From 09941fbb712655cde9b350852be7a99a6f61a03f Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Thu, 30 Aug 2012 01:30:20 +0200 Subject: [PATCH] KVM: SVM: constify lookup tables We never modify direct_access_msrs[], msrpm_ranges[], svm_exit_handlers[] or x86_intercept_map[] at runtime. Mark them r/o. Signed-off-by: Mathias Krause Cc: Joerg Roedel Signed-off-by: Avi Kivity --- arch/x86/kvm/svm.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 31be4a557447..611c72875fb9 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -163,7 +163,7 @@ static DEFINE_PER_CPU(u64, current_tsc_ratio); #define MSR_INVALID 0xffffffffU -static struct svm_direct_access_msrs { +static const struct svm_direct_access_msrs { u32 index; /* Index of the MSR */ bool always; /* True if intercept is always on */ } direct_access_msrs[] = { @@ -400,7 +400,7 @@ struct svm_init_data { int r; }; -static u32 msrpm_ranges[] = {0, 0xc0000000, 0xc0010000}; +static const u32 msrpm_ranges[] = {0, 0xc0000000, 0xc0010000}; #define NUM_MSR_MAPS ARRAY_SIZE(msrpm_ranges) #define MSRS_RANGE_SIZE 2048 @@ -3267,7 +3267,7 @@ static int pause_interception(struct vcpu_svm *svm) return 1; } -static int (*svm_exit_handlers[])(struct vcpu_svm *svm) = { +static int (*const svm_exit_handlers[])(struct vcpu_svm *svm) = { [SVM_EXIT_READ_CR0] = cr_interception, [SVM_EXIT_READ_CR3] = cr_interception, [SVM_EXIT_READ_CR4] = cr_interception, @@ -4068,7 +4068,7 @@ static void svm_fpu_deactivate(struct kvm_vcpu *vcpu) #define POST_MEM(exit) { .exit_code = (exit), \ .stage = X86_ICPT_POST_MEMACCESS, } -static struct __x86_intercept { +static const struct __x86_intercept { u32 exit_code; enum x86_intercept_stage stage; } x86_intercept_map[] = { -- 2.20.1