vMTRR does not depend on any host MTRR feature and fixed MTRRs have always
been implemented, so drop this field
Signed-off-by: Xiao Guangrong <guangrong.x...@linux.intel.com>
---
arch/x86/include/asm/kvm_host.h | 9 ++++++++-
arch/x86/kvm/mtrr.c | 7 +++----
arch/x86/kvm/x86.c | 1 -
3 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index cf8d320..cbf9f07 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -342,6 +342,13 @@ enum {
KVM_DEBUGREG_RELOAD = 4,
};
+struct kvm_mtrr {
+ struct mtrr_var_range var_ranges[MTRR_MAX_VAR_RANGES];
+ mtrr_type fixed_ranges[KVM_NR_FIXED_MTRR_REGION];
+ unsigned char enabled;
+ mtrr_type def_type;
+};
+
struct kvm_vcpu_arch {
/*
* rip and regs accesses must go through
@@ -472,7 +479,7 @@ struct kvm_vcpu_arch {
bool nmi_injected; /* Trying to inject an NMI this entry */
bool smi_pending; /* SMI queued after currently running handler */
- struct mtrr_state_type mtrr_state;
+ struct kvm_mtrr mtrr_state;
u64 pat;
unsigned switch_db_regs;
diff --git a/arch/x86/kvm/mtrr.c b/arch/x86/kvm/mtrr.c
index a05846a..ce061ff 100644
--- a/arch/x86/kvm/mtrr.c
+++ b/arch/x86/kvm/mtrr.c
@@ -103,7 +103,7 @@ EXPORT_SYMBOL_GPL(kvm_mtrr_valid);
static void update_mtrr(struct kvm_vcpu *vcpu, u32 msr)
{
- struct mtrr_state_type *mtrr_state = &vcpu->arch.mtrr_state;
+ struct kvm_mtrr *mtrr_state = &vcpu->arch.mtrr_state;
unsigned char mtrr_enabled = mtrr_state->enabled;
gfn_t start, end, mask;
int index;
@@ -247,7 +247,7 @@ int kvm_mtrr_get_msr(struct kvm_vcpu *vcpu, u32 msr, u64
*pdata)
* The function is based on mtrr_type_lookup() in
* arch/x86/kernel/cpu/mtrr/generic.c
*/
-static int get_mtrr_type(struct mtrr_state_type *mtrr_state,
+static int get_mtrr_type(struct kvm_mtrr *mtrr_state,
u64 start, u64 end)
{
u64 base, mask;
@@ -262,8 +262,7 @@ static int get_mtrr_type(struct mtrr_state_type *mtrr_state,
end--;
/* Look in fixed ranges. Just return the type as per start */
- if (mtrr_state->have_fixed && (mtrr_state->enabled & 0x1) &&
- (start < 0x100000)) {
+ if ((mtrr_state->enabled & 0x1) && (start < 0x100000)) {
int idx;
if (start < 0x80000) {
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index fb6c9a1..2ffad7f 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7379,7 +7379,6 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
{
int r;
- vcpu->arch.mtrr_state.have_fixed = 1;
r = vcpu_load(vcpu);
if (r)
return r;
--
2.1.0
--
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