[PATCH v2 2/3] KVM: VMX: join functions that disable x2apic msr intercepts

From: Radim KrÄmÃÅ
Date: Thu Sep 29 2016 - 16:43:45 EST


vmx_disable_intercept_msr_read_x2apic() and
vmx_disable_intercept_msr_write_x2apic() differed only in the type.
Pass the type to a new function.

Signed-off-by: Radim KrÄmÃÅ <rkrcmar@xxxxxxxxxx>
---
arch/x86/kvm/vmx.c | 36 ++++++++++--------------------------
1 file changed, 10 insertions(+), 26 deletions(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 7ea77f0731f4..159cc65755ec 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -4656,33 +4656,18 @@ static void vmx_disable_intercept_for_msr(u32 msr, bool longmode_only)
msr, MSR_TYPE_R | MSR_TYPE_W);
}

-static void vmx_disable_intercept_msr_read_x2apic(u32 msr, bool apicv_active)
+static void vmx_disable_intercept_msr_x2apic(u32 msr, int type, bool apicv_active)
{
if (apicv_active) {
__vmx_disable_intercept_for_msr(vmx_msr_bitmap_legacy_x2apic_apicv,
- msr, MSR_TYPE_R);
+ msr, type);
__vmx_disable_intercept_for_msr(vmx_msr_bitmap_longmode_x2apic_apicv,
- msr, MSR_TYPE_R);
+ msr, type);
} else {
__vmx_disable_intercept_for_msr(vmx_msr_bitmap_legacy_x2apic,
- msr, MSR_TYPE_R);
+ msr, type);
__vmx_disable_intercept_for_msr(vmx_msr_bitmap_longmode_x2apic,
- msr, MSR_TYPE_R);
- }
-}
-
-static void vmx_disable_intercept_msr_write_x2apic(u32 msr, bool apicv_active)
-{
- if (apicv_active) {
- __vmx_disable_intercept_for_msr(vmx_msr_bitmap_legacy_x2apic_apicv,
- msr, MSR_TYPE_W);
- __vmx_disable_intercept_for_msr(vmx_msr_bitmap_longmode_x2apic_apicv,
- msr, MSR_TYPE_W);
- } else {
- __vmx_disable_intercept_for_msr(vmx_msr_bitmap_legacy_x2apic,
- msr, MSR_TYPE_W);
- __vmx_disable_intercept_for_msr(vmx_msr_bitmap_longmode_x2apic,
- msr, MSR_TYPE_W);
+ msr, type);
}
}

@@ -6469,23 +6454,22 @@ static __init int hardware_setup(void)
for (msr = 0x800; msr <= 0x8ff; msr++) {
if (msr == 0x839 /* TMCCT */)
continue;
- vmx_disable_intercept_msr_read_x2apic(msr, true);
+ vmx_disable_intercept_msr_x2apic(msr, MSR_TYPE_R, true);
}

/* TPR */
- vmx_disable_intercept_msr_write_x2apic(0x808, true);
+ vmx_disable_intercept_msr_x2apic(0x808, MSR_TYPE_W, true);
/* EOI */
- vmx_disable_intercept_msr_write_x2apic(0x80b, true);
+ vmx_disable_intercept_msr_x2apic(0x80b, MSR_TYPE_W, true);
/* SELF-IPI */
- vmx_disable_intercept_msr_write_x2apic(0x83f, true);
+ vmx_disable_intercept_msr_x2apic(0x83f, MSR_TYPE_W, true);

/*
* (enable_apicv && !kvm_vcpu_apicv_active()) ||
* !enable_apicv
*/
/* TPR */
- vmx_disable_intercept_msr_read_x2apic(0x808, false);
- vmx_disable_intercept_msr_write_x2apic(0x808, false);
+ vmx_disable_intercept_msr_x2apic(0x808, MSR_TYPE_R | MSR_TYPE_W, false);

if (enable_ept) {
kvm_mmu_set_mask_ptes(VMX_EPT_READABLE_MASK,
--
2.10.0