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KVM: SVM: Get rid of x86_intercept_map::valid

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By reserving 0 as an invalid x86_intercept_stage, we no longer
need to store a valid flag in x86_intercept_map.

Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Avi Kivity 2011-04-21 12:35:41 +03:00
parent 5ef39c71d8
commit 40e19b519c
2 changed files with 5 additions and 8 deletions
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1
arch/x86/include/asm/kvm_emulate.h
View file

@ -304,6 +304,7 @@ struct x86_emulate_ctxt {
X86EMUL_MODE_PROT64)
enum x86_intercept_stage {
X86_ICTP_NONE = 0, /* Allow zero-init to not match anything */
X86_ICPT_PRE_EXCEPT,
X86_ICPT_POST_EXCEPT,
X86_ICPT_POST_MEMACCESS,

12
arch/x86/kvm/svm.c
View file

@ -3959,19 +3959,15 @@ static void svm_fpu_deactivate(struct kvm_vcpu *vcpu)
}
#define PRE_EX(exit) { .exit_code = (exit), \
.stage = X86_ICPT_PRE_EXCEPT, \
.valid = true }
.stage = X86_ICPT_PRE_EXCEPT, }
#define POST_EX(exit) { .exit_code = (exit), \
.stage = X86_ICPT_POST_EXCEPT, \
.valid = true }
.stage = X86_ICPT_POST_EXCEPT, }
#define POST_MEM(exit) { .exit_code = (exit), \
.stage = X86_ICPT_POST_MEMACCESS, \
.valid = true }
.stage = X86_ICPT_POST_MEMACCESS, }
static struct __x86_intercept {
u32 exit_code;
enum x86_intercept_stage stage;
bool valid;
} x86_intercept_map[] = {
[x86_intercept_cr_read] = POST_EX(SVM_EXIT_READ_CR0),
[x86_intercept_cr_write] = POST_EX(SVM_EXIT_WRITE_CR0),
@ -4039,7 +4035,7 @@ static int svm_check_intercept(struct kvm_vcpu *vcpu,
icpt_info = x86_intercept_map[info->intercept];
if (!icpt_info.valid || stage != icpt_info.stage)
if (stage != icpt_info.stage)
goto out;
switch (icpt_info.exit_code) {