
struct nested_vmx_msrs {
/*
* We only store the "true" versions of the VMX capability MSRs. We

12
arch/x86/kvm/vmx/vmx.c
View File

@ -73,23 +73,23 @@ static const struct x86_cpu_id vmx_cpu_id[] = {
};
MODULE_DEVICE_TABLE(x86cpu, vmx_cpu_id);
static bool __read_mostly enable_vpid = 1;
bool __read_mostly enable_vpid = 1;
module_param_named(vpid, enable_vpid, bool, 0444);
static bool __read_mostly enable_vnmi = 1;
module_param_named(vnmi, enable_vnmi, bool, S_IRUGO);
static bool __read_mostly flexpriority_enabled = 1;
bool __read_mostly flexpriority_enabled = 1;
module_param_named(flexpriority, flexpriority_enabled, bool, S_IRUGO);
static bool __read_mostly enable_ept = 1;
bool __read_mostly enable_ept = 1;
module_param_named(ept, enable_ept, bool, S_IRUGO);
static bool __read_mostly enable_unrestricted_guest = 1;
bool __read_mostly enable_unrestricted_guest = 1;
module_param_named(unrestricted_guest,
enable_unrestricted_guest, bool, S_IRUGO);
static bool __read_mostly enable_ept_ad_bits = 1;
bool __read_mostly enable_ept_ad_bits = 1;
module_param_named(eptad, enable_ept_ad_bits, bool, S_IRUGO);
static bool __read_mostly emulate_invalid_guest_state = true;
@ -116,7 +116,7 @@ module_param(nested_early_check, bool, S_IRUGO);
static u64 __read_mostly host_xss;
static bool __read_mostly enable_pml = 1;
bool __read_mostly enable_pml = 1;
module_param_named(pml, enable_pml, bool, S_IRUGO);
#define MSR_TYPE_R 1